id	sid	tid	token	lemma	pos
37894	1	1	A	a	DT
37894	1	2	Quantitative	Quantitative	NNP
37894	1	3	Study	Study	NNP
37894	1	4	of	of	IN
37894	1	5	the	the	DT
37894	1	6	Nocturnal	Nocturnal	NNP
37894	1	7	Migration	Migration	NNP
37894	1	8	of	of	IN
37894	1	9	Birds	Birds	NNPS
37894	1	10	BY	by	IN
37894	1	11	GEORGE	GEORGE	NNP
37894	1	12	H.	H.	NNP
37894	1	13	LOWERY	LOWERY	NNP
37894	1	14	,	,	,
37894	1	15	JR	JR	NNP
37894	1	16	.	.	.
37894	1	17	University	University	NNP
37894	1	18	of	of	IN
37894	1	19	Kansas	Kansas	NNP
37894	1	20	Publications	Publications	NNPS
37894	1	21	Museum	Museum	NNP
37894	1	22	of	of	IN
37894	1	23	Natural	Natural	NNP
37894	1	24	History	History	NNP
37894	1	25	Volume	Volume	NNP
37894	1	26	3	3	CD
37894	1	27	,	,	,
37894	1	28	No	no	UH
37894	1	29	.	.	.
37894	2	1	2	2	CD
37894	2	2	,	,	,
37894	2	3	pp	pp	NNP
37894	2	4	.	.	.
37894	3	1	361	361	CD
37894	3	2	-	-	SYM
37894	3	3	472	472	CD
37894	3	4	,	,	,
37894	3	5	47	47	CD
37894	3	6	figures	figure	NNS
37894	3	7	in	in	IN
37894	3	8	text	text	NN
37894	3	9	June	June	NNP
37894	3	10	29	29	CD
37894	3	11	,	,	,
37894	3	12	1951	1951	CD
37894	3	13	University	University	NNP
37894	3	14	of	of	IN
37894	3	15	Kansas	Kansas	NNP
37894	3	16	LAWRENCE	LAWRENCE	NNP
37894	3	17	1951	1951	CD
37894	3	18	UNIVERSITY	UNIVERSITY	NNP
37894	3	19	OF	of	IN
37894	3	20	KANSAS	KANSAS	NNP
37894	3	21	PUBLICATIONS	PUBLICATIONS	NNP
37894	3	22	,	,	,
37894	3	23	MUSEUM	MUSEUM	NNP
37894	3	24	OF	of	IN
37894	3	25	NATURAL	natural	JJ
37894	3	26	HISTORY	HISTORY	NNP
37894	3	27	Editors	Editors	NNPS
37894	3	28	:	:	:
37894	3	29	E.	E.	NNP
37894	3	30	Raymond	Raymond	NNP
37894	3	31	Hall	Hall	NNP
37894	3	32	,	,	,
37894	3	33	Chairman	Chairman	NNP
37894	3	34	;	;	:
37894	3	35	A.	a.	NN
37894	3	36	Byron	Byron	NNP
37894	3	37	Leonard	Leonard	NNP
37894	3	38	,	,	,
37894	3	39	Edward	Edward	NNP
37894	3	40	H.	H.	NNP
37894	3	41	Taylor	Taylor	NNP
37894	3	42	,	,	,
37894	3	43	Robert	Robert	NNP
37894	3	44	W.	W.	NNP
37894	3	45	Wilson	Wilson	NNP
37894	3	46	UNIVERSITY	UNIVERSITY	NNP
37894	3	47	OF	of	IN
37894	3	48	KANSAS	KANSAS	NNP
37894	3	49	Lawrence	Lawrence	NNP
37894	3	50	,	,	,
37894	3	51	Kansas	Kansas	NNP
37894	3	52	PRINTED	print	VBD
37894	3	53	BY	by	IN
37894	3	54	FERD	FERD	NNP
37894	3	55	VOILAND	VOILAND	NNP
37894	3	56	,	,	,
37894	3	57	JR	JR	NNP
37894	3	58	.	.	NNP
37894	3	59	,	,	,
37894	3	60	STATE	STATE	NNP
37894	3	61	PRINTER	PRINTER	NNP
37894	3	62	TOPEKA	TOPEKA	NNP
37894	3	63	,	,	,
37894	3	64	KANSAS	KANSAS	NNP
37894	3	65	1951	1951	CD
37894	3	66	[	[	-LRB-
37894	3	67	Union	Union	NNP
37894	3	68	Label	Label	NNP
37894	3	69	]	]	-RRB-
37894	3	70	23	23	CD
37894	3	71	-	-	HYPH
37894	3	72	1020	1020	CD
37894	3	73	A	A	NNP
37894	3	74	Quantitative	Quantitative	NNP
37894	3	75	Study	Study	NNP
37894	3	76	of	of	IN
37894	3	77	the	the	DT
37894	3	78	Nocturnal	Nocturnal	NNP
37894	3	79	Migration	Migration	NNP
37894	3	80	of	of	IN
37894	3	81	Birds	Birds	NNPS
37894	3	82	By	by	IN
37894	3	83	GEORGE	GEORGE	NNP
37894	3	84	H.	H.	NNP
37894	3	85	LOWERY	LOWERY	NNP
37894	3	86	,	,	,
37894	3	87	JR	JR	NNP
37894	3	88	.	.	.
37894	4	1	CONTENTS	content	NNS
37894	4	2	Page	page	NN
37894	4	3	INTRODUCTION	introduction	NN
37894	4	4	365	365	CD
37894	4	5	ACKNOWLEDGMENTS	acknowledgment	NNS
37894	4	6	367	367	CD
37894	4	7	PART	PART	VBN
37894	4	8	I.	i.	NN
37894	5	1	FLIGHT	flight	NN
37894	5	2	DENSITIES	density	NNS
37894	5	3	AND	and	CC
37894	5	4	THEIR	their	NN
37894	5	5	DETERMINATION	determination	NN
37894	5	6	370	370	CD
37894	5	7	Lunar	lunar	JJ
37894	5	8	Observations	observation	NNS
37894	5	9	of	of	IN
37894	5	10	Birds	Birds	NNPS
37894	5	11	and	and	CC
37894	5	12	the	the	DT
37894	5	13	Flight	Flight	NNP
37894	5	14	Density	Density	NNP
37894	5	15	Concept	Concept	NNP
37894	5	16	370	370	CD
37894	5	17	Observational	Observational	NNP
37894	5	18	Procedure	Procedure	NNP
37894	5	19	and	and	CC
37894	5	20	the	the	DT
37894	5	21	Processing	Processing	NNP
37894	5	22	of	of	IN
37894	5	23	Data	Data	NNP
37894	5	24	390	390	CD
37894	5	25	PART	PART	NNP
37894	5	26	II	ii	CD
37894	5	27	.	.	.
37894	6	1	THE	the	DT
37894	6	2	NATURE	NATURE	NNP
37894	6	3	OF	of	IN
37894	6	4	NOCTURNAL	NOCTURNAL	NNP
37894	6	5	MIGRATION	migration	NN
37894	6	6	408	408	CD
37894	6	7	Horizontal	horizontal	JJ
37894	6	8	Distribution	distribution	NN
37894	6	9	of	of	IN
37894	6	10	Birds	Birds	NNPS
37894	6	11	on	on	IN
37894	6	12	Narrow	Narrow	NNP
37894	6	13	Fronts	front	NNS
37894	6	14	409	409	CD
37894	6	15	Density	density	NN
37894	6	16	as	as	IN
37894	6	17	a	a	DT
37894	6	18	Function	function	NN
37894	6	19	of	of	IN
37894	6	20	the	the	DT
37894	6	21	Hour	Hour	NNP
37894	6	22	of	of	IN
37894	6	23	the	the	DT
37894	6	24	Night	Night	NNP
37894	6	25	413	413	CD
37894	6	26	Migration	migration	NN
37894	6	27	in	in	IN
37894	6	28	Relation	Relation	NNP
37894	6	29	to	to	IN
37894	6	30	Topography	Topography	NNP
37894	6	31	424	424	CD
37894	6	32	Geographical	Geographical	NNP
37894	6	33	Factors	Factors	NNPS
37894	6	34	and	and	CC
37894	6	35	the	the	DT
37894	6	36	Continental	Continental	NNP
37894	6	37	Density	Density	NNP
37894	6	38	Pattern	Pattern	NNP
37894	6	39	432	432	CD
37894	6	40	Migration	Migration	NNP
37894	6	41	and	and	CC
37894	6	42	Meteorological	Meteorological	NNP
37894	6	43	Conditions	Conditions	NNPS
37894	6	44	453	453	CD
37894	6	45	CONCLUSIONS	conclusion	NNS
37894	6	46	469	469	CD
37894	6	47	LITERATURE	literature	NN
37894	6	48	CITED	cite	VBD
37894	6	49	470	470	CD
37894	6	50	LIST	LIST	NNP
37894	6	51	OF	of	IN
37894	6	52	FIGURES	FIGURES	NNP
37894	6	53	Figure	Figure	NNP
37894	6	54	Page	Page	NNP
37894	6	55	1	1	CD
37894	6	56	.	.	.
37894	7	1	The	the	DT
37894	7	2	field	field	NN
37894	7	3	of	of	IN
37894	7	4	observation	observation	NN
37894	7	5	as	as	IN
37894	7	6	it	-PRON-	PRP
37894	7	7	appears	appear	VBZ
37894	7	8	to	to	IN
37894	7	9	the	the	DT
37894	7	10	observer	observer	NN
37894	7	11	374	374	CD
37894	7	12	2	2	CD
37894	7	13	.	.	.
37894	8	1	Determination	determination	NN
37894	8	2	of	of	IN
37894	8	3	diameter	diameter	NN
37894	8	4	of	of	IN
37894	8	5	cone	cone	NN
37894	8	6	at	at	IN
37894	8	7	any	any	DT
37894	8	8	point	point	NN
37894	8	9	375	375	CD
37894	8	10	3	3	CD
37894	8	11	.	.	.
37894	9	1	Temporal	temporal	JJ
37894	9	2	change	change	NN
37894	9	3	in	in	IN
37894	9	4	size	size	NN
37894	9	5	of	of	IN
37894	9	6	the	the	DT
37894	9	7	field	field	NN
37894	9	8	of	of	IN
37894	9	9	observation	observation	NN
37894	9	10	376	376	CD
37894	9	11	4	4	CD
37894	9	12	.	.	.
37894	10	1	Migration	migration	NN
37894	10	2	at	at	IN
37894	10	3	Ottumwa	Ottumwa	NNP
37894	10	4	,	,	,
37894	10	5	Iowa	Iowa	NNP
37894	10	6	377	377	CD
37894	10	7	5	5	CD
37894	10	8	.	.	.
37894	11	1	Geographic	geographic	JJ
37894	11	2	variation	variation	NN
37894	11	3	in	in	IN
37894	11	4	size	size	NN
37894	11	5	of	of	IN
37894	11	6	cone	cone	NN
37894	11	7	of	of	IN
37894	11	8	observation	observation	NN
37894	11	9	378	378	CD
37894	11	10	6	6	CD
37894	11	11	.	.	.
37894	12	1	The	the	DT
37894	12	2	problem	problem	NN
37894	12	3	of	of	IN
37894	12	4	sampling	sample	VBG
37894	12	5	migrating	migrating	NN
37894	12	6	birds	bird	NNS
37894	12	7	380	380	CD
37894	12	8	7	7	CD
37894	12	9	.	.	.
37894	13	1	The	the	DT
37894	13	2	sampling	sampling	NN
37894	13	3	effect	effect	NN
37894	13	4	of	of	IN
37894	13	5	a	a	DT
37894	13	6	square	square	JJ
37894	13	7	381	381	CD
37894	13	8	8	8	CD
37894	13	9	.	.	.
37894	14	1	Rectangular	rectangular	JJ
37894	14	2	samples	sample	NNS
37894	14	3	of	of	IN
37894	14	4	square	square	JJ
37894	14	5	areas	area	NNS
37894	14	6	382	382	CD
37894	14	7	9	9	CD
37894	14	8	.	.	.
37894	15	1	The	the	DT
37894	15	2	effect	effect	NN
37894	15	3	of	of	IN
37894	15	4	vertical	vertical	JJ
37894	15	5	components	component	NNS
37894	15	6	in	in	IN
37894	15	7	bird	bird	NN
37894	15	8	flight	flight	NNP
37894	15	9	383	383	CD
37894	15	10	10	10	CD
37894	15	11	.	.	.
37894	16	1	The	the	DT
37894	16	2	interceptory	interceptory	JJ
37894	16	3	potential	potential	NN
37894	16	4	of	of	IN
37894	16	5	slanting	slant	VBG
37894	16	6	lines	line	NNS
37894	16	7	384	384	CD
37894	16	8	11	11	CD
37894	16	9	.	.	.
37894	17	1	Theoretical	theoretical	JJ
37894	17	2	possibilities	possibility	NNS
37894	17	3	of	of	IN
37894	17	4	vertical	vertical	JJ
37894	17	5	distribution	distribution	NN
37894	17	6	388	388	CD
37894	17	7	12	12	CD
37894	17	8	.	.	.
37894	18	1	Facsimile	facsimile	NN
37894	18	2	of	of	IN
37894	18	3	form	form	NN
37894	18	4	used	use	VBN
37894	18	5	to	to	TO
37894	18	6	record	record	VB
37894	18	7	data	datum	NNS
37894	18	8	in	in	IN
37894	18	9	the	the	DT
37894	18	10	field	field	NN
37894	18	11	391	391	CD
37894	18	12	13	13	CD
37894	18	13	.	.	.
37894	19	1	The	the	DT
37894	19	2	identification	identification	NN
37894	19	3	of	of	IN
37894	19	4	co	co	NNS
37894	19	5	-	-	NN
37894	19	6	ordinates	ordinate	VBZ
37894	19	7	392	392	CD
37894	19	8	14	14	CD
37894	19	9	.	.	.
37894	20	1	The	the	DT
37894	20	2	apparent	apparent	JJ
37894	20	3	pathways	pathway	NNS
37894	20	4	of	of	IN
37894	20	5	birds	bird	NNS
37894	20	6	seen	see	VBN
37894	20	7	in	in	IN
37894	20	8	one	one	CD
37894	20	9	hour	hour	NN
37894	20	10	393	393	CD
37894	20	11	15	15	CD
37894	20	12	.	.	.
37894	21	1	Standard	standard	JJ
37894	21	2	form	form	NN
37894	21	3	for	for	IN
37894	21	4	plotting	plot	VBG
37894	21	5	the	the	DT
37894	21	6	apparent	apparent	JJ
37894	21	7	paths	path	NNS
37894	21	8	of	of	IN
37894	21	9	flight	flight	NN
37894	21	10	395	395	CD
37894	21	11	16	16	CD
37894	21	12	.	.	.
37894	22	1	Standard	standard	JJ
37894	22	2	sectors	sector	NNS
37894	22	3	for	for	IN
37894	22	4	designating	designate	VBG
37894	22	5	flight	flight	NN
37894	22	6	trends	trend	NNS
37894	22	7	398	398	CD
37894	22	8	17	17	CD
37894	22	9	.	.	.
37894	23	1	The	the	DT
37894	23	2	meaning	meaning	NN
37894	23	3	of	of	IN
37894	23	4	symbols	symbol	NNS
37894	23	5	used	use	VBN
37894	23	6	in	in	IN
37894	23	7	the	the	DT
37894	23	8	direction	direction	NN
37894	23	9	formula	formula	NN
37894	23	10	399	399	CD
37894	23	11	18	18	CD
37894	23	12	.	.	.
37894	24	1	Form	form	NN
37894	24	2	used	use	VBN
37894	24	3	to	to	TO
37894	24	4	compute	compute	VB
37894	24	5	zenith	zenith	NNP
37894	24	6	distance	distance	NN
37894	24	7	and	and	CC
37894	24	8	azimuth	azimuth	NN
37894	24	9	of	of	IN
37894	24	10	the	the	DT
37894	24	11	moon	moon	NN
37894	24	12	400	400	CD
37894	24	13	19	19	CD
37894	24	14	.	.	.
37894	25	1	Plotting	plot	VBG
37894	25	2	sector	sector	NN
37894	25	3	boundaries	boundary	NNS
37894	25	4	on	on	IN
37894	25	5	diagrammatic	diagrammatic	JJ
37894	25	6	plots	plot	NNS
37894	25	7	402	402	CD
37894	25	8	20	20	CD
37894	25	9	.	.	.
37894	26	1	Form	form	VB
37894	26	2	to	to	TO
37894	26	3	compute	compute	VB
37894	26	4	sector	sector	NN
37894	26	5	densities	density	NNS
37894	26	6	403	403	CD
37894	26	7	21	21	CD
37894	26	8	.	.	.
37894	27	1	Determination	determination	NN
37894	27	2	of	of	IN
37894	27	3	the	the	DT
37894	27	4	angle	angle	NN
37894	27	5	[	[	-LRB-
37894	27	6	alpha	alpha	NN
37894	27	7	]	]	-RRB-
37894	27	8	404	404	CD
37894	27	9	22	22	CD
37894	27	10	.	.	.
37894	28	1	Facsimile	facsimile	NN
37894	28	2	of	of	IN
37894	28	3	form	form	NN
37894	28	4	summarizing	summarizing	NN
37894	28	5	sector	sector	NN
37894	28	6	densities	densitie	VBZ
37894	28	7	405	405	CD
37894	28	8	23	23	CD
37894	28	9	.	.	.
37894	29	1	Determination	determination	NN
37894	29	2	of	of	IN
37894	29	3	net	net	JJ
37894	29	4	trend	trend	NN
37894	29	5	density	density	NN
37894	29	6	406	406	CD
37894	29	7	24	24	CD
37894	29	8	.	.	.
37894	30	1	Nightly	nightly	JJ
37894	30	2	station	station	NN
37894	30	3	density	density	NN
37894	30	4	curve	curve	NN
37894	30	5	at	at	IN
37894	30	6	Progreso	Progreso	NNP
37894	30	7	,	,	,
37894	30	8	Yucatán	Yucatán	NNP
37894	30	9	407	407	CD
37894	30	10	25	25	CD
37894	30	11	.	.	.
37894	31	1	Positions	position	NNS
37894	31	2	of	of	IN
37894	31	3	the	the	DT
37894	31	4	cone	cone	NN
37894	31	5	of	of	IN
37894	31	6	observation	observation	NN
37894	31	7	at	at	IN
37894	31	8	Tampico	Tampico	NNP
37894	31	9	,	,	,
37894	31	10	Tamps	tamp	NNS
37894	31	11	411	411	CD
37894	31	12	26	26	CD
37894	31	13	.	.	.
37894	32	1	Average	average	JJ
37894	32	2	hourly	hourly	JJ
37894	32	3	station	station	NN
37894	32	4	densities	density	NNS
37894	32	5	in	in	IN
37894	32	6	spring	spring	NN
37894	32	7	of	of	IN
37894	32	8	1948	1948	CD
37894	32	9	414	414	CD
37894	32	10	27	27	CD
37894	32	11	.	.	.
37894	33	1	Hourly	hourly	JJ
37894	33	2	station	station	NN
37894	33	3	densities	density	NNS
37894	33	4	plotted	plot	VBD
37894	33	5	as	as	IN
37894	33	6	a	a	DT
37894	33	7	percentage	percentage	NN
37894	33	8	of	of	IN
37894	33	9	peak	peak	NN
37894	33	10	415	415	CD
37894	33	11	28	28	CD
37894	33	12	.	.	.
37894	34	1	Incidence	incidence	NN
37894	34	2	of	of	IN
37894	34	3	maximum	maximum	JJ
37894	34	4	peak	peak	NN
37894	34	5	at	at	IN
37894	34	6	the	the	DT
37894	34	7	various	various	JJ
37894	34	8	hours	hour	NNS
37894	34	9	of	of	IN
37894	34	10	the	the	DT
37894	34	11	night	night	NN
37894	34	12	in	in	IN
37894	34	13	1948	1948	CD
37894	34	14	416	416	CD
37894	34	15	29	29	CD
37894	34	16	.	.	.
37894	35	1	Various	various	JJ
37894	35	2	types	type	NNS
37894	35	3	of	of	IN
37894	35	4	density	density	NN
37894	35	5	-	-	HYPH
37894	35	6	time	time	NN
37894	35	7	curves	curve	NNS
37894	35	8	418	418	CD
37894	35	9	30	30	CD
37894	35	10	.	.	.
37894	36	1	Density	density	NN
37894	36	2	-	-	HYPH
37894	36	3	time	time	NN
37894	36	4	curves	curve	NNS
37894	36	5	on	on	IN
37894	36	6	various	various	JJ
37894	36	7	nights	night	NNS
37894	36	8	at	at	IN
37894	36	9	Baton	Baton	NNP
37894	36	10	Rouge	Rouge	NNP
37894	36	11	422	422	CD
37894	36	12	31	31	CD
37894	36	13	.	.	.
37894	37	1	Directional	directional	JJ
37894	37	2	components	component	NNS
37894	37	3	in	in	IN
37894	37	4	the	the	DT
37894	37	5	flight	flight	NN
37894	37	6	at	at	IN
37894	37	7	Tampico	Tampico	NNP
37894	37	8	,	,	,
37894	37	9	Tamps	Tamps	NNP
37894	37	10	428	428	CD
37894	37	11	32	32	CD
37894	37	12	.	.	.
37894	38	1	Hourly	hourly	JJ
37894	38	2	station	station	NN
37894	38	3	density	density	NN
37894	38	4	curve	curve	NN
37894	38	5	at	at	IN
37894	38	6	Tampico	Tampico	NNP
37894	38	7	,	,	,
37894	38	8	Tamps	Tamps	NNP
37894	38	9	429	429	CD
37894	38	10	33	33	CD
37894	38	11	.	.	.
37894	39	1	The	the	DT
37894	39	2	nightly	nightly	JJ
37894	39	3	net	net	JJ
37894	39	4	trend	trend	NN
37894	39	5	of	of	IN
37894	39	6	migrations	migration	NNS
37894	39	7	at	at	IN
37894	39	8	three	three	CD
37894	39	9	stations	station	NNS
37894	39	10	in	in	IN
37894	39	11	1948	1948	CD
37894	39	12	431	431	CD
37894	39	13	34	34	CD
37894	39	14	.	.	.
37894	40	1	Stations	station	NNS
37894	40	2	at	at	IN
37894	40	3	which	which	WDT
37894	40	4	telescopic	telescopic	NN
37894	40	5	observations	observation	NNS
37894	40	6	were	be	VBD
37894	40	7	made	make	VBN
37894	40	8	in	in	IN
37894	40	9	1948	1948	CD
37894	40	10	437	437	CD
37894	40	11	35	35	CD
37894	40	12	.	.	.
37894	41	1	Positions	position	NNS
37894	41	2	of	of	IN
37894	41	3	the	the	DT
37894	41	4	cone	cone	NN
37894	41	5	of	of	IN
37894	41	6	observation	observation	NN
37894	41	7	at	at	IN
37894	41	8	Progreso	Progreso	NNP
37894	41	9	,	,	,
37894	41	10	Yucatán	Yucatán	NNP
37894	41	11	443	443	CD
37894	41	12	36	36	CD
37894	41	13	.	.	.
37894	42	1	Hourly	hourly	JJ
37894	42	2	station	station	NN
37894	42	3	density	density	NN
37894	42	4	curve	curve	NN
37894	42	5	at	at	IN
37894	42	6	Progreso	Progreso	NNP
37894	42	7	,	,	,
37894	42	8	Yucatán	Yucatán	NNP
37894	42	9	444	444	CD
37894	42	10	37	37	CD
37894	42	11	.	.	.
37894	43	1	Sector	sector	NN
37894	43	2	density	density	NN
37894	43	3	representation	representation	NN
37894	43	4	on	on	IN
37894	43	5	two	two	CD
37894	43	6	nights	night	NNS
37894	43	7	at	at	IN
37894	43	8	Rosedale	Rosedale	NNP
37894	43	9	,	,	,
37894	43	10	Miss.	Mississippi	NNP
37894	44	1	451	451	CD
37894	44	2	38	38	CD
37894	44	3	.	.	.
37894	45	1	Over	over	IN
37894	45	2	-	-	HYPH
37894	45	3	all	all	DT
37894	45	4	sector	sector	NN
37894	45	5	vectors	vector	NNS
37894	45	6	at	at	IN
37894	45	7	major	major	JJ
37894	45	8	stations	station	NNS
37894	45	9	in	in	IN
37894	45	10	spring	spring	NN
37894	45	11	of	of	IN
37894	45	12	1948	1948	CD
37894	45	13	455	455	CD
37894	45	14	39	39	CD
37894	45	15	.	.	.
37894	46	1	Over	over	IN
37894	46	2	-	-	HYPH
37894	46	3	all	all	DT
37894	46	4	net	net	JJ
37894	46	5	trend	trend	NN
37894	46	6	of	of	IN
37894	46	7	flight	flight	NN
37894	46	8	directions	direction	NNS
37894	46	9	shown	show	VBN
37894	46	10	in	in	IN
37894	46	11	Figure	Figure	NNP
37894	46	12	38	38	CD
37894	46	13	456	456	CD
37894	46	14	40	40	CD
37894	46	15	.	.	.
37894	47	1	Comparison	comparison	NN
37894	47	2	of	of	IN
37894	47	3	flight	flight	NN
37894	47	4	trends	trend	NNS
37894	47	5	and	and	CC
37894	47	6	surface	surface	NN
37894	47	7	weather	weather	NN
37894	47	8	conditions	condition	NNS
37894	47	9	on	on	IN
37894	47	10	April	April	NNP
37894	47	11	22	22	CD
37894	47	12	-	-	SYM
37894	47	13	23	23	CD
37894	47	14	,	,	,
37894	47	15	1948	1948	CD
37894	47	16	460	460	CD
37894	47	17	41	41	CD
37894	47	18	.	.	.
37894	48	1	Winds	wind	NNS
37894	48	2	aloft	aloft	RB
37894	48	3	at	at	IN
37894	48	4	10:00	10:00	CD
37894	48	5	P.	P.	NNP
37894	48	6	M.	M.	NNP
37894	48	7	on	on	IN
37894	48	8	April	April	NNP
37894	48	9	22	22	CD
37894	48	10	(	(	-LRB-
37894	48	11	CST	CST	NNP
37894	48	12	)	)	-RRB-
37894	48	13	461	461	CD
37894	48	14	42	42	CD
37894	48	15	.	.	.
37894	49	1	Comparison	comparison	NN
37894	49	2	of	of	IN
37894	49	3	flight	flight	NN
37894	49	4	trends	trend	NNS
37894	49	5	and	and	CC
37894	49	6	surface	surface	NN
37894	49	7	weather	weather	NN
37894	49	8	conditions	condition	NNS
37894	49	9	on	on	IN
37894	49	10	April	April	NNP
37894	49	11	23	23	CD
37894	49	12	-	-	SYM
37894	49	13	24	24	CD
37894	49	14	,	,	,
37894	49	15	1948	1948	CD
37894	49	16	462	462	CD
37894	49	17	43	43	CD
37894	49	18	.	.	.
37894	50	1	Winds	wind	NNS
37894	50	2	aloft	aloft	RB
37894	50	3	at	at	IN
37894	50	4	10:00	10:00	CD
37894	50	5	P.	P.	NNP
37894	50	6	M.	M.	NNP
37894	50	7	on	on	IN
37894	50	8	April	April	NNP
37894	50	9	23	23	CD
37894	50	10	(	(	-LRB-
37894	50	11	CST	cst	NN
37894	50	12	)	)	-RRB-
37894	50	13	463	463	CD
37894	50	14	44	44	CD
37894	50	15	.	.	.
37894	51	1	Comparison	comparison	NN
37894	51	2	of	of	IN
37894	51	3	flight	flight	NN
37894	51	4	trends	trend	NNS
37894	51	5	and	and	CC
37894	51	6	surface	surface	NN
37894	51	7	weather	weather	NN
37894	51	8	conditions	condition	NNS
37894	51	9	on	on	IN
37894	51	10	April	April	NNP
37894	51	11	24	24	CD
37894	51	12	-	-	SYM
37894	51	13	25	25	CD
37894	51	14	,	,	,
37894	51	15	1948	1948	CD
37894	51	16	464	464	CD
37894	51	17	45	45	CD
37894	51	18	.	.	.
37894	52	1	Winds	wind	NNS
37894	52	2	aloft	aloft	RB
37894	52	3	at	at	IN
37894	52	4	10:00	10:00	CD
37894	52	5	P.	P.	NNP
37894	52	6	M.	M.	NNP
37894	52	7	on	on	IN
37894	52	8	April	April	NNP
37894	52	9	24	24	CD
37894	52	10	(	(	-LRB-
37894	52	11	CST	CST	NNP
37894	52	12	)	)	-RRB-
37894	52	13	465	465	CD
37894	52	14	46	46	CD
37894	52	15	.	.	.
37894	53	1	Comparison	comparison	NN
37894	53	2	of	of	IN
37894	53	3	flight	flight	NN
37894	53	4	trends	trend	NNS
37894	53	5	and	and	CC
37894	53	6	surface	surface	NN
37894	53	7	weather	weather	NN
37894	53	8	conditions	condition	NNS
37894	53	9	on	on	IN
37894	53	10	May	May	NNP
37894	53	11	21	21	CD
37894	53	12	-	-	SYM
37894	53	13	22	22	CD
37894	53	14	,	,	,
37894	53	15	1948	1948	CD
37894	53	16	466	466	CD
37894	53	17	47	47	CD
37894	53	18	.	.	.
37894	54	1	Winds	wind	NNS
37894	54	2	aloft	aloft	RB
37894	54	3	at	at	IN
37894	54	4	10:00	10:00	CD
37894	54	5	P.	P.	NNP
37894	54	6	M.	M.	NNP
37894	54	7	on	on	IN
37894	54	8	May	May	NNP
37894	54	9	21	21	CD
37894	54	10	(	(	-LRB-
37894	54	11	CST	cst	NN
37894	54	12	)	)	-RRB-
37894	54	13	467	467	CD
37894	54	14	INTRODUCTION	introduction	NN
37894	54	15	The	the	DT
37894	54	16	nocturnal	nocturnal	JJ
37894	54	17	migration	migration	NN
37894	54	18	of	of	IN
37894	54	19	birds	bird	NNS
37894	54	20	is	be	VBZ
37894	54	21	a	a	DT
37894	54	22	phenomenon	phenomenon	NN
37894	54	23	that	that	WDT
37894	54	24	long	long	RB
37894	54	25	has	have	VBZ
37894	54	26	intrigued	intrigue	VBN
37894	54	27	zoologists	zoologist	NNS
37894	54	28	the	the	DT
37894	54	29	world	world	NN
37894	54	30	over	over	RP
37894	54	31	.	.	.
37894	55	1	Yet	yet	RB
37894	55	2	,	,	,
37894	55	3	despite	despite	IN
37894	55	4	this	this	DT
37894	55	5	universal	universal	JJ
37894	55	6	interest	interest	NN
37894	55	7	,	,	,
37894	55	8	most	most	JJS
37894	55	9	of	of	IN
37894	55	10	the	the	DT
37894	55	11	fundamental	fundamental	JJ
37894	55	12	aspects	aspect	NNS
37894	55	13	of	of	IN
37894	55	14	the	the	DT
37894	55	15	problem	problem	NN
37894	55	16	remain	remain	VBP
37894	55	17	shrouded	shrouded	JJ
37894	55	18	in	in	IN
37894	55	19	uncertainty	uncertainty	NN
37894	55	20	and	and	CC
37894	55	21	conjecture	conjecture	NN
37894	55	22	.	.	.
37894	56	1	Bird	bird	NN
37894	56	2	migration	migration	NN
37894	56	3	for	for	IN
37894	56	4	the	the	DT
37894	56	5	most	most	JJS
37894	56	6	part	part	NN
37894	56	7	,	,	,
37894	56	8	whether	whether	IN
37894	56	9	it	-PRON-	PRP
37894	56	10	be	be	VB
37894	56	11	by	by	IN
37894	56	12	day	day	NN
37894	56	13	or	or	CC
37894	56	14	by	by	IN
37894	56	15	night	night	NN
37894	56	16	,	,	,
37894	56	17	is	be	VBZ
37894	56	18	an	an	DT
37894	56	19	unseen	unseen	JJ
37894	56	20	movement	movement	NN
37894	56	21	.	.	.
37894	57	1	That	that	DT
37894	57	2	night	night	NN
37894	57	3	migrations	migration	NNS
37894	57	4	occur	occur	VBP
37894	57	5	at	at	RB
37894	57	6	all	all	RB
37894	57	7	is	be	VBZ
37894	57	8	a	a	DT
37894	57	9	conclusion	conclusion	NN
37894	57	10	derived	derive	VBN
37894	57	11	from	from	IN
37894	57	12	evidence	evidence	NN
37894	57	13	that	that	WDT
37894	57	14	is	be	VBZ
37894	57	15	more	more	RBR
37894	57	16	often	often	RB
37894	57	17	circumstantial	circumstantial	JJ
37894	57	18	than	than	IN
37894	57	19	it	-PRON-	PRP
37894	57	20	is	be	VBZ
37894	57	21	direct	direct	JJ
37894	57	22	.	.	.
37894	58	1	During	during	IN
37894	58	2	one	one	CD
37894	58	3	day	day	NN
37894	58	4	in	in	IN
37894	58	5	the	the	DT
37894	58	6	field	field	NN
37894	58	7	we	-PRON-	PRP
37894	58	8	may	may	MD
37894	58	9	discover	discover	VB
37894	58	10	hundreds	hundred	NNS
37894	58	11	of	of	IN
37894	58	12	transients	transient	NNS
37894	58	13	,	,	,
37894	58	14	whereas	whereas	IN
37894	58	15	,	,	,
37894	58	16	on	on	IN
37894	58	17	the	the	DT
37894	58	18	succeeding	succeed	VBG
37894	58	19	day	day	NN
37894	58	20	,	,	,
37894	58	21	in	in	IN
37894	58	22	the	the	DT
37894	58	23	same	same	JJ
37894	58	24	situation	situation	NN
37894	58	25	,	,	,
37894	58	26	we	-PRON-	PRP
37894	58	27	may	may	MD
37894	58	28	find	find	VB
37894	58	29	few	few	JJ
37894	58	30	or	or	CC
37894	58	31	none	none	NN
37894	58	32	of	of	IN
37894	58	33	the	the	DT
37894	58	34	same	same	JJ
37894	58	35	species	specie	NNS
37894	58	36	present	present	JJ
37894	58	37	.	.	.
37894	59	1	On	on	IN
37894	59	2	cloudy	cloudy	JJ
37894	59	3	nights	night	NNS
37894	59	4	we	-PRON-	PRP
37894	59	5	hear	hear	VBP
37894	59	6	the	the	DT
37894	59	7	call	call	NN
37894	59	8	notes	note	NNS
37894	59	9	of	of	IN
37894	59	10	birds	bird	NNS
37894	59	11	,	,	,
37894	59	12	presumably	presumably	RB
37894	59	13	passing	pass	VBG
37894	59	14	overhead	overhead	RB
37894	59	15	in	in	IN
37894	59	16	the	the	DT
37894	59	17	seasonal	seasonal	JJ
37894	59	18	direction	direction	NN
37894	59	19	of	of	IN
37894	59	20	migration	migration	NN
37894	59	21	.	.	.
37894	60	1	And	and	CC
37894	60	2	on	on	IN
37894	60	3	stormy	stormy	JJ
37894	60	4	nights	night	NNS
37894	60	5	birds	bird	NNS
37894	60	6	strike	strike	VBP
37894	60	7	lighthouses	lighthouse	NNS
37894	60	8	,	,	,
37894	60	9	towers	tower	NNS
37894	60	10	,	,	,
37894	60	11	and	and	CC
37894	60	12	other	other	JJ
37894	60	13	tall	tall	JJ
37894	60	14	obstructions	obstruction	NNS
37894	60	15	.	.	.
37894	61	1	Facts	fact	NNS
37894	61	2	such	such	JJ
37894	61	3	as	as	IN
37894	61	4	these	these	DT
37894	61	5	are	be	VBP
37894	61	6	indisputable	indisputable	JJ
37894	61	7	evidences	evidence	NNS
37894	61	8	that	that	DT
37894	61	9	migration	migration	NN
37894	61	10	is	be	VBZ
37894	61	11	taking	take	VBG
37894	61	12	place	place	NN
37894	61	13	,	,	,
37894	61	14	but	but	CC
37894	61	15	they	-PRON-	PRP
37894	61	16	provide	provide	VBP
37894	61	17	little	little	JJ
37894	61	18	basis	basis	NN
37894	61	19	for	for	IN
37894	61	20	evaluating	evaluate	VBG
37894	61	21	the	the	DT
37894	61	22	flights	flight	NNS
37894	61	23	in	in	IN
37894	61	24	terms	term	NNS
37894	61	25	of	of	IN
37894	61	26	magnitude	magnitude	NN
37894	61	27	or	or	CC
37894	61	28	direction	direction	NN
37894	61	29	.	.	.
37894	62	1	Many	many	JJ
37894	62	2	of	of	IN
37894	62	3	the	the	DT
37894	62	4	resulting	result	VBG
37894	62	5	uncertainties	uncertainty	NNS
37894	62	6	surrounding	surround	VBG
37894	62	7	the	the	DT
37894	62	8	nocturnal	nocturnal	JJ
37894	62	9	migration	migration	NN
37894	62	10	of	of	IN
37894	62	11	birds	bird	NNS
37894	62	12	have	have	VBP
37894	62	13	a	a	DT
37894	62	14	quantitative	quantitative	JJ
37894	62	15	aspect	aspect	NN
37894	62	16	;	;	:
37894	62	17	their	-PRON-	PRP$
37894	62	18	resolution	resolution	NN
37894	62	19	hinges	hinge	NNS
37894	62	20	on	on	IN
37894	62	21	how	how	WRB
37894	62	22	many	many	JJ
37894	62	23	birds	bird	NNS
37894	62	24	do	do	VBP
37894	62	25	one	one	CD
37894	62	26	thing	thing	NN
37894	62	27	and	and	CC
37894	62	28	how	how	WRB
37894	62	29	many	many	JJ
37894	62	30	do	do	VBP
37894	62	31	another	another	DT
37894	62	32	.	.	.
37894	63	1	If	if	IN
37894	63	2	we	-PRON-	PRP
37894	63	3	knew	know	VBD
37894	63	4	,	,	,
37894	63	5	for	for	IN
37894	63	6	instance	instance	NN
37894	63	7	,	,	,
37894	63	8	how	how	WRB
37894	63	9	many	many	JJ
37894	63	10	birds	bird	NNS
37894	63	11	are	be	VBP
37894	63	12	usually	usually	RB
37894	63	13	flying	fly	VBG
37894	63	14	between	between	IN
37894	63	15	2	2	CD
37894	63	16	and	and	CC
37894	63	17	3	3	CD
37894	63	18	A.	a.	NN
37894	63	19	M.	M.	NNP
37894	63	20	and	and	CC
37894	63	21	how	how	WRB
37894	63	22	this	this	DT
37894	63	23	number	number	NN
37894	63	24	compares	compare	VBZ
37894	63	25	with	with	IN
37894	63	26	other	other	JJ
37894	63	27	one	one	CD
37894	63	28	-	-	HYPH
37894	63	29	hour	hour	NN
37894	63	30	intervals	interval	NNS
37894	63	31	in	in	IN
37894	63	32	the	the	DT
37894	63	33	night	night	NN
37894	63	34	,	,	,
37894	63	35	we	-PRON-	PRP
37894	63	36	would	would	MD
37894	63	37	be	be	VB
37894	63	38	in	in	IN
37894	63	39	a	a	DT
37894	63	40	position	position	NN
37894	63	41	to	to	TO
37894	63	42	judge	judge	VB
37894	63	43	to	to	IN
37894	63	44	what	what	WDT
37894	63	45	extent	extent	NN
37894	63	46	night	night	NN
37894	63	47	flight	flight	NN
37894	63	48	is	be	VBZ
37894	63	49	sustained	sustain	VBN
37894	63	50	from	from	IN
37894	63	51	dusk	dusk	NN
37894	63	52	to	to	IN
37894	63	53	dawn	dawn	NN
37894	63	54	.	.	.
37894	64	1	If	if	IN
37894	64	2	we	-PRON-	PRP
37894	64	3	could	could	MD
37894	64	4	measure	measure	VB
37894	64	5	the	the	DT
37894	64	6	number	number	NN
37894	64	7	of	of	IN
37894	64	8	birds	bird	NNS
37894	64	9	passing	pass	VBG
37894	64	10	selected	select	VBN
37894	64	11	points	point	NNS
37894	64	12	of	of	IN
37894	64	13	observation	observation	NN
37894	64	14	,	,	,
37894	64	15	we	-PRON-	PRP
37894	64	16	could	could	MD
37894	64	17	find	find	VB
37894	64	18	out	out	RP
37894	64	19	whether	whether	IN
37894	64	20	such	such	JJ
37894	64	21	migration	migration	NN
37894	64	22	in	in	IN
37894	64	23	general	general	JJ
37894	64	24	proceeds	proceed	NNS
37894	64	25	more	more	RBR
37894	64	26	or	or	CC
37894	64	27	less	less	RBR
37894	64	28	uniformly	uniformly	JJ
37894	64	29	on	on	IN
37894	64	30	a	a	DT
37894	64	31	broad	broad	JJ
37894	64	32	front	front	NN
37894	64	33	or	or	CC
37894	64	34	whether	whether	IN
37894	64	35	it	-PRON-	PRP
37894	64	36	follows	follow	VBZ
37894	64	37	certain	certain	JJ
37894	64	38	favored	favor	VBN
37894	64	39	channels	channel	NNS
37894	64	40	or	or	CC
37894	64	41	flyways	flyway	NNS
37894	64	42	.	.	.
37894	65	1	This	this	DT
37894	65	2	in	in	IN
37894	65	3	turn	turn	NN
37894	65	4	might	may	MD
37894	65	5	give	give	VB
37894	65	6	us	-PRON-	PRP
37894	65	7	a	a	DT
37894	65	8	clearer	clear	JJR
37894	65	9	insight	insight	NN
37894	65	10	into	into	IN
37894	65	11	the	the	DT
37894	65	12	nature	nature	NN
37894	65	13	of	of	IN
37894	65	14	the	the	DT
37894	65	15	orienting	orienting	NN
37894	65	16	mechanism	mechanism	NN
37894	65	17	and	and	CC
37894	65	18	the	the	DT
37894	65	19	extent	extent	NN
37894	65	20	to	to	TO
37894	65	21	which	which	WDT
37894	65	22	it	-PRON-	PRP
37894	65	23	depends	depend	VBZ
37894	65	24	on	on	IN
37894	65	25	visual	visual	JJ
37894	65	26	clues	clue	NNS
37894	65	27	.	.	.
37894	66	1	And	and	CC
37894	66	2	,	,	,
37894	66	3	if	if	IN
37894	66	4	we	-PRON-	PRP
37894	66	5	had	have	VBD
37894	66	6	some	some	DT
37894	66	7	valid	valid	JJ
37894	66	8	way	way	NN
37894	66	9	of	of	IN
37894	66	10	estimating	estimate	VBG
37894	66	11	the	the	DT
37894	66	12	number	number	NN
37894	66	13	of	of	IN
37894	66	14	birds	bird	NNS
37894	66	15	on	on	IN
37894	66	16	the	the	DT
37894	66	17	wing	wing	NN
37894	66	18	under	under	IN
37894	66	19	varying	vary	VBG
37894	66	20	weather	weather	NN
37894	66	21	conditions	condition	NNS
37894	66	22	,	,	,
37894	66	23	we	-PRON-	PRP
37894	66	24	might	may	MD
37894	66	25	be	be	VB
37894	66	26	able	able	JJ
37894	66	27	to	to	TO
37894	66	28	understand	understand	VB
37894	66	29	better	well	JJR
37894	66	30	the	the	DT
37894	66	31	nature	nature	NN
37894	66	32	and	and	CC
37894	66	33	development	development	NN
37894	66	34	of	of	IN
37894	66	35	migration	migration	NN
37894	66	36	waves	wave	NNS
37894	66	37	so	so	RB
37894	66	38	familiar	familiar	JJ
37894	66	39	to	to	IN
37894	66	40	field	field	NN
37894	66	41	ornithologists	ornithologist	NNS
37894	66	42	.	.	.
37894	67	1	These	these	DT
37894	67	2	are	be	VBP
37894	67	3	just	just	RB
37894	67	4	random	random	JJ
37894	67	5	examples	example	NNS
37894	67	6	suggesting	suggest	VBG
37894	67	7	some	some	DT
37894	67	8	of	of	IN
37894	67	9	the	the	DT
37894	67	10	results	result	NNS
37894	67	11	that	that	WDT
37894	67	12	may	may	MD
37894	67	13	be	be	VB
37894	67	14	achieved	achieve	VBN
37894	67	15	in	in	IN
37894	67	16	a	a	DT
37894	67	17	broad	broad	JJ
37894	67	18	field	field	NN
37894	67	19	of	of	IN
37894	67	20	inquiry	inquiry	NN
37894	67	21	that	that	WDT
37894	67	22	is	be	VBZ
37894	67	23	still	still	RB
37894	67	24	virtually	virtually	RB
37894	67	25	untouched	untouched	JJ
37894	67	26	--	--	:
37894	67	27	the	the	DT
37894	67	28	quantitative	quantitative	JJ
37894	67	29	study	study	NN
37894	67	30	of	of	IN
37894	67	31	migratory	migratory	NN
37894	67	32	flights	flight	NNS
37894	67	33	.	.	.
37894	68	1	This	this	DT
37894	68	2	paper	paper	NN
37894	68	3	is	be	VBZ
37894	68	4	a	a	DT
37894	68	5	venture	venture	NN
37894	68	6	into	into	IN
37894	68	7	that	that	DT
37894	68	8	field	field	NN
37894	68	9	.	.	.
37894	69	1	It	-PRON-	PRP
37894	69	2	seeks	seek	VBZ
37894	69	3	to	to	TO
37894	69	4	evaluate	evaluate	VB
37894	69	5	on	on	IN
37894	69	6	a	a	DT
37894	69	7	more	more	RBR
37894	69	8	factual	factual	JJ
37894	69	9	basis	basis	NN
37894	69	10	the	the	DT
37894	69	11	traditional	traditional	JJ
37894	69	12	ideas	idea	NNS
37894	69	13	regarding	regard	VBG
37894	69	14	these	these	DT
37894	69	15	and	and	CC
37894	69	16	similar	similar	JJ
37894	69	17	problems	problem	NNS
37894	69	18	,	,	,
37894	69	19	that	that	WDT
37894	69	20	have	have	VBP
37894	69	21	been	be	VBN
37894	69	22	developed	develop	VBN
37894	69	23	largely	largely	RB
37894	69	24	from	from	IN
37894	69	25	circumstantial	circumstantial	JJ
37894	69	26	criteria	criterion	NNS
37894	69	27	.	.	.
37894	70	1	It	-PRON-	PRP
37894	70	2	is	be	VBZ
37894	70	3	primarily	primarily	RB
37894	70	4	,	,	,
37894	70	5	therefore	therefore	RB
37894	70	6	,	,	,
37894	70	7	a	a	DT
37894	70	8	study	study	NN
37894	70	9	of	of	IN
37894	70	10	comparative	comparative	JJ
37894	70	11	quantities	quantity	NNS
37894	70	12	or	or	CC
37894	70	13	volumes	volume	NNS
37894	70	14	of	of	IN
37894	70	15	migration	migration	NN
37894	70	16	--	--	:
37894	70	17	or	or	CC
37894	70	18	what	what	WP
37894	70	19	may	may	MD
37894	70	20	be	be	VB
37894	70	21	conveniently	conveniently	RB
37894	70	22	called	call	VBN
37894	70	23	flight	flight	NN
37894	70	24	densities	density	NNS
37894	70	25	,	,	,
37894	70	26	if	if	IN
37894	70	27	this	this	DT
37894	70	28	term	term	NN
37894	70	29	be	be	VB
37894	70	30	understood	understand	VBN
37894	70	31	to	to	TO
37894	70	32	mean	mean	VB
37894	70	33	simply	simply	RB
37894	70	34	the	the	DT
37894	70	35	number	number	NN
37894	70	36	of	of	IN
37894	70	37	birds	bird	NNS
37894	70	38	passing	pass	VBG
37894	70	39	through	through	IN
37894	70	40	a	a	DT
37894	70	41	given	give	VBN
37894	70	42	space	space	NN
37894	70	43	in	in	IN
37894	70	44	a	a	DT
37894	70	45	given	give	VBN
37894	70	46	interval	interval	NN
37894	70	47	of	of	IN
37894	70	48	time	time	NN
37894	70	49	.	.	.
37894	71	1	In	in	IN
37894	71	2	the	the	DT
37894	71	3	present	present	JJ
37894	71	4	study	study	NN
37894	71	5	,	,	,
37894	71	6	the	the	DT
37894	71	7	basic	basic	JJ
37894	71	8	data	datum	NNS
37894	71	9	permitting	permit	VBG
37894	71	10	the	the	DT
37894	71	11	numerical	numerical	JJ
37894	71	12	expression	expression	NN
37894	71	13	of	of	IN
37894	71	14	such	such	JJ
37894	71	15	migration	migration	NN
37894	71	16	rates	rate	NNS
37894	71	17	from	from	IN
37894	71	18	many	many	JJ
37894	71	19	localities	locality	NNS
37894	71	20	under	under	IN
37894	71	21	many	many	JJ
37894	71	22	different	different	JJ
37894	71	23	sets	set	NNS
37894	71	24	of	of	IN
37894	71	25	circumstances	circumstance	NNS
37894	71	26	were	be	VBD
37894	71	27	obtained	obtain	VBN
37894	71	28	by	by	IN
37894	71	29	a	a	DT
37894	71	30	simple	simple	JJ
37894	71	31	method	method	NN
37894	71	32	.	.	.
37894	72	1	When	when	WRB
37894	72	2	a	a	DT
37894	72	3	small	small	JJ
37894	72	4	telescope	telescope	NN
37894	72	5	,	,	,
37894	72	6	mounted	mount	VBN
37894	72	7	on	on	IN
37894	72	8	a	a	DT
37894	72	9	tripod	tripod	NN
37894	72	10	,	,	,
37894	72	11	is	be	VBZ
37894	72	12	focused	focus	VBN
37894	72	13	on	on	IN
37894	72	14	the	the	DT
37894	72	15	moon	moon	NN
37894	72	16	,	,	,
37894	72	17	the	the	DT
37894	72	18	birds	bird	NNS
37894	72	19	that	that	WDT
37894	72	20	pass	pass	VBP
37894	72	21	before	before	IN
37894	72	22	the	the	DT
37894	72	23	moon	moon	NN
37894	72	24	's	's	POS
37894	72	25	disc	disc	NN
37894	72	26	may	may	MD
37894	72	27	be	be	VB
37894	72	28	seen	see	VBN
37894	72	29	and	and	CC
37894	72	30	counted	count	VBN
37894	72	31	,	,	,
37894	72	32	and	and	CC
37894	72	33	their	-PRON-	PRP$
37894	72	34	apparent	apparent	JJ
37894	72	35	pathways	pathway	NNS
37894	72	36	recorded	record	VBN
37894	72	37	in	in	IN
37894	72	38	terms	term	NNS
37894	72	39	of	of	IN
37894	72	40	coördinates	coördinate	NNS
37894	72	41	.	.	.
37894	73	1	In	in	IN
37894	73	2	bare	bare	JJ
37894	73	3	outline	outline	NN
37894	73	4	,	,	,
37894	73	5	this	this	DT
37894	73	6	approach	approach	NN
37894	73	7	to	to	IN
37894	73	8	the	the	DT
37894	73	9	problem	problem	NN
37894	73	10	is	be	VBZ
37894	73	11	by	by	IN
37894	73	12	no	no	DT
37894	73	13	means	means	NN
37894	73	14	new	new	JJ
37894	73	15	.	.	.
37894	74	1	Ornithologists	ornithologist	NNS
37894	74	2	and	and	CC
37894	74	3	astronomers	astronomer	NNS
37894	74	4	alike	alike	RB
37894	74	5	have	have	VBP
37894	74	6	recorded	record	VBN
37894	74	7	the	the	DT
37894	74	8	numbers	number	NNS
37894	74	9	of	of	IN
37894	74	10	birds	bird	NNS
37894	74	11	seen	see	VBN
37894	74	12	against	against	IN
37894	74	13	the	the	DT
37894	74	14	moon	moon	NN
37894	74	15	in	in	IN
37894	74	16	stated	state	VBN
37894	74	17	periods	period	NNS
37894	74	18	of	of	IN
37894	74	19	time	time	NN
37894	74	20	(	(	-LRB-
37894	74	21	Scott	Scott	NNP
37894	74	22	,	,	,
37894	74	23	1881a	1881a	NNS
37894	74	24	and	and	CC
37894	74	25	1881b	1881b	NNS
37894	74	26	;	;	:
37894	74	27	Chapman	Chapman	NNP
37894	74	28	,	,	,
37894	74	29	1888	1888	CD
37894	74	30	;	;	:
37894	74	31	Libby	Libby	NNP
37894	74	32	,	,	,
37894	74	33	1889	1889	CD
37894	74	34	;	;	:
37894	74	35	West	West	NNP
37894	74	36	,	,	,
37894	74	37	1896	1896	CD
37894	74	38	;	;	:
37894	74	39	Very	very	RB
37894	74	40	,	,	,
37894	74	41	1897	1897	CD
37894	74	42	;	;	:
37894	74	43	Winkenwerder	winkenwerder	NN
37894	74	44	,	,	,
37894	74	45	1902a	1902a	NNS
37894	74	46	and	and	CC
37894	74	47	1902b	1902b	NNS
37894	74	48	;	;	:
37894	74	49	Stebbins	stebbin	NNS
37894	74	50	,	,	,
37894	74	51	1906	1906	CD
37894	74	52	;	;	:
37894	74	53	Carpenter	Carpenter	NNP
37894	74	54	,	,	,
37894	74	55	1906	1906	CD
37894	74	56	)	)	-RRB-
37894	74	57	.	.	.
37894	75	1	Unfortunately	unfortunately	RB
37894	75	2	,	,	,
37894	75	3	as	as	RB
37894	75	4	interesting	interesting	JJ
37894	75	5	as	as	IN
37894	75	6	these	these	DT
37894	75	7	observations	observation	NNS
37894	75	8	are	be	VBP
37894	75	9	,	,	,
37894	75	10	they	-PRON-	PRP
37894	75	11	furnish	furnish	VBP
37894	75	12	almost	almost	RB
37894	75	13	no	no	DT
37894	75	14	basis	basis	NN
37894	75	15	for	for	IN
37894	75	16	important	important	JJ
37894	75	17	generalizations	generalization	NNS
37894	75	18	.	.	.
37894	76	1	Most	Most	JJS
37894	76	2	of	of	IN
37894	76	3	them	-PRON-	PRP
37894	76	4	lack	lack	VBP
37894	76	5	entirely	entirely	RB
37894	76	6	the	the	DT
37894	76	7	standardization	standardization	NN
37894	76	8	of	of	IN
37894	76	9	method	method	NN
37894	76	10	and	and	CC
37894	76	11	the	the	DT
37894	76	12	continuity	continuity	NN
37894	76	13	that	that	WDT
37894	76	14	would	would	MD
37894	76	15	make	make	VB
37894	76	16	meaningful	meaningful	JJ
37894	76	17	comparisons	comparison	NNS
37894	76	18	possible	possible	JJ
37894	76	19	.	.	.
37894	77	1	Of	of	IN
37894	77	2	all	all	PDT
37894	77	3	these	these	DT
37894	77	4	men	man	NNS
37894	77	5	,	,	,
37894	77	6	Winkenwerder	Winkenwerder	NNP
37894	77	7	appears	appear	VBZ
37894	77	8	to	to	TO
37894	77	9	have	have	VB
37894	77	10	been	be	VBN
37894	77	11	the	the	DT
37894	77	12	only	only	JJ
37894	77	13	one	one	CD
37894	77	14	to	to	TO
37894	77	15	follow	follow	VB
37894	77	16	up	up	RP
37894	77	17	an	an	DT
37894	77	18	initial	initial	JJ
37894	77	19	one	one	CD
37894	77	20	or	or	CC
37894	77	21	two	two	CD
37894	77	22	nights	night	NNS
37894	77	23	of	of	IN
37894	77	24	observation	observation	NN
37894	77	25	with	with	IN
37894	77	26	anything	anything	NN
37894	77	27	approaching	approach	VBG
37894	77	28	an	an	DT
37894	77	29	organized	organize	VBN
37894	77	30	program	program	NN
37894	77	31	,	,	,
37894	77	32	capable	capable	JJ
37894	77	33	of	of	IN
37894	77	34	leading	lead	VBG
37894	77	35	to	to	IN
37894	77	36	broad	broad	JJ
37894	77	37	conclusions	conclusion	NNS
37894	77	38	.	.	.
37894	78	1	And	and	CC
37894	78	2	even	even	RB
37894	78	3	he	-PRON-	PRP
37894	78	4	was	be	VBD
37894	78	5	content	content	NN
37894	78	6	merely	merely	RB
37894	78	7	to	to	TO
37894	78	8	reproduce	reproduce	VB
37894	78	9	most	most	JJS
37894	78	10	of	of	IN
37894	78	11	his	-PRON-	PRP$
37894	78	12	original	original	JJ
37894	78	13	data	datum	NNS
37894	78	14	without	without	IN
37894	78	15	correlation	correlation	NN
37894	78	16	or	or	CC
37894	78	17	comment	comment	NN
37894	78	18	and	and	CC
37894	78	19	without	without	IN
37894	78	20	making	make	VBG
37894	78	21	clear	clear	JJ
37894	78	22	whether	whether	IN
37894	78	23	he	-PRON-	PRP
37894	78	24	fully	fully	RB
37894	78	25	grasped	grasp	VBD
37894	78	26	the	the	DT
37894	78	27	technical	technical	JJ
37894	78	28	difficulties	difficulty	NNS
37894	78	29	that	that	WDT
37894	78	30	must	must	MD
37894	78	31	be	be	VB
37894	78	32	overcome	overcome	VBN
37894	78	33	in	in	IN
37894	78	34	order	order	NN
37894	78	35	to	to	TO
37894	78	36	estimate	estimate	VB
37894	78	37	the	the	DT
37894	78	38	important	important	JJ
37894	78	39	flight	flight	NN
37894	78	40	direction	direction	NN
37894	78	41	factor	factor	NN
37894	78	42	accurately	accurately	RB
37894	78	43	.	.	.
37894	79	1	The	the	DT
37894	79	2	present	present	JJ
37894	79	3	study	study	NN
37894	79	4	was	be	VBD
37894	79	5	begun	begin	VBN
37894	79	6	in	in	IN
37894	79	7	1945	1945	CD
37894	79	8	,	,	,
37894	79	9	and	and	CC
37894	79	10	early	early	JJ
37894	79	11	results	result	NNS
37894	79	12	obtained	obtain	VBN
37894	79	13	were	be	VBD
37894	79	14	used	use	VBN
37894	79	15	briefly	briefly	RB
37894	79	16	in	in	IN
37894	79	17	a	a	DT
37894	79	18	paper	paper	NN
37894	79	19	dealing	deal	VBG
37894	79	20	with	with	IN
37894	79	21	the	the	DT
37894	79	22	trans	trans	NNP
37894	79	23	-	-	JJ
37894	79	24	Gulf	Gulf	NNP
37894	79	25	migration	migration	NN
37894	79	26	of	of	IN
37894	79	27	birds	bird	NNS
37894	79	28	(	(	-LRB-
37894	79	29	Lowery	Lowery	NNP
37894	79	30	,	,	,
37894	79	31	1946	1946	CD
37894	79	32	)	)	-RRB-
37894	79	33	.	.	.
37894	80	1	Since	since	IN
37894	80	2	that	that	DT
37894	80	3	time	time	NN
37894	80	4	the	the	DT
37894	80	5	volume	volume	NN
37894	80	6	of	of	IN
37894	80	7	field	field	NN
37894	80	8	data	datum	NNS
37894	80	9	,	,	,
37894	80	10	as	as	RB
37894	80	11	well	well	RB
37894	80	12	as	as	IN
37894	80	13	the	the	DT
37894	80	14	methods	method	NNS
37894	80	15	by	by	IN
37894	80	16	which	which	WDT
37894	80	17	they	-PRON-	PRP
37894	80	18	can	can	MD
37894	80	19	be	be	VB
37894	80	20	analyzed	analyze	VBN
37894	80	21	,	,	,
37894	80	22	has	have	VBZ
37894	80	23	been	be	VBN
37894	80	24	greatly	greatly	RB
37894	80	25	expanded	expand	VBN
37894	80	26	.	.	.
37894	81	1	In	in	IN
37894	81	2	the	the	DT
37894	81	3	spring	spring	NN
37894	81	4	of	of	IN
37894	81	5	1948	1948	CD
37894	81	6	,	,	,
37894	81	7	through	through	IN
37894	81	8	the	the	DT
37894	81	9	cooperation	cooperation	NN
37894	81	10	and	and	CC
37894	81	11	collaboration	collaboration	NN
37894	81	12	of	of	IN
37894	81	13	a	a	DT
37894	81	14	large	large	JJ
37894	81	15	number	number	NN
37894	81	16	of	of	IN
37894	81	17	ornithologists	ornithologist	NNS
37894	81	18	and	and	CC
37894	81	19	astronomers	astronomer	NNS
37894	81	20	,	,	,
37894	81	21	the	the	DT
37894	81	22	work	work	NN
37894	81	23	was	be	VBD
37894	81	24	placed	place	VBN
37894	81	25	on	on	IN
37894	81	26	a	a	DT
37894	81	27	continent	continent	NN
37894	81	28	-	-	HYPH
37894	81	29	wide	wide	JJ
37894	81	30	basis	basis	NN
37894	81	31	.	.	.
37894	82	1	At	at	IN
37894	82	2	more	more	JJR
37894	82	3	than	than	IN
37894	82	4	thirty	thirty	CD
37894	82	5	stations	station	NNS
37894	82	6	(	(	-LRB-
37894	82	7	Figure	figure	NN
37894	82	8	34	34	CD
37894	82	9	,	,	,
37894	82	10	page	page	NN
37894	82	11	437	437	CD
37894	82	12	)	)	-RRB-
37894	82	13	on	on	IN
37894	82	14	the	the	DT
37894	82	15	North	north	JJ
37894	82	16	American	american	JJ
37894	82	17	continent	continent	NN
37894	82	18	,	,	,
37894	82	19	from	from	IN
37894	82	20	Yucatán	Yucatán	NNP
37894	82	21	to	to	IN
37894	82	22	Ontario	Ontario	NNP
37894	82	23	,	,	,
37894	82	24	and	and	CC
37894	82	25	from	from	IN
37894	82	26	California	California	NNP
37894	82	27	to	to	IN
37894	82	28	South	South	NNP
37894	82	29	Carolina	Carolina	NNP
37894	82	30	,	,	,
37894	82	31	observers	observer	NNS
37894	82	32	trained	train	VBD
37894	82	33	telescopes	telescope	NNS
37894	82	34	simultaneously	simultaneously	RB
37894	82	35	on	on	IN
37894	82	36	the	the	DT
37894	82	37	moon	moon	NN
37894	82	38	and	and	CC
37894	82	39	counted	count	VBD
37894	82	40	the	the	DT
37894	82	41	birds	bird	NNS
37894	82	42	they	-PRON-	PRP
37894	82	43	saw	see	VBD
37894	82	44	passing	pass	VBG
37894	82	45	before	before	IN
37894	82	46	its	-PRON-	PRP$
37894	82	47	disc	disc	NN
37894	82	48	.	.	.
37894	83	1	Most	Most	JJS
37894	83	2	of	of	IN
37894	83	3	the	the	DT
37894	83	4	stations	station	NNS
37894	83	5	were	be	VBD
37894	83	6	in	in	IN
37894	83	7	operation	operation	NN
37894	83	8	for	for	IN
37894	83	9	several	several	JJ
37894	83	10	nights	night	NNS
37894	83	11	in	in	IN
37894	83	12	the	the	DT
37894	83	13	full	full	JJ
37894	83	14	moon	moon	NN
37894	83	15	periods	period	NNS
37894	83	16	of	of	IN
37894	83	17	March	March	NNP
37894	83	18	,	,	,
37894	83	19	April	April	NNP
37894	83	20	,	,	,
37894	83	21	and	and	CC
37894	83	22	May	May	NNP
37894	83	23	,	,	,
37894	83	24	keeping	keep	VBG
37894	83	25	the	the	DT
37894	83	26	moon	moon	NN
37894	83	27	under	under	IN
37894	83	28	constant	constant	JJ
37894	83	29	watch	watch	NN
37894	83	30	from	from	IN
37894	83	31	twilight	twilight	NN
37894	83	32	to	to	IN
37894	83	33	dawn	dawn	NN
37894	83	34	when	when	WRB
37894	83	35	conditions	condition	NNS
37894	83	36	permitted	permit	VBD
37894	83	37	.	.	.
37894	84	1	They	-PRON-	PRP
37894	84	2	have	have	VBP
37894	84	3	provided	provide	VBN
37894	84	4	counts	count	NNS
37894	84	5	representing	represent	VBG
37894	84	6	more	more	JJR
37894	84	7	than	than	IN
37894	84	8	one	one	CD
37894	84	9	thousand	thousand	CD
37894	84	10	hours	hour	NNS
37894	84	11	of	of	IN
37894	84	12	observation	observation	NN
37894	84	13	,	,	,
37894	84	14	at	at	IN
37894	84	15	many	many	JJ
37894	84	16	places	place	NNS
37894	84	17	in	in	IN
37894	84	18	an	an	DT
37894	84	19	area	area	NN
37894	84	20	of	of	IN
37894	84	21	more	more	JJR
37894	84	22	than	than	IN
37894	84	23	a	a	DT
37894	84	24	million	million	CD
37894	84	25	square	square	JJ
37894	84	26	miles	mile	NNS
37894	84	27	.	.	.
37894	85	1	But	but	CC
37894	85	2	,	,	,
37894	85	3	as	as	RB
37894	85	4	impressive	impressive	JJ
37894	85	5	as	as	IN
37894	85	6	the	the	DT
37894	85	7	figures	figure	NNS
37894	85	8	on	on	IN
37894	85	9	the	the	DT
37894	85	10	record	record	NN
37894	85	11	sheets	sheet	NNS
37894	85	12	are	be	VBP
37894	85	13	,	,	,
37894	85	14	they	-PRON-	PRP
37894	85	15	,	,	,
37894	85	16	like	like	IN
37894	85	17	the	the	DT
37894	85	18	published	publish	VBN
37894	85	19	observations	observation	NNS
37894	85	20	referred	refer	VBN
37894	85	21	to	to	IN
37894	85	22	above	above	RB
37894	85	23	,	,	,
37894	85	24	have	have	VBP
37894	85	25	dubious	dubious	JJ
37894	85	26	meaning	meaning	NN
37894	85	27	as	as	IN
37894	85	28	they	-PRON-	PRP
37894	85	29	stand	stand	VBP
37894	85	30	.	.	.
37894	86	1	Were	be	VBD
37894	86	2	we	-PRON-	PRP
37894	86	3	to	to	TO
37894	86	4	compare	compare	VB
37894	86	5	them	-PRON-	PRP
37894	86	6	directly	directly	RB
37894	86	7	,	,	,
37894	86	8	station	station	NN
37894	86	9	for	for	IN
37894	86	10	station	station	NN
37894	86	11	,	,	,
37894	86	12	or	or	CC
37894	86	13	hour	hour	NN
37894	86	14	for	for	IN
37894	86	15	hour	hour	NN
37894	86	16	,	,	,
37894	86	17	we	-PRON-	PRP
37894	86	18	would	would	MD
37894	86	19	be	be	VB
37894	86	20	almost	almost	RB
37894	86	21	certain	certain	JJ
37894	86	22	to	to	TO
37894	86	23	fall	fall	VB
37894	86	24	into	into	IN
37894	86	25	serious	serious	JJ
37894	86	26	errors	error	NNS
37894	86	27	.	.	.
37894	87	1	The	the	DT
37894	87	2	reasons	reason	NNS
37894	87	3	for	for	IN
37894	87	4	this	this	DT
37894	87	5	are	be	VBP
37894	87	6	not	not	RB
37894	87	7	simple	simple	JJ
37894	87	8	,	,	,
37894	87	9	and	and	CC
37894	87	10	the	the	DT
37894	87	11	measures	measure	NNS
37894	87	12	that	that	WDT
37894	87	13	must	must	MD
37894	87	14	be	be	VB
37894	87	15	taken	take	VBN
37894	87	16	to	to	TO
37894	87	17	obtain	obtain	VB
37894	87	18	true	true	JJ
37894	87	19	comparisons	comparison	NNS
37894	87	20	are	be	VBP
37894	87	21	even	even	RB
37894	87	22	less	less	RBR
37894	87	23	so	so	RB
37894	87	24	.	.	.
37894	88	1	When	when	WRB
37894	88	2	I	-PRON-	PRP
37894	88	3	first	first	RB
37894	88	4	presented	present	VBD
37894	88	5	this	this	DT
37894	88	6	problem	problem	NN
37894	88	7	to	to	IN
37894	88	8	my	-PRON-	PRP$
37894	88	9	colleague	colleague	NN
37894	88	10	,	,	,
37894	88	11	Professor	Professor	NNP
37894	88	12	William	William	NNP
37894	88	13	A.	A.	NNP
37894	88	14	Rense	Rense	NNP
37894	88	15	,	,	,
37894	88	16	of	of	IN
37894	88	17	the	the	DT
37894	88	18	Department	Department	NNP
37894	88	19	of	of	IN
37894	88	20	Physics	Physics	NNP
37894	88	21	and	and	CC
37894	88	22	Astronomy	Astronomy	NNP
37894	88	23	at	at	IN
37894	88	24	Louisiana	Louisiana	NNP
37894	88	25	State	State	NNP
37894	88	26	University	University	NNP
37894	88	27	,	,	,
37894	88	28	I	-PRON-	PRP
37894	88	29	was	be	VBD
37894	88	30	told	tell	VBN
37894	88	31	that	that	IN
37894	88	32	mathematical	mathematical	JJ
37894	88	33	means	mean	NNS
37894	88	34	exist	exist	VBP
37894	88	35	for	for	IN
37894	88	36	reducing	reduce	VBG
37894	88	37	the	the	DT
37894	88	38	data	datum	NNS
37894	88	39	and	and	CC
37894	88	40	for	for	IN
37894	88	41	ascertaining	ascertain	VBG
37894	88	42	the	the	DT
37894	88	43	desired	desire	VBN
37894	88	44	facts	fact	NNS
37894	88	45	.	.	.
37894	89	1	Rense	Rense	NNP
37894	89	2	's	's	POS
37894	89	3	scholarly	scholarly	JJ
37894	89	4	insight	insight	NN
37894	89	5	into	into	IN
37894	89	6	the	the	DT
37894	89	7	mathematics	mathematic	NNS
37894	89	8	of	of	IN
37894	89	9	the	the	DT
37894	89	10	problem	problem	NN
37894	89	11	resulted	result	VBD
37894	89	12	in	in	IN
37894	89	13	his	-PRON-	PRP$
37894	89	14	derivation	derivation	NN
37894	89	15	of	of	IN
37894	89	16	formulae	formula	NNS
37894	89	17	that	that	WDT
37894	89	18	have	have	VBP
37894	89	19	enabled	enable	VBN
37894	89	20	me	-PRON-	PRP
37894	89	21	to	to	TO
37894	89	22	analyze	analyze	VB
37894	89	23	on	on	IN
37894	89	24	a	a	DT
37894	89	25	comparable	comparable	JJ
37894	89	26	basis	basis	NN
37894	89	27	data	datum	NNS
37894	89	28	obtained	obtain	VBN
37894	89	29	from	from	IN
37894	89	30	different	different	JJ
37894	89	31	stations	station	NNS
37894	89	32	on	on	IN
37894	89	33	the	the	DT
37894	89	34	same	same	JJ
37894	89	35	night	night	NN
37894	89	36	,	,	,
37894	89	37	and	and	CC
37894	89	38	from	from	IN
37894	89	39	the	the	DT
37894	89	40	same	same	JJ
37894	89	41	station	station	NN
37894	89	42	at	at	IN
37894	89	43	different	different	JJ
37894	89	44	hours	hour	NNS
37894	89	45	and	and	CC
37894	89	46	on	on	IN
37894	89	47	different	different	JJ
37894	89	48	nights	night	NNS
37894	89	49	.	.	.
37894	90	1	Astronomical	astronomical	JJ
37894	90	2	and	and	CC
37894	90	3	technical	technical	JJ
37894	90	4	aspects	aspect	NNS
37894	90	5	of	of	IN
37894	90	6	the	the	DT
37894	90	7	problem	problem	NN
37894	90	8	are	be	VBP
37894	90	9	covered	cover	VBN
37894	90	10	by	by	IN
37894	90	11	Rense	Rense	NNP
37894	90	12	in	in	IN
37894	90	13	his	-PRON-	PRP$
37894	90	14	paper	paper	NN
37894	90	15	(	(	-LRB-
37894	90	16	1946	1946	CD
37894	90	17	)	)	-RRB-
37894	90	18	,	,	,
37894	90	19	but	but	CC
37894	90	20	the	the	DT
37894	90	21	underlying	underlying	JJ
37894	90	22	principles	principle	NNS
37894	90	23	are	be	VBP
37894	90	24	discussed	discuss	VBN
37894	90	25	at	at	IN
37894	90	26	somewhat	somewhat	RB
37894	90	27	greater	great	JJR
37894	90	28	length	length	NN
37894	90	29	in	in	IN
37894	90	30	this	this	DT
37894	90	31	paper	paper	NN
37894	90	32	.	.	.
37894	91	1	Part	part	NN
37894	91	2	I	-PRON-	PRP
37894	91	3	of	of	IN
37894	91	4	the	the	DT
37894	91	5	present	present	JJ
37894	91	6	paper	paper	NN
37894	91	7	,	,	,
37894	91	8	dealing	deal	VBG
37894	91	9	with	with	IN
37894	91	10	the	the	DT
37894	91	11	means	mean	NNS
37894	91	12	by	by	IN
37894	91	13	which	which	WDT
37894	91	14	the	the	DT
37894	91	15	data	datum	NNS
37894	91	16	were	be	VBD
37894	91	17	obtained	obtain	VBN
37894	91	18	and	and	CC
37894	91	19	processed	process	VBN
37894	91	20	,	,	,
37894	91	21	will	will	MD
37894	91	22	explore	explore	VB
37894	91	23	the	the	DT
37894	91	24	general	general	JJ
37894	91	25	nature	nature	NN
37894	91	26	of	of	IN
37894	91	27	the	the	DT
37894	91	28	problem	problem	NN
37894	91	29	and	and	CC
37894	91	30	show	show	NN
37894	91	31	by	by	IN
37894	91	32	specific	specific	JJ
37894	91	33	example	example	NN
37894	91	34	how	how	WRB
37894	91	35	a	a	DT
37894	91	36	set	set	NN
37894	91	37	of	of	IN
37894	91	38	observations	observation	NNS
37894	91	39	is	be	VBZ
37894	91	40	prepared	prepare	VBN
37894	91	41	for	for	IN
37894	91	42	analysis	analysis	NN
37894	91	43	.	.	.
37894	92	1	Part	Part	NNP
37894	92	2	II	II	NNP
37894	92	3	will	will	MD
37894	92	4	deal	deal	VB
37894	92	5	with	with	IN
37894	92	6	the	the	DT
37894	92	7	results	result	NNS
37894	92	8	obtained	obtain	VBN
37894	92	9	and	and	CC
37894	92	10	their	-PRON-	PRP$
37894	92	11	interpretation	interpretation	NN
37894	92	12	.	.	.
37894	93	1	ACKNOWLEDGMENTS	acknowledgment	NNS
37894	93	2	In	in	IN
37894	93	3	the	the	DT
37894	93	4	pursuit	pursuit	NN
37894	93	5	of	of	IN
37894	93	6	this	this	DT
37894	93	7	research	research	NN
37894	93	8	I	-PRON-	PRP
37894	93	9	have	have	VBP
37894	93	10	received	receive	VBN
37894	93	11	a	a	DT
37894	93	12	tremendous	tremendous	JJ
37894	93	13	amount	amount	NN
37894	93	14	of	of	IN
37894	93	15	help	help	NN
37894	93	16	from	from	IN
37894	93	17	my	-PRON-	PRP$
37894	93	18	colleagues	colleague	NNS
37894	93	19	,	,	,
37894	93	20	students	student	NNS
37894	93	21	,	,	,
37894	93	22	and	and	CC
37894	93	23	other	other	JJ
37894	93	24	friends	friend	NNS
37894	93	25	.	.	.
37894	94	1	In	in	IN
37894	94	2	the	the	DT
37894	94	3	first	first	JJ
37894	94	4	place	place	NN
37894	94	5	,	,	,
37894	94	6	in	in	IN
37894	94	7	order	order	NN
37894	94	8	to	to	TO
37894	94	9	obtain	obtain	VB
37894	94	10	much	much	JJ
37894	94	11	of	of	IN
37894	94	12	the	the	DT
37894	94	13	data	datum	NNS
37894	94	14	on	on	IN
37894	94	15	which	which	WDT
37894	94	16	the	the	DT
37894	94	17	study	study	NN
37894	94	18	was	be	VBD
37894	94	19	based	base	VBN
37894	94	20	,	,	,
37894	94	21	it	-PRON-	PRP
37894	94	22	was	be	VBD
37894	94	23	necessary	necessary	JJ
37894	94	24	to	to	TO
37894	94	25	enlist	enlist	VB
37894	94	26	the	the	DT
37894	94	27	aid	aid	NN
37894	94	28	of	of	IN
37894	94	29	many	many	JJ
37894	94	30	persons	person	NNS
37894	94	31	in	in	IN
37894	94	32	various	various	JJ
37894	94	33	parts	part	NNS
37894	94	34	of	of	IN
37894	94	35	the	the	DT
37894	94	36	country	country	NN
37894	94	37	and	and	CC
37894	94	38	to	to	TO
37894	94	39	draw	draw	VB
37894	94	40	heavily	heavily	RB
37894	94	41	on	on	IN
37894	94	42	their	-PRON-	PRP$
37894	94	43	time	time	NN
37894	94	44	and	and	CC
37894	94	45	patience	patience	NN
37894	94	46	to	to	TO
37894	94	47	get	get	VB
37894	94	48	all	all	DT
37894	94	49	-	-	HYPH
37894	94	50	night	night	NN
37894	94	51	telescopic	telescopic	NN
37894	94	52	counts	count	NNS
37894	94	53	of	of	IN
37894	94	54	migrating	migrate	VBG
37894	94	55	birds	bird	NNS
37894	94	56	.	.	.
37894	95	1	Secondly	secondly	RB
37894	95	2	,	,	,
37894	95	3	the	the	DT
37894	95	4	processing	processing	NN
37894	95	5	of	of	IN
37894	95	6	the	the	DT
37894	95	7	primary	primary	JJ
37894	95	8	data	datum	NNS
37894	95	9	and	and	CC
37894	95	10	its	-PRON-	PRP$
37894	95	11	subsequent	subsequent	JJ
37894	95	12	analysis	analysis	NN
37894	95	13	demanded	demand	VBD
37894	95	14	that	that	IN
37894	95	15	I	-PRON-	PRP
37894	95	16	delve	delve	VBP
37894	95	17	into	into	IN
37894	95	18	the	the	DT
37894	95	19	fields	field	NNS
37894	95	20	of	of	IN
37894	95	21	astronomy	astronomy	NN
37894	95	22	and	and	CC
37894	95	23	mathematics	mathematic	NNS
37894	95	24	.	.	.
37894	96	1	Here	here	RB
37894	96	2	,	,	,
37894	96	3	from	from	IN
37894	96	4	the	the	DT
37894	96	5	outset	outset	NN
37894	96	6	,	,	,
37894	96	7	I	-PRON-	PRP
37894	96	8	have	have	VBP
37894	96	9	enjoyed	enjoy	VBN
37894	96	10	the	the	DT
37894	96	11	constant	constant	JJ
37894	96	12	and	and	CC
37894	96	13	untiring	untire	VBG
37894	96	14	help	help	NN
37894	96	15	of	of	IN
37894	96	16	Professor	Professor	NNP
37894	96	17	W.	W.	NNP
37894	96	18	A.	A.	NNP
37894	96	19	Rense	Rense	NNP
37894	96	20	of	of	IN
37894	96	21	the	the	DT
37894	96	22	Department	Department	NNP
37894	96	23	of	of	IN
37894	96	24	Physics	Physics	NNP
37894	96	25	and	and	CC
37894	96	26	Astronomy	Astronomy	NNP
37894	96	27	at	at	IN
37894	96	28	Louisiana	Louisiana	NNP
37894	96	29	State	State	NNP
37894	96	30	University	University	NNP
37894	96	31	.	.	.
37894	97	1	Without	without	IN
37894	97	2	his	-PRON-	PRP$
37894	97	3	collaboration	collaboration	NN
37894	97	4	,	,	,
37894	97	5	I	-PRON-	PRP
37894	97	6	would	would	MD
37894	97	7	not	not	RB
37894	97	8	have	have	VB
37894	97	9	been	be	VBN
37894	97	10	able	able	JJ
37894	97	11	to	to	TO
37894	97	12	do	do	VB
37894	97	13	this	this	DT
37894	97	14	work	work	NN
37894	97	15	,	,	,
37894	97	16	for	for	IN
37894	97	17	he	-PRON-	PRP
37894	97	18	not	not	RB
37894	97	19	only	only	RB
37894	97	20	supplied	supply	VBN
37894	97	21	formulae	formula	NNS
37894	97	22	whereby	whereby	WRB
37894	97	23	I	-PRON-	PRP
37894	97	24	was	be	VBD
37894	97	25	able	able	JJ
37894	97	26	to	to	TO
37894	97	27	make	make	VB
37894	97	28	desired	desire	VBN
37894	97	29	computations	computation	NNS
37894	97	30	,	,	,
37894	97	31	but	but	CC
37894	97	32	time	time	NN
37894	97	33	and	and	CC
37894	97	34	again	again	RB
37894	97	35	he	-PRON-	PRP
37894	97	36	maneuvered	maneuver	VBD
37894	97	37	me	-PRON-	PRP
37894	97	38	through	through	IN
37894	97	39	my	-PRON-	PRP$
37894	97	40	difficulties	difficulty	NNS
37894	97	41	in	in	IN
37894	97	42	the	the	DT
37894	97	43	mathematical	mathematical	JJ
37894	97	44	procedures	procedure	NNS
37894	97	45	.	.	.
37894	98	1	Moreover	moreover	RB
37894	98	2	,	,	,
37894	98	3	Professor	Professor	NNP
37894	98	4	Rense	Rense	NNP
37894	98	5	has	have	VBZ
37894	98	6	manifested	manifest	VBN
37894	98	7	a	a	DT
37894	98	8	great	great	JJ
37894	98	9	interest	interest	NN
37894	98	10	in	in	IN
37894	98	11	the	the	DT
37894	98	12	ornithological	ornithological	JJ
37894	98	13	aspect	aspect	NN
37894	98	14	of	of	IN
37894	98	15	the	the	DT
37894	98	16	problem	problem	NN
37894	98	17	,	,	,
37894	98	18	and	and	CC
37894	98	19	his	-PRON-	PRP$
37894	98	20	trenchant	trenchant	JJ
37894	98	21	advice	advice	NN
37894	98	22	has	have	VBZ
37894	98	23	been	be	VBN
37894	98	24	of	of	IN
37894	98	25	inestimable	inestimable	JJ
37894	98	26	value	value	NN
37894	98	27	to	to	IN
37894	98	28	me	-PRON-	PRP
37894	98	29	.	.	.
37894	99	1	No	no	DT
37894	99	2	less	less	RBR
37894	99	3	am	be	VBP
37894	99	4	I	-PRON-	PRP
37894	99	5	indebted	indebted	JJ
37894	99	6	to	to	IN
37894	99	7	my	-PRON-	PRP$
37894	99	8	associate	associate	NN
37894	99	9	,	,	,
37894	99	10	Robert	Robert	NNP
37894	99	11	J.	J.	NNP
37894	99	12	Newman	Newman	NNP
37894	99	13	,	,	,
37894	99	14	with	with	IN
37894	99	15	whom	whom	WP
37894	99	16	I	-PRON-	PRP
37894	99	17	have	have	VBP
37894	99	18	spent	spend	VBN
37894	99	19	untold	untold	JJ
37894	99	20	hours	hour	NNS
37894	99	21	discussing	discuss	VBG
37894	99	22	the	the	DT
37894	99	23	various	various	JJ
37894	99	24	aspects	aspect	NNS
37894	99	25	of	of	IN
37894	99	26	the	the	DT
37894	99	27	problem	problem	NN
37894	99	28	.	.	.
37894	100	1	Indeed	indeed	RB
37894	100	2	,	,	,
37894	100	3	most	most	JJS
37894	100	4	of	of	IN
37894	100	5	the	the	DT
37894	100	6	concepts	concept	NNS
37894	100	7	that	that	WDT
37894	100	8	have	have	VBP
37894	100	9	evolved	evolve	VBN
37894	100	10	in	in	IN
37894	100	11	the	the	DT
37894	100	12	course	course	NN
37894	100	13	of	of	IN
37894	100	14	this	this	DT
37894	100	15	study	study	NN
37894	100	16	have	have	VBP
37894	100	17	grown	grow	VBN
37894	100	18	out	out	IN
37894	100	19	of	of	IN
37894	100	20	discussions	discussion	NNS
37894	100	21	over	over	IN
37894	100	22	a	a	DT
37894	100	23	four	four	CD
37894	100	24	-	-	HYPH
37894	100	25	year	year	NN
37894	100	26	period	period	NN
37894	100	27	with	with	IN
37894	100	28	both	both	CC
37894	100	29	Rense	Rense	NNP
37894	100	30	and	and	CC
37894	100	31	Newman	Newman	NNP
37894	100	32	.	.	.
37894	101	1	Whatever	whatever	WDT
37894	101	2	merit	merit	NN
37894	101	3	this	this	DT
37894	101	4	work	work	NN
37894	101	5	may	may	MD
37894	101	6	have	have	VB
37894	101	7	may	may	MD
37894	101	8	be	be	VB
37894	101	9	attributable	attributable	JJ
37894	101	10	in	in	IN
37894	101	11	no	no	DT
37894	101	12	small	small	JJ
37894	101	13	part	part	NN
37894	101	14	to	to	IN
37894	101	15	the	the	DT
37894	101	16	help	help	NN
37894	101	17	these	these	DT
37894	101	18	two	two	CD
37894	101	19	men	man	NNS
37894	101	20	have	have	VBP
37894	101	21	given	give	VBN
37894	101	22	me	-PRON-	PRP
37894	101	23	.	.	.
37894	102	1	In	in	IN
37894	102	2	the	the	DT
37894	102	3	preparation	preparation	NN
37894	102	4	of	of	IN
37894	102	5	many	many	JJ
37894	102	6	of	of	IN
37894	102	7	the	the	DT
37894	102	8	illustrations	illustration	NNS
37894	102	9	,	,	,
37894	102	10	I	-PRON-	PRP
37894	102	11	am	be	VBP
37894	102	12	further	further	RB
37894	102	13	obligated	obligate	VBN
37894	102	14	to	to	IN
37894	102	15	Newman	Newman	NNP
37894	102	16	for	for	IN
37894	102	17	his	-PRON-	PRP$
37894	102	18	excellent	excellent	JJ
37894	102	19	creative	creative	JJ
37894	102	20	ideas	idea	NNS
37894	102	21	as	as	RB
37894	102	22	well	well	RB
37894	102	23	as	as	IN
37894	102	24	draftsmanship	draftsmanship	NN
37894	102	25	,	,	,
37894	102	26	and	and	CC
37894	102	27	to	to	IN
37894	102	28	Miss	Miss	NNP
37894	102	29	Helen	Helen	NNP
37894	102	30	Behrnes	Behrnes	NNP
37894	102	31	and	and	CC
37894	102	32	A.	A.	NNP
37894	102	33	Lowell	Lowell	NNP
37894	102	34	Wood	Wood	NNP
37894	102	35	for	for	IN
37894	102	36	their	-PRON-	PRP$
37894	102	37	assistance	assistance	NN
37894	102	38	.	.	.
37894	103	1	The	the	DT
37894	103	2	mathematical	mathematical	JJ
37894	103	3	computations	computation	NNS
37894	103	4	required	require	VBN
37894	103	5	in	in	IN
37894	103	6	this	this	DT
37894	103	7	study	study	NN
37894	103	8	have	have	VBP
37894	103	9	been	be	VBN
37894	103	10	laborious	laborious	JJ
37894	103	11	and	and	CC
37894	103	12	time	time	NN
37894	103	13	-	-	HYPH
37894	103	14	consuming	consume	VBG
37894	103	15	.	.	.
37894	104	1	It	-PRON-	PRP
37894	104	2	is	be	VBZ
37894	104	3	estimated	estimate	VBN
37894	104	4	that	that	IN
37894	104	5	more	more	JJR
37894	104	6	than	than	IN
37894	104	7	two	two	CD
37894	104	8	thousand	thousand	CD
37894	104	9	man	man	NN
37894	104	10	-	-	HYPH
37894	104	11	hours	hour	NNS
37894	104	12	have	have	VBP
37894	104	13	gone	go	VBN
37894	104	14	into	into	IN
37894	104	15	this	this	DT
37894	104	16	phase	phase	NN
37894	104	17	of	of	IN
37894	104	18	the	the	DT
37894	104	19	work	work	NN
37894	104	20	alone	alone	RB
37894	104	21	.	.	.
37894	105	1	Whereas	whereas	IN
37894	105	2	I	-PRON-	PRP
37894	105	3	have	have	VBP
37894	105	4	necessarily	necessarily	RB
37894	105	5	done	do	VBN
37894	105	6	most	most	JJS
37894	105	7	of	of	IN
37894	105	8	this	this	DT
37894	105	9	work	work	NN
37894	105	10	,	,	,
37894	105	11	I	-PRON-	PRP
37894	105	12	have	have	VBP
37894	105	13	received	receive	VBN
37894	105	14	a	a	DT
37894	105	15	tremendous	tremendous	JJ
37894	105	16	amount	amount	NN
37894	105	17	of	of	IN
37894	105	18	help	help	NN
37894	105	19	from	from	IN
37894	105	20	A.	A.	NNP
37894	105	21	Lowell	Lowell	NNP
37894	105	22	Wood	Wood	NNP
37894	105	23	.	.	.
37894	106	1	Further	further	JJ
37894	106	2	assistance	assistance	NN
37894	106	3	in	in	IN
37894	106	4	this	this	DT
37894	106	5	regard	regard	NN
37894	106	6	came	come	VBD
37894	106	7	from	from	IN
37894	106	8	Herman	Herman	NNP
37894	106	9	Fox	Fox	NNP
37894	106	10	,	,	,
37894	106	11	Donald	Donald	NNP
37894	106	12	Norwood	Norwood	NNP
37894	106	13	,	,	,
37894	106	14	and	and	CC
37894	106	15	Lewis	Lewis	NNP
37894	106	16	Kelly	Kelly	NNP
37894	106	17	.	.	.
37894	107	1	The	the	DT
37894	107	2	recording	recording	NN
37894	107	3	of	of	IN
37894	107	4	the	the	DT
37894	107	5	original	original	JJ
37894	107	6	field	field	NN
37894	107	7	data	datum	NNS
37894	107	8	in	in	IN
37894	107	9	the	the	DT
37894	107	10	spring	spring	NN
37894	107	11	of	of	IN
37894	107	12	1948	1948	CD
37894	107	13	from	from	IN
37894	107	14	the	the	DT
37894	107	15	thirty	thirty	CD
37894	107	16	-	-	HYPH
37894	107	17	odd	odd	JJ
37894	107	18	stations	station	NNS
37894	107	19	in	in	IN
37894	107	20	North	North	NNP
37894	107	21	America	America	NNP
37894	107	22	involved	involve	VBD
37894	107	23	the	the	DT
37894	107	24	participation	participation	NN
37894	107	25	of	of	IN
37894	107	26	more	more	JJR
37894	107	27	than	than	IN
37894	107	28	200	200	CD
37894	107	29	ornithologists	ornithologist	NNS
37894	107	30	and	and	CC
37894	107	31	astronomers	astronomer	NNS
37894	107	32	.	.	.
37894	108	1	This	this	DT
37894	108	2	collaboration	collaboration	NN
37894	108	3	attests	attest	VBZ
37894	108	4	to	to	IN
37894	108	5	the	the	DT
37894	108	6	splendid	splendid	JJ
37894	108	7	cooperative	cooperative	JJ
37894	108	8	spirit	spirit	NN
37894	108	9	that	that	WDT
37894	108	10	exists	exist	VBZ
37894	108	11	among	among	IN
37894	108	12	scientists	scientist	NNS
37894	108	13	.	.	.
37894	109	1	Many	many	JJ
37894	109	2	of	of	IN
37894	109	3	these	these	DT
37894	109	4	persons	person	NNS
37894	109	5	stayed	stay	VBD
37894	109	6	at	at	IN
37894	109	7	the	the	DT
37894	109	8	telescope	telescope	NN
37894	109	9	,	,	,
37894	109	10	either	either	CC
37894	109	11	as	as	IN
37894	109	12	observer	observer	NN
37894	109	13	or	or	CC
37894	109	14	as	as	IN
37894	109	15	recorder	recorder	NN
37894	109	16	,	,	,
37894	109	17	hours	hour	NNS
37894	109	18	on	on	IN
37894	109	19	end	end	NN
37894	109	20	in	in	IN
37894	109	21	order	order	NN
37894	109	22	to	to	TO
37894	109	23	get	get	VB
37894	109	24	sets	set	NNS
37894	109	25	of	of	IN
37894	109	26	data	datum	NNS
37894	109	27	extending	extend	VBG
37894	109	28	through	through	IN
37894	109	29	a	a	DT
37894	109	30	whole	whole	JJ
37894	109	31	night	night	NN
37894	109	32	.	.	.
37894	110	1	The	the	DT
37894	110	2	following	follow	VBG
37894	110	3	were	be	VBD
37894	110	4	responsible	responsible	JJ
37894	110	5	for	for	IN
37894	110	6	much	much	JJ
37894	110	7	of	of	IN
37894	110	8	the	the	DT
37894	110	9	field	field	NN
37894	110	10	data	data	NNPS
37894	110	11	herein	herein	NNP
37894	110	12	used	use	VBD
37894	110	13	:	:	:
37894	110	14	J.	J.	NNP
37894	110	15	R.	R.	NNP
37894	110	16	Andrews	Andrews	NNP
37894	110	17	,	,	,
37894	110	18	S.	S.	NNP
37894	110	19	A.	A.	NNP
37894	110	20	Arny	Arny	NNP
37894	110	21	,	,	,
37894	110	22	M.	M.	NNP
37894	110	23	Dale	Dale	NNP
37894	110	24	Arvey	Arvey	NNP
37894	110	25	,	,	,
37894	110	26	H.	H.	NNP
37894	110	27	V.	V.	NNP
37894	110	28	Autrey	Autrey	NNP
37894	110	29	,	,	,
37894	110	30	Charles	Charles	NNP
37894	110	31	C.	C.	NNP
37894	110	32	Ayres	Ayres	NNP
37894	110	33	,	,	,
37894	110	34	Mr.	Mr.	NNP
37894	110	35	and	and	CC
37894	110	36	Mrs.	Mrs.	NNP
37894	110	37	Roy	Roy	NNP
37894	110	38	Bailey	Bailey	NNP
37894	110	39	,	,	,
37894	110	40	Irwin	Irwin	NNP
37894	110	41	L.	L.	NNP
37894	110	42	Baird	Baird	NNP
37894	110	43	,	,	,
37894	110	44	Maurice	Maurice	NNP
37894	110	45	F.	F.	NNP
37894	110	46	Baker	Baker	NNP
37894	110	47	,	,	,
37894	110	48	Rollin	Rollin	NNP
37894	110	49	H.	H.	NNP
37894	110	50	Baker	Baker	NNP
37894	110	51	,	,	,
37894	110	52	Bedortha	Bedortha	NNP
37894	110	53	and	and	CC
37894	110	54	Edna	Edna	NNP
37894	110	55	Baldwin	Baldwin	NNP
37894	110	56	,	,	,
37894	110	57	Mrs.	Mrs.	NNP
37894	110	58	A.	a.	NN
37894	110	59	Marguerite	Marguerite	NNP
37894	110	60	Baumgartner	Baumgartner	NNP
37894	110	61	,	,	,
37894	110	62	T.	T.	NNP
37894	110	63	A.	a.	NN
37894	110	64	Becket	Becket	NNP
37894	110	65	,	,	,
37894	110	66	Paul	Paul	NNP
37894	110	67	Bellington	Bellington	NNP
37894	110	68	,	,	,
37894	110	69	Donald	Donald	NNP
37894	110	70	Bird	Bird	NNP
37894	110	71	,	,	,
37894	110	72	Carl	Carl	NNP
37894	110	73	Black	Black	NNP
37894	110	74	,	,	,
37894	110	75	Jr.	Jr.	NNP
37894	110	76	,	,	,
37894	110	77	Lea	Lea	NNP
37894	110	78	Black	Black	NNP
37894	110	79	,	,	,
37894	110	80	Lytle	Lytle	NNP
37894	110	81	Blankenship	Blankenship	NNP
37894	110	82	,	,	,
37894	110	83	Mr.	Mr.	NNP
37894	110	84	and	and	CC
37894	110	85	Mrs.	Mrs.	NNP
37894	110	86	J.	J.	NNP
37894	110	87	Stewart	Stewart	NNP
37894	110	88	Boswell	Boswell	NNP
37894	110	89	,	,	,
37894	110	90	Bruce	Bruce	NNP
37894	110	91	Boudreaux	Boudreaux	NNP
37894	110	92	,	,	,
37894	110	93	Frank	Frank	NNP
37894	110	94	Bray	Bray	NNP
37894	110	95	,	,	,
37894	110	96	Mr.	Mr.	NNP
37894	110	97	and	and	CC
37894	110	98	Mrs.	Mrs.	NNP
37894	110	99	Leonard	Leonard	NNP
37894	110	100	Brecher	Brecher	NNP
37894	110	101	,	,	,
37894	110	102	Homer	Homer	NNP
37894	110	103	Brewer	Brewer	NNP
37894	110	104	,	,	,
37894	110	105	Mrs.	Mrs.	NNP
37894	110	106	Harvey	Harvey	NNP
37894	110	107	Broome	Broome	NNP
37894	110	108	,	,	,
37894	110	109	Heyward	Heyward	NNP
37894	110	110	Brown	Brown	NNP
37894	110	111	,	,	,
37894	110	112	Floyd	Floyd	NNP
37894	110	113	Browning	Browning	NNP
37894	110	114	,	,	,
37894	110	115	Cyril	Cyril	NNP
37894	110	116	Broussard	Broussard	NNP
37894	110	117	,	,	,
37894	110	118	Paul	Paul	NNP
37894	110	119	Buress	Buress	NNP
37894	110	120	,	,	,
37894	110	121	Ralph	Ralph	NNP
37894	110	122	M.	M.	NNP
37894	110	123	Burress	Burress	NNP
37894	110	124	,	,	,
37894	110	125	Robert	Robert	NNP
37894	110	126	Cain	Cain	NNP
37894	110	127	,	,	,
37894	110	128	Don	Don	NNP
37894	110	129	Carlos	Carlos	NNP
37894	110	130	,	,	,
37894	110	131	Mrs.	Mrs.	NNP
37894	110	132	Reba	Reba	NNP
37894	110	133	Campbell	Campbell	NNP
37894	110	134	,	,	,
37894	110	135	Mr.	Mr.	NNP
37894	110	136	and	and	CC
37894	110	137	Mrs.	Mrs.	NNP
37894	110	138	E.	E.	NNP
37894	110	139	Burnham	Burnham	NNP
37894	110	140	Chamberlain	Chamberlain	NNP
37894	110	141	,	,	,
37894	110	142	Laura	Laura	NNP
37894	110	143	Chaney	Chaney	NNP
37894	110	144	,	,	,
37894	110	145	Van	Van	NNP
37894	110	146	B.	B.	NNP
37894	110	147	Chaney	Chaney	NNP
37894	110	148	,	,	,
37894	110	149	Jr.	Jr.	NNP
37894	110	150	,	,	,
37894	110	151	Edward	Edward	NNP
37894	110	152	Clebsch	Clebsch	NNP
37894	110	153	,	,	,
37894	110	154	Mr.	Mr.	NNP
37894	110	155	and	and	CC
37894	110	156	Mrs.	Mrs.	NNP
37894	110	157	Ben	Ben	NNP
37894	110	158	B.	B.	NNP
37894	110	159	Coffey	Coffey	NNP
37894	110	160	,	,	,
37894	110	161	William	William	NNP
37894	110	162	Cook	Cook	NNP
37894	110	163	,	,	,
37894	110	164	Dr.	Dr.	NNP
37894	110	165	Jack	Jack	NNP
37894	110	166	Craven	Craven	NNP
37894	110	167	,	,	,
37894	110	168	Hugh	Hugh	NNP
37894	110	169	C.	C.	NNP
37894	110	170	and	and	CC
37894	110	171	William	William	NNP
37894	110	172	Davis	Davis	NNP
37894	110	173	,	,	,
37894	110	174	Katherine	Katherine	NNP
37894	110	175	Davis	Davis	NNP
37894	110	176	,	,	,
37894	110	177	Richard	Richard	NNP
37894	110	178	Davis	Davis	NNP
37894	110	179	,	,	,
37894	110	180	Richard	Richard	NNP
37894	110	181	DeArment	DeArment	NNP
37894	110	182	,	,	,
37894	110	183	Robert	Robert	NNP
37894	110	184	E.	E.	NNP
37894	110	185	Delphia	Delphia	NNP
37894	110	186	,	,	,
37894	110	187	J.	J.	NNP
37894	110	188	C.	C.	NNP
37894	110	189	Dickinson	Dickinson	NNP
37894	110	190	,	,	,
37894	110	191	Mr.	Mr.	NNP
37894	110	192	and	and	CC
37894	110	193	Mrs.	Mrs.	NNP
37894	110	194	Otto	Otto	NNP
37894	110	195	Dietrich	Dietrich	NNP
37894	110	196	,	,	,
37894	110	197	John	John	NNP
37894	110	198	Dietrich	Dietrich	NNP
37894	110	199	,	,	,
37894	110	200	Clara	Clara	NNP
37894	110	201	Dixon	Dixon	NNP
37894	110	202	,	,	,
37894	110	203	Nina	Nina	NNP
37894	110	204	Driven	Driven	NNP
37894	110	205	,	,	,
37894	110	206	John	John	NNP
37894	110	207	J.	J.	NNP
37894	110	208	Duffy	Duffy	NNP
37894	110	209	,	,	,
37894	110	210	Mr.	Mr.	NNP
37894	110	211	and	and	CC
37894	110	212	Mrs.	Mrs.	NNP
37894	110	213	R.	R.	NNP
37894	110	214	J.	J.	NNP
37894	110	215	Dunbar	Dunbar	NNP
37894	110	216	,	,	,
37894	110	217	Betty	Betty	NNP
37894	110	218	Dupre	Dupre	NNP
37894	110	219	,	,	,
37894	110	220	Bernard	Bernard	NNP
37894	110	221	E.	E.	NNP
37894	110	222	Eble	Eble	NNP
37894	110	223	,	,	,
37894	110	224	Jr.	Jr.	NNP
37894	110	225	,	,	,
37894	110	226	Robert	Robert	NNP
37894	110	227	G.	G.	NNP
37894	110	228	Eble	Eble	NNP
37894	110	229	,	,	,
37894	110	230	Dr.	Dr.	NNP
37894	110	231	and	and	CC
37894	110	232	Mrs.	Mrs.	NNP
37894	110	233	William	William	NNP
37894	110	234	H.	H.	NNP
37894	110	235	Elder	Elder	NNP
37894	110	236	,	,	,
37894	110	237	C.	C.	NNP
37894	110	238	C.	C.	NNP
37894	110	239	Emory	Emory	NNP
37894	110	240	,	,	,
37894	110	241	Davis	Davis	NNP
37894	110	242	Emory	Emory	NNP
37894	110	243	,	,	,
37894	110	244	Alice	Alice	NNP
37894	110	245	H.	H.	NNP
37894	110	246	Farnsworth	Farnsworth	NNP
37894	110	247	,	,	,
37894	110	248	James	James	NNP
37894	110	249	Fielding	Fielding	NNP
37894	110	250	,	,	,
37894	110	251	William	William	NNP
37894	110	252	R.	R.	NNP
37894	110	253	Fish	Fish	NNP
37894	110	254	,	,	,
37894	110	255	Mr.	Mr.	NNP
37894	110	256	and	and	CC
37894	110	257	Mrs.	Mrs.	NNP
37894	110	258	Myron	Myron	NNP
37894	110	259	Ford	Ford	NNP
37894	110	260	,	,	,
37894	110	261	W.	W.	NNP
37894	110	262	G.	G.	NNP
37894	110	263	Fuller	Fuller	NNP
37894	110	264	,	,	,
37894	110	265	Louis	Louis	NNP
37894	110	266	Gainey	Gainey	NNP
37894	110	267	,	,	,
37894	110	268	Dr.	Dr.	NNP
37894	110	269	Mary	Mary	NNP
37894	110	270	E.	E.	NNP
37894	110	271	Gaulden	Gaulden	NNP
37894	110	272	,	,	,
37894	110	273	Mr.	Mr.	NNP
37894	110	274	and	and	CC
37894	110	275	Mrs.	Mrs.	NNP
37894	110	276	John	John	NNP
37894	110	277	J.	J.	NNP
37894	110	278	Giudice	Giudice	NNP
37894	110	279	,	,	,
37894	110	280	Lt	Lt	NNP
37894	110	281	.	.	NNP
37894	110	282	L.	L.	NNP
37894	110	283	E.	E.	NNP
37894	110	284	Goodnight	Goodnight	NNP
37894	110	285	,	,	,
37894	110	286	Earl	Earl	NNP
37894	110	287	R.	R.	NNP
37894	110	288	Greene	Greene	NNP
37894	110	289	,	,	,
37894	110	290	Max	Max	NNP
37894	110	291	Grilkey	Grilkey	NNP
37894	110	292	,	,	,
37894	110	293	W.	W.	NNP
37894	110	294	W.	W.	NNP
37894	110	295	H.	H.	NNP
37894	110	296	Gunn	Gunn	NNP
37894	110	297	,	,	,
37894	110	298	Noel	Noel	NNP
37894	110	299	Maxwell	Maxwell	NNP
37894	110	300	Hall	Hall	NNP
37894	110	301	,	,	,
37894	110	302	Jr.	Jr.	NNP
37894	110	303	,	,	,
37894	110	304	A.	A.	NNP
37894	110	305	J.	J.	NNP
37894	110	306	Hanna	Hanna	NNP
37894	110	307	,	,	,
37894	110	308	Paul	Paul	NNP
37894	110	309	Hansen	Hansen	NNP
37894	110	310	,	,	,
37894	110	311	Harold	Harold	NNP
37894	110	312	W.	W.	NNP
37894	110	313	Harry	Harry	NNP
37894	110	314	,	,	,
37894	110	315	Joseph	Joseph	NNP
37894	110	316	Healy	Healy	NNP
37894	110	317	,	,	,
37894	110	318	Dorothy	Dorothy	NNP
37894	110	319	Helmer	Helmer	NNP
37894	110	320	,	,	,
37894	110	321	Mr.	Mr.	NNP
37894	110	322	and	and	CC
37894	110	323	Mrs.	Mrs.	NNP
37894	110	324	John	John	NNP
37894	110	325	H.	H.	NNP
37894	110	326	Helmer	Helmer	NNP
37894	110	327	,	,	,
37894	110	328	Philip	Philip	NNP
37894	110	329	E.	E.	NNP
37894	110	330	Hoberecht	Hoberecht	NNP
37894	110	331	,	,	,
37894	110	332	William	William	NNP
37894	110	333	D.	D.	NNP
37894	110	334	Hogan	Hogan	NNP
37894	110	335	,	,	,
37894	110	336	Dr.	Dr.	NNP
37894	110	337	and	and	CC
37894	110	338	Mrs.	Mrs.	NNP
37894	110	339	Joseph	Joseph	NNP
37894	110	340	C.	C.	NNP
37894	110	341	Howell	Howell	NNP
37894	110	342	,	,	,
37894	110	343	E.	E.	NNP
37894	110	344	J.	J.	NNP
37894	110	345	Huggins	Huggins	NNP
37894	110	346	,	,	,
37894	110	347	Mrs.	Mrs.	NNP
37894	110	348	Walter	Walter	NNP
37894	110	349	Huxford	Huxford	NNP
37894	110	350	,	,	,
37894	110	351	Hugh	Hugh	NNP
37894	110	352	Iltis	Iltis	NNP
37894	110	353	,	,	,
37894	110	354	W.	W.	NNP
37894	110	355	S.	S.	NNP
37894	110	356	Jennings	Jennings	NNP
37894	110	357	,	,	,
37894	110	358	William	William	NNP
37894	110	359	M.	M.	NNP
37894	110	360	Johnson	Johnson	NNP
37894	110	361	,	,	,
37894	110	362	William	William	NNP
37894	110	363	Kasler	Kasler	NNP
37894	110	364	,	,	,
37894	110	365	Luther	Luther	NNP
37894	110	366	F.	F.	NNP
37894	110	367	Keeton	Keeton	NNP
37894	110	368	,	,	,
37894	110	369	Lawrence	Lawrence	NNP
37894	110	370	C.	C.	NNP
37894	110	371	Kent	Kent	NNP
37894	110	372	,	,	,
37894	110	373	W.	W.	NNP
37894	110	374	H.	H.	NNP
37894	110	375	Kiel	Kiel	NNP
37894	110	376	,	,	,
37894	110	377	L.	L.	NNP
37894	110	378	P.	P.	NNP
37894	110	379	Kindler	Kindler	NNP
37894	110	380	,	,	,
37894	110	381	Mr.	Mr.	NNP
37894	110	382	and	and	CC
37894	110	383	Mrs.	Mrs.	NNP
37894	110	384	Joseph	Joseph	NNP
37894	110	385	E.	E.	NNP
37894	110	386	King	King	NNP
37894	110	387	,	,	,
37894	110	388	Harriet	Harriet	NNP
37894	110	389	Kirby	Kirby	NNP
37894	110	390	,	,	,
37894	110	391	E.	E.	NNP
37894	110	392	J.	J.	NNP
37894	110	393	Koestner	Koestner	NNP
37894	110	394	,	,	,
37894	110	395	Roy	Roy	NNP
37894	110	396	Komarek	Komarek	NNP
37894	110	397	,	,	,
37894	110	398	Ann	Ann	NNP
37894	110	399	Knight	Knight	NNP
37894	110	400	,	,	,
37894	110	401	Mr.	Mr.	NNP
37894	110	402	and	and	CC
37894	110	403	Mrs.	Mrs.	NNP
37894	110	404	N.	N.	NNP
37894	110	405	B.	B.	NNP
37894	110	406	Langworthy	Langworthy	NNP
37894	110	407	,	,	,
37894	110	408	Mr.	Mr.	NNP
37894	110	409	and	and	CC
37894	110	410	Mrs.	Mrs.	NNP
37894	110	411	C.	C.	NNP
37894	110	412	F.	F.	NNP
37894	110	413	Lard	Lard	NNP
37894	110	414	,	,	,
37894	110	415	Prentiss	Prentiss	NNP
37894	110	416	D.	D.	NNP
37894	110	417	Lewis	Lewis	NNP
37894	110	418	,	,	,
37894	110	419	Ernest	Ernest	NNP
37894	110	420	Liner	Liner	NNP
37894	110	421	,	,	,
37894	110	422	Dr.	Dr.	NNP
37894	110	423	and	and	CC
37894	110	424	Mrs.	Mrs.	NNP
37894	110	425	R.	R.	NNP
37894	110	426	W.	W.	NNP
37894	110	427	Lockwood	Lockwood	NNP
37894	110	428	,	,	,
37894	110	429	Dr.	Dr.	NNP
37894	110	430	Harvey	Harvey	NNP
37894	110	431	B.	B.	NNP
37894	110	432	Lovell	Lovell	NNP
37894	110	433	,	,	,
37894	110	434	William	William	NNP
37894	110	435	J.	J.	NNP
37894	110	436	Lueck	Lueck	NNP
37894	110	437	,	,	,
37894	110	438	Don	Don	NNP
37894	110	439	Luethy	Luethy	NNP
37894	110	440	,	,	,
37894	110	441	James	James	NNP
37894	110	442	Major	Major	NNP
37894	110	443	,	,	,
37894	110	444	Mr.	Mr.	NNP
37894	110	445	and	and	CC
37894	110	446	Mrs.	Mrs.	NNP
37894	110	447	Russell	Russell	NNP
37894	110	448	L.	L.	NNP
37894	110	449	Mannette	Mannette	NNP
37894	110	450	,	,	,
37894	110	451	Mrs.	Mrs.	NNP
37894	110	452	John	John	NNP
37894	110	453	B.	B.	NNP
37894	110	454	Mannix	Mannix	NNP
37894	110	455	,	,	,
37894	110	456	Donald	Donald	NNP
37894	110	457	Mary	Mary	NNP
37894	110	458	,	,	,
37894	110	459	Dale	Dale	NNP
37894	110	460	E.	E.	NNP
37894	110	461	McCollum	McCollum	NNP
37894	110	462	,	,	,
37894	110	463	Stewart	Stewart	NNP
37894	110	464	McConnell	McConnell	NNP
37894	110	465	,	,	,
37894	110	466	Mr.	Mr.	NNP
37894	110	467	and	and	CC
37894	110	468	Mrs.	Mrs.	NNP
37894	110	469	M.	M.	NNP
37894	110	470	L.	L.	NNP
37894	110	471	McCroe	McCroe	NNP
37894	110	472	,	,	,
37894	110	473	Robert	Robert	NNP
37894	110	474	L.	L.	NNP
37894	110	475	McDaniel	McDaniel	NNP
37894	110	476	,	,	,
37894	110	477	Mr.	Mr.	NNP
37894	110	478	and	and	CC
37894	110	479	Mrs.	Mrs.	NNP
37894	110	480	Frank	Frank	NNP
37894	110	481	McGill	McGill	NNP
37894	110	482	,	,	,
37894	110	483	Thomas	Thomas	NNP
37894	110	484	Merimer	Merimer	NNP
37894	110	485	,	,	,
37894	110	486	Mr.	Mr.	NNP
37894	110	487	and	and	CC
37894	110	488	Mrs.	Mrs.	NNP
37894	111	1	I.	I.	NNP
37894	111	2	S.	S.	NNP
37894	111	3	H.	H.	NNP
37894	111	4	Metcalf	Metcalf	NNP
37894	111	5	,	,	,
37894	111	6	Ann	Ann	NNP
37894	111	7	Michener	Michener	NNP
37894	111	8	,	,	,
37894	111	9	John	John	NNP
37894	111	10	Michener	Michener	NNP
37894	111	11	,	,	,
37894	111	12	T.	T.	NNP
37894	111	13	H.	H.	NNP
37894	111	14	Milby	Milby	NNP
37894	111	15	,	,	,
37894	111	16	D.	D.	NNP
37894	111	17	S.	S.	NNP
37894	111	18	Miller	Miller	NNP
37894	111	19	,	,	,
37894	111	20	Burt	Burt	NNP
37894	111	21	Monroe	Monroe	NNP
37894	111	22	,	,	,
37894	111	23	Jr.	Jr.	NNP
37894	111	24	,	,	,
37894	111	25	Burt	Burt	NNP
37894	111	26	Monroe	Monroe	NNP
37894	111	27	,	,	,
37894	111	28	Sr	Sr	NNP
37894	111	29	.	.	NNP
37894	111	30	,	,	,
37894	111	31	Mrs.	Mrs.	NNP
37894	111	32	R.	R.	NNP
37894	111	33	A.	A.	NNP
37894	111	34	Monroe	Monroe	NNP
37894	111	35	,	,	,
37894	111	36	Gordon	Gordon	NNP
37894	111	37	Montague	Montague	NNP
37894	111	38	,	,	,
37894	111	39	Duryea	Duryea	NNP
37894	111	40	Morton	Morton	NNP
37894	111	41	,	,	,
37894	111	42	James	James	NNP
37894	111	43	Mosimonn	Mosimonn	NNP
37894	111	44	,	,	,
37894	111	45	Don	Don	NNP
37894	111	46	L.	L.	NNP
37894	111	47	Moyle	Moyle	NNP
37894	111	48	,	,	,
37894	111	49	Grant	Grant	NNP
37894	111	50	Murphy	Murphy	NNP
37894	111	51	,	,	,
37894	111	52	John	John	NNP
37894	111	53	T.	T.	NNP
37894	111	54	Murphy	Murphy	NNP
37894	111	55	,	,	,
37894	111	56	Mrs.	Mrs.	NNP
37894	111	57	H.	H.	NNP
37894	111	58	F.	F.	NNP
37894	111	59	Murphy	Murphy	NNP
37894	111	60	,	,	,
37894	111	61	Mrs.	Mrs.	NNP
37894	111	62	Hill	Hill	NNP
37894	111	63	Myers	Myers	NNP
37894	111	64	,	,	,
37894	111	65	Mr.	Mr.	NNP
37894	111	66	and	and	CC
37894	111	67	Mrs.	Mrs.	NNP
37894	111	68	Robert	Robert	NNP
37894	111	69	J.	J.	NNP
37894	111	70	Newman	Newman	NNP
37894	111	71	,	,	,
37894	111	72	William	William	NNP
37894	111	73	Nichols	Nichols	NNP
37894	111	74	,	,	,
37894	111	75	R.	R.	NNP
37894	111	76	A.	a.	NN
37894	111	77	Norris	Norris	NNP
37894	111	78	,	,	,
37894	111	79	Floyd	Floyd	NNP
37894	111	80	Oaks	Oaks	NNP
37894	111	81	,	,	,
37894	111	82	Eugene	Eugene	NNP
37894	111	83	P.	P.	NNP
37894	111	84	Odum	Odum	NNP
37894	111	85	,	,	,
37894	111	86	Mrs.	Mrs.	NNP
37894	111	87	E.	E.	NNP
37894	111	88	E.	E.	NNP
37894	111	89	Overton	Overton	NNP
37894	111	90	,	,	,
37894	111	91	Lennie	Lennie	NNP
37894	111	92	E.	E.	NNP
37894	111	93	Pate	Pate	NNP
37894	111	94	,	,	,
37894	111	95	Kenneth	Kenneth	NNP
37894	111	96	Patterson	Patterson	NNP
37894	111	97	,	,	,
37894	111	98	Ralph	Ralph	NNP
37894	111	99	Paxton	Paxton	NNP
37894	111	100	,	,	,
37894	111	101	Louis	Louis	NNP
37894	111	102	Peiper	Peiper	NNP
37894	111	103	,	,	,
37894	111	104	Marie	Marie	NNP
37894	111	105	Peiper	Peiper	NNP
37894	111	106	,	,	,
37894	111	107	Mr.	Mr.	NNP
37894	111	108	and	and	CC
37894	111	109	Mrs.	Mrs.	NNP
37894	111	110	Harold	Harold	NNP
37894	111	111	S.	S.	NNP
37894	111	112	Peters	Peters	NNP
37894	111	113	,	,	,
37894	111	114	Mary	Mary	NNP
37894	111	115	Peters	Peters	NNP
37894	111	116	,	,	,
37894	111	117	Mr.	Mr.	NNP
37894	111	118	and	and	CC
37894	111	119	Mrs.	Mrs.	NNP
37894	111	120	D.	D.	NNP
37894	111	121	W.	W.	NNP
37894	111	122	Pfitzer	Pfitzer	NNP
37894	111	123	,	,	,
37894	111	124	Betty	Betty	NNP
37894	111	125	Plice	Plice	NNP
37894	111	126	,	,	,
37894	111	127	Max	Max	NNP
37894	111	128	Plice	Plice	NNP
37894	111	129	,	,	,
37894	111	130	Lestar	Lestar	NNP
37894	111	131	Porter	Porter	NNP
37894	111	132	,	,	,
37894	111	133	D.	D.	NNP
37894	111	134	R.	R.	NNP
37894	111	135	Power	Power	NNP
37894	111	136	,	,	,
37894	111	137	Kenneth	Kenneth	NNP
37894	111	138	Price	Price	NNP
37894	111	139	,	,	,
37894	111	140	George	George	NNP
37894	111	141	Rabb	Rabb	NNP
37894	111	142	,	,	,
37894	111	143	Marge	Marge	NNP
37894	111	144	Reese	Reese	NNP
37894	111	145	,	,	,
37894	111	146	Wayne	Wayne	NNP
37894	111	147	L.	L.	NNP
37894	111	148	Reeve	Reeve	NNP
37894	111	149	,	,	,
37894	111	150	C.	C.	NNP
37894	111	151	L.	L.	NNP
37894	111	152	Riecke	Riecke	NNP
37894	111	153	,	,	,
37894	111	154	R.	R.	NNP
37894	111	155	D.	D.	NNP
37894	111	156	Ritchie	Ritchie	NNP
37894	111	157	,	,	,
37894	111	158	V.	V.	NNP
37894	111	159	E.	E.	NNP
37894	111	160	Robinson	Robinson	NNP
37894	111	161	,	,	,
37894	111	162	Beverly	Beverly	NNP
37894	111	163	J.	J.	NNP
37894	112	1	Rose	Rose	NNP
37894	112	2	,	,	,
37894	112	3	Mary	Mary	NNP
37894	112	4	Jane	Jane	NNP
37894	112	5	Runyon	Runyon	NNP
37894	112	6	,	,	,
37894	112	7	Roger	Roger	NNP
37894	112	8	Rusk	Rusk	NNP
37894	112	9	,	,	,
37894	112	10	Bernd	Bernd	NNP
37894	112	11	Safinsley	Safinsley	NNP
37894	112	12	,	,	,
37894	112	13	Mr.	Mr.	NNP
37894	112	14	and	and	CC
37894	112	15	Mrs.	Mrs.	NNP
37894	112	16	Glen	Glen	NNP
37894	112	17	C.	C.	NNP
37894	112	18	Sanderson	Sanderson	NNP
37894	112	19	,	,	,
37894	112	20	Lewis	Lewis	NNP
37894	112	21	L.	L.	NNP
37894	112	22	Sandidge	Sandidge	NNP
37894	112	23	,	,	,
37894	112	24	John	John	NNP
37894	112	25	Sather	Sather	NNP
37894	112	26	,	,	,
37894	112	27	J.	J.	NNP
37894	112	28	Benton	Benton	NNP
37894	112	29	Schaub	Schaub	NNP
37894	112	30	,	,	,
37894	112	31	Evelyn	Evelyn	NNP
37894	112	32	Schneider	Schneider	NNP
37894	112	33	,	,	,
37894	112	34	Henry	Henry	NNP
37894	112	35	W.	W.	NNP
37894	112	36	Setzer	Setzer	NNP
37894	112	37	,	,	,
37894	112	38	Mr.	Mr.	NNP
37894	112	39	and	and	CC
37894	112	40	Mrs.	Mrs.	NNP
37894	112	41	Walter	Walter	NNP
37894	112	42	Shackleton	Shackleton	NNP
37894	112	43	,	,	,
37894	112	44	Mr.	Mr.	NNP
37894	112	45	and	and	CC
37894	112	46	Mrs.	Mrs.	NNP
37894	112	47	Francis	Francis	NNP
37894	112	48	P.	P.	NNP
37894	112	49	Shannon	Shannon	NNP
37894	112	50	,	,	,
37894	112	51	Mr.	Mr.	NNP
37894	112	52	and	and	CC
37894	112	53	Mrs.	Mrs.	NNP
37894	112	54	Charles	Charles	NNP
37894	112	55	Shaw	Shaw	NNP
37894	112	56	,	,	,
37894	112	57	Paul	Paul	NNP
37894	112	58	H.	H.	NNP
37894	112	59	Shepard	Shepard	NNP
37894	112	60	,	,	,
37894	112	61	Jr.	Jr.	NNP
37894	112	62	,	,	,
37894	112	63	Alan	Alan	NNP
37894	112	64	C.	C.	NNP
37894	112	65	Sheppard	Sheppard	NNP
37894	112	66	,	,	,
37894	112	67	Mabel	Mabel	NNP
37894	112	68	Slack	Slack	NNP
37894	112	69	,	,	,
37894	112	70	Alice	Alice	NNP
37894	112	71	Smith	Smith	NNP
37894	112	72	,	,	,
37894	112	73	R.	R.	NNP
37894	112	74	Demett	Demett	NNP
37894	112	75	Smith	Smith	NNP
37894	112	76	,	,	,
37894	112	77	Jr.	Jr.	NNP
37894	112	78	,	,	,
37894	112	79	Nat	Nat	NNP
37894	112	80	Smith	Smith	NNP
37894	112	81	,	,	,
37894	112	82	Major	Major	NNP
37894	112	83	and	and	CC
37894	112	84	Mrs.	Mrs.	NNP
37894	112	85	Charles	Charles	NNP
37894	112	86	H.	H.	NNP
37894	112	87	Snyder	Snyder	NNP
37894	112	88	,	,	,
37894	112	89	Albert	Albert	NNP
37894	112	90	Springs	Springs	NNP
37894	112	91	,	,	,
37894	112	92	Dr.	Dr.	NNP
37894	112	93	and	and	CC
37894	112	94	Mrs.	Mrs.	NNP
37894	112	95	Fred	Fred	NNP
37894	112	96	W.	W.	NNP
37894	112	97	Stamm	Stamm	NNP
37894	112	98	,	,	,
37894	112	99	J.	J.	NNP
37894	112	100	S.	S.	NNP
37894	112	101	Steiner	Steiner	NNP
37894	112	102	,	,	,
37894	112	103	Mrs.	Mrs.	NNP
37894	112	104	Paul	Paul	NNP
37894	112	105	Stephenson	Stephenson	NNP
37894	112	106	,	,	,
37894	112	107	Herbert	Herbert	NNP
37894	112	108	Stern	Stern	NNP
37894	112	109	,	,	,
37894	112	110	Jr.	Jr.	NNP
37894	112	111	,	,	,
37894	112	112	Herbert	Herbert	NNP
37894	112	113	Stoddard	Stoddard	NNP
37894	112	114	,	,	,
37894	112	115	Mr.	Mr.	NNP
37894	112	116	and	and	CC
37894	112	117	Mrs.	Mrs.	NNP
37894	112	118	F.	F.	NNP
37894	112	119	W.	W.	NNP
37894	112	120	Stomm	Stomm	NNP
37894	112	121	,	,	,
37894	112	122	Charles	Charles	NNP
37894	112	123	Strull	Strull	NNP
37894	112	124	,	,	,
37894	112	125	Harold	Harold	NNP
37894	112	126	P.	P.	NNP
37894	112	127	Strull	Strull	NNP
37894	112	128	,	,	,
37894	112	129	Mrs.	Mrs.	NNP
37894	113	1	Fan	Fan	NNP
37894	113	2	B.	B.	NNP
37894	113	3	Tabler	Tabler	NNP
37894	113	4	,	,	,
37894	113	5	Dr.	Dr.	NNP
37894	113	6	and	and	CC
37894	113	7	Mrs.	Mrs.	NNP
37894	113	8	James	James	NNP
37894	113	9	T.	T.	NNP
37894	113	10	Tanner	Tanner	NNP
37894	113	11	,	,	,
37894	113	12	S.	S.	NNP
37894	113	13	M.	M.	NNP
37894	113	14	H.	H.	NNP
37894	113	15	Tate	Tate	NNP
37894	113	16	,	,	,
37894	113	17	David	David	NNP
37894	113	18	Taylor	Taylor	NNP
37894	113	19	,	,	,
37894	113	20	Hall	Hall	NNP
37894	113	21	Tennin	Tennin	NNP
37894	113	22	,	,	,
37894	113	23	Scott	Scott	NNP
37894	113	24	Terry	Terry	NNP
37894	113	25	,	,	,
37894	113	26	Mr.	Mr.	NNP
37894	113	27	and	and	CC
37894	113	28	Mrs.	Mrs.	NNP
37894	113	29	S.	S.	NNP
37894	113	30	Charles	Charles	NNP
37894	113	31	Thacher	Thacher	NNP
37894	113	32	,	,	,
37894	113	33	Olive	Olive	NNP
37894	113	34	Thomas	Thomas	NNP
37894	113	35	,	,	,
37894	113	36	G.	G.	NNP
37894	113	37	A.	A.	NNP
37894	113	38	Thompson	Thompson	NNP
37894	113	39	,	,	,
37894	113	40	Jr.	Jr.	NNP
37894	113	41	,	,	,
37894	113	42	Dr.	Dr.	NNP
37894	113	43	and	and	CC
37894	113	44	Mrs.	Mrs.	NNP
37894	113	45	S.	S.	NNP
37894	113	46	R.	R.	NNP
37894	113	47	Tipton	Tipton	NNP
37894	113	48	,	,	,
37894	113	49	Robert	Robert	NNP
37894	113	50	Tucker	Tucker	NNP
37894	113	51	,	,	,
37894	113	52	Tom	Tom	NNP
37894	113	53	Uzzel	Uzzel	NNP
37894	113	54	,	,	,
37894	113	55	Mr.	Mr.	NNP
37894	113	56	and	and	CC
37894	113	57	Mrs.	Mrs.	NNP
37894	113	58	M.	M.	NNP
37894	113	59	G.	G.	NNP
37894	113	60	Vaiden	Vaiden	NNP
37894	113	61	,	,	,
37894	113	62	Richard	Richard	NNP
37894	113	63	Vaught	Vaught	NNP
37894	113	64	,	,	,
37894	113	65	Edward	Edward	NNP
37894	113	66	Violante	Violante	NNP
37894	113	67	,	,	,
37894	113	68	Brother	Brother	NNP
37894	113	69	I.	I.	NNP
37894	113	70	Vincent	Vincent	NNP
37894	113	71	,	,	,
37894	113	72	Marilyn	Marilyn	NNP
37894	113	73	L.	L.	NNP
37894	113	74	Walker	Walker	NNP
37894	113	75	,	,	,
37894	113	76	Mr.	Mr.	NNP
37894	113	77	and	and	CC
37894	113	78	Mrs.	Mrs.	NNP
37894	113	79	Willis	Willis	NNP
37894	113	80	Weaver	Weaver	NNP
37894	113	81	,	,	,
37894	113	82	Mr.	Mr.	NNP
37894	113	83	and	and	CC
37894	113	84	Mrs.	Mrs.	NNP
37894	113	85	W.	W.	NNP
37894	113	86	L.	L.	NNP
37894	113	87	Webb	Webb	NNP
37894	113	88	,	,	,
37894	113	89	Margaret	Margaret	NNP
37894	113	90	M.	M.	NNP
37894	113	91	L.	L.	NNP
37894	113	92	Wehking	Wehking	NNP
37894	113	93	,	,	,
37894	113	94	W.	W.	NNP
37894	113	95	A.	A.	NNP
37894	113	96	Welshans	Welshans	NNP
37894	113	97	,	,	,
37894	113	98	Jr.	Jr.	NNP
37894	113	99	,	,	,
37894	113	100	Mrs.	Mrs.	NNP
37894	113	101	J.	J.	NNP
37894	113	102	F.	F.	NNP
37894	113	103	Wernicke	Wernicke	NNP
37894	113	104	,	,	,
37894	113	105	Francis	Francis	NNP
37894	113	106	M.	M.	NNP
37894	113	107	Weston	Weston	NNP
37894	113	108	,	,	,
37894	113	109	Miss	Miss	NNP
37894	113	110	G.	G.	NNP
37894	113	111	W.	W.	NNP
37894	113	112	Weston	Weston	NNP
37894	113	113	,	,	,
37894	113	114	Dr.	Dr.	NNP
37894	113	115	James	James	NNP
37894	113	116	W.	W.	NNP
37894	113	117	White	White	NNP
37894	113	118	,	,	,
37894	113	119	John	John	NNP
37894	113	120	A.	A.	NNP
37894	114	1	White	White	NNP
37894	114	2	,	,	,
37894	114	3	A.	a.	NN
37894	114	4	F.	F.	NNP
37894	114	5	Wicke	Wicke	NNP
37894	114	6	,	,	,
37894	114	7	Jr.	Jr.	NNP
37894	114	8	,	,	,
37894	114	9	Oren	Oren	NNP
37894	114	10	Williams	Williams	NNP
37894	114	11	,	,	,
37894	114	12	J.	J.	NNP
37894	114	13	L.	L.	NNP
37894	114	14	Wilson	Wilson	NNP
37894	114	15	III	III	NNP
37894	114	16	,	,	,
37894	114	17	W.	W.	NNP
37894	114	18	B.	B.	NNP
37894	114	19	Wilson	Wilson	NNP
37894	114	20	,	,	,
37894	114	21	Dr.	Dr.	NNP
37894	114	22	and	and	CC
37894	114	23	Mrs.	Mrs.	NNP
37894	114	24	Leonard	Leonard	NNP
37894	114	25	Wing	Wing	NNP
37894	114	26	,	,	,
37894	114	27	Sherry	Sherry	NNP
37894	114	28	Woo	Woo	NNP
37894	114	29	,	,	,
37894	114	30	Rodney	Rodney	NNP
37894	114	31	Wuthnow	Wuthnow	NNP
37894	114	32	,	,	,
37894	114	33	Grace	Grace	NNP
37894	114	34	Wyatt	Wyatt	NNP
37894	114	35	,	,	,
37894	114	36	Mr.	Mr.	NNP
37894	114	37	and	and	CC
37894	114	38	Mrs.	Mrs.	NNP
37894	114	39	Malcom	Malcom	NNP
37894	114	40	Young	Young	NNP
37894	114	41	,	,	,
37894	114	42	Mr.	Mr.	NNP
37894	114	43	and	and	CC
37894	114	44	Mrs.	Mrs.	NNP
37894	114	45	A.	A.	NNP
37894	114	46	J.	J.	NNP
37894	114	47	Zimmerman	Zimmerman	NNP
37894	114	48	.	.	.
37894	115	1	To	to	IN
37894	115	2	the	the	DT
37894	115	3	scores	score	NNS
37894	115	4	of	of	IN
37894	115	5	other	other	JJ
37894	115	6	people	people	NNS
37894	115	7	who	who	WP
37894	115	8	assisted	assist	VBD
37894	115	9	in	in	IN
37894	115	10	making	make	VBG
37894	115	11	these	these	DT
37894	115	12	observations	observation	NNS
37894	115	13	I	-PRON-	PRP
37894	115	14	extend	extend	VBP
37894	115	15	my	-PRON-	PRP$
37894	115	16	hearty	hearty	NN
37894	115	17	thanks	thank	NNS
37894	115	18	.	.	.
37894	116	1	Drs	Drs	NNP
37894	116	2	.	.	.
37894	117	1	E.	E.	NNP
37894	117	2	R.	R.	NNP
37894	117	3	Hall	Hall	NNP
37894	117	4	,	,	,
37894	117	5	Edward	Edward	NNP
37894	117	6	H.	H.	NNP
37894	117	7	Taylor	Taylor	NNP
37894	117	8	,	,	,
37894	117	9	and	and	CC
37894	117	10	H.	H.	NNP
37894	117	11	B.	B.	NNP
37894	117	12	Hungerford	Hungerford	NNP
37894	117	13	of	of	IN
37894	117	14	the	the	DT
37894	117	15	University	University	NNP
37894	117	16	of	of	IN
37894	117	17	Kansas	Kansas	NNP
37894	117	18	have	have	VBP
37894	117	19	read	read	VBN
37894	117	20	the	the	DT
37894	117	21	manuscript	manuscript	NN
37894	117	22	and	and	CC
37894	117	23	have	have	VBP
37894	117	24	made	make	VBN
37894	117	25	valuable	valuable	JJ
37894	117	26	suggestions	suggestion	NNS
37894	117	27	,	,	,
37894	117	28	as	as	IN
37894	117	29	have	have	VBP
37894	117	30	also	also	RB
37894	117	31	Dr.	Dr.	NNP
37894	117	32	W.	W.	NNP
37894	117	33	H.	H.	NNP
37894	117	34	Gates	Gates	NNP
37894	117	35	of	of	IN
37894	117	36	Louisiana	Louisiana	NNP
37894	117	37	State	State	NNP
37894	117	38	University	University	NNP
37894	117	39	and	and	CC
37894	117	40	Dr.	Dr.	NNP
37894	117	41	Donald	Donald	NNP
37894	117	42	S.	S.	NNP
37894	117	43	Farner	Farner	NNP
37894	117	44	of	of	IN
37894	117	45	the	the	DT
37894	117	46	State	State	NNP
37894	117	47	College	College	NNP
37894	117	48	of	of	IN
37894	117	49	Washington	Washington	NNP
37894	117	50	.	.	.
37894	118	1	Dr.	Dr.	NNP
37894	118	2	Farner	Farner	NNP
37894	118	3	has	have	VBZ
37894	118	4	also	also	RB
37894	118	5	been	be	VBN
37894	118	6	of	of	IN
37894	118	7	great	great	JJ
37894	118	8	help	help	NN
37894	118	9	,	,	,
37894	118	10	together	together	RB
37894	118	11	with	with	IN
37894	118	12	Drs	Drs	NNP
37894	118	13	.	.	.
37894	119	1	Ernst	Ernst	NNP
37894	119	2	Mayr	Mayr	NNP
37894	119	3	,	,	,
37894	119	4	J.	J.	NNP
37894	120	1	Van	Van	NNP
37894	120	2	Tyne	Tyne	NNP
37894	120	3	,	,	,
37894	120	4	and	and	CC
37894	120	5	Ernst	Ernst	NNP
37894	120	6	Schüz	Schüz	NNP
37894	120	7	,	,	,
37894	120	8	in	in	IN
37894	120	9	suggesting	suggest	VBG
37894	120	10	source	source	NN
37894	120	11	material	material	NN
37894	120	12	bearing	bear	VBG
37894	120	13	on	on	IN
37894	120	14	the	the	DT
37894	120	15	subject	subject	NN
37894	120	16	in	in	IN
37894	120	17	foreign	foreign	JJ
37894	120	18	literature	literature	NN
37894	120	19	.	.	.
37894	121	1	Dr.	Dr.	NNP
37894	121	2	N.	N.	NNP
37894	121	3	Wyaman	Wyaman	NNP
37894	121	4	Storer	Storer	NNP
37894	121	5	,	,	,
37894	121	6	of	of	IN
37894	121	7	the	the	DT
37894	121	8	University	University	NNP
37894	121	9	of	of	IN
37894	121	10	Kansas	Kansas	NNP
37894	121	11	,	,	,
37894	121	12	pointed	point	VBD
37894	121	13	out	out	RP
37894	121	14	a	a	DT
37894	121	15	short	short	RB
37894	121	16	-	-	HYPH
37894	121	17	cut	cut	NN
37894	121	18	in	in	IN
37894	121	19	the	the	DT
37894	121	20	method	method	NN
37894	121	21	for	for	IN
37894	121	22	determining	determine	VBG
37894	121	23	the	the	DT
37894	121	24	altitude	altitude	NN
37894	121	25	and	and	CC
37894	121	26	azimuth	azimuth	NN
37894	121	27	of	of	IN
37894	121	28	the	the	DT
37894	121	29	moon	moon	NN
37894	121	30	,	,	,
37894	121	31	which	which	WDT
37894	121	32	resulted	result	VBD
37894	121	33	in	in	IN
37894	121	34	much	much	JJ
37894	121	35	time	time	NN
37894	121	36	being	be	VBG
37894	121	37	saved	save	VBN
37894	121	38	.	.	.
37894	122	1	For	for	IN
37894	122	2	supplying	supply	VBG
37894	122	3	climatological	climatological	JJ
37894	122	4	data	datum	NNS
37894	122	5	and	and	CC
37894	122	6	for	for	IN
37894	122	7	guidance	guidance	NN
37894	122	8	in	in	IN
37894	122	9	the	the	DT
37894	122	10	interpretation	interpretation	NN
37894	122	11	thereof	thereof	RB
37894	122	12	,	,	,
37894	122	13	I	-PRON-	PRP
37894	122	14	am	be	VBP
37894	122	15	grateful	grateful	JJ
37894	122	16	to	to	IN
37894	122	17	Dr.	Dr.	NNP
37894	122	18	Richard	Richard	NNP
37894	122	19	Joel	Joel	NNP
37894	122	20	Russell	Russell	NNP
37894	122	21	,	,	,
37894	122	22	Louisiana	Louisiana	NNP
37894	122	23	State	State	NNP
37894	122	24	University	University	NNP
37894	122	25	;	;	:
37894	122	26	Commander	Commander	NNP
37894	122	27	F.	F.	NNP
37894	122	28	W.	W.	NNP
37894	122	29	Reichelderfer	Reichelderfer	NNP
37894	122	30	,	,	,
37894	122	31	Chief	Chief	NNP
37894	122	32	of	of	IN
37894	122	33	the	the	DT
37894	122	34	U.	U.	NNP
37894	122	35	S.	S.	NNP
37894	122	36	Weather	Weather	NNP
37894	122	37	Bureau	Bureau	NNP
37894	122	38	,	,	,
37894	122	39	Washington	Washington	NNP
37894	122	40	,	,	,
37894	122	41	D.	D.	NNP
37894	122	42	C.	C.	NNP
37894	122	43	;	;	:
37894	122	44	Mr.	Mr.	NNP
37894	122	45	Merrill	Merrill	NNP
37894	122	46	Bernard	Bernard	NNP
37894	122	47	,	,	,
37894	122	48	Chief	Chief	NNP
37894	122	49	of	of	IN
37894	122	50	the	the	DT
37894	122	51	Climatological	Climatological	NNP
37894	122	52	and	and	CC
37894	122	53	Hydrologic	Hydrologic	NNP
37894	122	54	Services	Services	NNPS
37894	122	55	;	;	:
37894	122	56	and	and	CC
37894	122	57	Mr.	Mr.	NNP
37894	122	58	Ralph	Ralph	NNP
37894	122	59	Sanders	Sanders	NNP
37894	122	60	,	,	,
37894	122	61	U.	U.	NNP
37894	122	62	S.	S.	NNP
37894	122	63	Weather	Weather	NNP
37894	122	64	Bureau	Bureau	NNP
37894	122	65	at	at	IN
37894	122	66	New	New	NNP
37894	122	67	Orleans	Orleans	NNP
37894	122	68	,	,	,
37894	122	69	Louisiana	Louisiana	NNP
37894	122	70	.	.	.
37894	123	1	Acknowledgment	Acknowledgment	NNP
37894	123	2	is	be	VBZ
37894	123	3	made	make	VBN
37894	123	4	to	to	IN
37894	123	5	Bausch	Bausch	NNP
37894	123	6	and	and	CC
37894	123	7	Lomb	Lomb	NNP
37894	123	8	Optical	Optical	NNP
37894	123	9	Company	Company	NNP
37894	123	10	for	for	IN
37894	123	11	the	the	DT
37894	123	12	loan	loan	NN
37894	123	13	of	of	IN
37894	123	14	six	six	CD
37894	123	15	telescopes	telescope	NNS
37894	123	16	for	for	IN
37894	123	17	use	use	NN
37894	123	18	in	in	IN
37894	123	19	this	this	DT
37894	123	20	project	project	NN
37894	123	21	.	.	.
37894	124	1	Messrs.	Messrs.	NNP
37894	124	2	G.	G.	NNP
37894	124	3	V.	V.	NNP
37894	124	4	Cutler	Cutler	NNP
37894	124	5	and	and	CC
37894	124	6	George	George	NNP
37894	124	7	Duff	Duff	NNP
37894	124	8	of	of	IN
37894	124	9	Smith	Smith	NNP
37894	124	10	and	and	CC
37894	124	11	Johnson	Johnson	NNP
37894	124	12	Steamship	Steamship	NNP
37894	124	13	Company	Company	NNP
37894	124	14	,	,	,
37894	124	15	operators	operator	NNS
37894	124	16	of	of	IN
37894	124	17	the	the	DT
37894	124	18	Yucatán	Yucatán	NNP
37894	124	19	Line	Line	NNP
37894	124	20	,	,	,
37894	124	21	are	be	VBP
37894	124	22	to	to	TO
37894	124	23	be	be	VB
37894	124	24	thanked	thank	VBN
37894	124	25	for	for	IN
37894	124	26	granting	grant	VBG
37894	124	27	me	-PRON-	PRP
37894	124	28	free	free	JJ
37894	124	29	passage	passage	NN
37894	124	30	on	on	IN
37894	124	31	the	the	DT
37894	124	32	"	"	``
37894	124	33	S.	S.	NNP
37894	124	34	S.	S.	NNP
37894	124	35	Bertha	Bertha	NNP
37894	124	36	Brøvig	Brøvig	NNP
37894	124	37	"	"	''
37894	124	38	to	to	IN
37894	124	39	Progreso	Progreso	NNP
37894	124	40	,	,	,
37894	124	41	Yucatán	Yucatán	NNP
37894	124	42	,	,	,
37894	124	43	where	where	WRB
37894	124	44	I	-PRON-	PRP
37894	124	45	made	make	VBD
37894	124	46	observations	observation	NNS
37894	124	47	in	in	IN
37894	124	48	1945	1945	CD
37894	124	49	and	and	CC
37894	124	50	1948	1948	CD
37894	124	51	.	.	.
37894	125	1	I	-PRON-	PRP
37894	125	2	am	be	VBP
37894	125	3	also	also	RB
37894	125	4	indebted	indebted	JJ
37894	125	5	to	to	IN
37894	125	6	the	the	DT
37894	125	7	Louisiana	Louisiana	NNP
37894	125	8	State	State	NNP
37894	125	9	University	University	NNP
37894	125	10	Committee	Committee	NNP
37894	125	11	on	on	IN
37894	125	12	Faulty	Faulty	NNP
37894	125	13	Research	Research	NNP
37894	125	14	for	for	IN
37894	125	15	a	a	DT
37894	125	16	grant	grant	VB
37894	125	17	-	-	HYPH
37894	125	18	in	in	IN
37894	125	19	-	-	HYPH
37894	125	20	aid	aid	NN
37894	125	21	.	.	.
37894	126	1	PART	PART	NNP
37894	126	2	I.	I.	NNP
37894	127	1	FLIGHT	flight	NN
37894	127	2	DENSITIES	density	NNS
37894	127	3	AND	and	CC
37894	127	4	THEIR	their	NN
37894	127	5	DETERMINATION	determination	NN
37894	127	6	A.	a.	NN
37894	127	7	LUNAR	LUNAR	NNP
37894	127	8	OBSERVATIONS	observations	RB
37894	127	9	OF	of	IN
37894	127	10	BIRDS	bird	NNS
37894	127	11	AND	and	CC
37894	127	12	THE	the	DT
37894	127	13	FLIGHT	flight	NN
37894	127	14	DENSITY	density	NN
37894	127	15	CONCEPT	concept	NN
37894	127	16	The	the	DT
37894	127	17	subject	subject	JJ
37894	127	18	matter	matter	NN
37894	127	19	of	of	IN
37894	127	20	this	this	DT
37894	127	21	paper	paper	NN
37894	127	22	is	be	VBZ
37894	127	23	wholly	wholly	RB
37894	127	24	ornithological	ornithological	JJ
37894	127	25	.	.	.
37894	128	1	It	-PRON-	PRP
37894	128	2	is	be	VBZ
37894	128	3	written	write	VBN
37894	128	4	for	for	IN
37894	128	5	the	the	DT
37894	128	6	zoologist	zoologist	NN
37894	128	7	interested	interested	JJ
37894	128	8	in	in	IN
37894	128	9	the	the	DT
37894	128	10	activities	activity	NNS
37894	128	11	of	of	IN
37894	128	12	birds	bird	NNS
37894	128	13	.	.	.
37894	129	1	But	but	CC
37894	129	2	its	-PRON-	PRP$
37894	129	3	bases	basis	NNS
37894	129	4	,	,	,
37894	129	5	the	the	DT
37894	129	6	principles	principle	NNS
37894	129	7	that	that	WDT
37894	129	8	make	make	VBP
37894	129	9	it	-PRON-	PRP
37894	129	10	possible	possible	JJ
37894	129	11	,	,	,
37894	129	12	lie	lie	VBP
37894	129	13	in	in	IN
37894	129	14	other	other	JJ
37894	129	15	fields	field	NNS
37894	129	16	,	,	,
37894	129	17	including	include	VBG
37894	129	18	such	such	JJ
37894	129	19	rather	rather	RB
37894	129	20	advanced	advanced	JJ
37894	129	21	branches	branch	NNS
37894	129	22	of	of	IN
37894	129	23	mathematics	mathematic	NNS
37894	129	24	as	as	IN
37894	129	25	analytical	analytical	JJ
37894	129	26	geometry	geometry	NN
37894	129	27	,	,	,
37894	129	28	spherical	spherical	JJ
37894	129	29	geometry	geometry	NN
37894	129	30	,	,	,
37894	129	31	and	and	CC
37894	129	32	differential	differential	NN
37894	129	33	calculus	calculus	NN
37894	129	34	.	.	.
37894	130	1	No	no	DT
37894	130	2	exhaustive	exhaustive	JJ
37894	130	3	exposition	exposition	NN
37894	130	4	of	of	IN
37894	130	5	the	the	DT
37894	130	6	problem	problem	NN
37894	130	7	is	be	VBZ
37894	130	8	practicable	practicable	JJ
37894	130	9	,	,	,
37894	130	10	that	that	WDT
37894	130	11	does	do	VBZ
37894	130	12	not	not	RB
37894	130	13	take	take	VB
37894	130	14	for	for	IN
37894	130	15	granted	grant	VBN
37894	130	16	some	some	DT
37894	130	17	previous	previous	JJ
37894	130	18	knowledge	knowledge	NN
37894	130	19	of	of	IN
37894	130	20	these	these	DT
37894	130	21	disciplines	discipline	NNS
37894	130	22	on	on	IN
37894	130	23	the	the	DT
37894	130	24	part	part	NN
37894	130	25	of	of	IN
37894	130	26	all	all	DT
37894	130	27	readers	reader	NNS
37894	130	28	.	.	.
37894	131	1	There	there	EX
37894	131	2	are	be	VBP
37894	131	3	,	,	,
37894	131	4	however	however	RB
37894	131	5	,	,	,
37894	131	6	several	several	JJ
37894	131	7	levels	level	NNS
37894	131	8	of	of	IN
37894	131	9	understanding	understanding	NN
37894	131	10	.	.	.
37894	132	1	It	-PRON-	PRP
37894	132	2	is	be	VBZ
37894	132	3	possible	possible	JJ
37894	132	4	to	to	TO
37894	132	5	appreciate	appreciate	VB
37894	132	6	_	_	NNP
37894	132	7	what	what	WP
37894	132	8	_	_	NNP
37894	132	9	is	be	VBZ
37894	132	10	being	be	VBG
37894	132	11	done	do	VBN
37894	132	12	without	without	IN
37894	132	13	knowing	know	VBG
37894	132	14	_	_	NNP
37894	132	15	how	how	WRB
37894	132	16	_	_	NNP
37894	132	17	to	to	TO
37894	132	18	do	do	VB
37894	132	19	it	-PRON-	PRP
37894	132	20	;	;	:
37894	132	21	and	and	CC
37894	132	22	it	-PRON-	PRP
37894	132	23	is	be	VBZ
37894	132	24	possible	possible	JJ
37894	132	25	to	to	TO
37894	132	26	learn	learn	VB
37894	132	27	how	how	WRB
37894	132	28	to	to	TO
37894	132	29	carry	carry	VB
37894	132	30	out	out	RP
37894	132	31	the	the	DT
37894	132	32	successive	successive	JJ
37894	132	33	steps	step	NNS
37894	132	34	of	of	IN
37894	132	35	a	a	DT
37894	132	36	procedure	procedure	NN
37894	132	37	without	without	IN
37894	132	38	entirely	entirely	RB
37894	132	39	comprehending	comprehend	VBG
37894	132	40	_	_	NNP
37894	132	41	why	why	WRB
37894	132	42	_	_	NNP
37894	132	43	.	.	.
37894	133	1	Some	some	DT
37894	133	2	familiarity	familiarity	NN
37894	133	3	with	with	IN
37894	133	4	the	the	DT
37894	133	5	concepts	concept	NNS
37894	133	6	underlying	underlie	VBG
37894	133	7	the	the	DT
37894	133	8	method	method	NN
37894	133	9	is	be	VBZ
37894	133	10	essential	essential	JJ
37894	133	11	to	to	IN
37894	133	12	a	a	DT
37894	133	13	full	full	JJ
37894	133	14	understanding	understanding	NN
37894	133	15	of	of	IN
37894	133	16	the	the	DT
37894	133	17	results	result	NNS
37894	133	18	achieved	achieve	VBN
37894	133	19	,	,	,
37894	133	20	and	and	CC
37894	133	21	details	detail	NNS
37894	133	22	of	of	IN
37894	133	23	procedure	procedure	NN
37894	133	24	must	must	MD
37894	133	25	be	be	VB
37894	133	26	made	make	VBN
37894	133	27	generally	generally	RB
37894	133	28	available	available	JJ
37894	133	29	if	if	IN
37894	133	30	the	the	DT
37894	133	31	full	full	JJ
37894	133	32	possibilities	possibility	NNS
37894	133	33	of	of	IN
37894	133	34	the	the	DT
37894	133	35	telescopic	telescopic	JJ
37894	133	36	approach	approach	NN
37894	133	37	are	be	VBP
37894	133	38	to	to	TO
37894	133	39	be	be	VB
37894	133	40	realized	realize	VBN
37894	133	41	.	.	.
37894	134	1	Without	without	IN
37894	134	2	going	go	VBG
37894	134	3	into	into	IN
37894	134	4	proof	proof	NN
37894	134	5	of	of	IN
37894	134	6	underlying	underlie	VBG
37894	134	7	propositions	proposition	NNS
37894	134	8	or	or	CC
37894	134	9	actual	actual	JJ
37894	134	10	derivation	derivation	NN
37894	134	11	of	of	IN
37894	134	12	formulae	formulae	NNP
37894	134	13	,	,	,
37894	134	14	I	-PRON-	PRP
37894	134	15	shall	shall	MD
37894	134	16	accordingly	accordingly	RB
37894	134	17	present	present	VB
37894	134	18	a	a	DT
37894	134	19	discussion	discussion	NN
37894	134	20	of	of	IN
37894	134	21	the	the	DT
37894	134	22	general	general	JJ
37894	134	23	nature	nature	NN
37894	134	24	of	of	IN
37894	134	25	the	the	DT
37894	134	26	problem	problem	NN
37894	134	27	,	,	,
37894	134	28	conveyed	convey	VBD
37894	134	29	as	as	RB
37894	134	30	much	much	RB
37894	134	31	as	as	IN
37894	134	32	possible	possible	JJ
37894	134	33	in	in	IN
37894	134	34	terms	term	NNS
37894	134	35	of	of	IN
37894	134	36	physical	physical	JJ
37894	134	37	visualization	visualization	NN
37894	134	38	.	.	.
37894	135	1	The	the	DT
37894	135	2	development	development	NN
37894	135	3	begins	begin	VBZ
37894	135	4	with	with	IN
37894	135	5	the	the	DT
37894	135	6	impressions	impression	NNS
37894	135	7	of	of	IN
37894	135	8	the	the	DT
37894	135	9	student	student	NN
37894	135	10	when	when	WRB
37894	135	11	he	-PRON-	PRP
37894	135	12	first	first	RB
37894	135	13	attempts	attempt	VBZ
37894	135	14	to	to	TO
37894	135	15	investigate	investigate	VB
37894	135	16	the	the	DT
37894	135	17	movements	movement	NNS
37894	135	18	of	of	IN
37894	135	19	birds	bird	NNS
37894	135	20	by	by	IN
37894	135	21	means	mean	NNS
37894	135	22	of	of	IN
37894	135	23	the	the	DT
37894	135	24	moon	moon	NN
37894	135	25	.	.	.
37894	136	1	_	_	NNP
37894	136	2	What	what	WP
37894	136	3	the	the	DT
37894	136	4	Observer	Observer	NNP
37894	136	5	Sees	Sees	NNPS
37894	136	6	_	_	NNP
37894	136	7	Watched	watch	VBD
37894	136	8	through	through	IN
37894	136	9	a	a	DT
37894	136	10	20-power	20-power	CD
37894	136	11	telescope	telescope	NN
37894	136	12	on	on	IN
37894	136	13	a	a	DT
37894	136	14	cloudless	cloudless	JJ
37894	136	15	night	night	NN
37894	136	16	,	,	,
37894	136	17	the	the	DT
37894	136	18	full	full	JJ
37894	136	19	moon	moon	NN
37894	136	20	shines	shine	VBZ
37894	136	21	like	like	IN
37894	136	22	a	a	DT
37894	136	23	giant	giant	JJ
37894	136	24	plaster	plaster	NN
37894	136	25	hemisphere	hemisphere	VBD
37894	136	26	caught	catch	VBN
37894	136	27	in	in	IN
37894	136	28	the	the	DT
37894	136	29	full	full	JJ
37894	136	30	glare	glare	NN
37894	136	31	of	of	IN
37894	136	32	a	a	DT
37894	136	33	floodlight	floodlight	NN
37894	136	34	.	.	.
37894	137	1	Inequalities	inequality	NNS
37894	137	2	of	of	IN
37894	137	3	surface	surface	NN
37894	137	4	,	,	,
37894	137	5	the	the	DT
37894	137	6	rims	rim	NNS
37894	137	7	of	of	IN
37894	137	8	its	-PRON-	PRP$
37894	137	9	craters	crater	NNS
37894	137	10	,	,	,
37894	137	11	the	the	DT
37894	137	12	tips	tip	NNS
37894	137	13	of	of	IN
37894	137	14	its	-PRON-	PRP$
37894	137	15	peaks	peak	NNS
37894	137	16	,	,	,
37894	137	17	gleam	gleam	VB
37894	137	18	with	with	IN
37894	137	19	an	an	DT
37894	137	20	almost	almost	RB
37894	137	21	incandescent	incandescent	JJ
37894	137	22	whiteness	whiteness	NN
37894	137	23	;	;	:
37894	137	24	and	and	CC
37894	137	25	even	even	RB
37894	137	26	the	the	DT
37894	137	27	darker	dark	JJR
37894	137	28	areas	area	NNS
37894	137	29	,	,	,
37894	137	30	the	the	DT
37894	137	31	so	so	RB
37894	137	32	-	-	HYPH
37894	137	33	called	call	VBN
37894	137	34	lunar	lunar	JJ
37894	137	35	seas	sea	NNS
37894	137	36	,	,	,
37894	137	37	pale	pale	JJ
37894	137	38	to	to	IN
37894	137	39	a	a	DT
37894	137	40	clear	clear	JJ
37894	137	41	,	,	,
37894	137	42	glowing	glow	VBG
37894	137	43	gray	gray	JJ
37894	137	44	.	.	.
37894	138	1	Against	against	IN
37894	138	2	this	this	DT
37894	138	3	brilliant	brilliant	JJ
37894	138	4	background	background	NN
37894	138	5	,	,	,
37894	138	6	most	most	JJS
37894	138	7	birds	bird	NNS
37894	138	8	passing	pass	VBG
37894	138	9	in	in	IN
37894	138	10	focus	focus	NN
37894	138	11	appear	appear	VBP
37894	138	12	as	as	IN
37894	138	13	coal	coal	NN
37894	138	14	-	-	HYPH
37894	138	15	black	black	JJ
37894	138	16	miniatures	miniature	NNS
37894	138	17	,	,	,
37894	138	18	only	only	RB
37894	138	19	1/10	1/10	CD
37894	138	20	to	to	TO
37894	138	21	1/30	1/30	CD
37894	138	22	the	the	DT
37894	138	23	apparent	apparent	JJ
37894	138	24	diameter	diameter	NN
37894	138	25	of	of	IN
37894	138	26	the	the	DT
37894	138	27	moon	moon	NN
37894	138	28	.	.	.
37894	139	1	Small	small	JJ
37894	139	2	as	as	IN
37894	139	3	these	these	DT
37894	139	4	silhouettes	silhouette	NNS
37894	139	5	are	be	VBP
37894	139	6	,	,	,
37894	139	7	details	detail	NNS
37894	139	8	of	of	IN
37894	139	9	form	form	NN
37894	139	10	are	be	VBP
37894	139	11	often	often	RB
37894	139	12	beautifully	beautifully	RB
37894	139	13	defined	define	VBN
37894	139	14	--	--	:
37894	139	15	the	the	DT
37894	139	16	proportions	proportion	NNS
37894	139	17	of	of	IN
37894	139	18	the	the	DT
37894	139	19	body	body	NN
37894	139	20	,	,	,
37894	139	21	the	the	DT
37894	139	22	shape	shape	NN
37894	139	23	of	of	IN
37894	139	24	the	the	DT
37894	139	25	tail	tail	NN
37894	139	26	,	,	,
37894	139	27	the	the	DT
37894	139	28	beat	beat	NN
37894	139	29	of	of	IN
37894	139	30	the	the	DT
37894	139	31	wings	wing	NNS
37894	139	32	.	.	.
37894	140	1	Even	even	RB
37894	140	2	when	when	WRB
37894	140	3	the	the	DT
37894	140	4	images	image	NNS
37894	140	5	are	be	VBP
37894	140	6	so	so	RB
37894	140	7	far	far	RB
37894	140	8	away	away	RB
37894	140	9	that	that	IN
37894	140	10	they	-PRON-	PRP
37894	140	11	are	be	VBP
37894	140	12	pin	pin	NN
37894	140	13	-	-	HYPH
37894	140	14	pointed	point	VBN
37894	140	15	as	as	IN
37894	140	16	mere	mere	JJ
37894	140	17	flecks	fleck	NNS
37894	140	18	of	of	IN
37894	140	19	black	black	NN
37894	140	20	against	against	IN
37894	140	21	the	the	DT
37894	140	22	illuminated	illuminate	VBN
37894	140	23	area	area	NN
37894	140	24	,	,	,
37894	140	25	the	the	DT
37894	140	26	normal	normal	JJ
37894	140	27	eye	eye	NN
37894	140	28	can	can	MD
37894	140	29	follow	follow	VB
37894	140	30	their	-PRON-	PRP$
37894	140	31	progress	progress	NN
37894	140	32	easily	easily	RB
37894	140	33	.	.	.
37894	141	1	In	in	IN
37894	141	2	most	most	JJS
37894	141	3	cases	case	NNS
37894	141	4	the	the	DT
37894	141	5	birds	bird	NNS
37894	141	6	are	be	VBP
37894	141	7	invisible	invisible	JJ
37894	141	8	until	until	IN
37894	141	9	the	the	DT
37894	141	10	moment	moment	NN
37894	141	11	they	-PRON-	PRP
37894	141	12	"	"	``
37894	141	13	enter	enter	VBP
37894	141	14	,	,	,
37894	141	15	"	"	''
37894	141	16	or	or	CC
37894	141	17	pass	pass	VB
37894	141	18	opposite	opposite	RB
37894	141	19	,	,	,
37894	141	20	the	the	DT
37894	141	21	rim	rim	NN
37894	141	22	of	of	IN
37894	141	23	the	the	DT
37894	141	24	moon	moon	NN
37894	141	25	and	and	CC
37894	141	26	vanish	vanish	VB
37894	141	27	the	the	DT
37894	141	28	instant	instant	NN
37894	141	29	they	-PRON-	PRP
37894	141	30	reach	reach	VBP
37894	141	31	the	the	DT
37894	141	32	other	other	JJ
37894	141	33	side	side	NN
37894	141	34	.	.	.
37894	142	1	The	the	DT
37894	142	2	interval	interval	NN
37894	142	3	between	between	IN
37894	142	4	is	be	VBZ
37894	142	5	likely	likely	JJ
37894	142	6	to	to	TO
37894	142	7	be	be	VB
37894	142	8	inestimably	inestimably	RB
37894	142	9	brief	brief	JJ
37894	142	10	.	.	.
37894	143	1	Some	some	DT
37894	143	2	birds	bird	NNS
37894	143	3	seem	seem	VBP
37894	143	4	fairly	fairly	RB
37894	143	5	to	to	TO
37894	143	6	flash	flash	VB
37894	143	7	by	by	RB
37894	143	8	;	;	:
37894	143	9	others	other	NNS
37894	143	10	,	,	,
37894	143	11	to	to	TO
37894	143	12	drift	drift	VB
37894	143	13	;	;	:
37894	143	14	yet	yet	CC
37894	143	15	seldom	seldom	RB
37894	143	16	can	can	MD
37894	143	17	their	-PRON-	PRP$
37894	143	18	passing	passing	NN
37894	143	19	be	be	VB
37894	143	20	counted	count	VBN
37894	143	21	in	in	IN
37894	143	22	seconds	second	NNS
37894	143	23	,	,	,
37894	143	24	or	or	CC
37894	143	25	even	even	RB
37894	143	26	in	in	IN
37894	143	27	measureable	measureable	JJ
37894	143	28	fractions	fraction	NNS
37894	143	29	of	of	IN
37894	143	30	seconds	second	NNS
37894	143	31	.	.	.
37894	144	1	During	during	IN
37894	144	2	these	these	DT
37894	144	3	short	short	JJ
37894	144	4	glimpses	glimpse	NNS
37894	144	5	,	,	,
37894	144	6	the	the	DT
37894	144	7	flight	flight	NN
37894	144	8	paths	path	NNS
37894	144	9	tend	tend	VBP
37894	144	10	to	to	TO
37894	144	11	lie	lie	VB
37894	144	12	along	along	IN
37894	144	13	straight	straight	JJ
37894	144	14	lines	line	NNS
37894	144	15	,	,	,
37894	144	16	though	though	IN
37894	144	17	occasionally	occasionally	RB
37894	144	18	a	a	DT
37894	144	19	bird	bird	NN
37894	144	20	may	may	MD
37894	144	21	be	be	VB
37894	144	22	seen	see	VBN
37894	144	23	to	to	TO
37894	144	24	undulate	undulate	VB
37894	144	25	or	or	CC
37894	144	26	even	even	RB
37894	144	27	to	to	TO
37894	144	28	veer	veer	VB
37894	144	29	off	off	RP
37894	144	30	course	course	RB
37894	144	31	.	.	.
37894	145	1	Now	now	RB
37894	145	2	and	and	CC
37894	145	3	again	again	RB
37894	145	4	,	,	,
37894	145	5	in	in	IN
37894	145	6	contrast	contrast	NN
37894	145	7	to	to	IN
37894	145	8	this	this	DT
37894	145	9	typical	typical	JJ
37894	145	10	picture	picture	NN
37894	145	11	,	,	,
37894	145	12	more	more	RBR
37894	145	13	eerie	eerie	JJ
37894	145	14	effects	effect	NNS
37894	145	15	may	may	MD
37894	145	16	be	be	VB
37894	145	17	noted	note	VBN
37894	145	18	.	.	.
37894	146	1	Some	some	DT
37894	146	2	of	of	IN
37894	146	3	them	-PRON-	PRP
37894	146	4	are	be	VBP
37894	146	5	quite	quite	RB
37894	146	6	startling	startling	JJ
37894	146	7	--	--	:
37894	146	8	a	a	DT
37894	146	9	minute	minute	NN
37894	146	10	,	,	,
37894	146	11	inanimate	inanimate	RB
37894	146	12	-	-	HYPH
37894	146	13	looking	look	VBG
37894	146	14	object	object	NN
37894	146	15	drifting	drift	VBG
37894	146	16	passively	passively	RB
37894	146	17	by	by	IN
37894	146	18	like	like	IN
37894	146	19	a	a	DT
37894	146	20	corpuscle	corpuscle	NN
37894	146	21	seen	see	VBN
37894	146	22	in	in	IN
37894	146	23	the	the	DT
37894	146	24	field	field	NN
37894	146	25	of	of	IN
37894	146	26	a	a	DT
37894	146	27	microscope	microscope	NN
37894	146	28	;	;	:
37894	146	29	a	a	DT
37894	146	30	gigantic	gigantic	JJ
37894	146	31	wing	wing	NN
37894	146	32	brushing	brush	VBG
37894	146	33	across	across	IN
37894	146	34	half	half	PDT
37894	146	35	the	the	DT
37894	146	36	moon	moon	NN
37894	146	37	;	;	:
37894	146	38	a	a	DT
37894	146	39	ghost	ghost	NN
37894	146	40	-	-	HYPH
37894	146	41	like	like	JJ
37894	146	42	suggestion	suggestion	NN
37894	146	43	of	of	IN
37894	146	44	a	a	DT
37894	146	45	bird	bird	NN
37894	146	46	so	so	RB
37894	146	47	transparent	transparent	JJ
37894	146	48	it	-PRON-	PRP
37894	146	49	seems	seem	VBZ
37894	146	50	scarcely	scarcely	RB
37894	146	51	more	more	JJR
37894	146	52	than	than	IN
37894	146	53	a	a	DT
37894	146	54	product	product	NN
37894	146	55	of	of	IN
37894	146	56	the	the	DT
37894	146	57	imagination	imagination	NN
37894	146	58	;	;	:
37894	146	59	a	a	DT
37894	146	60	bird	bird	NN
37894	146	61	that	that	WDT
37894	146	62	pauses	pause	VBZ
37894	146	63	in	in	IN
37894	146	64	mid	mid	NN
37894	146	65	-	-	NN
37894	146	66	flight	flight	NN
37894	146	67	to	to	TO
37894	146	68	hang	hang	VB
37894	146	69	suspended	suspend	VBN
37894	146	70	in	in	IN
37894	146	71	the	the	DT
37894	146	72	sky	sky	NN
37894	146	73	;	;	:
37894	146	74	another	another	DT
37894	146	75	that	that	WDT
37894	146	76	beats	beat	VBZ
37894	146	77	its	-PRON-	PRP$
37894	146	78	way	way	NN
37894	146	79	ineffectually	ineffectually	RB
37894	146	80	forward	forward	RB
37894	146	81	while	while	IN
37894	146	82	it	-PRON-	PRP
37894	146	83	moves	move	VBZ
37894	146	84	steadily	steadily	RB
37894	146	85	to	to	IN
37894	146	86	the	the	DT
37894	146	87	side	side	NN
37894	146	88	;	;	:
37894	146	89	and	and	CC
37894	146	90	flight	flight	NN
37894	146	91	paths	path	NNS
37894	146	92	that	that	WDT
37894	146	93	sweep	sweep	VBP
37894	146	94	across	across	IN
37894	146	95	the	the	DT
37894	146	96	vision	vision	NN
37894	146	97	in	in	IN
37894	146	98	astonishingly	astonishingly	RB
37894	146	99	geometric	geometric	JJ
37894	146	100	curves	curve	NNS
37894	146	101	.	.	.
37894	147	1	All	all	DT
37894	147	2	of	of	IN
37894	147	3	these	these	DT
37894	147	4	things	thing	NNS
37894	147	5	have	have	VBP
37894	147	6	an	an	DT
37894	147	7	explanation	explanation	NN
37894	147	8	.	.	.
37894	148	1	The	the	DT
37894	148	2	"	"	``
37894	148	3	corpuscle	corpuscle	NN
37894	148	4	"	"	''
37894	148	5	is	be	VBZ
37894	148	6	possibly	possibly	RB
37894	148	7	a	a	DT
37894	148	8	physical	physical	JJ
37894	148	9	entity	entity	NN
37894	148	10	of	of	IN
37894	148	11	some	some	DT
37894	148	12	sort	sort	NN
37894	148	13	floating	float	VBG
37894	148	14	in	in	IN
37894	148	15	the	the	DT
37894	148	16	fluid	fluid	NN
37894	148	17	of	of	IN
37894	148	18	the	the	DT
37894	148	19	observer	observer	NN
37894	148	20	's	's	POS
37894	148	21	eye	eye	NN
37894	148	22	and	and	CC
37894	148	23	projected	project	VBN
37894	148	24	into	into	IN
37894	148	25	visibility	visibility	NN
37894	148	26	against	against	IN
37894	148	27	the	the	DT
37894	148	28	whiteness	whiteness	NN
37894	148	29	of	of	IN
37894	148	30	the	the	DT
37894	148	31	moon	moon	NN
37894	148	32	.	.	.
37894	149	1	The	the	DT
37894	149	2	winged	winged	JJ
37894	149	3	transparency	transparency	NN
37894	149	4	may	may	MD
37894	149	5	be	be	VB
37894	149	6	an	an	DT
37894	149	7	insect	insect	NN
37894	149	8	unconsciously	unconsciously	RB
37894	149	9	picked	pick	VBN
37894	149	10	up	up	RP
37894	149	11	by	by	IN
37894	149	12	the	the	DT
37894	149	13	unemployed	unemployed	JJ
37894	149	14	eye	eye	NN
37894	149	15	and	and	CC
37894	149	16	transferred	transfer	VBN
37894	149	17	by	by	IN
37894	149	18	the	the	DT
37894	149	19	_	_	NNP
37894	149	20	camera	camera	NN
37894	149	21	lucida	lucida	VBD
37894	149	22	_	_	NNP
37894	149	23	principle	principle	NN
37894	149	24	to	to	IN
37894	149	25	the	the	DT
37894	149	26	field	field	NN
37894	149	27	of	of	IN
37894	149	28	the	the	DT
37894	149	29	telescope	telescope	NN
37894	149	30	.	.	.
37894	150	1	It	-PRON-	PRP
37894	150	2	may	may	MD
37894	150	3	be	be	VB
37894	150	4	a	a	DT
37894	150	5	bird	bird	NN
37894	150	6	flying	fly	VBG
37894	150	7	very	very	RB
37894	150	8	close	close	RB
37894	150	9	,	,	,
37894	150	10	so	so	CC
37894	150	11	drastically	drastically	RB
37894	150	12	out	out	IN
37894	150	13	of	of	IN
37894	150	14	focus	focus	NN
37894	150	15	that	that	IN
37894	150	16	the	the	DT
37894	150	17	observer	observer	NN
37894	150	18	sees	see	VBZ
37894	150	19	right	right	JJ
37894	150	20	through	through	IN
37894	150	21	it	-PRON-	PRP
37894	150	22	,	,	,
37894	150	23	as	as	IN
37894	150	24	he	-PRON-	PRP
37894	150	25	would	would	MD
37894	150	26	through	through	IN
37894	150	27	a	a	DT
37894	150	28	pencil	pencil	NN
37894	150	29	held	hold	VBN
37894	150	30	against	against	IN
37894	150	31	his	-PRON-	PRP$
37894	150	32	nose	nose	NN
37894	150	33	.	.	.
37894	151	1	The	the	DT
37894	151	2	same	same	JJ
37894	151	3	cause	cause	NN
37894	151	4	,	,	,
37894	151	5	operating	operate	VBG
37894	151	6	less	less	RBR
37894	151	7	effectively	effectively	RB
37894	151	8	,	,	,
37894	151	9	gives	give	VBZ
37894	151	10	a	a	DT
37894	151	11	characteristic	characteristic	JJ
37894	151	12	gray	gray	JJ
37894	151	13	appearance	appearance	NN
37894	151	14	with	with	IN
37894	151	15	hazy	hazy	NN
37894	151	16	edges	edge	NNS
37894	151	17	to	to	IN
37894	151	18	silhouettes	silhouette	NNS
37894	151	19	passing	pass	VBG
37894	151	20	just	just	RB
37894	151	21	beneath	beneath	IN
37894	151	22	the	the	DT
37894	151	23	limits	limit	NNS
37894	151	24	of	of	IN
37894	151	25	sharp	sharp	JJ
37894	151	26	focus	focus	NN
37894	151	27	.	.	.
37894	152	1	Focal	focal	JJ
37894	152	2	distortions	distortion	NNS
37894	152	3	doubtless	doubtless	RB
37894	152	4	also	also	RB
37894	152	5	account	account	VBP
37894	152	6	for	for	IN
37894	152	7	the	the	DT
37894	152	8	precise	precise	JJ
37894	152	9	curvature	curvature	NN
37894	152	10	of	of	IN
37894	152	11	some	some	DT
37894	152	12	flight	flight	NN
37894	152	13	paths	path	NNS
37894	152	14	,	,	,
37894	152	15	for	for	IN
37894	152	16	this	this	DT
37894	152	17	peculiarity	peculiarity	NN
37894	152	18	is	be	VBZ
37894	152	19	seldom	seldom	RB
37894	152	20	associated	associate	VBN
37894	152	21	with	with	IN
37894	152	22	distinct	distinct	JJ
37894	152	23	images	image	NNS
37894	152	24	.	.	.
37894	153	1	Suspended	suspend	VBN
37894	153	2	flight	flight	NN
37894	153	3	and	and	CC
37894	153	4	contradictory	contradictory	JJ
37894	153	5	directions	direction	NNS
37894	153	6	of	of	IN
37894	153	7	drift	drift	NN
37894	153	8	may	may	MD
37894	153	9	sometimes	sometimes	RB
37894	153	10	be	be	VB
37894	153	11	attributable	attributable	JJ
37894	153	12	to	to	TO
37894	153	13	head	head	VB
37894	153	14	winds	wind	NNS
37894	153	15	or	or	CC
37894	153	16	cross	cross	VB
37894	153	17	winds	wind	NNS
37894	153	18	but	but	CC
37894	153	19	more	more	RBR
37894	153	20	often	often	RB
37894	153	21	are	be	VBP
37894	153	22	simply	simply	RB
37894	153	23	illusions	illusion	NNS
37894	153	24	growing	grow	VBG
37894	153	25	out	out	IN
37894	153	26	of	of	IN
37894	153	27	a	a	DT
37894	153	28	two	two	CD
37894	153	29	-	-	HYPH
37894	153	30	dimensional	dimensional	JJ
37894	153	31	impression	impression	NN
37894	153	32	of	of	IN
37894	153	33	a	a	DT
37894	153	34	three	three	CD
37894	153	35	-	-	HYPH
37894	153	36	dimensional	dimensional	JJ
37894	153	37	reality	reality	NN
37894	153	38	.	.	.
37894	154	1	Somewhat	somewhat	RB
37894	154	2	more	more	RBR
37894	154	3	commonplace	commonplace	JJ
37894	154	4	are	be	VBP
37894	154	5	the	the	DT
37894	154	6	changes	change	NNS
37894	154	7	that	that	WDT
37894	154	8	accompany	accompany	VBP
37894	154	9	clouds	cloud	NNS
37894	154	10	.	.	.
37894	155	1	The	the	DT
37894	155	2	moon	moon	NN
37894	155	3	can	can	MD
37894	155	4	be	be	VB
37894	155	5	seen	see	VBN
37894	155	6	through	through	IN
37894	155	7	a	a	DT
37894	155	8	light	light	JJ
37894	155	9	haze	haze	NN
37894	155	10	and	and	CC
37894	155	11	at	at	IN
37894	155	12	times	time	NNS
37894	155	13	remains	remain	VBZ
37894	155	14	so	so	RB
37894	155	15	clearly	clearly	RB
37894	155	16	visible	visible	JJ
37894	155	17	that	that	IN
37894	155	18	the	the	DT
37894	155	19	overcast	overcast	NN
37894	155	20	appears	appear	VBZ
37894	155	21	to	to	TO
37894	155	22	be	be	VB
37894	155	23	behind	behind	RB
37894	155	24	,	,	,
37894	155	25	instead	instead	RB
37894	155	26	of	of	IN
37894	155	27	in	in	IN
37894	155	28	front	front	NN
37894	155	29	of	of	IN
37894	155	30	,	,	,
37894	155	31	it	-PRON-	PRP
37894	155	32	.	.	.
37894	156	1	Under	under	IN
37894	156	2	these	these	DT
37894	156	3	circumstances	circumstance	NNS
37894	156	4	,	,	,
37894	156	5	birds	bird	NNS
37894	156	6	can	can	MD
37894	156	7	still	still	RB
37894	156	8	be	be	VB
37894	156	9	readily	readily	RB
37894	156	10	discerned	discern	VBN
37894	156	11	.	.	.
37894	157	1	Light	light	NN
37894	157	2	reflected	reflect	VBN
37894	157	3	from	from	IN
37894	157	4	the	the	DT
37894	157	5	clouds	cloud	NNS
37894	157	6	may	may	MD
37894	157	7	cause	cause	VB
37894	157	8	the	the	DT
37894	157	9	silhouettes	silhouette	NNS
37894	157	10	to	to	TO
37894	157	11	fade	fade	VB
37894	157	12	somewhat	somewhat	RB
37894	157	13	,	,	,
37894	157	14	but	but	CC
37894	157	15	they	-PRON-	PRP
37894	157	16	retain	retain	VBP
37894	157	17	sufficient	sufficient	JJ
37894	157	18	definition	definition	NN
37894	157	19	to	to	TO
37894	157	20	distinguish	distinguish	VB
37894	157	21	them	-PRON-	PRP
37894	157	22	from	from	IN
37894	157	23	out	out	RB
37894	157	24	-	-	HYPH
37894	157	25	of	of	IN
37894	157	26	-	-	HYPH
37894	157	27	focus	focus	NN
37894	157	28	images	image	NNS
37894	157	29	.	.	.
37894	158	1	On	on	IN
37894	158	2	occasion	occasion	NN
37894	158	3	,	,	,
37894	158	4	when	when	WRB
37894	158	5	white	white	JJ
37894	158	6	cloud	cloud	NN
37894	158	7	banks	bank	NNS
37894	158	8	lie	lie	VBP
37894	158	9	at	at	IN
37894	158	10	a	a	DT
37894	158	11	favorable	favorable	JJ
37894	158	12	level	level	NN
37894	158	13	,	,	,
37894	158	14	they	-PRON-	PRP
37894	158	15	themselves	-PRON-	PRP
37894	158	16	provide	provide	VBP
37894	158	17	a	a	DT
37894	158	18	backdrop	backdrop	NN
37894	158	19	against	against	IN
37894	158	20	which	which	WDT
37894	158	21	birds	bird	NNS
37894	158	22	can	can	MD
37894	158	23	be	be	VB
37894	158	24	followed	follow	VBN
37894	158	25	all	all	PDT
37894	158	26	the	the	DT
37894	158	27	way	way	NN
37894	158	28	across	across	IN
37894	158	29	the	the	DT
37894	158	30	field	field	NN
37894	158	31	of	of	IN
37894	158	32	the	the	DT
37894	158	33	telescope	telescope	NN
37894	158	34	,	,	,
37894	158	35	whether	whether	IN
37894	158	36	or	or	CC
37894	158	37	not	not	RB
37894	158	38	they	-PRON-	PRP
37894	158	39	directly	directly	RB
37894	158	40	traverse	traverse	VBP
37894	158	41	the	the	DT
37894	158	42	main	main	JJ
37894	158	43	area	area	NN
37894	158	44	of	of	IN
37894	158	45	illumination	illumination	NN
37894	158	46	.	.	.
37894	159	1	_	_	NNP
37894	159	2	Types	Types	NNPS
37894	159	3	of	of	IN
37894	159	4	Data	Data	NNPS
37894	159	5	Obtained	obtain	VBN
37894	159	6	_	_	NNP
37894	159	7	The	the	DT
37894	159	8	nature	nature	NN
37894	159	9	of	of	IN
37894	159	10	the	the	DT
37894	159	11	observations	observation	NNS
37894	159	12	just	just	RB
37894	159	13	described	describe	VBN
37894	159	14	imposes	impose	VBZ
37894	159	15	certain	certain	JJ
37894	159	16	limitations	limitation	NNS
37894	159	17	on	on	IN
37894	159	18	the	the	DT
37894	159	19	studies	study	NNS
37894	159	20	that	that	WDT
37894	159	21	can	can	MD
37894	159	22	be	be	VB
37894	159	23	made	make	VBN
37894	159	24	by	by	IN
37894	159	25	means	mean	NNS
37894	159	26	of	of	IN
37894	159	27	the	the	DT
37894	159	28	moon	moon	NN
37894	159	29	.	.	.
37894	160	1	The	the	DT
37894	160	2	speed	speed	NN
37894	160	3	of	of	IN
37894	160	4	the	the	DT
37894	160	5	birds	bird	NNS
37894	160	6	,	,	,
37894	160	7	for	for	IN
37894	160	8	instance	instance	NN
37894	160	9	,	,	,
37894	160	10	is	be	VBZ
37894	160	11	utterly	utterly	RB
37894	160	12	beyond	beyond	IN
37894	160	13	computation	computation	NN
37894	160	14	in	in	IN
37894	160	15	any	any	DT
37894	160	16	manner	manner	NN
37894	160	17	yet	yet	CC
37894	160	18	devised	devise	VBN
37894	160	19	.	.	.
37894	161	1	Not	not	RB
37894	161	2	only	only	RB
37894	161	3	is	be	VBZ
37894	161	4	the	the	DT
37894	161	5	interval	interval	NN
37894	161	6	of	of	IN
37894	161	7	visibility	visibility	NN
37894	161	8	extremely	extremely	RB
37894	161	9	short	short	JJ
37894	161	10	,	,	,
37894	161	11	but	but	CC
37894	161	12	the	the	DT
37894	161	13	rapidity	rapidity	NN
37894	161	14	with	with	IN
37894	161	15	which	which	WDT
37894	161	16	the	the	DT
37894	161	17	birds	bird	NNS
37894	161	18	go	go	VBP
37894	161	19	by	by	IN
37894	161	20	depends	depend	VBZ
37894	161	21	less	less	JJR
37894	161	22	on	on	IN
37894	161	23	their	-PRON-	PRP$
37894	161	24	real	real	JJ
37894	161	25	rate	rate	NN
37894	161	26	of	of	IN
37894	161	27	motion	motion	NN
37894	161	28	than	than	IN
37894	161	29	on	on	IN
37894	161	30	their	-PRON-	PRP$
37894	161	31	proximity	proximity	NN
37894	161	32	to	to	IN
37894	161	33	the	the	DT
37894	161	34	observer	observer	NN
37894	161	35	.	.	.
37894	162	1	The	the	DT
37894	162	2	identification	identification	NN
37894	162	3	of	of	IN
37894	162	4	species	specie	NNS
37894	162	5	taking	take	VBG
37894	162	6	part	part	NN
37894	162	7	in	in	IN
37894	162	8	the	the	DT
37894	162	9	migration	migration	NN
37894	162	10	might	may	MD
37894	162	11	appear	appear	VB
37894	162	12	to	to	TO
37894	162	13	offer	offer	VB
37894	162	14	more	more	JJR
37894	162	15	promise	promise	NN
37894	162	16	,	,	,
37894	162	17	especially	especially	RB
37894	162	18	since	since	IN
37894	162	19	some	some	DT
37894	162	20	of	of	IN
37894	162	21	the	the	DT
37894	162	22	early	early	JJ
37894	162	23	students	student	NNS
37894	162	24	of	of	IN
37894	162	25	the	the	DT
37894	162	26	problem	problem	NN
37894	162	27	frequently	frequently	RB
37894	162	28	attempted	attempt	VBD
37894	162	29	it	-PRON-	PRP
37894	162	30	,	,	,
37894	162	31	but	but	CC
37894	162	32	there	there	EX
37894	162	33	are	be	VBP
37894	162	34	so	so	RB
37894	162	35	many	many	JJ
37894	162	36	deceptive	deceptive	JJ
37894	162	37	elements	element	NNS
37894	162	38	to	to	TO
37894	162	39	contend	contend	VB
37894	162	40	with	with	IN
37894	162	41	that	that	DT
37894	162	42	the	the	DT
37894	162	43	results	result	NNS
37894	162	44	can	can	MD
37894	162	45	not	not	RB
37894	162	46	be	be	VB
37894	162	47	relied	rely	VBN
37894	162	48	upon	upon	IN
37894	162	49	in	in	IN
37894	162	50	any	any	DT
37894	162	51	significant	significant	JJ
37894	162	52	number	number	NN
37894	162	53	of	of	IN
37894	162	54	cases	case	NNS
37894	162	55	.	.	.
37894	163	1	Shorn	Shorn	VBN
37894	163	2	of	of	IN
37894	163	3	their	-PRON-	PRP$
37894	163	4	bills	bill	NNS
37894	163	5	by	by	IN
37894	163	6	the	the	DT
37894	163	7	diminution	diminution	NN
37894	163	8	of	of	IN
37894	163	9	image	image	NN
37894	163	10	,	,	,
37894	163	11	foreshortened	foreshorten	VBN
37894	163	12	into	into	IN
37894	163	13	unfamiliar	unfamiliar	JJ
37894	163	14	shape	shape	NN
37894	163	15	by	by	IN
37894	163	16	varying	vary	VBG
37894	163	17	angles	angle	NNS
37894	163	18	of	of	IN
37894	163	19	perspective	perspective	NN
37894	163	20	,	,	,
37894	163	21	and	and	CC
37894	163	22	glimpsed	glimpse	VBN
37894	163	23	for	for	IN
37894	163	24	an	an	DT
37894	163	25	instant	instant	NN
37894	163	26	only	only	RB
37894	163	27	,	,	,
37894	163	28	large	large	JJ
37894	163	29	species	specie	NNS
37894	163	30	at	at	IN
37894	163	31	distant	distant	JJ
37894	163	32	heights	height	NNS
37894	163	33	may	may	MD
37894	163	34	closely	closely	RB
37894	163	35	resemble	resemble	VB
37894	163	36	small	small	JJ
37894	163	37	species	specie	NNS
37894	163	38	a	a	DT
37894	163	39	few	few	JJ
37894	163	40	hundred	hundred	CD
37894	163	41	feet	foot	NNS
37894	163	42	away	away	RB
37894	163	43	.	.	.
37894	164	1	A	a	DT
37894	164	2	sandpiper	sandpiper	NN
37894	164	3	may	may	MD
37894	164	4	appear	appear	VB
37894	164	5	as	as	RB
37894	164	6	large	large	JJ
37894	164	7	as	as	IN
37894	164	8	a	a	DT
37894	164	9	duck	duck	NN
37894	164	10	;	;	:
37894	164	11	or	or	CC
37894	164	12	a	a	DT
37894	164	13	hawk	hawk	NN
37894	164	14	,	,	,
37894	164	15	as	as	RB
37894	164	16	small	small	JJ
37894	164	17	as	as	IN
37894	164	18	a	a	DT
37894	164	19	sparrow	sparrow	NN
37894	164	20	.	.	.
37894	165	1	A	a	DT
37894	165	2	goatsucker	goatsucker	NN
37894	165	3	may	may	MD
37894	165	4	be	be	VB
37894	165	5	confused	confuse	VBN
37894	165	6	with	with	IN
37894	165	7	a	a	DT
37894	165	8	swallow	swallow	NN
37894	165	9	,	,	,
37894	165	10	and	and	CC
37894	165	11	a	a	DT
37894	165	12	swallow	swallow	NN
37894	165	13	may	may	MD
37894	165	14	pass	pass	VB
37894	165	15	as	as	IN
37894	165	16	a	a	DT
37894	165	17	tern	tern	NN
37894	165	18	.	.	.
37894	166	1	Bats	bat	NNS
37894	166	2	,	,	,
37894	166	3	however	however	RB
37894	166	4	,	,	,
37894	166	5	can	can	MD
37894	166	6	be	be	VB
37894	166	7	consistently	consistently	RB
37894	166	8	recognized	recognize	VBN
37894	166	9	,	,	,
37894	166	10	if	if	IN
37894	166	11	clearly	clearly	RB
37894	166	12	seen	see	VBN
37894	166	13	,	,	,
37894	166	14	by	by	IN
37894	166	15	their	-PRON-	PRP$
37894	166	16	tailless	tailless	JJ
37894	166	17	appearance	appearance	NN
37894	166	18	and	and	CC
37894	166	19	the	the	DT
37894	166	20	forward	forward	JJ
37894	166	21	tilt	tilt	NN
37894	166	22	of	of	IN
37894	166	23	their	-PRON-	PRP$
37894	166	24	wings	wing	NNS
37894	166	25	,	,	,
37894	166	26	as	as	RB
37894	166	27	well	well	RB
37894	166	28	as	as	IN
37894	166	29	by	by	IN
37894	166	30	their	-PRON-	PRP$
37894	166	31	erratic	erratic	JJ
37894	166	32	flight	flight	NN
37894	166	33	.	.	.
37894	167	1	And	and	CC
37894	167	2	separations	separation	NNS
37894	167	3	of	of	IN
37894	167	4	nocturnal	nocturnal	JJ
37894	167	5	migrants	migrant	NNS
37894	167	6	into	into	IN
37894	167	7	broad	broad	JJ
37894	167	8	categories	category	NNS
37894	167	9	,	,	,
37894	167	10	such	such	JJ
37894	167	11	as	as	IN
37894	167	12	seabirds	seabird	NNS
37894	167	13	and	and	CC
37894	167	14	passerine	passerine	NN
37894	167	15	birds	bird	NNS
37894	167	16	,	,	,
37894	167	17	are	be	VBP
37894	167	18	often	often	RB
37894	167	19	both	both	CC
37894	167	20	useful	useful	JJ
37894	167	21	and	and	CC
37894	167	22	feasible	feasible	JJ
37894	167	23	.	.	.
37894	168	1	It	-PRON-	PRP
37894	168	2	would	would	MD
37894	168	3	be	be	VB
37894	168	4	a	a	DT
37894	168	5	wonderful	wonderful	JJ
37894	168	6	convenience	convenience	NN
37894	168	7	to	to	TO
37894	168	8	be	be	VB
37894	168	9	able	able	JJ
37894	168	10	to	to	TO
37894	168	11	clock	clock	VB
37894	168	12	the	the	DT
37894	168	13	speed	speed	NN
37894	168	14	of	of	IN
37894	168	15	night	night	NN
37894	168	16	-	-	HYPH
37894	168	17	flying	fly	VBG
37894	168	18	birds	bird	NNS
37894	168	19	accurately	accurately	RB
37894	168	20	and	and	CC
37894	168	21	to	to	TO
37894	168	22	classify	classify	VB
37894	168	23	them	-PRON-	PRP
37894	168	24	specifically	specifically	RB
37894	168	25	,	,	,
37894	168	26	but	but	CC
37894	168	27	neither	neither	DT
37894	168	28	of	of	IN
37894	168	29	these	these	DT
37894	168	30	things	thing	NNS
37894	168	31	is	be	VBZ
37894	168	32	indispensable	indispensable	JJ
37894	168	33	to	to	IN
37894	168	34	the	the	DT
37894	168	35	general	general	JJ
37894	168	36	study	study	NN
37894	168	37	of	of	IN
37894	168	38	nocturnal	nocturnal	JJ
37894	168	39	migration	migration	NN
37894	168	40	,	,	,
37894	168	41	nor	nor	CC
37894	168	42	as	as	RB
37894	168	43	important	important	JJ
37894	168	44	as	as	IN
37894	168	45	the	the	DT
37894	168	46	three	three	CD
37894	168	47	kinds	kind	NNS
37894	168	48	of	of	IN
37894	168	49	basic	basic	JJ
37894	168	50	data	datum	NNS
37894	168	51	that	that	WDT
37894	168	52	_	_	NNP
37894	168	53	are	be	VBP
37894	168	54	_	_	NNP
37894	168	55	provided	provide	VBN
37894	168	56	by	by	IN
37894	168	57	telescopes	telescope	NNS
37894	168	58	directed	direct	VBN
37894	168	59	at	at	IN
37894	168	60	the	the	DT
37894	168	61	moon	moon	NN
37894	168	62	.	.	.
37894	169	1	These	these	DT
37894	169	2	concern:--(1	concern:--(1	NN
37894	169	3	)	)	-RRB-
37894	169	4	the	the	DT
37894	169	5	direction	direction	NN
37894	169	6	in	in	IN
37894	169	7	which	which	WDT
37894	169	8	the	the	DT
37894	169	9	birds	bird	NNS
37894	169	10	are	be	VBP
37894	169	11	traveling	travel	VBG
37894	169	12	;	;	:
37894	169	13	(	(	-LRB-
37894	169	14	2	2	LS
37894	169	15	)	)	-RRB-
37894	169	16	their	-PRON-	PRP$
37894	169	17	altitude	altitude	NN
37894	169	18	above	above	IN
37894	169	19	the	the	DT
37894	169	20	earth	earth	NN
37894	169	21	;	;	,
37894	169	22	(	(	-LRB-
37894	169	23	3	3	LS
37894	169	24	)	)	-RRB-
37894	169	25	the	the	DT
37894	169	26	number	number	NN
37894	169	27	per	per	IN
37894	169	28	unit	unit	NN
37894	169	29	of	of	IN
37894	169	30	space	space	NN
37894	169	31	passing	pass	VBG
37894	169	32	the	the	DT
37894	169	33	observation	observation	NN
37894	169	34	station	station	NN
37894	169	35	.	.	.
37894	170	1	Unfortunately	unfortunately	RB
37894	170	2	none	none	NN
37894	170	3	of	of	IN
37894	170	4	these	these	DT
37894	170	5	things	thing	NNS
37894	170	6	can	can	MD
37894	170	7	be	be	VB
37894	170	8	perceived	perceive	VBN
37894	170	9	directly	directly	RB
37894	170	10	,	,	,
37894	170	11	except	except	IN
37894	170	12	in	in	IN
37894	170	13	a	a	DT
37894	170	14	very	very	RB
37894	170	15	haphazard	haphazard	NN
37894	170	16	manner	manner	NN
37894	170	17	.	.	.
37894	171	1	Direction	direction	NN
37894	171	2	is	be	VBZ
37894	171	3	seen	see	VBN
37894	171	4	by	by	IN
37894	171	5	the	the	DT
37894	171	6	observer	observer	NN
37894	171	7	in	in	IN
37894	171	8	terms	term	NNS
37894	171	9	of	of	IN
37894	171	10	the	the	DT
37894	171	11	slant	slant	NN
37894	171	12	of	of	IN
37894	171	13	a	a	DT
37894	171	14	bird	bird	NN
37894	171	15	's	's	POS
37894	171	16	pathway	pathway	NN
37894	171	17	across	across	IN
37894	171	18	the	the	DT
37894	171	19	face	face	NN
37894	171	20	of	of	IN
37894	171	21	the	the	DT
37894	171	22	moon	moon	NN
37894	171	23	,	,	,
37894	171	24	and	and	CC
37894	171	25	may	may	MD
37894	171	26	be	be	VB
37894	171	27	so	so	RB
37894	171	28	recorded	record	VBN
37894	171	29	.	.	.
37894	172	1	But	but	CC
37894	172	2	the	the	DT
37894	172	3	meaning	meaning	NN
37894	172	4	of	of	IN
37894	172	5	every	every	DT
37894	172	6	such	such	JJ
37894	172	7	slant	slant	NN
37894	172	8	in	in	IN
37894	172	9	terms	term	NNS
37894	172	10	of	of	IN
37894	172	11	its	-PRON-	PRP$
37894	172	12	corresponding	correspond	VBG
37894	172	13	compass	compass	NN
37894	172	14	direction	direction	NN
37894	172	15	on	on	IN
37894	172	16	the	the	DT
37894	172	17	plane	plane	NN
37894	172	18	of	of	IN
37894	172	19	the	the	DT
37894	172	20	earth	earth	NN
37894	172	21	constantly	constantly	RB
37894	172	22	changes	change	VBZ
37894	172	23	with	with	IN
37894	172	24	the	the	DT
37894	172	25	position	position	NN
37894	172	26	of	of	IN
37894	172	27	the	the	DT
37894	172	28	moon	moon	NN
37894	172	29	.	.	.
37894	173	1	Altitude	altitude	NN
37894	173	2	is	be	VBZ
37894	173	3	only	only	RB
37894	173	4	vaguely	vaguely	RB
37894	173	5	revealed	reveal	VBN
37894	173	6	through	through	IN
37894	173	7	a	a	DT
37894	173	8	single	single	JJ
37894	173	9	telescope	telescope	NN
37894	173	10	by	by	IN
37894	173	11	the	the	DT
37894	173	12	size	size	NN
37894	173	13	and	and	CC
37894	173	14	definition	definition	NN
37894	173	15	of	of	IN
37894	173	16	images	image	NNS
37894	173	17	whose	whose	WP$
37894	173	18	identity	identity	NN
37894	173	19	and	and	CC
37894	173	20	consequent	consequent	JJ
37894	173	21	real	real	JJ
37894	173	22	dimensions	dimension	NNS
37894	173	23	are	be	VBP
37894	173	24	subject	subject	JJ
37894	173	25	to	to	IN
37894	173	26	serious	serious	JJ
37894	173	27	misinterpretation	misinterpretation	NN
37894	173	28	,	,	,
37894	173	29	for	for	IN
37894	173	30	reasons	reason	NNS
37894	173	31	already	already	RB
37894	173	32	explained	explain	VBN
37894	173	33	.	.	.
37894	174	1	The	the	DT
37894	174	2	number	number	NN
37894	174	3	of	of	IN
37894	174	4	birds	bird	NNS
37894	174	5	per	per	IN
37894	174	6	unit	unit	NN
37894	174	7	of	of	IN
37894	174	8	space	space	NN
37894	174	9	,	,	,
37894	174	10	seemingly	seemingly	RB
37894	174	11	the	the	DT
37894	174	12	easiest	easy	JJS
37894	174	13	of	of	IN
37894	174	14	all	all	PDT
37894	174	15	the	the	DT
37894	174	16	features	feature	NNS
37894	174	17	of	of	IN
37894	174	18	migration	migration	NN
37894	174	19	to	to	TO
37894	174	20	ascertain	ascertain	NN
37894	174	21	,	,	,
37894	174	22	is	be	VBZ
37894	174	23	actually	actually	RB
37894	174	24	the	the	DT
37894	174	25	most	most	RBS
37894	174	26	difficult	difficult	JJ
37894	174	27	,	,	,
37894	174	28	requiring	require	VBG
37894	174	29	a	a	DT
37894	174	30	prior	prior	JJ
37894	174	31	knowledge	knowledge	NN
37894	174	32	of	of	IN
37894	174	33	both	both	DT
37894	174	34	direction	direction	NN
37894	174	35	and	and	CC
37894	174	36	altitude	altitude	NN
37894	174	37	.	.	.
37894	175	1	To	to	TO
37894	175	2	understand	understand	VB
37894	175	3	why	why	WRB
37894	175	4	this	this	DT
37894	175	5	is	be	VBZ
37894	175	6	so	so	RB
37894	175	7	,	,	,
37894	175	8	it	-PRON-	PRP
37894	175	9	will	will	MD
37894	175	10	be	be	VB
37894	175	11	necessary	necessary	JJ
37894	175	12	to	to	TO
37894	175	13	consider	consider	VB
37894	175	14	carefully	carefully	RB
37894	175	15	the	the	DT
37894	175	16	true	true	JJ
37894	175	17	nature	nature	NN
37894	175	18	of	of	IN
37894	175	19	the	the	DT
37894	175	20	field	field	NN
37894	175	21	of	of	IN
37894	175	22	observation	observation	NN
37894	175	23	.	.	.
37894	176	1	_	_	NNP
37894	176	2	The	the	DT
37894	176	3	Changing	Changing	NNP
37894	176	4	Field	Field	NNP
37894	176	5	of	of	IN
37894	176	6	Observation	Observation	NNP
37894	176	7	_	_	NNP
37894	176	8	Most	Most	JJS
37894	176	9	of	of	IN
37894	176	10	the	the	DT
37894	176	11	observations	observation	NNS
37894	176	12	used	use	VBN
37894	176	13	in	in	IN
37894	176	14	this	this	DT
37894	176	15	study	study	NN
37894	176	16	were	be	VBD
37894	176	17	made	make	VBN
37894	176	18	in	in	IN
37894	176	19	the	the	DT
37894	176	20	week	week	NN
37894	176	21	centering	center	VBG
37894	176	22	on	on	IN
37894	176	23	the	the	DT
37894	176	24	time	time	NN
37894	176	25	of	of	IN
37894	176	26	the	the	DT
37894	176	27	full	full	JJ
37894	176	28	moon	moon	NN
37894	176	29	.	.	.
37894	177	1	During	during	IN
37894	177	2	this	this	DT
37894	177	3	period	period	NN
37894	177	4	the	the	DT
37894	177	5	lunar	lunar	JJ
37894	177	6	disc	disc	NN
37894	177	7	progresses	progress	NNS
37894	177	8	from	from	IN
37894	177	9	nearly	nearly	RB
37894	177	10	round	round	JJ
37894	177	11	to	to	IN
37894	177	12	round	round	NN
37894	177	13	and	and	CC
37894	177	14	back	back	RB
37894	177	15	again	again	RB
37894	177	16	with	with	IN
37894	177	17	little	little	JJ
37894	177	18	change	change	NN
37894	177	19	in	in	IN
37894	177	20	essential	essential	JJ
37894	177	21	aspect	aspect	NN
37894	177	22	or	or	CC
37894	177	23	apparent	apparent	JJ
37894	177	24	size	size	NN
37894	177	25	.	.	.
37894	178	1	To	to	IN
37894	178	2	the	the	DT
37894	178	3	man	man	NN
37894	178	4	behind	behind	IN
37894	178	5	the	the	DT
37894	178	6	telescope	telescope	NN
37894	178	7	,	,	,
37894	178	8	the	the	DT
37894	178	9	passage	passage	NN
37894	178	10	of	of	IN
37894	178	11	birds	bird	NNS
37894	178	12	looks	look	VBZ
37894	178	13	like	like	IN
37894	178	14	a	a	DT
37894	178	15	performance	performance	NN
37894	178	16	in	in	IN
37894	178	17	two	two	CD
37894	178	18	dimensions	dimension	NNS
37894	178	19	taking	take	VBG
37894	178	20	place	place	NN
37894	178	21	in	in	IN
37894	178	22	this	this	DT
37894	178	23	area	area	NN
37894	178	24	of	of	IN
37894	178	25	seemingly	seemingly	RB
37894	178	26	constant	constant	JJ
37894	178	27	diameter	diameter	NN
37894	178	28	--	--	:
37894	178	29	not	not	RB
37894	178	30	unlike	unlike	IN
37894	178	31	the	the	DT
37894	178	32	movement	movement	NN
37894	178	33	of	of	IN
37894	178	34	insects	insect	NNS
37894	178	35	scooting	scoot	VBG
37894	178	36	over	over	IN
37894	178	37	a	a	DT
37894	178	38	circle	circle	NN
37894	178	39	of	of	IN
37894	178	40	paper	paper	NN
37894	178	41	on	on	IN
37894	178	42	the	the	DT
37894	178	43	ground	ground	NN
37894	178	44	.	.	.
37894	179	1	Actually	actually	RB
37894	179	2	,	,	,
37894	179	3	as	as	IN
37894	179	4	an	an	DT
37894	179	5	instant	instant	NN
37894	179	6	's	's	POS
37894	179	7	reflection	reflection	NN
37894	179	8	serves	serve	VBZ
37894	179	9	to	to	TO
37894	179	10	show	show	VB
37894	179	11	,	,	,
37894	179	12	the	the	DT
37894	179	13	two	two	CD
37894	179	14	situations	situation	NNS
37894	179	15	are	be	VBP
37894	179	16	not	not	RB
37894	179	17	at	at	RB
37894	179	18	all	all	RB
37894	179	19	the	the	DT
37894	179	20	same	same	JJ
37894	179	21	.	.	.
37894	180	1	The	the	DT
37894	180	2	insects	insect	NNS
37894	180	3	are	be	VBP
37894	180	4	all	all	DT
37894	180	5	moving	move	VBG
37894	180	6	in	in	IN
37894	180	7	one	one	CD
37894	180	8	plane	plane	NN
37894	180	9	.	.	.
37894	181	1	The	the	DT
37894	181	2	birds	bird	NNS
37894	181	3	only	only	RB
37894	181	4	appear	appear	VBP
37894	181	5	to	to	TO
37894	181	6	do	do	VB
37894	181	7	so	so	RB
37894	181	8	.	.	.
37894	182	1	They	-PRON-	PRP
37894	182	2	may	may	MD
37894	182	3	be	be	VB
37894	182	4	flying	fly	VBG
37894	182	5	at	at	IN
37894	182	6	elevations	elevation	NNS
37894	182	7	of	of	IN
37894	182	8	500	500	CD
37894	182	9	,	,	,
37894	182	10	1000	1000	CD
37894	182	11	,	,	,
37894	182	12	or	or	CC
37894	182	13	2000	2000	CD
37894	182	14	feet	foot	NNS
37894	182	15	;	;	:
37894	182	16	and	and	CC
37894	182	17	,	,	,
37894	182	18	though	though	IN
37894	182	19	they	-PRON-	PRP
37894	182	20	give	give	VBP
37894	182	21	the	the	DT
37894	182	22	illusion	illusion	NN
37894	182	23	of	of	IN
37894	182	24	crossing	cross	VBG
37894	182	25	the	the	DT
37894	182	26	same	same	JJ
37894	182	27	illuminated	illuminate	VBN
37894	182	28	area	area	NN
37894	182	29	,	,	,
37894	182	30	the	the	DT
37894	182	31	actual	actual	JJ
37894	182	32	breadth	breadth	NN
37894	182	33	of	of	IN
37894	182	34	the	the	DT
37894	182	35	visible	visible	JJ
37894	182	36	space	space	NN
37894	182	37	is	be	VBZ
37894	182	38	much	much	RB
37894	182	39	greater	great	JJR
37894	182	40	at	at	IN
37894	182	41	the	the	DT
37894	182	42	higher	high	JJR
37894	182	43	,	,	,
37894	182	44	than	than	IN
37894	182	45	at	at	IN
37894	182	46	the	the	DT
37894	182	47	lower	low	JJR
37894	182	48	,	,	,
37894	182	49	level	level	NN
37894	182	50	.	.	.
37894	183	1	For	for	IN
37894	183	2	this	this	DT
37894	183	3	reason	reason	NN
37894	183	4	,	,	,
37894	183	5	other	other	JJ
37894	183	6	things	thing	NNS
37894	183	7	being	be	VBG
37894	183	8	equal	equal	JJ
37894	183	9	,	,	,
37894	183	10	birds	bird	NNS
37894	183	11	nearby	nearby	RB
37894	183	12	cross	cross	VBP
37894	183	13	the	the	DT
37894	183	14	moon	moon	NN
37894	183	15	much	much	RB
37894	183	16	more	more	RBR
37894	183	17	swiftly	swiftly	RB
37894	183	18	than	than	IN
37894	183	19	distant	distant	JJ
37894	183	20	ones	one	NNS
37894	183	21	.	.	.
37894	184	1	The	the	DT
37894	184	2	field	field	NN
37894	184	3	of	of	IN
37894	184	4	observation	observation	NN
37894	184	5	is	be	VBZ
37894	184	6	not	not	RB
37894	184	7	an	an	DT
37894	184	8	area	area	NN
37894	184	9	in	in	IN
37894	184	10	the	the	DT
37894	184	11	sky	sky	NN
37894	184	12	but	but	CC
37894	184	13	a	a	DT
37894	184	14	volume	volume	NN
37894	184	15	in	in	IN
37894	184	16	space	space	NN
37894	184	17	,	,	,
37894	184	18	bounded	bound	VBN
37894	184	19	by	by	IN
37894	184	20	the	the	DT
37894	184	21	diverging	diverge	VBG
37894	184	22	field	field	NN
37894	184	23	lines	line	NNS
37894	184	24	of	of	IN
37894	184	25	the	the	DT
37894	184	26	observer	observer	NN
37894	184	27	's	's	POS
37894	184	28	vision	vision	NN
37894	184	29	.	.	.
37894	185	1	Specifically	specifically	RB
37894	185	2	,	,	,
37894	185	3	it	-PRON-	PRP
37894	185	4	is	be	VBZ
37894	185	5	an	an	DT
37894	185	6	inverted	inverted	JJ
37894	185	7	cone	cone	NN
37894	185	8	with	with	IN
37894	185	9	its	-PRON-	PRP$
37894	185	10	base	base	NN
37894	185	11	at	at	IN
37894	185	12	the	the	DT
37894	185	13	moon	moon	NN
37894	185	14	and	and	CC
37894	185	15	its	-PRON-	PRP$
37894	185	16	vertex	vertex	NN
37894	185	17	at	at	IN
37894	185	18	the	the	DT
37894	185	19	telescope	telescope	NN
37894	185	20	.	.	.
37894	186	1	Since	since	IN
37894	186	2	the	the	DT
37894	186	3	distance	distance	NN
37894	186	4	from	from	IN
37894	186	5	the	the	DT
37894	186	6	moon	moon	NN
37894	186	7	to	to	IN
37894	186	8	the	the	DT
37894	186	9	earth	earth	NN
37894	186	10	does	do	VBZ
37894	186	11	not	not	RB
37894	186	12	vary	vary	VB
37894	186	13	a	a	DT
37894	186	14	great	great	JJ
37894	186	15	deal	deal	NN
37894	186	16	,	,	,
37894	186	17	the	the	DT
37894	186	18	full	full	JJ
37894	186	19	dimensions	dimension	NNS
37894	186	20	of	of	IN
37894	186	21	the	the	DT
37894	186	22	Great	Great	NNP
37894	186	23	Cone	Cone	NNP
37894	186	24	determined	determine	VBN
37894	186	25	by	by	IN
37894	186	26	the	the	DT
37894	186	27	diameter	diameter	NN
37894	186	28	of	of	IN
37894	186	29	the	the	DT
37894	186	30	moon	moon	NN
37894	186	31	and	and	CC
37894	186	32	a	a	DT
37894	186	33	point	point	NN
37894	186	34	on	on	IN
37894	186	35	the	the	DT
37894	186	36	earth	earth	NN
37894	186	37	remain	remain	VBP
37894	186	38	at	at	IN
37894	186	39	all	all	DT
37894	186	40	times	time	NNS
37894	186	41	fairly	fairly	RB
37894	186	42	constant	constant	JJ
37894	186	43	.	.	.
37894	187	1	Just	just	RB
37894	187	2	what	what	WP
37894	187	3	they	-PRON-	PRP
37894	187	4	are	be	VBP
37894	187	5	does	do	VBZ
37894	187	6	not	not	RB
37894	187	7	concern	concern	VB
37894	187	8	us	-PRON-	PRP
37894	187	9	here	here	RB
37894	187	10	,	,	,
37894	187	11	except	except	IN
37894	187	12	as	as	IN
37894	187	13	regards	regard	VBZ
37894	187	14	the	the	DT
37894	187	15	angle	angle	NN
37894	187	16	of	of	IN
37894	187	17	the	the	DT
37894	187	18	apex	apex	NN
37894	187	19	(	(	-LRB-
37894	187	20	roughly	roughly	RB
37894	187	21	1/2	1/2	CD
37894	187	22	°	°	NNS
37894	187	23	)	)	-RRB-
37894	187	24	,	,	,
37894	187	25	because	because	IN
37894	187	26	obviously	obviously	RB
37894	187	27	the	the	DT
37894	187	28	effective	effective	JJ
37894	187	29	field	field	NN
37894	187	30	of	of	IN
37894	187	31	observation	observation	NN
37894	187	32	is	be	VBZ
37894	187	33	limited	limit	VBN
37894	187	34	to	to	IN
37894	187	35	that	that	DT
37894	187	36	portion	portion	NN
37894	187	37	of	of	IN
37894	187	38	the	the	DT
37894	187	39	Great	Great	NNP
37894	187	40	Cone	Cone	NNP
37894	187	41	below	below	IN
37894	187	42	the	the	DT
37894	187	43	maximum	maximum	JJ
37894	187	44	ceiling	ceiling	NN
37894	187	45	at	at	IN
37894	187	46	which	which	WDT
37894	187	47	birds	bird	NNS
37894	187	48	fly	fly	VBP
37894	187	49	,	,	,
37894	187	50	a	a	DT
37894	187	51	much	much	RB
37894	187	52	smaller	small	JJR
37894	187	53	cone	cone	NN
37894	187	54	,	,	,
37894	187	55	which	which	WDT
37894	187	56	I	-PRON-	PRP
37894	187	57	shall	shall	MD
37894	187	58	refer	refer	VB
37894	187	59	to	to	IN
37894	187	60	as	as	IN
37894	187	61	the	the	DT
37894	187	62	Cone	Cone	NNP
37894	187	63	of	of	IN
37894	187	64	Observation	Observation	NNP
37894	187	65	(	(	-LRB-
37894	187	66	Figure	Figure	NNP
37894	187	67	1	1	CD
37894	187	68	)	)	-RRB-
37894	187	69	.	.	.
37894	188	1	[	[	-LRB-
37894	188	2	Illustration	illustration	NN
37894	188	3	:	:	:
37894	188	4	FIG	FIG	NNP
37894	188	5	.	.	.
37894	189	1	1	1	LS
37894	189	2	.	.	.
37894	190	1	The	the	DT
37894	190	2	field	field	NN
37894	190	3	of	of	IN
37894	190	4	observation	observation	NN
37894	190	5	,	,	,
37894	190	6	showing	show	VBG
37894	190	7	its	-PRON-	PRP$
37894	190	8	two	two	CD
37894	190	9	-	-	HYPH
37894	190	10	dimensional	dimensional	JJ
37894	190	11	aspect	aspect	NN
37894	190	12	as	as	IN
37894	190	13	it	-PRON-	PRP
37894	190	14	appears	appear	VBZ
37894	190	15	to	to	IN
37894	190	16	the	the	DT
37894	190	17	observer	observer	NN
37894	190	18	and	and	CC
37894	190	19	its	-PRON-	PRP$
37894	190	20	three	three	CD
37894	190	21	-	-	HYPH
37894	190	22	dimensional	dimensional	JJ
37894	190	23	actuality	actuality	NN
37894	190	24	.	.	.
37894	191	1	The	the	DT
37894	191	2	breadth	breadth	NN
37894	191	3	of	of	IN
37894	191	4	the	the	DT
37894	191	5	cone	cone	NN
37894	191	6	is	be	VBZ
37894	191	7	greatly	greatly	RB
37894	191	8	exaggerated	exaggerated	JJ
37894	191	9	.	.	.
37894	191	10	]	]	-RRB-
37894	192	1	[	[	-LRB-
37894	192	2	Illustration	illustration	NN
37894	192	3	:	:	:
37894	192	4	FIG	FIG	NNP
37894	192	5	.	.	.
37894	193	1	2	2	LS
37894	193	2	.	.	.
37894	194	1	Method	method	NN
37894	194	2	for	for	IN
37894	194	3	determining	determine	VBG
37894	194	4	the	the	DT
37894	194	5	diameter	diameter	NN
37894	194	6	of	of	IN
37894	194	7	the	the	DT
37894	194	8	cone	cone	NN
37894	194	9	at	at	IN
37894	194	10	any	any	DT
37894	194	11	point	point	NN
37894	194	12	.	.	.
37894	195	1	The	the	DT
37894	195	2	angular	angular	JJ
37894	195	3	diameter	diameter	NN
37894	195	4	of	of	IN
37894	195	5	the	the	DT
37894	195	6	moon	moon	NN
37894	195	7	may	may	MD
37894	195	8	be	be	VB
37894	195	9	expressed	express	VBN
37894	195	10	in	in	IN
37894	195	11	radians	radian	NNS
37894	195	12	,	,	,
37894	195	13	or	or	CC
37894	195	14	,	,	,
37894	195	15	in	in	IN
37894	195	16	other	other	JJ
37894	195	17	words	word	NNS
37894	195	18	,	,	,
37894	195	19	in	in	IN
37894	195	20	terms	term	NNS
37894	195	21	of	of	IN
37894	195	22	lengths	length	NNS
37894	195	23	of	of	IN
37894	195	24	arc	arc	NN
37894	195	25	equivalent	equivalent	JJ
37894	195	26	to	to	IN
37894	195	27	the	the	DT
37894	195	28	radius	radius	NN
37894	195	29	of	of	IN
37894	195	30	a	a	DT
37894	195	31	circle	circle	NN
37894	195	32	.	.	.
37894	196	1	In	in	IN
37894	196	2	the	the	DT
37894	196	3	diagram	diagram	NN
37894	196	4	,	,	,
37894	196	5	the	the	DT
37894	196	6	arc	arc	NN
37894	196	7	between	between	IN
37894	196	8	C	C	NNP
37894	196	9	and	and	CC
37894	196	10	E	e	NN
37894	196	11	,	,	,
37894	196	12	being	be	VBG
37894	196	13	equivalent	equivalent	JJ
37894	196	14	to	to	IN
37894	196	15	the	the	DT
37894	196	16	radius	radius	NN
37894	196	17	CO	CO	NNP
37894	196	18	,	,	,
37894	196	19	represents	represent	VBZ
37894	196	20	a	a	DT
37894	196	21	radian	radian	NN
37894	196	22	.	.	.
37894	197	1	If	if	IN
37894	197	2	we	-PRON-	PRP
37894	197	3	allow	allow	VBP
37894	197	4	the	the	DT
37894	197	5	arc	arc	NN
37894	197	6	between	between	IN
37894	197	7	A	a	NN
37894	197	8	and	and	CC
37894	197	9	B	b	NN
37894	197	10	to	to	TO
37894	197	11	be	be	VB
37894	197	12	the	the	DT
37894	197	13	diameter	diameter	NN
37894	197	14	of	of	IN
37894	197	15	the	the	DT
37894	197	16	moon	moon	NN
37894	197	17	,	,	,
37894	197	18	it	-PRON-	PRP
37894	197	19	is	be	VBZ
37894	197	20	by	by	IN
37894	197	21	astronomical	astronomical	JJ
37894	197	22	calculation	calculation	NN
37894	197	23	about	about	IN
37894	197	24	.009	.009	CD
37894	197	25	radian	radian	JJ
37894	197	26	,	,	,
37894	197	27	or	or	CC
37894	197	28	.009	.009	CD
37894	197	29	CO	co	NN
37894	197	30	.	.	.
37894	198	1	This	this	DT
37894	198	2	ratio	ratio	NN
37894	198	3	will	will	MD
37894	198	4	hold	hold	VB
37894	198	5	for	for	IN
37894	198	6	any	any	DT
37894	198	7	smaller	small	JJR
37894	198	8	circle	circle	NN
37894	198	9	inscribed	inscribe	VBN
37894	198	10	about	about	IN
37894	198	11	the	the	DT
37894	198	12	center	center	NN
37894	198	13	O	o	UH
37894	198	14	;	;	:
37894	198	15	that	that	RB
37894	198	16	is	is	RB
37894	198	17	,	,	,
37894	198	18	the	the	DT
37894	198	19	arc	arc	NN
37894	198	20	between	between	IN
37894	198	21	A´B	A´B	NNP
37894	198	22	´	´	NNP
37894	198	23	equals	equal	VBZ
37894	198	24	.009	.009	CD
37894	198	25	C´O.	C´O.	NNS
37894	199	1	Thus	thus	RB
37894	199	2	the	the	DT
37894	199	3	width	width	NN
37894	199	4	of	of	IN
37894	199	5	the	the	DT
37894	199	6	cone	cone	NN
37894	199	7	of	of	IN
37894	199	8	observation	observation	NN
37894	199	9	at	at	IN
37894	199	10	any	any	DT
37894	199	11	point	point	NN
37894	199	12	,	,	,
37894	199	13	expressed	express	VBN
37894	199	14	in	in	IN
37894	199	15	degrees	degree	NNS
37894	199	16	of	of	IN
37894	199	17	arc	arc	NN
37894	199	18	,	,	,
37894	199	19	is	be	VBZ
37894	199	20	.009	.009	CD
37894	199	21	of	of	IN
37894	199	22	the	the	DT
37894	199	23	axis	axi	NNS
37894	199	24	of	of	IN
37894	199	25	the	the	DT
37894	199	26	cone	cone	NN
37894	199	27	up	up	RP
37894	199	28	to	to	IN
37894	199	29	that	that	DT
37894	199	30	point	point	NN
37894	199	31	.	.	.
37894	200	1	The	the	DT
37894	200	2	cone	cone	NN
37894	200	3	is	be	VBZ
37894	200	4	so	so	RB
37894	200	5	slender	slend	JJR
37894	200	6	that	that	IN
37894	200	7	the	the	DT
37894	200	8	arc	arc	NN
37894	200	9	between	between	IN
37894	200	10	A	a	NN
37894	200	11	and	and	CC
37894	200	12	B	b	NN
37894	200	13	is	be	VBZ
37894	200	14	essentially	essentially	RB
37894	200	15	equal	equal	JJ
37894	200	16	to	to	IN
37894	200	17	the	the	DT
37894	200	18	chord	chord	NN
37894	200	19	AB	AB	NNP
37894	200	20	.	.	.
37894	201	1	Exactly	exactly	RB
37894	201	2	the	the	DT
37894	201	3	same	same	JJ
37894	201	4	consideration	consideration	NN
37894	201	5	holds	hold	VBZ
37894	201	6	true	true	JJ
37894	201	7	for	for	IN
37894	201	8	the	the	DT
37894	201	9	smaller	small	JJR
37894	201	10	circle	circle	NN
37894	201	11	where	where	WRB
37894	201	12	the	the	DT
37894	201	13	chord	chord	NN
37894	201	14	A´B	A´B	NNP
37894	201	15	´	´	NNP
37894	201	16	represents	represent	VBZ
37894	201	17	part	part	NN
37894	201	18	of	of	IN
37894	201	19	the	the	DT
37894	201	20	flight	flight	NN
37894	201	21	ceiling	ceiling	NN
37894	201	22	.	.	.
37894	201	23	]	]	-RRB-
37894	202	1	The	the	DT
37894	202	2	problem	problem	NN
37894	202	3	of	of	IN
37894	202	4	expressing	express	VBG
37894	202	5	the	the	DT
37894	202	6	number	number	NN
37894	202	7	of	of	IN
37894	202	8	passing	pass	VBG
37894	202	9	birds	bird	NNS
37894	202	10	in	in	IN
37894	202	11	terms	term	NNS
37894	202	12	of	of	IN
37894	202	13	a	a	DT
37894	202	14	definite	definite	JJ
37894	202	15	quantity	quantity	NN
37894	202	16	of	of	IN
37894	202	17	space	space	NN
37894	202	18	is	be	VBZ
37894	202	19	fundamentally	fundamentally	RB
37894	202	20	one	one	CD
37894	202	21	of	of	IN
37894	202	22	finding	find	VBG
37894	202	23	out	out	RP
37894	202	24	the	the	DT
37894	202	25	critical	critical	JJ
37894	202	26	dimensions	dimension	NNS
37894	202	27	of	of	IN
37894	202	28	this	this	DT
37894	202	29	smaller	small	JJR
37894	202	30	cone	cone	NN
37894	202	31	.	.	.
37894	203	1	The	the	DT
37894	203	2	diameter	diameter	NN
37894	203	3	at	at	IN
37894	203	4	any	any	DT
37894	203	5	distance	distance	NN
37894	203	6	from	from	IN
37894	203	7	the	the	DT
37894	203	8	observer	observer	NN
37894	203	9	may	may	MD
37894	203	10	be	be	VB
37894	203	11	determined	determine	VBN
37894	203	12	with	with	IN
37894	203	13	enough	enough	JJ
37894	203	14	accuracy	accuracy	NN
37894	203	15	for	for	IN
37894	203	16	our	-PRON-	PRP$
37894	203	17	purposes	purpose	NNS
37894	203	18	simply	simply	RB
37894	203	19	by	by	IN
37894	203	20	multiplying	multiply	VBG
37894	203	21	the	the	DT
37894	203	22	distance	distance	NN
37894	203	23	by	by	IN
37894	203	24	.009	.009	CD
37894	203	25	,	,	,
37894	203	26	a	a	DT
37894	203	27	convenient	convenient	JJ
37894	203	28	approximation	approximation	NN
37894	203	29	of	of	IN
37894	203	30	the	the	DT
37894	203	31	diameter	diameter	NN
37894	203	32	of	of	IN
37894	203	33	the	the	DT
37894	203	34	moon	moon	NN
37894	203	35	,	,	,
37894	203	36	expressed	express	VBN
37894	203	37	in	in	IN
37894	203	38	radians	radians	NNPS
37894	203	39	(	(	-LRB-
37894	203	40	see	see	VB
37894	203	41	Figure	Figure	NNP
37894	203	42	2	2	CD
37894	203	43	)	)	-RRB-
37894	203	44	.	.	.
37894	204	1	One	one	CD
37894	204	2	hundred	hundred	CD
37894	204	3	feet	foot	NNS
37894	204	4	away	away	RB
37894	204	5	,	,	,
37894	204	6	it	-PRON-	PRP
37894	204	7	is	be	VBZ
37894	204	8	approximately	approximately	RB
37894	204	9	11	11	CD
37894	204	10	inches	inch	NNS
37894	204	11	;	;	:
37894	204	12	1000	1000	CD
37894	204	13	feet	foot	NNS
37894	204	14	away	away	RB
37894	204	15	,	,	,
37894	204	16	nine	nine	CD
37894	204	17	feet	foot	NNS
37894	204	18	;	;	:
37894	204	19	at	at	IN
37894	204	20	one	one	CD
37894	204	21	mile	mile	NN
37894	204	22	,	,	,
37894	204	23	48	48	CD
37894	204	24	feet	foot	NNS
37894	204	25	;	;	:
37894	204	26	at	at	IN
37894	204	27	two	two	CD
37894	204	28	miles	mile	NNS
37894	204	29	,	,	,
37894	204	30	95	95	CD
37894	204	31	feet	foot	NNS
37894	204	32	.	.	.
37894	205	1	Estimating	estimate	VBG
37894	205	2	the	the	DT
37894	205	3	effective	effective	JJ
37894	205	4	length	length	NN
37894	205	5	of	of	IN
37894	205	6	the	the	DT
37894	205	7	field	field	NN
37894	205	8	of	of	IN
37894	205	9	observation	observation	NN
37894	205	10	presents	present	VBZ
37894	205	11	more	more	RBR
37894	205	12	formidable	formidable	JJ
37894	205	13	difficulties	difficulty	NNS
37894	205	14	,	,	,
37894	205	15	aggravated	aggravate	VBN
37894	205	16	by	by	IN
37894	205	17	the	the	DT
37894	205	18	fact	fact	NN
37894	205	19	that	that	IN
37894	205	20	the	the	DT
37894	205	21	lunar	lunar	JJ
37894	205	22	base	base	NN
37894	205	23	of	of	IN
37894	205	24	the	the	DT
37894	205	25	Great	Great	NNP
37894	205	26	Cone	Cone	NNP
37894	205	27	does	do	VBZ
37894	205	28	not	not	RB
37894	205	29	remain	remain	VB
37894	205	30	stationary	stationary	JJ
37894	205	31	.	.	.
37894	206	1	The	the	DT
37894	206	2	moon	moon	NN
37894	206	3	rises	rise	VBZ
37894	206	4	in	in	IN
37894	206	5	the	the	DT
37894	206	6	general	general	JJ
37894	206	7	direction	direction	NN
37894	206	8	of	of	IN
37894	206	9	east	east	NN
37894	206	10	and	and	CC
37894	206	11	sets	set	NNS
37894	206	12	somewhere	somewhere	RB
37894	206	13	in	in	IN
37894	206	14	the	the	DT
37894	206	15	west	west	NN
37894	206	16	,	,	,
37894	206	17	the	the	DT
37894	206	18	exact	exact	JJ
37894	206	19	points	point	NNS
37894	206	20	where	where	WRB
37894	206	21	it	-PRON-	PRP
37894	206	22	appears	appear	VBZ
37894	206	23	and	and	CC
37894	206	24	disappears	disappear	VBZ
37894	206	25	on	on	IN
37894	206	26	the	the	DT
37894	206	27	horizon	horizon	NN
37894	206	28	varying	vary	VBG
37894	206	29	somewhat	somewhat	RB
37894	206	30	throughout	throughout	IN
37894	206	31	the	the	DT
37894	206	32	year	year	NN
37894	206	33	.	.	.
37894	207	1	As	as	IN
37894	207	2	it	-PRON-	PRP
37894	207	3	drifts	drift	VBZ
37894	207	4	across	across	IN
37894	207	5	the	the	DT
37894	207	6	sky	sky	NN
37894	207	7	it	-PRON-	PRP
37894	207	8	carries	carry	VBZ
37894	207	9	the	the	DT
37894	207	10	cone	cone	NN
37894	207	11	of	of	IN
37894	207	12	observation	observation	NN
37894	207	13	with	with	IN
37894	207	14	it	-PRON-	PRP
37894	207	15	like	like	IN
37894	207	16	the	the	DT
37894	207	17	slim	slim	JJ
37894	207	18	beam	beam	NN
37894	207	19	of	of	IN
37894	207	20	an	an	DT
37894	207	21	immense	immense	JJ
37894	207	22	searchlight	searchlight	NN
37894	207	23	slowly	slowly	RB
37894	207	24	probing	probe	VBG
37894	207	25	space	space	NN
37894	207	26	.	.	.
37894	208	1	This	this	DT
37894	208	2	situation	situation	NN
37894	208	3	is	be	VBZ
37894	208	4	ideal	ideal	JJ
37894	208	5	for	for	IN
37894	208	6	the	the	DT
37894	208	7	purpose	purpose	NN
37894	208	8	of	of	IN
37894	208	9	obtaining	obtain	VBG
37894	208	10	a	a	DT
37894	208	11	random	random	JJ
37894	208	12	sample	sample	NN
37894	208	13	of	of	IN
37894	208	14	the	the	DT
37894	208	15	number	number	NN
37894	208	16	of	of	IN
37894	208	17	birds	bird	NNS
37894	208	18	flying	fly	VBG
37894	208	19	out	out	RB
37894	208	20	in	in	IN
37894	208	21	the	the	DT
37894	208	22	darkness	darkness	NN
37894	208	23	,	,	,
37894	208	24	yet	yet	CC
37894	208	25	it	-PRON-	PRP
37894	208	26	involves	involve	VBZ
37894	208	27	great	great	JJ
37894	208	28	complications	complication	NNS
37894	208	29	;	;	:
37894	208	30	for	for	IN
37894	208	31	the	the	DT
37894	208	32	size	size	NN
37894	208	33	of	of	IN
37894	208	34	the	the	DT
37894	208	35	sample	sample	NN
37894	208	36	is	be	VBZ
37894	208	37	never	never	RB
37894	208	38	at	at	IN
37894	208	39	two	two	CD
37894	208	40	consecutive	consecutive	JJ
37894	208	41	instants	instant	NNS
37894	208	42	the	the	DT
37894	208	43	same	same	JJ
37894	208	44	.	.	.
37894	209	1	The	the	DT
37894	209	2	nearer	nearer	NN
37894	209	3	the	the	DT
37894	209	4	ever	ever	RB
37894	209	5	-	-	HYPH
37894	209	6	moving	move	VBG
37894	209	7	great	great	JJ
37894	209	8	cone	cone	NN
37894	209	9	of	of	IN
37894	209	10	the	the	DT
37894	209	11	moon	moon	NN
37894	209	12	moves	move	VBZ
37894	209	13	toward	toward	IN
37894	209	14	a	a	DT
37894	209	15	vertical	vertical	JJ
37894	209	16	position	position	NN
37894	209	17	,	,	,
37894	209	18	the	the	DT
37894	209	19	nearer	nearer	NN
37894	209	20	its	-PRON-	PRP$
37894	209	21	intersection	intersection	NN
37894	209	22	with	with	IN
37894	209	23	the	the	DT
37894	209	24	flight	flight	NN
37894	209	25	ceiling	ceiling	NN
37894	209	26	approaches	approach	VBZ
37894	209	27	the	the	DT
37894	209	28	observer	observer	NN
37894	209	29	,	,	,
37894	209	30	shortening	shortening	NN
37894	209	31	,	,	,
37894	209	32	therefore	therefore	RB
37894	209	33	,	,	,
37894	209	34	the	the	DT
37894	209	35	cone	cone	NN
37894	209	36	of	of	IN
37894	209	37	observation	observation	NN
37894	209	38	(	(	-LRB-
37894	209	39	Figure	Figure	NNP
37894	209	40	3	3	CD
37894	209	41	)	)	-RRB-
37894	209	42	.	.	.
37894	210	1	The	the	DT
37894	210	2	effect	effect	NN
37894	210	3	on	on	IN
37894	210	4	the	the	DT
37894	210	5	number	number	NN
37894	210	6	of	of	IN
37894	210	7	birds	bird	NNS
37894	210	8	seen	see	VBN
37894	210	9	is	be	VBZ
37894	210	10	profound	profound	JJ
37894	210	11	.	.	.
37894	211	1	In	in	IN
37894	211	2	extreme	extreme	JJ
37894	211	3	instances	instance	NNS
37894	211	4	it	-PRON-	PRP
37894	211	5	may	may	MD
37894	211	6	completely	completely	RB
37894	211	7	reverse	reverse	VB
37894	211	8	the	the	DT
37894	211	9	meaning	meaning	NN
37894	211	10	of	of	IN
37894	211	11	counts	count	NNS
37894	211	12	.	.	.
37894	212	1	Under	under	IN
37894	212	2	the	the	DT
37894	212	3	conditions	condition	NNS
37894	212	4	visualized	visualize	VBN
37894	212	5	in	in	IN
37894	212	6	Figure	Figure	NNP
37894	212	7	3	3	CD
37894	212	8	,	,	,
37894	212	9	the	the	DT
37894	212	10	field	field	NN
37894	212	11	of	of	IN
37894	212	12	observation	observation	NN
37894	212	13	at	at	IN
37894	212	14	midnight	midnight	NN
37894	212	15	is	be	VBZ
37894	212	16	only	only	RB
37894	212	17	one	one	CD
37894	212	18	-	-	HYPH
37894	212	19	fourth	fourth	RB
37894	212	20	as	as	RB
37894	212	21	large	large	JJ
37894	212	22	as	as	IN
37894	212	23	the	the	DT
37894	212	24	field	field	NN
37894	212	25	of	of	IN
37894	212	26	observation	observation	NN
37894	212	27	earlier	early	RBR
37894	212	28	in	in	IN
37894	212	29	the	the	DT
37894	212	30	evening	evening	NN
37894	212	31	.	.	.
37894	213	1	Thus	thus	RB
37894	213	2	the	the	DT
37894	213	3	twenty	twenty	CD
37894	213	4	-	-	HYPH
37894	213	5	four	four	CD
37894	213	6	birds	bird	NNS
37894	213	7	seen	see	VBN
37894	213	8	from	from	IN
37894	213	9	7	7	CD
37894	213	10	to	to	TO
37894	213	11	8	8	CD
37894	213	12	P.	P.	NNP
37894	213	13	M.	M.	NNP
37894	213	14	,	,	,
37894	213	15	represent	represent	VBP
37894	213	16	not	not	RB
37894	213	17	twice	twice	RB
37894	213	18	as	as	RB
37894	213	19	many	many	JJ
37894	213	20	birds	bird	NNS
37894	213	21	actually	actually	RB
37894	213	22	flying	fly	VBG
37894	213	23	per	per	IN
37894	213	24	unit	unit	NN
37894	213	25	of	of	IN
37894	213	26	space	space	NN
37894	213	27	as	as	IN
37894	213	28	the	the	DT
37894	213	29	twelve	twelve	NN
37894	213	30	observed	observe	VBD
37894	213	31	from	from	IN
37894	213	32	11:30	11:30	CD
37894	213	33	to	to	IN
37894	213	34	12:30	12:30	CD
37894	213	35	A.	a.	NN
37894	213	36	M.	M.	NNP
37894	213	37	,	,	,
37894	213	38	but	but	CC
37894	213	39	only	only	RB
37894	213	40	half	half	PDT
37894	213	41	the	the	DT
37894	213	42	amount	amount	NN
37894	213	43	.	.	.
37894	214	1	Figure	figure	NN
37894	214	2	4	4	CD
37894	214	3	,	,	,
37894	214	4	based	base	VBN
37894	214	5	on	on	IN
37894	214	6	observations	observation	NNS
37894	214	7	at	at	IN
37894	214	8	Ottumwa	Ottumwa	NNP
37894	214	9	,	,	,
37894	214	10	Iowa	Iowa	NNP
37894	214	11	,	,	,
37894	214	12	on	on	IN
37894	214	13	the	the	DT
37894	214	14	night	night	NN
37894	214	15	of	of	IN
37894	214	16	May	May	NNP
37894	214	17	22	22	CD
37894	214	18	-	-	SYM
37894	214	19	23	23	CD
37894	214	20	,	,	,
37894	214	21	shows	show	VBZ
37894	214	22	a	a	DT
37894	214	23	similar	similar	JJ
37894	214	24	effect	effect	NN
37894	214	25	graphically	graphically	RB
37894	214	26	.	.	.
37894	215	1	Curve	curve	NN
37894	215	2	A	a	NN
37894	215	3	represents	represent	VBZ
37894	215	4	the	the	DT
37894	215	5	actual	actual	JJ
37894	215	6	numbers	number	NNS
37894	215	7	of	of	IN
37894	215	8	birds	bird	NNS
37894	215	9	per	per	IN
37894	215	10	hour	hour	NN
37894	215	11	seen	see	VBN
37894	215	12	;	;	:
37894	215	13	Curve	curve	NN
37894	215	14	B	b	NN
37894	215	15	shows	show	VBZ
37894	215	16	the	the	DT
37894	215	17	same	same	JJ
37894	215	18	figures	figure	NNS
37894	215	19	expressed	express	VBD
37894	215	20	as	as	IN
37894	215	21	flight	flight	NN
37894	215	22	densities	density	NNS
37894	215	23	,	,	,
37894	215	24	that	that	RB
37894	215	25	is	is	RB
37894	215	26	,	,	,
37894	215	27	corrected	correct	VBN
37894	215	28	to	to	TO
37894	215	29	take	take	VB
37894	215	30	into	into	IN
37894	215	31	account	account	NN
37894	215	32	the	the	DT
37894	215	33	changing	change	VBG
37894	215	34	size	size	NN
37894	215	35	of	of	IN
37894	215	36	the	the	DT
37894	215	37	field	field	NN
37894	215	38	of	of	IN
37894	215	39	observation	observation	NN
37894	215	40	.	.	.
37894	216	1	It	-PRON-	PRP
37894	216	2	will	will	MD
37894	216	3	be	be	VB
37894	216	4	noted	note	VBN
37894	216	5	that	that	IN
37894	216	6	the	the	DT
37894	216	7	trends	trend	NNS
37894	216	8	are	be	VBP
37894	216	9	almost	almost	RB
37894	216	10	exactly	exactly	RB
37894	216	11	opposite	opposite	JJ
37894	216	12	.	.	.
37894	217	1	While	while	IN
37894	217	2	A	a	DT
37894	217	3	descends	descend	NNS
37894	217	4	,	,	,
37894	217	5	B	b	NN
37894	217	6	rises	rise	VBZ
37894	217	7	,	,	,
37894	217	8	and	and	CC
37894	217	9	_	_	NNP
37894	217	10	vice	vice	NN
37894	217	11	-	-	HYPH
37894	217	12	versa	versa	JJ
37894	217	13	_	_	NNP
37894	217	14	.	.	.
37894	218	1	In	in	IN
37894	218	2	this	this	DT
37894	218	3	case	case	NN
37894	218	4	,	,	,
37894	218	5	inferences	inference	NNS
37894	218	6	drawn	draw	VBN
37894	218	7	from	from	IN
37894	218	8	the	the	DT
37894	218	9	unprocessed	unprocessed	JJ
37894	218	10	data	data	NN
37894	218	11	lead	lead	NN
37894	218	12	to	to	IN
37894	218	13	a	a	DT
37894	218	14	complete	complete	JJ
37894	218	15	misinterpretation	misinterpretation	NN
37894	218	16	of	of	IN
37894	218	17	the	the	DT
37894	218	18	real	real	JJ
37894	218	19	situation	situation	NN
37894	218	20	.	.	.
37894	219	1	[	[	-LRB-
37894	219	2	Illustration	illustration	NN
37894	219	3	:	:	:
37894	219	4	FIG	FIG	NNP
37894	219	5	.	.	.
37894	220	1	3	3	LS
37894	220	2	.	.	.
37894	221	1	Temporal	temporal	JJ
37894	221	2	change	change	NN
37894	221	3	in	in	IN
37894	221	4	the	the	DT
37894	221	5	effective	effective	JJ
37894	221	6	size	size	NN
37894	221	7	of	of	IN
37894	221	8	the	the	DT
37894	221	9	field	field	NN
37894	221	10	of	of	IN
37894	221	11	observation	observation	NN
37894	221	12	.	.	.
37894	222	1	The	the	DT
37894	222	2	sample	sample	NN
37894	222	3	sections	section	NNS
37894	222	4	,	,	,
37894	222	5	A	a	NN
37894	222	6	and	and	CC
37894	222	7	B	b	NN
37894	222	8	,	,	,
37894	222	9	represent	represent	VB
37894	222	10	the	the	DT
37894	222	11	theoretical	theoretical	JJ
37894	222	12	densities	density	NNS
37894	222	13	of	of	IN
37894	222	14	flight	flight	NN
37894	222	15	at	at	IN
37894	222	16	8:20	8:20	CD
37894	222	17	and	and	CC
37894	222	18	12:00	12:00	CD
37894	222	19	P.	P.	NNP
37894	222	20	M.	M.	NNP
37894	222	21	,	,	,
37894	222	22	respectively	respectively	RB
37894	222	23	.	.	.
37894	223	1	Though	though	IN
37894	223	2	twice	twice	RB
37894	223	3	as	as	RB
37894	223	4	many	many	JJ
37894	223	5	birds	bird	NNS
37894	223	6	are	be	VBP
37894	223	7	assumed	assume	VBN
37894	223	8	to	to	TO
37894	223	9	be	be	VB
37894	223	10	in	in	IN
37894	223	11	the	the	DT
37894	223	12	air	air	NN
37894	223	13	at	at	IN
37894	223	14	midnight	midnight	NN
37894	223	15	when	when	WRB
37894	223	16	the	the	DT
37894	223	17	moon	moon	NN
37894	223	18	is	be	VBZ
37894	223	19	on	on	IN
37894	223	20	its	-PRON-	PRP$
37894	223	21	zenith	zenith	NN
37894	223	22	(	(	-LRB-
37894	223	23	Z	Z	NNP
37894	223	24	)	)	-RRB-
37894	223	25	as	as	IN
37894	223	26	there	there	EX
37894	223	27	were	be	VBD
37894	223	28	at	at	IN
37894	223	29	the	the	DT
37894	223	30	earlier	early	JJR
37894	223	31	hour	hour	NN
37894	223	32	,	,	,
37894	223	33	only	only	RB
37894	223	34	half	half	NN
37894	223	35	as	as	RB
37894	223	36	many	many	JJ
37894	223	37	are	be	VBP
37894	223	38	visible	visible	JJ
37894	223	39	because	because	IN
37894	223	40	of	of	IN
37894	223	41	the	the	DT
37894	223	42	decrease	decrease	NN
37894	223	43	in	in	IN
37894	223	44	size	size	NN
37894	223	45	of	of	IN
37894	223	46	the	the	DT
37894	223	47	cone	cone	NN
37894	223	48	of	of	IN
37894	223	49	observation	observation	NN
37894	223	50	.	.	.
37894	223	51	]	]	-RRB-
37894	224	1	[	[	-LRB-
37894	224	2	Illustration	illustration	NN
37894	224	3	:	:	:
37894	224	4	FIG	FIG	NNP
37894	224	5	.	.	.
37894	225	1	4	4	LS
37894	225	2	.	.	.
37894	226	1	Migration	migration	NN
37894	226	2	at	at	IN
37894	226	3	Ottumwa	Ottumwa	NNP
37894	226	4	,	,	,
37894	226	5	Iowa	Iowa	NNP
37894	226	6	,	,	,
37894	226	7	on	on	IN
37894	226	8	the	the	DT
37894	226	9	night	night	NN
37894	226	10	of	of	IN
37894	226	11	May	May	NNP
37894	226	12	22	22	CD
37894	226	13	-	-	SYM
37894	226	14	23	23	CD
37894	226	15	,	,	,
37894	226	16	1948	1948	CD
37894	226	17	.	.	.
37894	227	1	Curve	curve	NN
37894	227	2	A	a	NN
37894	227	3	is	be	VBZ
37894	227	4	a	a	DT
37894	227	5	graphic	graphic	JJ
37894	227	6	representation	representation	NN
37894	227	7	of	of	IN
37894	227	8	the	the	DT
37894	227	9	actual	actual	JJ
37894	227	10	numbers	number	NNS
37894	227	11	of	of	IN
37894	227	12	birds	bird	NNS
37894	227	13	seen	see	VBN
37894	227	14	hourly	hourly	RB
37894	227	15	through	through	IN
37894	227	16	the	the	DT
37894	227	17	telescope	telescope	NN
37894	227	18	.	.	.
37894	228	1	Curve	curve	NN
37894	228	2	B	B	NNP
37894	228	3	represents	represent	VBZ
37894	228	4	the	the	DT
37894	228	5	same	same	JJ
37894	228	6	figures	figure	NNS
37894	228	7	corrected	correct	VBN
37894	228	8	for	for	IN
37894	228	9	the	the	DT
37894	228	10	variation	variation	NN
37894	228	11	in	in	IN
37894	228	12	the	the	DT
37894	228	13	size	size	NN
37894	228	14	of	of	IN
37894	228	15	the	the	DT
37894	228	16	cone	cone	NN
37894	228	17	of	of	IN
37894	228	18	observation	observation	NN
37894	228	19	.	.	.
37894	229	1	The	the	DT
37894	229	2	dissimilarity	dissimilarity	NN
37894	229	3	in	in	IN
37894	229	4	the	the	DT
37894	229	5	two	two	CD
37894	229	6	curves	curve	NNS
37894	229	7	illustrates	illustrate	VBZ
37894	229	8	the	the	DT
37894	229	9	deceptive	deceptive	JJ
37894	229	10	nature	nature	NN
37894	229	11	of	of	IN
37894	229	12	untreated	untreated	JJ
37894	229	13	telescopic	telescopic	NN
37894	229	14	counts	count	NNS
37894	229	15	.	.	.
37894	229	16	]	]	-RRB-
37894	230	1	Nor	nor	CC
37894	230	2	does	do	VBZ
37894	230	3	the	the	DT
37894	230	4	moon	moon	NN
37894	230	5	suit	suit	VB
37894	230	6	our	-PRON-	PRP$
37894	230	7	convenience	convenience	NN
37894	230	8	by	by	IN
37894	230	9	behaving	behaving	NN
37894	230	10	night	night	NN
37894	230	11	after	after	IN
37894	230	12	night	night	NN
37894	230	13	in	in	IN
37894	230	14	the	the	DT
37894	230	15	same	same	JJ
37894	230	16	way	way	NN
37894	230	17	.	.	.
37894	231	1	On	on	IN
37894	231	2	one	one	CD
37894	231	3	date	date	NN
37894	231	4	we	-PRON-	PRP
37894	231	5	may	may	MD
37894	231	6	find	find	VB
37894	231	7	it	-PRON-	PRP
37894	231	8	high	high	JJ
37894	231	9	in	in	IN
37894	231	10	the	the	DT
37894	231	11	sky	sky	NN
37894	231	12	between	between	IN
37894	231	13	9	9	CD
37894	231	14	and	and	CC
37894	231	15	10	10	CD
37894	231	16	P.	P.	NNP
37894	231	17	M.	M.	NNP
37894	231	18	;	;	:
37894	231	19	on	on	IN
37894	231	20	another	another	DT
37894	231	21	date	date	NN
37894	231	22	,	,	,
37894	231	23	during	during	IN
37894	231	24	the	the	DT
37894	231	25	same	same	JJ
37894	231	26	interval	interval	NN
37894	231	27	of	of	IN
37894	231	28	time	time	NN
37894	231	29	,	,	,
37894	231	30	it	-PRON-	PRP
37894	231	31	may	may	MD
37894	231	32	be	be	VB
37894	231	33	near	near	IN
37894	231	34	the	the	DT
37894	231	35	horizon	horizon	NN
37894	231	36	.	.	.
37894	232	1	Consequently	consequently	RB
37894	232	2	,	,	,
37894	232	3	the	the	DT
37894	232	4	size	size	NN
37894	232	5	of	of	IN
37894	232	6	the	the	DT
37894	232	7	cone	cone	NN
37894	232	8	is	be	VBZ
37894	232	9	different	different	JJ
37894	232	10	in	in	IN
37894	232	11	each	each	DT
37894	232	12	case	case	NN
37894	232	13	,	,	,
37894	232	14	and	and	CC
37894	232	15	the	the	DT
37894	232	16	direct	direct	JJ
37894	232	17	comparison	comparison	NN
37894	232	18	of	of	IN
37894	232	19	flights	flight	NNS
37894	232	20	in	in	IN
37894	232	21	the	the	DT
37894	232	22	same	same	JJ
37894	232	23	hour	hour	NN
37894	232	24	on	on	IN
37894	232	25	different	different	JJ
37894	232	26	dates	date	NNS
37894	232	27	is	be	VBZ
37894	232	28	no	no	DT
37894	232	29	more	more	RBR
37894	232	30	dependable	dependable	JJ
37894	232	31	than	than	IN
37894	232	32	the	the	DT
37894	232	33	misleading	misleading	JJ
37894	232	34	comparisons	comparison	NNS
37894	232	35	discussed	discuss	VBN
37894	232	36	in	in	IN
37894	232	37	the	the	DT
37894	232	38	preceding	precede	VBG
37894	232	39	paragraph	paragraph	NN
37894	232	40	.	.	.
37894	233	1	The	the	DT
37894	233	2	changes	change	NNS
37894	233	3	in	in	IN
37894	233	4	the	the	DT
37894	233	5	size	size	NN
37894	233	6	of	of	IN
37894	233	7	the	the	DT
37894	233	8	cone	cone	NN
37894	233	9	have	have	VBP
37894	233	10	been	be	VBN
37894	233	11	illustrated	illustrate	VBN
37894	233	12	in	in	IN
37894	233	13	Figure	Figure	NNP
37894	233	14	3	3	CD
37894	233	15	as	as	IN
37894	233	16	though	though	IN
37894	233	17	the	the	DT
37894	233	18	moon	moon	NN
37894	233	19	were	be	VBD
37894	233	20	traveling	travel	VBG
37894	233	21	in	in	IN
37894	233	22	a	a	DT
37894	233	23	plane	plane	NN
37894	233	24	vertical	vertical	JJ
37894	233	25	to	to	IN
37894	233	26	the	the	DT
37894	233	27	earth	earth	NN
37894	233	28	's	's	POS
37894	233	29	surface	surface	NN
37894	233	30	,	,	,
37894	233	31	as	as	IN
37894	233	32	though	though	IN
37894	233	33	it	-PRON-	PRP
37894	233	34	reached	reach	VBD
37894	233	35	a	a	DT
37894	233	36	point	point	NN
37894	233	37	directly	directly	RB
37894	233	38	over	over	IN
37894	233	39	the	the	DT
37894	233	40	observer	observer	NN
37894	233	41	's	's	POS
37894	233	42	head	head	NN
37894	233	43	.	.	.
37894	234	1	In	in	IN
37894	234	2	practice	practice	NN
37894	234	3	this	this	DT
37894	234	4	least	least	RBS
37894	234	5	complicated	complicated	JJ
37894	234	6	condition	condition	NN
37894	234	7	seldom	seldom	RB
37894	234	8	obtains	obtain	NNS
37894	234	9	in	in	IN
37894	234	10	the	the	DT
37894	234	11	regions	region	NNS
37894	234	12	concerned	concern	VBN
37894	234	13	in	in	IN
37894	234	14	this	this	DT
37894	234	15	study	study	NN
37894	234	16	.	.	.
37894	235	1	In	in	IN
37894	235	2	most	most	JJS
37894	235	3	of	of	IN
37894	235	4	the	the	DT
37894	235	5	northern	northern	JJ
37894	235	6	hemisphere	hemisphere	NN
37894	235	7	,	,	,
37894	235	8	the	the	DT
37894	235	9	path	path	NN
37894	235	10	of	of	IN
37894	235	11	the	the	DT
37894	235	12	moon	moon	NN
37894	235	13	lies	lie	VBZ
37894	235	14	south	south	RB
37894	235	15	of	of	IN
37894	235	16	the	the	DT
37894	235	17	observer	observer	NN
37894	235	18	so	so	IN
37894	235	19	that	that	IN
37894	235	20	the	the	DT
37894	235	21	cone	cone	NN
37894	235	22	is	be	VBZ
37894	235	23	tilted	tilt	VBN
37894	235	24	away	away	RB
37894	235	25	from	from	IN
37894	235	26	the	the	DT
37894	235	27	vertical	vertical	JJ
37894	235	28	plane	plane	NN
37894	235	29	erected	erect	VBN
37894	235	30	on	on	IN
37894	235	31	the	the	DT
37894	235	32	parallel	parallel	NN
37894	235	33	of	of	IN
37894	235	34	latitude	latitude	NN
37894	235	35	where	where	WRB
37894	235	36	the	the	DT
37894	235	37	observer	observer	NN
37894	235	38	is	be	VBZ
37894	235	39	standing	stand	VBG
37894	235	40	.	.	.
37894	236	1	In	in	IN
37894	236	2	other	other	JJ
37894	236	3	words	word	NNS
37894	236	4	it	-PRON-	PRP
37894	236	5	never	never	RB
37894	236	6	reaches	reach	VBZ
37894	236	7	the	the	DT
37894	236	8	zenith	zenith	NN
37894	236	9	,	,	,
37894	236	10	a	a	DT
37894	236	11	point	point	NN
37894	236	12	directly	directly	RB
37894	236	13	overhead	overhead	RB
37894	236	14	.	.	.
37894	237	1	The	the	DT
37894	237	2	farther	farth	JJR
37894	237	3	north	north	NN
37894	237	4	we	-PRON-	PRP
37894	237	5	go	go	VBP
37894	237	6	,	,	,
37894	237	7	the	the	DT
37894	237	8	lower	low	JJR
37894	237	9	the	the	DT
37894	237	10	moon	moon	NN
37894	237	11	drops	drop	VBZ
37894	237	12	toward	toward	IN
37894	237	13	the	the	DT
37894	237	14	horizon	horizon	NN
37894	237	15	and	and	CC
37894	237	16	the	the	DT
37894	237	17	more	more	RBR
37894	237	18	,	,	,
37894	237	19	therefore	therefore	RB
37894	237	20	,	,	,
37894	237	21	the	the	DT
37894	237	22	cone	cone	NN
37894	237	23	of	of	IN
37894	237	24	observation	observation	NN
37894	237	25	leans	lean	VBZ
37894	237	26	away	away	RB
37894	237	27	from	from	IN
37894	237	28	us	-PRON-	PRP
37894	237	29	.	.	.
37894	238	1	Hence	hence	RB
37894	238	2	,	,	,
37894	238	3	at	at	IN
37894	238	4	the	the	DT
37894	238	5	same	same	JJ
37894	238	6	moment	moment	NN
37894	238	7	,	,	,
37894	238	8	stationed	station	VBN
37894	238	9	on	on	IN
37894	238	10	the	the	DT
37894	238	11	same	same	JJ
37894	238	12	meridian	meridian	NN
37894	238	13	,	,	,
37894	238	14	two	two	CD
37894	238	15	observers	observer	NNS
37894	238	16	,	,	,
37894	238	17	one	one	CD
37894	238	18	in	in	IN
37894	238	19	the	the	DT
37894	238	20	north	north	NN
37894	238	21	and	and	CC
37894	238	22	one	one	CD
37894	238	23	in	in	IN
37894	238	24	the	the	DT
37894	238	25	south	south	NN
37894	238	26	,	,	,
37894	238	27	will	will	MD
37894	238	28	be	be	VB
37894	238	29	looking	look	VBG
37894	238	30	into	into	IN
37894	238	31	different	different	JJ
37894	238	32	effective	effective	JJ
37894	238	33	volumes	volume	NNS
37894	238	34	of	of	IN
37894	238	35	space	space	NN
37894	238	36	(	(	-LRB-
37894	238	37	Figure	Figure	NNP
37894	238	38	5	5	CD
37894	238	39	)	)	-RRB-
37894	238	40	.	.	.
37894	239	1	[	[	-LRB-
37894	239	2	Illustration	illustration	NN
37894	239	3	:	:	:
37894	239	4	FIG	FIG	NNP
37894	239	5	.	.	.
37894	240	1	5	5	CD
37894	240	2	.	.	.
37894	241	1	Geographical	geographical	JJ
37894	241	2	variation	variation	NN
37894	241	3	in	in	IN
37894	241	4	the	the	DT
37894	241	5	size	size	NN
37894	241	6	of	of	IN
37894	241	7	the	the	DT
37894	241	8	cone	cone	NN
37894	241	9	of	of	IN
37894	241	10	observation	observation	NN
37894	241	11	.	.	.
37894	242	1	The	the	DT
37894	242	2	cones	cone	NNS
37894	242	3	A	a	NN
37894	242	4	and	and	CC
37894	242	5	B	b	NN
37894	242	6	represent	represent	VBP
37894	242	7	the	the	DT
37894	242	8	effective	effective	JJ
37894	242	9	fields	field	NNS
37894	242	10	of	of	IN
37894	242	11	observation	observation	NN
37894	242	12	at	at	IN
37894	242	13	two	two	CD
37894	242	14	stations	station	NNS
37894	242	15	situated	situate	VBN
37894	242	16	over	over	IN
37894	242	17	1,200	1,200	CD
37894	242	18	miles	mile	NNS
37894	242	19	apart	apart	RB
37894	242	20	.	.	.
37894	243	1	The	the	DT
37894	243	2	portions	portion	NNS
37894	243	3	of	of	IN
37894	243	4	the	the	DT
37894	243	5	great	great	JJ
37894	243	6	cones	cone	NNS
37894	243	7	included	include	VBN
37894	243	8	here	here	RB
37894	243	9	appear	appear	VBP
37894	243	10	nearly	nearly	RB
37894	243	11	parallel	parallel	JJ
37894	243	12	,	,	,
37894	243	13	but	but	CC
37894	243	14	if	if	IN
37894	243	15	extended	extend	VBN
37894	243	16	far	far	RB
37894	243	17	enough	enough	RB
37894	243	18	would	would	MD
37894	243	19	be	be	VB
37894	243	20	found	find	VBN
37894	243	21	to	to	TO
37894	243	22	have	have	VB
37894	243	23	a	a	DT
37894	243	24	common	common	JJ
37894	243	25	base	base	NN
37894	243	26	on	on	IN
37894	243	27	the	the	DT
37894	243	28	moon	moon	NN
37894	243	29	.	.	.
37894	244	1	Because	because	IN
37894	244	2	of	of	IN
37894	244	3	the	the	DT
37894	244	4	continental	continental	JJ
37894	244	5	scale	scale	NN
37894	244	6	of	of	IN
37894	244	7	the	the	DT
37894	244	8	drawing	drawing	NN
37894	244	9	,	,	,
37894	244	10	the	the	DT
37894	244	11	flight	flight	NN
37894	244	12	ceiling	ceiling	NN
37894	244	13	appears	appear	VBZ
37894	244	14	as	as	IN
37894	244	15	a	a	DT
37894	244	16	curved	curved	JJ
37894	244	17	surface	surface	NN
37894	244	18	,	,	,
37894	244	19	equidistant	equidistant	NN
37894	244	20	above	above	IN
37894	244	21	each	each	DT
37894	244	22	station	station	NN
37894	244	23	.	.	.
37894	245	1	The	the	DT
37894	245	2	lines	line	NNS
37894	245	3	to	to	IN
37894	245	4	the	the	DT
37894	245	5	zenith	zenith	NN
37894	245	6	appear	appear	VBP
37894	245	7	to	to	TO
37894	245	8	diverge	diverge	VB
37894	245	9	,	,	,
37894	245	10	but	but	CC
37894	245	11	they	-PRON-	PRP
37894	245	12	are	be	VBP
37894	245	13	both	both	DT
37894	245	14	perpendicular	perpendicular	JJ
37894	245	15	to	to	IN
37894	245	16	the	the	DT
37894	245	17	earth	earth	NN
37894	245	18	.	.	.
37894	246	1	Although	although	IN
37894	246	2	the	the	DT
37894	246	3	cones	cone	NNS
37894	246	4	are	be	VBP
37894	246	5	shown	show	VBN
37894	246	6	at	at	IN
37894	246	7	the	the	DT
37894	246	8	same	same	JJ
37894	246	9	instant	instant	NN
37894	246	10	in	in	IN
37894	246	11	time	time	NN
37894	246	12	,	,	,
37894	246	13	and	and	CC
37894	246	14	have	have	VBP
37894	246	15	their	-PRON-	PRP$
37894	246	16	origin	origin	NN
37894	246	17	on	on	IN
37894	246	18	the	the	DT
37894	246	19	same	same	JJ
37894	246	20	meridian	meridian	NN
37894	246	21	,	,	,
37894	246	22	the	the	DT
37894	246	23	dimensions	dimension	NNS
37894	246	24	of	of	IN
37894	246	25	B	b	NN
37894	246	26	are	be	VBP
37894	246	27	less	less	JJR
37894	246	28	than	than	IN
37894	246	29	one	one	CD
37894	246	30	-	-	HYPH
37894	246	31	half	half	NN
37894	246	32	as	as	RB
37894	246	33	great	great	JJ
37894	246	34	as	as	IN
37894	246	35	those	those	DT
37894	246	36	of	of	IN
37894	246	37	A	a	DT
37894	246	38	,	,	,
37894	246	39	thus	thus	RB
37894	246	40	materially	materially	RB
37894	246	41	decreasing	decrease	VBG
37894	246	42	the	the	DT
37894	246	43	opportunity	opportunity	NN
37894	246	44	to	to	TO
37894	246	45	see	see	VB
37894	246	46	birds	bird	NNS
37894	246	47	at	at	IN
37894	246	48	the	the	DT
37894	246	49	former	former	JJ
37894	246	50	station	station	NN
37894	246	51	.	.	.
37894	247	1	This	this	DT
37894	247	2	effect	effect	NN
37894	247	3	results	result	VBZ
37894	247	4	from	from	IN
37894	247	5	the	the	DT
37894	247	6	different	different	JJ
37894	247	7	slants	slant	NNS
37894	247	8	at	at	IN
37894	247	9	which	which	WDT
37894	247	10	the	the	DT
37894	247	11	zenith	zenith	NN
37894	247	12	distances	distance	NNS
37894	247	13	cause	cause	VBP
37894	247	14	the	the	DT
37894	247	15	cones	cone	NNS
37894	247	16	to	to	TO
37894	247	17	intersect	intersect	VB
37894	247	18	the	the	DT
37894	247	19	flight	flight	NN
37894	247	20	ceiling	ceiling	NN
37894	247	21	.	.	.
37894	248	1	The	the	DT
37894	248	2	diagram	diagram	NN
37894	248	3	illustrates	illustrate	VBZ
37894	248	4	the	the	DT
37894	248	5	principle	principle	NN
37894	248	6	that	that	IN
37894	248	7	northern	northern	JJ
37894	248	8	stations	station	NNS
37894	248	9	,	,	,
37894	248	10	on	on	IN
37894	248	11	the	the	DT
37894	248	12	average	average	NN
37894	248	13	,	,	,
37894	248	14	have	have	VBP
37894	248	15	a	a	DT
37894	248	16	better	well	JJR
37894	248	17	chance	chance	NN
37894	248	18	to	to	TO
37894	248	19	see	see	VB
37894	248	20	birds	bird	NNS
37894	248	21	passing	pass	VBG
37894	248	22	in	in	IN
37894	248	23	their	-PRON-	PRP$
37894	248	24	vicinity	vicinity	NN
37894	248	25	than	than	IN
37894	248	26	do	do	VB
37894	248	27	southern	southern	JJ
37894	248	28	stations	station	NNS
37894	248	29	.	.	.
37894	248	30	]	]	-RRB-
37894	249	1	As	as	IN
37894	249	2	a	a	DT
37894	249	3	further	further	JJ
37894	249	4	result	result	NN
37894	249	5	of	of	IN
37894	249	6	its	-PRON-	PRP$
37894	249	7	inclination	inclination	NN
37894	249	8	,	,	,
37894	249	9	the	the	DT
37894	249	10	cone	cone	NN
37894	249	11	of	of	IN
37894	249	12	observation	observation	NN
37894	249	13	,	,	,
37894	249	14	seldom	seldom	RB
37894	249	15	affords	afford	VBZ
37894	249	16	an	an	DT
37894	249	17	equal	equal	JJ
37894	249	18	opportunity	opportunity	NN
37894	249	19	of	of	IN
37894	249	20	recording	record	VBG
37894	249	21	birds	bird	NNS
37894	249	22	that	that	WDT
37894	249	23	are	be	VBP
37894	249	24	flying	fly	VBG
37894	249	25	in	in	IN
37894	249	26	two	two	CD
37894	249	27	different	different	JJ
37894	249	28	directions	direction	NNS
37894	249	29	.	.	.
37894	250	1	This	this	DT
37894	250	2	may	may	MD
37894	250	3	be	be	VB
37894	250	4	most	most	RBS
37894	250	5	easily	easily	RB
37894	250	6	understood	understand	VBN
37894	250	7	by	by	IN
37894	250	8	considering	consider	VBG
37894	250	9	what	what	WP
37894	250	10	happens	happen	VBZ
37894	250	11	on	on	IN
37894	250	12	a	a	DT
37894	250	13	single	single	JJ
37894	250	14	flight	flight	NN
37894	250	15	level	level	NN
37894	250	16	.	.	.
37894	251	1	The	the	DT
37894	251	2	plane	plane	NN
37894	251	3	parallel	parallel	NN
37894	251	4	to	to	IN
37894	251	5	the	the	DT
37894	251	6	earth	earth	NN
37894	251	7	representing	represent	VBG
37894	251	8	any	any	DT
37894	251	9	such	such	JJ
37894	251	10	flight	flight	NN
37894	251	11	level	level	NN
37894	251	12	intersects	intersect	VBZ
37894	251	13	the	the	DT
37894	251	14	slanting	slant	VBG
37894	251	15	cone	cone	NN
37894	251	16	,	,	,
37894	251	17	not	not	RB
37894	251	18	in	in	IN
37894	251	19	a	a	DT
37894	251	20	circle	circle	NN
37894	251	21	,	,	,
37894	251	22	but	but	CC
37894	251	23	in	in	IN
37894	251	24	an	an	DT
37894	251	25	ellipse	ellipse	NN
37894	251	26	.	.	.
37894	252	1	The	the	DT
37894	252	2	proportions	proportion	NNS
37894	252	3	of	of	IN
37894	252	4	this	this	DT
37894	252	5	ellipse	ellipse	NN
37894	252	6	are	be	VBP
37894	252	7	very	very	RB
37894	252	8	variable	variable	JJ
37894	252	9	.	.	.
37894	253	1	When	when	WRB
37894	253	2	the	the	DT
37894	253	3	moon	moon	NN
37894	253	4	is	be	VBZ
37894	253	5	high	high	JJ
37894	253	6	,	,	,
37894	253	7	the	the	DT
37894	253	8	intersection	intersection	NN
37894	253	9	on	on	IN
37894	253	10	the	the	DT
37894	253	11	plane	plane	NN
37894	253	12	is	be	VBZ
37894	253	13	nearly	nearly	RB
37894	253	14	circular	circular	JJ
37894	253	15	;	;	:
37894	253	16	when	when	WRB
37894	253	17	the	the	DT
37894	253	18	moon	moon	NN
37894	253	19	is	be	VBZ
37894	253	20	low	low	JJ
37894	253	21	,	,	,
37894	253	22	the	the	DT
37894	253	23	ellipse	ellipse	NN
37894	253	24	becomes	become	VBZ
37894	253	25	greatly	greatly	RB
37894	253	26	elongated	elongate	VBN
37894	253	27	.	.	.
37894	254	1	Often	often	RB
37894	254	2	the	the	DT
37894	254	3	long	long	JJ
37894	254	4	axis	axi	NNS
37894	254	5	may	may	MD
37894	254	6	be	be	VB
37894	254	7	more	more	JJR
37894	254	8	than	than	IN
37894	254	9	twice	twice	RB
37894	254	10	the	the	DT
37894	254	11	length	length	NN
37894	254	12	of	of	IN
37894	254	13	the	the	DT
37894	254	14	short	short	JJ
37894	254	15	axis	axis	NN
37894	254	16	.	.	.
37894	255	1	It	-PRON-	PRP
37894	255	2	follows	follow	VBZ
37894	255	3	that	that	IN
37894	255	4	,	,	,
37894	255	5	if	if	IN
37894	255	6	the	the	DT
37894	255	7	long	long	JJ
37894	255	8	axis	axis	NN
37894	255	9	happens	happen	VBZ
37894	255	10	to	to	TO
37894	255	11	lie	lie	VB
37894	255	12	athwart	athwart	VB
37894	255	13	the	the	DT
37894	255	14	northward	northward	JJ
37894	255	15	direction	direction	NN
37894	255	16	of	of	IN
37894	255	17	flight	flight	NN
37894	255	18	and	and	CC
37894	255	19	the	the	DT
37894	255	20	short	short	JJ
37894	255	21	axis	axi	NNS
37894	255	22	across	across	IN
37894	255	23	the	the	DT
37894	255	24	eastward	eastward	JJ
37894	255	25	direction	direction	NN
37894	255	26	,	,	,
37894	255	27	we	-PRON-	PRP
37894	255	28	will	will	MD
37894	255	29	get	get	VB
37894	255	30	on	on	IN
37894	255	31	the	the	DT
37894	255	32	average	average	NN
37894	255	33	over	over	RB
37894	255	34	twice	twice	RB
37894	255	35	as	as	RB
37894	255	36	large	large	JJ
37894	255	37	a	a	DT
37894	255	38	sample	sample	NN
37894	255	39	of	of	IN
37894	255	40	birds	bird	NNS
37894	255	41	flying	fly	VBG
37894	255	42	toward	toward	IN
37894	255	43	the	the	DT
37894	255	44	north	north	NN
37894	255	45	as	as	IN
37894	255	46	of	of	IN
37894	255	47	birds	bird	NNS
37894	255	48	flying	fly	VBG
37894	255	49	toward	toward	IN
37894	255	50	the	the	DT
37894	255	51	east	east	NNP
37894	255	52	.	.	.
37894	256	1	In	in	IN
37894	256	2	summary	summary	NN
37894	256	3	,	,	,
37894	256	4	whether	whether	IN
37894	256	5	we	-PRON-	PRP
37894	256	6	wish	wish	VBP
37894	256	7	to	to	TO
37894	256	8	compare	compare	VB
37894	256	9	different	different	JJ
37894	256	10	stations	station	NNS
37894	256	11	,	,	,
37894	256	12	different	different	JJ
37894	256	13	hours	hour	NNS
37894	256	14	of	of	IN
37894	256	15	the	the	DT
37894	256	16	night	night	NN
37894	256	17	,	,	,
37894	256	18	or	or	CC
37894	256	19	different	different	JJ
37894	256	20	directions	direction	NNS
37894	256	21	during	during	IN
37894	256	22	the	the	DT
37894	256	23	same	same	JJ
37894	256	24	hour	hour	NN
37894	256	25	of	of	IN
37894	256	26	the	the	DT
37894	256	27	night	night	NN
37894	256	28	,	,	,
37894	256	29	no	no	DT
37894	256	30	conclusions	conclusion	NNS
37894	256	31	regarding	regard	VBG
37894	256	32	even	even	RB
37894	256	33	the	the	DT
37894	256	34	relative	relative	JJ
37894	256	35	numbers	number	NNS
37894	256	36	of	of	IN
37894	256	37	birds	bird	NNS
37894	256	38	migrating	migrate	VBG
37894	256	39	are	be	VBP
37894	256	40	warranted	warrant	VBN
37894	256	41	,	,	,
37894	256	42	unless	unless	IN
37894	256	43	they	-PRON-	PRP
37894	256	44	take	take	VBP
37894	256	45	into	into	IN
37894	256	46	account	account	NN
37894	256	47	the	the	DT
37894	256	48	ever	ever	RB
37894	256	49	-	-	HYPH
37894	256	50	varying	vary	VBG
37894	256	51	dimensions	dimension	NNS
37894	256	52	of	of	IN
37894	256	53	the	the	DT
37894	256	54	field	field	NN
37894	256	55	of	of	IN
37894	256	56	observation	observation	NN
37894	256	57	.	.	.
37894	257	1	Otherwise	otherwise	RB
37894	257	2	we	-PRON-	PRP
37894	257	3	are	be	VBP
37894	257	4	attempting	attempt	VBG
37894	257	5	to	to	TO
37894	257	6	measure	measure	VB
37894	257	7	migration	migration	NN
37894	257	8	with	with	IN
37894	257	9	a	a	DT
37894	257	10	unit	unit	NN
37894	257	11	that	that	WDT
37894	257	12	is	be	VBZ
37894	257	13	constantly	constantly	RB
37894	257	14	expanding	expand	VBG
37894	257	15	or	or	CC
37894	257	16	contracting	contract	VBG
37894	257	17	.	.	.
37894	258	1	Otherwise	otherwise	RB
37894	258	2	we	-PRON-	PRP
37894	258	3	may	may	MD
37894	258	4	expect	expect	VB
37894	258	5	the	the	DT
37894	258	6	same	same	JJ
37894	258	7	kind	kind	NN
37894	258	8	of	of	IN
37894	258	9	meaningless	meaningless	JJ
37894	258	10	results	result	NNS
37894	258	11	that	that	WDT
37894	258	12	we	-PRON-	PRP
37894	258	13	might	may	MD
37894	258	14	obtain	obtain	VB
37894	258	15	by	by	IN
37894	258	16	combining	combine	VBG
37894	258	17	measurements	measurement	NNS
37894	258	18	in	in	IN
37894	258	19	millimeters	millimeter	NNS
37894	258	20	with	with	IN
37894	258	21	measurements	measurement	NNS
37894	258	22	in	in	IN
37894	258	23	inches	inch	NNS
37894	258	24	.	.	.
37894	259	1	Some	some	DT
37894	259	2	method	method	NN
37894	259	3	must	must	MD
37894	259	4	be	be	VB
37894	259	5	found	find	VBN
37894	259	6	by	by	IN
37894	259	7	which	which	WDT
37894	259	8	we	-PRON-	PRP
37894	259	9	can	can	MD
37894	259	10	reduce	reduce	VB
37894	259	11	all	all	DT
37894	259	12	data	datum	NNS
37894	259	13	to	to	IN
37894	259	14	a	a	DT
37894	259	15	standard	standard	JJ
37894	259	16	basis	basis	NN
37894	259	17	for	for	IN
37894	259	18	comparison	comparison	NN
37894	259	19	.	.	.
37894	260	1	_	_	NNP
37894	260	2	The	the	DT
37894	260	3	Directional	Directional	NNP
37894	260	4	Element	Element	NNP
37894	260	5	in	in	IN
37894	260	6	Sampling	Sampling	NNP
37894	260	7	_	_	NNP
37894	260	8	In	in	IN
37894	260	9	seeking	seek	VBG
37894	260	10	this	this	DT
37894	260	11	end	end	NN
37894	260	12	,	,	,
37894	260	13	we	-PRON-	PRP
37894	260	14	must	must	MD
37894	260	15	immediately	immediately	RB
37894	260	16	reject	reject	VB
37894	260	17	the	the	DT
37894	260	18	simple	simple	JJ
37894	260	19	logic	logic	NN
37894	260	20	of	of	IN
37894	260	21	sampling	sampling	NN
37894	260	22	that	that	WDT
37894	260	23	may	may	MD
37894	260	24	be	be	VB
37894	260	25	applied	apply	VBN
37894	260	26	to	to	IN
37894	260	27	density	density	NN
37894	260	28	studies	study	NNS
37894	260	29	of	of	IN
37894	260	30	animals	animal	NNS
37894	260	31	on	on	IN
37894	260	32	land	land	NN
37894	260	33	.	.	.
37894	261	1	We	-PRON-	PRP
37894	261	2	must	must	MD
37894	261	3	not	not	RB
37894	261	4	assume	assume	VB
37894	261	5	that	that	IN
37894	261	6	,	,	,
37894	261	7	since	since	IN
37894	261	8	the	the	DT
37894	261	9	field	field	NN
37894	261	10	of	of	IN
37894	261	11	observation	observation	NN
37894	261	12	is	be	VBZ
37894	261	13	a	a	DT
37894	261	14	volume	volume	NN
37894	261	15	in	in	IN
37894	261	16	space	space	NN
37894	261	17	,	,	,
37894	261	18	the	the	DT
37894	261	19	number	number	NN
37894	261	20	of	of	IN
37894	261	21	birds	bird	NNS
37894	261	22	therein	therein	RB
37894	261	23	can	can	MD
37894	261	24	be	be	VB
37894	261	25	directly	directly	RB
37894	261	26	expressed	express	VBN
37894	261	27	in	in	IN
37894	261	28	terms	term	NNS
37894	261	29	of	of	IN
37894	261	30	some	some	DT
37894	261	31	standard	standard	JJ
37894	261	32	volume	volume	NN
37894	261	33	--	--	:
37894	261	34	a	a	DT
37894	261	35	cubic	cubic	JJ
37894	261	36	mile	mile	NN
37894	261	37	,	,	,
37894	261	38	let	let	VB
37894	261	39	us	-PRON-	PRP
37894	261	40	say	say	VB
37894	261	41	.	.	.
37894	262	1	Four	four	CD
37894	262	2	birds	bird	NNS
37894	262	3	counted	count	VBN
37894	262	4	in	in	IN
37894	262	5	a	a	DT
37894	262	6	cone	cone	NN
37894	262	7	of	of	IN
37894	262	8	observation	observation	NN
37894	262	9	computed	compute	VBD
37894	262	10	as	as	IN
37894	262	11	1/500	1/500	CD
37894	262	12	of	of	IN
37894	262	13	a	a	DT
37894	262	14	cubic	cubic	JJ
37894	262	15	mile	mile	NN
37894	262	16	are	be	VBP
37894	262	17	not	not	RB
37894	262	18	the	the	DT
37894	262	19	equivalent	equivalent	NN
37894	262	20	of	of	IN
37894	262	21	500	500	CD
37894	262	22	×	×	NNS
37894	262	23	4	4	CD
37894	262	24	,	,	,
37894	262	25	or	or	CC
37894	262	26	2000	2000	CD
37894	262	27	,	,	,
37894	262	28	birds	bird	NNS
37894	262	29	per	per	IN
37894	262	30	cubic	cubic	JJ
37894	262	31	mile	mile	NN
37894	262	32	.	.	.
37894	263	1	Nor	nor	CC
37894	263	2	do	do	VBP
37894	263	3	four	four	CD
37894	263	4	birds	bird	NNS
37894	263	5	flying	fly	VBG
37894	263	6	over	over	IN
37894	263	7	a	a	DT
37894	263	8	sample	sample	NN
37894	263	9	1/100	1/100	CD
37894	263	10	of	of	IN
37894	263	11	a	a	DT
37894	263	12	square	square	JJ
37894	263	13	mile	mile	NN
37894	263	14	mathematically	mathematically	RB
37894	263	15	represent	represent	VBP
37894	263	16	400	400	CD
37894	263	17	birds	bird	NNS
37894	263	18	passing	pass	VBG
37894	263	19	over	over	IN
37894	263	20	the	the	DT
37894	263	21	square	square	JJ
37894	263	22	mile	mile	NN
37894	263	23	.	.	.
37894	264	1	The	the	DT
37894	264	2	reason	reason	NN
37894	264	3	is	be	VBZ
37894	264	4	that	that	IN
37894	264	5	we	-PRON-	PRP
37894	264	6	are	be	VBP
37894	264	7	not	not	RB
37894	264	8	dealing	deal	VBG
37894	264	9	with	with	IN
37894	264	10	static	static	JJ
37894	264	11	bodies	body	NNS
37894	264	12	fixed	fix	VBN
37894	264	13	in	in	IN
37894	264	14	space	space	NN
37894	264	15	but	but	CC
37894	264	16	with	with	IN
37894	264	17	moving	move	VBG
37894	264	18	objects	object	NNS
37894	264	19	,	,	,
37894	264	20	and	and	CC
37894	264	21	the	the	DT
37894	264	22	objects	object	NNS
37894	264	23	that	that	WDT
37894	264	24	pass	pass	VBP
37894	264	25	through	through	IN
37894	264	26	a	a	DT
37894	264	27	cubic	cubic	JJ
37894	264	28	mile	mile	NN
37894	264	29	are	be	VBP
37894	264	30	not	not	RB
37894	264	31	the	the	DT
37894	264	32	sum	sum	NN
37894	264	33	of	of	IN
37894	264	34	the	the	DT
37894	264	35	objects	object	NNS
37894	264	36	moving	move	VBG
37894	264	37	through	through	IN
37894	264	38	each	each	DT
37894	264	39	of	of	IN
37894	264	40	its	-PRON-	PRP$
37894	264	41	500	500	CD
37894	264	42	parts	part	NNS
37894	264	43	.	.	.
37894	265	1	If	if	IN
37894	265	2	this	this	DT
37894	265	3	fact	fact	NN
37894	265	4	is	be	VBZ
37894	265	5	not	not	RB
37894	265	6	immediately	immediately	RB
37894	265	7	apparent	apparent	JJ
37894	265	8	,	,	,
37894	265	9	consider	consider	VB
37894	265	10	the	the	DT
37894	265	11	circumstances	circumstance	NNS
37894	265	12	in	in	IN
37894	265	13	Figures	Figures	NNP
37894	265	14	6	6	CD
37894	265	15	and	and	CC
37894	265	16	7	7	CD
37894	265	17	,	,	,
37894	265	18	illustrating	illustrate	VBG
37894	265	19	the	the	DT
37894	265	20	principle	principle	NN
37894	265	21	as	as	IN
37894	265	22	it	-PRON-	PRP
37894	265	23	applies	apply	VBZ
37894	265	24	to	to	IN
37894	265	25	areas	area	NNS
37894	265	26	.	.	.
37894	266	1	The	the	DT
37894	266	2	relative	relative	JJ
37894	266	3	capacity	capacity	NN
37894	266	4	of	of	IN
37894	266	5	the	the	DT
37894	266	6	sample	sample	NN
37894	266	7	and	and	CC
37894	266	8	the	the	DT
37894	266	9	whole	whole	NN
37894	266	10	to	to	TO
37894	266	11	intercept	intercept	VB
37894	266	12	bodies	body	NNS
37894	266	13	in	in	IN
37894	266	14	motion	motion	NN
37894	266	15	is	be	VBZ
37894	266	16	more	more	RBR
37894	266	17	closely	closely	RB
37894	266	18	expressed	express	VBN
37894	266	19	by	by	IN
37894	266	20	the	the	DT
37894	266	21	ratio	ratio	NN
37894	266	22	of	of	IN
37894	266	23	their	-PRON-	PRP$
37894	266	24	perimeters	perimeter	NNS
37894	266	25	in	in	IN
37894	266	26	the	the	DT
37894	266	27	case	case	NN
37894	266	28	of	of	IN
37894	266	29	areas	area	NNS
37894	266	30	and	and	CC
37894	266	31	the	the	DT
37894	266	32	ratio	ratio	NN
37894	266	33	of	of	IN
37894	266	34	their	-PRON-	PRP$
37894	266	35	surface	surface	NN
37894	266	36	areas	area	NNS
37894	266	37	in	in	IN
37894	266	38	the	the	DT
37894	266	39	case	case	NN
37894	266	40	of	of	IN
37894	266	41	volumes	volume	NNS
37894	266	42	.	.	.
37894	267	1	But	but	CC
37894	267	2	even	even	RB
37894	267	3	these	these	DT
37894	267	4	ratios	ratio	NNS
37894	267	5	lead	lead	VBP
37894	267	6	to	to	IN
37894	267	7	inaccurate	inaccurate	JJ
37894	267	8	results	result	NNS
37894	267	9	unless	unless	IN
37894	267	10	the	the	DT
37894	267	11	objects	object	NNS
37894	267	12	are	be	VBP
37894	267	13	moving	move	VBG
37894	267	14	in	in	IN
37894	267	15	all	all	DT
37894	267	16	directions	direction	NNS
37894	267	17	equally	equally	RB
37894	267	18	(	(	-LRB-
37894	267	19	see	see	VB
37894	267	20	Figure	Figure	NNP
37894	267	21	8)	8)	CD
37894	267	22	.	.	.
37894	268	1	Since	since	IN
37894	268	2	bird	bird	NN
37894	268	3	migration	migration	NN
37894	268	4	exhibits	exhibit	VBZ
37894	268	5	strong	strong	JJ
37894	268	6	directional	directional	JJ
37894	268	7	tendencies	tendency	NNS
37894	268	8	,	,	,
37894	268	9	I	-PRON-	PRP
37894	268	10	have	have	VBP
37894	268	11	come	come	VBN
37894	268	12	to	to	IN
37894	268	13	the	the	DT
37894	268	14	conclusion	conclusion	NN
37894	268	15	that	that	IN
37894	268	16	no	no	DT
37894	268	17	sampling	sampling	NN
37894	268	18	procedure	procedure	NN
37894	268	19	that	that	WDT
37894	268	20	can	can	MD
37894	268	21	be	be	VB
37894	268	22	applied	apply	VBN
37894	268	23	to	to	IN
37894	268	24	it	-PRON-	PRP
37894	268	25	is	be	VBZ
37894	268	26	sufficiently	sufficiently	RB
37894	268	27	reliable	reliable	JJ
37894	268	28	short	short	NN
37894	268	29	of	of	IN
37894	268	30	handling	handle	VBG
37894	268	31	each	each	DT
37894	268	32	directional	directional	JJ
37894	268	33	trend	trend	NN
37894	268	34	separately	separately	RB
37894	268	35	.	.	.
37894	269	1	[	[	-LRB-
37894	269	2	Illustration	illustration	NN
37894	269	3	:	:	:
37894	269	4	FIG	FIG	NNP
37894	269	5	.	.	.
37894	270	1	6	6	CD
37894	270	2	.	.	.
37894	271	1	The	the	DT
37894	271	2	problem	problem	NN
37894	271	3	of	of	IN
37894	271	4	sampling	sample	VBG
37894	271	5	migrating	migrating	NN
37894	271	6	birds	bird	NNS
37894	271	7	.	.	.
37894	272	1	The	the	DT
37894	272	2	large	large	JJ
37894	272	3	square	square	NN
37894	272	4	in	in	IN
37894	272	5	the	the	DT
37894	272	6	diagram	diagram	NN
37894	272	7	may	may	MD
37894	272	8	be	be	VB
37894	272	9	thought	think	VBN
37894	272	10	of	of	IN
37894	272	11	as	as	IN
37894	272	12	a	a	DT
37894	272	13	square	square	JJ
37894	272	14	mile	mile	NN
37894	272	15	on	on	IN
37894	272	16	the	the	DT
37894	272	17	earth	earth	NN
37894	272	18	's	's	POS
37894	272	19	surface	surface	NN
37894	272	20	,	,	,
37894	272	21	divided	divide	VBN
37894	272	22	into	into	IN
37894	272	23	four	four	CD
37894	272	24	equal	equal	JJ
37894	272	25	smaller	small	JJR
37894	272	26	squares	square	NNS
37894	272	27	.	.	.
37894	273	1	Birds	bird	NNS
37894	273	2	are	be	VBP
37894	273	3	crossing	cross	VBG
37894	273	4	over	over	IN
37894	273	5	the	the	DT
37894	273	6	area	area	NN
37894	273	7	in	in	IN
37894	273	8	three	three	CD
37894	273	9	directions	direction	NNS
37894	273	10	,	,	,
37894	273	11	equally	equally	RB
37894	273	12	spaced	space	VBN
37894	273	13	,	,	,
37894	273	14	so	so	IN
37894	273	15	that	that	IN
37894	273	16	each	each	DT
37894	273	17	of	of	IN
37894	273	18	the	the	DT
37894	273	19	subdivisions	subdivision	NNS
37894	273	20	is	be	VBZ
37894	273	21	traversed	traverse	VBN
37894	273	22	by	by	IN
37894	273	23	three	three	CD
37894	273	24	of	of	IN
37894	273	25	them	-PRON-	PRP
37894	273	26	.	.	.
37894	274	1	We	-PRON-	PRP
37894	274	2	might	may	MD
37894	274	3	be	be	VB
37894	274	4	tempted	tempt	VBN
37894	274	5	to	to	TO
37894	274	6	conclude	conclude	VB
37894	274	7	that	that	IN
37894	274	8	4	4	CD
37894	274	9	×	×	CD
37894	274	10	3	3	CD
37894	274	11	,	,	,
37894	274	12	or	or	CC
37894	274	13	12	12	CD
37894	274	14	,	,	,
37894	274	15	would	would	MD
37894	274	16	pass	pass	VB
37894	274	17	over	over	RP
37894	274	18	the	the	DT
37894	274	19	large	large	JJ
37894	274	20	square	square	NN
37894	274	21	.	.	.
37894	275	1	Actually	actually	RB
37894	275	2	there	there	EX
37894	275	3	are	be	VBP
37894	275	4	only	only	RB
37894	275	5	seven	seven	CD
37894	275	6	birds	bird	NNS
37894	275	7	involved	involve	VBN
37894	275	8	all	all	DT
37894	275	9	told	tell	VBN
37894	275	10	.	.	.
37894	276	1	Obviously	obviously	RB
37894	276	2	,	,	,
37894	276	3	the	the	DT
37894	276	4	interceptive	interceptive	JJ
37894	276	5	potential	potential	NN
37894	276	6	of	of	IN
37894	276	7	a	a	DT
37894	276	8	small	small	JJ
37894	276	9	square	square	NN
37894	276	10	and	and	CC
37894	276	11	a	a	DT
37894	276	12	larger	large	JJR
37894	276	13	square	square	NN
37894	276	14	do	do	VBP
37894	276	15	not	not	RB
37894	276	16	stand	stand	VB
37894	276	17	in	in	IN
37894	276	18	the	the	DT
37894	276	19	same	same	JJ
37894	276	20	ratio	ratio	NN
37894	276	21	as	as	IN
37894	276	22	their	-PRON-	PRP$
37894	276	23	areas	area	NNS
37894	276	24	.	.	.
37894	276	25	]	]	-RRB-
37894	277	1	For	for	IN
37894	277	2	this	this	DT
37894	277	3	reason	reason	NN
37894	277	4	,	,	,
37894	277	5	the	the	DT
37894	277	6	success	success	NN
37894	277	7	of	of	IN
37894	277	8	the	the	DT
37894	277	9	whole	whole	JJ
37894	277	10	quantitative	quantitative	JJ
37894	277	11	study	study	NN
37894	277	12	of	of	IN
37894	277	13	migration	migration	NN
37894	277	14	depends	depend	VBZ
37894	277	15	upon	upon	IN
37894	277	16	our	-PRON-	PRP$
37894	277	17	ability	ability	NN
37894	277	18	to	to	TO
37894	277	19	make	make	VB
37894	277	20	directional	directional	JJ
37894	277	21	analyses	analysis	NNS
37894	277	22	of	of	IN
37894	277	23	primary	primary	JJ
37894	277	24	data	datum	NNS
37894	277	25	.	.	.
37894	278	1	As	as	IN
37894	278	2	I	-PRON-	PRP
37894	278	3	have	have	VBP
37894	278	4	already	already	RB
37894	278	5	pointed	point	VBN
37894	278	6	out	out	RP
37894	278	7	,	,	,
37894	278	8	the	the	DT
37894	278	9	flight	flight	NN
37894	278	10	directions	direction	NNS
37894	278	11	of	of	IN
37894	278	12	birds	bird	NNS
37894	278	13	may	may	MD
37894	278	14	be	be	VB
37894	278	15	recorded	record	VBN
37894	278	16	with	with	IN
37894	278	17	convenience	convenience	NN
37894	278	18	and	and	CC
37894	278	19	a	a	DT
37894	278	20	fair	fair	JJ
37894	278	21	degree	degree	NN
37894	278	22	of	of	IN
37894	278	23	objectivity	objectivity	NN
37894	278	24	by	by	IN
37894	278	25	noting	note	VBG
37894	278	26	the	the	DT
37894	278	27	slant	slant	NN
37894	278	28	of	of	IN
37894	278	29	their	-PRON-	PRP$
37894	278	30	apparent	apparent	JJ
37894	278	31	pathways	pathway	NNS
37894	278	32	across	across	IN
37894	278	33	the	the	DT
37894	278	34	disc	disc	NN
37894	278	35	of	of	IN
37894	278	36	the	the	DT
37894	278	37	moon	moon	NN
37894	278	38	.	.	.
37894	279	1	But	but	CC
37894	279	2	these	these	DT
37894	279	3	apparent	apparent	JJ
37894	279	4	pathways	pathway	NNS
37894	279	5	are	be	VBP
37894	279	6	seldom	seldom	RB
37894	279	7	the	the	DT
37894	279	8	real	real	JJ
37894	279	9	pathways	pathway	NNS
37894	279	10	.	.	.
37894	280	1	Usually	usually	RB
37894	280	2	they	-PRON-	PRP
37894	280	3	involve	involve	VBP
37894	280	4	the	the	DT
37894	280	5	transfer	transfer	NN
37894	280	6	of	of	IN
37894	280	7	the	the	DT
37894	280	8	flight	flight	NN
37894	280	9	line	line	NN
37894	280	10	from	from	IN
37894	280	11	a	a	DT
37894	280	12	horizontal	horizontal	JJ
37894	280	13	plane	plane	NN
37894	280	14	of	of	IN
37894	280	15	flight	flight	NN
37894	280	16	to	to	IN
37894	280	17	a	a	DT
37894	280	18	tilted	tilt	VBN
37894	280	19	plane	plane	NN
37894	280	20	represented	represent	VBN
37894	280	21	by	by	IN
37894	280	22	the	the	DT
37894	280	23	face	face	NN
37894	280	24	of	of	IN
37894	280	25	the	the	DT
37894	280	26	moon	moon	NN
37894	280	27	,	,	,
37894	280	28	and	and	CC
37894	280	29	so	so	RB
37894	280	30	take	take	VB
37894	280	31	on	on	RP
37894	280	32	the	the	DT
37894	280	33	nature	nature	NN
37894	280	34	of	of	IN
37894	280	35	a	a	DT
37894	280	36	projection	projection	NN
37894	280	37	.	.	.
37894	281	1	They	-PRON-	PRP
37894	281	2	are	be	VBP
37894	281	3	clues	clue	NNS
37894	281	4	to	to	IN
37894	281	5	directions	direction	NNS
37894	281	6	,	,	,
37894	281	7	but	but	CC
37894	281	8	they	-PRON-	PRP
37894	281	9	are	be	VBP
37894	281	10	not	not	RB
37894	281	11	the	the	DT
37894	281	12	directions	direction	NNS
37894	281	13	themselves	-PRON-	PRP
37894	281	14	.	.	.
37894	282	1	For	for	IN
37894	282	2	each	each	DT
37894	282	3	compass	compass	NN
37894	282	4	direction	direction	NN
37894	282	5	of	of	IN
37894	282	6	birds	bird	NNS
37894	282	7	flying	fly	VBG
37894	282	8	horizontally	horizontally	RB
37894	282	9	above	above	IN
37894	282	10	the	the	DT
37894	282	11	earth	earth	NN
37894	282	12	,	,	,
37894	282	13	there	there	EX
37894	282	14	is	be	VBZ
37894	282	15	one	one	CD
37894	282	16	,	,	,
37894	282	17	and	and	CC
37894	282	18	only	only	RB
37894	282	19	one	one	CD
37894	282	20	,	,	,
37894	282	21	slant	slant	JJ
37894	282	22	of	of	IN
37894	282	23	the	the	DT
37894	282	24	pathway	pathway	NN
37894	282	25	across	across	IN
37894	282	26	the	the	DT
37894	282	27	moon	moon	NN
37894	282	28	at	at	IN
37894	282	29	a	a	DT
37894	282	30	given	give	VBN
37894	282	31	time	time	NN
37894	282	32	.	.	.
37894	283	1	It	-PRON-	PRP
37894	283	2	is	be	VBZ
37894	283	3	possible	possible	JJ
37894	283	4	,	,	,
37894	283	5	therefore	therefore	RB
37894	283	6	,	,	,
37894	283	7	knowing	know	VBG
37894	283	8	the	the	DT
37894	283	9	path	path	NN
37894	283	10	of	of	IN
37894	283	11	a	a	DT
37894	283	12	bird	bird	NN
37894	283	13	in	in	IN
37894	283	14	relation	relation	NN
37894	283	15	to	to	IN
37894	283	16	the	the	DT
37894	283	17	lunar	lunar	JJ
37894	283	18	disc	disc	NN
37894	283	19	and	and	CC
37894	283	20	the	the	DT
37894	283	21	time	time	NN
37894	283	22	of	of	IN
37894	283	23	the	the	DT
37894	283	24	observation	observation	NN
37894	283	25	,	,	,
37894	283	26	to	to	TO
37894	283	27	compute	compute	VB
37894	283	28	the	the	DT
37894	283	29	direction	direction	NN
37894	283	30	of	of	IN
37894	283	31	its	-PRON-	PRP$
37894	283	32	path	path	NN
37894	283	33	in	in	IN
37894	283	34	relation	relation	NN
37894	283	35	to	to	IN
37894	283	36	the	the	DT
37894	283	37	earth	earth	NN
37894	283	38	.	.	.
37894	284	1	The	the	DT
37894	284	2	formula	formula	NN
37894	284	3	employed	employ	VBN
37894	284	4	is	be	VBZ
37894	284	5	not	not	RB
37894	284	6	a	a	DT
37894	284	7	complicated	complicated	JJ
37894	284	8	one	one	NN
37894	284	9	,	,	,
37894	284	10	but	but	CC
37894	284	11	,	,	,
37894	284	12	since	since	IN
37894	284	13	the	the	DT
37894	284	14	meaning	meaning	NN
37894	284	15	of	of	IN
37894	284	16	the	the	DT
37894	284	17	lunar	lunar	JJ
37894	284	18	coördinates	coördinate	NNS
37894	284	19	in	in	IN
37894	284	20	terms	term	NNS
37894	284	21	of	of	IN
37894	284	22	their	-PRON-	PRP$
37894	284	23	corresponding	corresponding	JJ
37894	284	24	flight	flight	NN
37894	284	25	paths	path	NNS
37894	284	26	parallel	parallel	JJ
37894	284	27	to	to	IN
37894	284	28	the	the	DT
37894	284	29	earth	earth	NN
37894	284	30	is	be	VBZ
37894	284	31	constantly	constantly	RB
37894	284	32	changing	change	VBG
37894	284	33	with	with	IN
37894	284	34	the	the	DT
37894	284	35	position	position	NN
37894	284	36	of	of	IN
37894	284	37	the	the	DT
37894	284	38	moon	moon	NN
37894	284	39	,	,	,
37894	284	40	the	the	DT
37894	284	41	calculation	calculation	NN
37894	284	42	of	of	IN
37894	284	43	each	each	DT
37894	284	44	bird	bird	NN
37894	284	45	's	's	POS
37894	284	46	flight	flight	NN
37894	284	47	separately	separately	RB
37894	284	48	would	would	MD
37894	284	49	require	require	VB
37894	284	50	a	a	DT
37894	284	51	tremendous	tremendous	JJ
37894	284	52	amount	amount	NN
37894	284	53	of	of	IN
37894	284	54	time	time	NN
37894	284	55	and	and	CC
37894	284	56	effort	effort	NN
37894	284	57	.	.	.
37894	285	1	[	[	-LRB-
37894	285	2	Illustration	illustration	NN
37894	285	3	:	:	:
37894	285	4	FIG	FIG	NNP
37894	285	5	.	.	.
37894	286	1	7	7	LS
37894	286	2	.	.	.
37894	287	1	The	the	DT
37894	287	2	sampling	sampling	NN
37894	287	3	effect	effect	NN
37894	287	4	of	of	IN
37894	287	5	a	a	DT
37894	287	6	square	square	NN
37894	287	7	.	.	.
37894	288	1	In	in	IN
37894	288	2	Diagram	Diagram	NNP
37894	288	3	A	a	DT
37894	288	4	eight	eight	CD
37894	288	5	evenly	evenly	RB
37894	288	6	distributed	distribute	VBN
37894	288	7	birds	bird	NNS
37894	288	8	are	be	VBP
37894	288	9	flying	fly	VBG
37894	288	10	from	from	IN
37894	288	11	south	south	NN
37894	288	12	to	to	IN
37894	288	13	north	north	NN
37894	288	14	,	,	,
37894	288	15	and	and	CC
37894	288	16	another	another	DT
37894	288	17	four	four	CD
37894	288	18	are	be	VBP
37894	288	19	proceeding	proceed	VBG
37894	288	20	from	from	IN
37894	288	21	east	east	NNP
37894	288	22	to	to	IN
37894	288	23	west	west	NNP
37894	288	24	.	.	.
37894	289	1	Three	three	CD
37894	289	2	appear	appear	VBP
37894	289	3	in	in	IN
37894	289	4	each	each	DT
37894	289	5	of	of	IN
37894	289	6	the	the	DT
37894	289	7	smaller	small	JJR
37894	289	8	squares	square	NNS
37894	289	9	.	.	.
37894	290	1	Thus	thus	RB
37894	290	2	,	,	,
37894	290	3	if	if	IN
37894	290	4	we	-PRON-	PRP
37894	290	5	were	be	VBD
37894	290	6	to	to	TO
37894	290	7	treat	treat	VB
37894	290	8	any	any	DT
37894	290	9	of	of	IN
37894	290	10	these	these	DT
37894	290	11	smaller	small	JJR
37894	290	12	sections	section	NNS
37894	290	13	as	as	IN
37894	290	14	a	a	DT
37894	290	15	directly	directly	RB
37894	290	16	proportionate	proportionate	JJ
37894	290	17	sample	sample	NN
37894	290	18	of	of	IN
37894	290	19	the	the	DT
37894	290	20	whole	whole	NN
37894	290	21	,	,	,
37894	290	22	we	-PRON-	PRP
37894	290	23	would	would	MD
37894	290	24	be	be	VB
37894	290	25	assuming	assume	VBG
37894	290	26	that	that	IN
37894	290	27	3	3	CD
37894	290	28	×	×	CD
37894	290	29	16	16	CD
37894	290	30	,	,	,
37894	290	31	or	or	CC
37894	290	32	48	48	CD
37894	290	33	,	,	,
37894	290	34	birds	bird	NNS
37894	290	35	had	have	VBD
37894	290	36	traversed	traverse	VBN
37894	290	37	the	the	DT
37894	290	38	square	square	JJ
37894	290	39	mile	mile	NN
37894	290	40	--	--	:
37894	290	41	four	four	CD
37894	290	42	times	time	NNS
37894	290	43	the	the	DT
37894	290	44	real	real	JJ
37894	290	45	total	total	NN
37894	290	46	of	of	IN
37894	290	47	12	12	CD
37894	290	48	.	.	.
37894	291	1	If	if	IN
37894	291	2	we	-PRON-	PRP
37894	291	3	consider	consider	VBP
37894	291	4	the	the	DT
37894	291	5	paths	path	NNS
37894	291	6	separately	separately	RB
37894	291	7	as	as	IN
37894	291	8	in	in	IN
37894	291	9	Diagram	Diagram	NNP
37894	291	10	B	B	NNP
37894	291	11	,	,	,
37894	291	12	we	-PRON-	PRP
37894	291	13	see	see	VBP
37894	291	14	quite	quite	RB
37894	291	15	clearly	clearly	RB
37894	291	16	what	what	WP
37894	291	17	is	be	VBZ
37894	291	18	wrong	wrong	JJ
37894	291	19	.	.	.
37894	292	1	Every	every	DT
37894	292	2	bird	bird	NN
37894	292	3	crosses	cross	VBZ
37894	292	4	four	four	CD
37894	292	5	plots	plot	NNS
37894	292	6	the	the	DT
37894	292	7	size	size	NN
37894	292	8	of	of	IN
37894	292	9	the	the	DT
37894	292	10	sample	sample	NN
37894	292	11	and	and	CC
37894	292	12	is	be	VBZ
37894	292	13	being	be	VBG
37894	292	14	computed	compute	VBN
37894	292	15	into	into	IN
37894	292	16	the	the	DT
37894	292	17	total	total	NN
37894	292	18	over	over	RB
37894	292	19	and	and	CC
37894	292	20	over	over	IN
37894	292	21	a	a	DT
37894	292	22	corresponding	corresponding	JJ
37894	292	23	number	number	NN
37894	292	24	of	of	IN
37894	292	25	times	time	NNS
37894	292	26	.	.	.
37894	293	1	Patently	patently	RB
37894	293	2	,	,	,
37894	293	3	just	just	RB
37894	293	4	as	as	IN
37894	293	5	many	many	JJ
37894	293	6	south	south	JJ
37894	293	7	-	-	HYPH
37894	293	8	north	north	NN
37894	293	9	birds	bird	NNS
37894	293	10	cross	cross	VBP
37894	293	11	the	the	DT
37894	293	12	bottom	bottom	JJ
37894	293	13	tier	tier	NN
37894	293	14	of	of	IN
37894	293	15	squares	square	NNS
37894	293	16	as	as	IN
37894	293	17	cross	cross	VBP
37894	293	18	the	the	DT
37894	293	19	four	four	CD
37894	293	20	tiers	tier	NNS
37894	293	21	comprising	comprise	VBG
37894	293	22	the	the	DT
37894	293	23	whole	whole	JJ
37894	293	24	area	area	NN
37894	293	25	.	.	.
37894	294	1	Just	just	RB
37894	294	2	as	as	IN
37894	294	3	many	many	JJ
37894	294	4	west	west	JJ
37894	294	5	-	-	HYPH
37894	294	6	east	east	NN
37894	294	7	birds	bird	NNS
37894	294	8	traverse	traverse	VBP
37894	294	9	one	one	CD
37894	294	10	side	side	NN
37894	294	11	of	of	IN
37894	294	12	the	the	DT
37894	294	13	large	large	JJ
37894	294	14	square	square	NN
37894	294	15	as	as	IN
37894	294	16	cross	cross	VB
37894	294	17	the	the	DT
37894	294	18	whole	whole	JJ
37894	294	19	square	square	NN
37894	294	20	.	.	.
37894	295	1	In	in	IN
37894	295	2	other	other	JJ
37894	295	3	words	word	NNS
37894	295	4	,	,	,
37894	295	5	the	the	DT
37894	295	6	inclusion	inclusion	NN
37894	295	7	of	of	IN
37894	295	8	additional	additional	JJ
37894	295	9	sections	section	NNS
37894	295	10	_	_	NNP
37894	295	11	athwart	athwart	NNP
37894	295	12	_	_	NNP
37894	295	13	the	the	DT
37894	295	14	direction	direction	NN
37894	295	15	of	of	IN
37894	295	16	flight	flight	NN
37894	295	17	involves	involve	VBZ
37894	295	18	the	the	DT
37894	295	19	inclusion	inclusion	NN
37894	295	20	of	of	IN
37894	295	21	additional	additional	JJ
37894	295	22	birds	bird	NNS
37894	295	23	proceeding	proceed	VBG
37894	295	24	in	in	IN
37894	295	25	that	that	DT
37894	295	26	direction	direction	NN
37894	295	27	,	,	,
37894	295	28	while	while	IN
37894	295	29	the	the	DT
37894	295	30	inclusion	inclusion	NN
37894	295	31	of	of	IN
37894	295	32	additional	additional	JJ
37894	295	33	sections	section	NNS
37894	295	34	_	_	NNP
37894	295	35	along	along	IN
37894	295	36	_	_	NNP
37894	295	37	the	the	DT
37894	295	38	direction	direction	NN
37894	295	39	does	do	VBZ
37894	295	40	not	not	RB
37894	295	41	.	.	.
37894	296	1	The	the	DT
37894	296	2	correct	correct	JJ
37894	296	3	ratio	ratio	NN
37894	296	4	of	of	IN
37894	296	5	the	the	DT
37894	296	6	sample	sample	NN
37894	296	7	to	to	IN
37894	296	8	the	the	DT
37894	296	9	whole	whole	NN
37894	296	10	would	would	MD
37894	296	11	seem	seem	VB
37894	296	12	to	to	TO
37894	296	13	be	be	VB
37894	296	14	the	the	DT
37894	296	15	ratio	ratio	NN
37894	296	16	of	of	IN
37894	296	17	their	-PRON-	PRP$
37894	296	18	perimeters	perimeter	NNS
37894	296	19	,	,	,
37894	296	20	in	in	IN
37894	296	21	this	this	DT
37894	296	22	case	case	NN
37894	296	23	the	the	DT
37894	296	24	ratio	ratio	NN
37894	296	25	of	of	IN
37894	296	26	one	one	CD
37894	296	27	to	to	IN
37894	296	28	four	four	CD
37894	296	29	.	.	.
37894	297	1	When	when	WRB
37894	297	2	this	this	DT
37894	297	3	factor	factor	NN
37894	297	4	of	of	IN
37894	297	5	four	four	CD
37894	297	6	is	be	VBZ
37894	297	7	applied	apply	VBN
37894	297	8	to	to	IN
37894	297	9	the	the	DT
37894	297	10	problem	problem	NN
37894	297	11	it	-PRON-	PRP
37894	297	12	proves	prove	VBZ
37894	297	13	correct	correct	JJ
37894	297	14	:	:	:
37894	297	15	4	4	CD
37894	297	16	×	×	CD
37894	297	17	3	3	CD
37894	297	18	(	(	-LRB-
37894	297	19	the	the	DT
37894	297	20	number	number	NN
37894	297	21	of	of	IN
37894	297	22	birds	bird	NNS
37894	297	23	that	that	WDT
37894	297	24	have	have	VBP
37894	297	25	been	be	VBN
37894	297	26	seen	see	VBN
37894	297	27	in	in	IN
37894	297	28	the	the	DT
37894	297	29	sample	sample	NNP
37894	297	30	square	square	NNP
37894	297	31	)	)	-RRB-
37894	297	32	equals	equal	VBZ
37894	297	33	12	12	CD
37894	297	34	(	(	-LRB-
37894	297	35	the	the	DT
37894	297	36	exact	exact	JJ
37894	297	37	number	number	NN
37894	297	38	of	of	IN
37894	297	39	birds	bird	NNS
37894	297	40	that	that	WDT
37894	297	41	could	could	MD
37894	297	42	be	be	VB
37894	297	43	seen	see	VBN
37894	297	44	in	in	IN
37894	297	45	the	the	DT
37894	297	46	square	square	JJ
37894	297	47	mile	mile	NN
37894	297	48	)	)	-RRB-
37894	297	49	.	.	.
37894	297	50	]	]	-RRB-
37894	298	1	[	[	-LRB-
37894	298	2	Illustration	illustration	NN
37894	298	3	:	:	:
37894	298	4	FIG	FIG	NNP
37894	298	5	.	.	.
37894	299	1	8	8	LS
37894	299	2	.	.	.
37894	300	1	Rectangular	rectangular	JJ
37894	300	2	samples	sample	NNS
37894	300	3	of	of	IN
37894	300	4	square	square	JJ
37894	300	5	areas	area	NNS
37894	300	6	.	.	.
37894	301	1	In	in	IN
37894	301	2	Diagram	Diagram	NNP
37894	301	3	A	A	NNP
37894	301	4	,	,	,
37894	301	5	where	where	WRB
37894	301	6	as	as	IN
37894	301	7	many	many	JJ
37894	301	8	birds	bird	NNS
37894	301	9	are	be	VBP
37894	301	10	flying	fly	VBG
37894	301	11	from	from	IN
37894	301	12	west	west	NNP
37894	301	13	to	to	IN
37894	301	14	east	east	NNP
37894	301	15	as	as	RB
37894	301	16	are	be	VBP
37894	301	17	flying	fly	VBG
37894	301	18	from	from	IN
37894	301	19	south	south	NN
37894	301	20	to	to	IN
37894	301	21	north	north	NN
37894	301	22	,	,	,
37894	301	23	the	the	DT
37894	301	24	perimeter	perimeter	NN
37894	301	25	ratio	ratio	NN
37894	301	26	(	(	-LRB-
37894	301	27	three	three	CD
37894	301	28	to	to	TO
37894	301	29	eight	eight	CD
37894	301	30	)	)	-RRB-
37894	301	31	correctly	correctly	RB
37894	301	32	expresses	express	VBZ
37894	301	33	the	the	DT
37894	301	34	number	number	NN
37894	301	35	of	of	IN
37894	301	36	birds	bird	NNS
37894	301	37	that	that	WDT
37894	301	38	have	have	VBP
37894	301	39	traversed	traverse	VBN
37894	301	40	the	the	DT
37894	301	41	whole	whole	JJ
37894	301	42	area	area	NN
37894	301	43	relative	relative	JJ
37894	301	44	to	to	IN
37894	301	45	the	the	DT
37894	301	46	number	number	NN
37894	301	47	that	that	WDT
37894	301	48	have	have	VBP
37894	301	49	passed	pass	VBN
37894	301	50	through	through	IN
37894	301	51	the	the	DT
37894	301	52	sample	sample	NN
37894	301	53	.	.	.
37894	302	1	But	but	CC
37894	302	2	in	in	IN
37894	302	3	Diagram	Diagram	NNP
37894	302	4	B	B	NNP
37894	302	5	,	,	,
37894	302	6	where	where	WRB
37894	302	7	all	all	DT
37894	302	8	thirty	thirty	CD
37894	302	9	-	-	HYPH
37894	302	10	two	two	CD
37894	302	11	birds	bird	NNS
37894	302	12	are	be	VBP
37894	302	13	flying	fly	VBG
37894	302	14	from	from	IN
37894	302	15	south	south	NN
37894	302	16	to	to	IN
37894	302	17	north	north	NN
37894	302	18	,	,	,
37894	302	19	the	the	DT
37894	302	20	correct	correct	JJ
37894	302	21	ratio	ratio	NN
37894	302	22	is	be	VBZ
37894	302	23	the	the	DT
37894	302	24	ratio	ratio	NN
37894	302	25	of	of	IN
37894	302	26	the	the	DT
37894	302	27	base	base	NN
37894	302	28	of	of	IN
37894	302	29	the	the	DT
37894	302	30	sample	sample	NN
37894	302	31	to	to	IN
37894	302	32	the	the	DT
37894	302	33	base	base	NN
37894	302	34	of	of	IN
37894	302	35	the	the	DT
37894	302	36	total	total	JJ
37894	302	37	area	area	NN
37894	302	38	(	(	-LRB-
37894	302	39	one	one	CD
37894	302	40	to	to	IN
37894	302	41	four	four	CD
37894	302	42	)	)	-RRB-
37894	302	43	,	,	,
37894	302	44	and	and	CC
37894	302	45	use	use	NN
37894	302	46	of	of	IN
37894	302	47	the	the	DT
37894	302	48	perimeter	perimeter	NN
37894	302	49	ratio	ratio	NN
37894	302	50	would	would	MD
37894	302	51	lead	lead	VB
37894	302	52	to	to	IN
37894	302	53	an	an	DT
37894	302	54	inaccurate	inaccurate	JJ
37894	302	55	result	result	NN
37894	302	56	(	(	-LRB-
37894	302	57	forty	forty	CD
37894	302	58	-	-	HYPH
37894	302	59	three	three	CD
37894	302	60	instead	instead	RB
37894	302	61	of	of	IN
37894	302	62	thirty	thirty	CD
37894	302	63	-	-	HYPH
37894	302	64	two	two	CD
37894	302	65	birds	bird	NNS
37894	302	66	)	)	-RRB-
37894	302	67	.	.	.
37894	303	1	Perimeter	perimeter	NN
37894	303	2	ratios	ratio	NNS
37894	303	3	do	do	VBP
37894	303	4	not	not	RB
37894	303	5	correctly	correctly	RB
37894	303	6	express	express	VB
37894	303	7	relative	relative	JJ
37894	303	8	interceptory	interceptory	JJ
37894	303	9	potential	potential	NN
37894	303	10	,	,	,
37894	303	11	unless	unless	IN
37894	303	12	the	the	DT
37894	303	13	shape	shape	NN
37894	303	14	of	of	IN
37894	303	15	the	the	DT
37894	303	16	sample	sample	NN
37894	303	17	is	be	VBZ
37894	303	18	the	the	DT
37894	303	19	same	same	JJ
37894	303	20	as	as	IN
37894	303	21	the	the	DT
37894	303	22	shape	shape	NN
37894	303	23	of	of	IN
37894	303	24	the	the	DT
37894	303	25	whole	whole	NN
37894	303	26	,	,	,
37894	303	27	or	or	CC
37894	303	28	unless	unless	IN
37894	303	29	the	the	DT
37894	303	30	birds	bird	NNS
37894	303	31	are	be	VBP
37894	303	32	flying	fly	VBG
37894	303	33	in	in	IN
37894	303	34	all	all	DT
37894	303	35	directions	direction	NNS
37894	303	36	equally	equally	RB
37894	303	37	.	.	.
37894	303	38	]	]	-RRB-
37894	304	1	Whatever	whatever	WDT
37894	304	2	we	-PRON-	PRP
37894	304	3	do	do	VBP
37894	304	4	,	,	,
37894	304	5	computed	compute	VBD
37894	304	6	individual	individual	JJ
37894	304	7	flight	flight	NN
37894	304	8	directions	direction	NNS
37894	304	9	must	must	MD
37894	304	10	be	be	VB
37894	304	11	frankly	frankly	RB
37894	304	12	recognized	recognize	VBN
37894	304	13	as	as	IN
37894	304	14	approximations	approximation	NNS
37894	304	15	.	.	.
37894	305	1	Their	-PRON-	PRP$
37894	305	2	anticipated	anticipate	VBN
37894	305	3	inaccuracies	inaccuracy	NNS
37894	305	4	are	be	VBP
37894	305	5	not	not	RB
37894	305	6	the	the	DT
37894	305	7	result	result	NN
37894	305	8	of	of	IN
37894	305	9	defects	defect	NNS
37894	305	10	in	in	IN
37894	305	11	the	the	DT
37894	305	12	mathematical	mathematical	JJ
37894	305	13	procedure	procedure	NN
37894	305	14	employed	employ	VBN
37894	305	15	.	.	.
37894	306	1	This	this	DT
37894	306	2	is	be	VBZ
37894	306	3	rigorous	rigorous	JJ
37894	306	4	.	.	.
37894	307	1	The	the	DT
37894	307	2	difficulty	difficulty	NN
37894	307	3	lies	lie	VBZ
37894	307	4	in	in	IN
37894	307	5	the	the	DT
37894	307	6	impossibility	impossibility	NN
37894	307	7	of	of	IN
37894	307	8	reading	read	VBG
37894	307	9	the	the	DT
37894	307	10	slants	slant	NNS
37894	307	11	of	of	IN
37894	307	12	the	the	DT
37894	307	13	pathways	pathway	NNS
37894	307	14	on	on	IN
37894	307	15	the	the	DT
37894	307	16	moon	moon	NN
37894	307	17	precisely	precisely	RB
37894	307	18	and	and	CC
37894	307	19	in	in	IN
37894	307	20	the	the	DT
37894	307	21	three	three	CD
37894	307	22	-	-	HYPH
37894	307	23	dimensional	dimensional	JJ
37894	307	24	nature	nature	NN
37894	307	25	of	of	IN
37894	307	26	movement	movement	NN
37894	307	27	through	through	IN
37894	307	28	space	space	NN
37894	307	29	.	.	.
37894	308	1	The	the	DT
37894	308	2	observed	observed	JJ
37894	308	3	coördinates	coördinate	NNS
37894	308	4	of	of	IN
37894	308	5	birds	bird	NNS
37894	308	6	'	'	POS
37894	308	7	pathways	pathway	NNS
37894	308	8	across	across	IN
37894	308	9	the	the	DT
37894	308	10	moon	moon	NN
37894	308	11	are	be	VBP
37894	308	12	the	the	DT
37894	308	13	projected	project	VBN
37894	308	14	product	product	NN
37894	308	15	of	of	IN
37894	308	16	two	two	CD
37894	308	17	component	component	NN
37894	308	18	angles	angle	NNS
37894	308	19	--	--	:
37894	308	20	the	the	DT
37894	308	21	compass	compass	NN
37894	308	22	direction	direction	NN
37894	308	23	of	of	IN
37894	308	24	the	the	DT
37894	308	25	flight	flight	NN
37894	308	26	and	and	CC
37894	308	27	its	-PRON-	PRP$
37894	308	28	slope	slope	NN
37894	308	29	off	off	IN
37894	308	30	the	the	DT
37894	308	31	horizontal	horizontal	JJ
37894	308	32	,	,	,
37894	308	33	or	or	CC
37894	308	34	gradient	gradient	NN
37894	308	35	.	.	.
37894	309	1	These	these	DT
37894	309	2	two	two	CD
37894	309	3	factors	factor	NNS
37894	309	4	can	can	MD
37894	309	5	not	not	RB
37894	309	6	be	be	VB
37894	309	7	dissociated	dissociate	VBN
37894	309	8	by	by	IN
37894	309	9	any	any	DT
37894	309	10	technique	technique	NN
37894	309	11	yet	yet	RB
37894	309	12	developed	develop	VBN
37894	309	13	.	.	.
37894	310	1	All	all	DT
37894	310	2	we	-PRON-	PRP
37894	310	3	can	can	MD
37894	310	4	do	do	VB
37894	310	5	is	be	VBZ
37894	310	6	to	to	TO
37894	310	7	compute	compute	VB
37894	310	8	what	what	WP
37894	310	9	a	a	DT
37894	310	10	bird	bird	NN
37894	310	11	's	's	POS
37894	310	12	course	course	NN
37894	310	13	would	would	MD
37894	310	14	be	be	VB
37894	310	15	,	,	,
37894	310	16	if	if	IN
37894	310	17	it	-PRON-	PRP
37894	310	18	were	be	VBD
37894	310	19	flying	fly	VBG
37894	310	20	horizontal	horizontal	RB
37894	310	21	to	to	IN
37894	310	22	the	the	DT
37894	310	23	earth	earth	NN
37894	310	24	during	during	IN
37894	310	25	the	the	DT
37894	310	26	interval	interval	NN
37894	310	27	it	-PRON-	PRP
37894	310	28	passes	pass	VBZ
37894	310	29	before	before	IN
37894	310	30	the	the	DT
37894	310	31	moon	moon	NN
37894	310	32	.	.	.
37894	311	1	We	-PRON-	PRP
37894	311	2	can	can	MD
37894	311	3	not	not	RB
37894	311	4	reasonably	reasonably	RB
37894	311	5	assume	assume	VB
37894	311	6	,	,	,
37894	311	7	of	of	IN
37894	311	8	course	course	NN
37894	311	9	,	,	,
37894	311	10	that	that	IN
37894	311	11	all	all	DT
37894	311	12	nocturnal	nocturnal	JJ
37894	311	13	migration	migration	NN
37894	311	14	takes	take	VBZ
37894	311	15	place	place	NN
37894	311	16	on	on	IN
37894	311	17	level	level	NN
37894	311	18	planes	plane	NNS
37894	311	19	,	,	,
37894	311	20	even	even	RB
37894	311	21	though	though	IN
37894	311	22	the	the	DT
37894	311	23	local	local	JJ
37894	311	24	distractions	distraction	NNS
37894	311	25	so	so	RB
37894	311	26	often	often	RB
37894	311	27	associated	associate	VBN
37894	311	28	with	with	IN
37894	311	29	sloping	slope	VBG
37894	311	30	flight	flight	NN
37894	311	31	during	during	IN
37894	311	32	the	the	DT
37894	311	33	day	day	NN
37894	311	34	are	be	VBP
37894	311	35	minimized	minimize	VBN
37894	311	36	in	in	IN
37894	311	37	the	the	DT
37894	311	38	case	case	NN
37894	311	39	of	of	IN
37894	311	40	migrating	migrate	VBG
37894	311	41	birds	bird	NNS
37894	311	42	proceeding	proceed	VBG
37894	311	43	toward	toward	IN
37894	311	44	a	a	DT
37894	311	45	distant	distant	JJ
37894	311	46	destination	destination	NN
37894	311	47	in	in	IN
37894	311	48	darkness	darkness	NN
37894	311	49	.	.	.
37894	312	1	We	-PRON-	PRP
37894	312	2	may	may	MD
37894	312	3	more	more	RBR
37894	312	4	safely	safely	RB
37894	312	5	suppose	suppose	VB
37894	312	6	,	,	,
37894	312	7	however	however	RB
37894	312	8	,	,	,
37894	312	9	that	that	IN
37894	312	10	deviations	deviation	NNS
37894	312	11	from	from	IN
37894	312	12	the	the	DT
37894	312	13	horizontal	horizontal	JJ
37894	312	14	are	be	VBP
37894	312	15	random	random	JJ
37894	312	16	in	in	IN
37894	312	17	nature	nature	NN
37894	312	18	,	,	,
37894	312	19	that	that	IN
37894	312	20	it	-PRON-	PRP
37894	312	21	is	be	VBZ
37894	312	22	mainly	mainly	RB
37894	312	23	a	a	DT
37894	312	24	matter	matter	NN
37894	312	25	of	of	IN
37894	312	26	chance	chance	NN
37894	312	27	whether	whether	IN
37894	312	28	the	the	DT
37894	312	29	observer	observer	NN
37894	312	30	happens	happen	VBZ
37894	312	31	to	to	TO
37894	312	32	see	see	VB
37894	312	33	an	an	DT
37894	312	34	ascending	ascend	VBG
37894	312	35	segment	segment	NN
37894	312	36	of	of	IN
37894	312	37	flight	flight	NN
37894	312	38	or	or	CC
37894	312	39	a	a	DT
37894	312	40	descending	descend	VBG
37894	312	41	one	one	NN
37894	312	42	.	.	.
37894	313	1	Over	over	IN
37894	313	2	a	a	DT
37894	313	3	series	series	NN
37894	313	4	of	of	IN
37894	313	5	observations	observation	NNS
37894	313	6	,	,	,
37894	313	7	we	-PRON-	PRP
37894	313	8	may	may	MD
37894	313	9	expect	expect	VB
37894	313	10	a	a	DT
37894	313	11	fairly	fairly	RB
37894	313	12	even	even	RB
37894	313	13	distribution	distribution	NN
37894	313	14	of	of	IN
37894	313	15	ups	up	NNS
37894	313	16	and	and	CC
37894	313	17	downs	down	NNS
37894	313	18	.	.	.
37894	314	1	It	-PRON-	PRP
37894	314	2	follows	follow	VBZ
37894	314	3	that	that	IN
37894	314	4	,	,	,
37894	314	5	although	although	IN
37894	314	6	departures	departure	NNS
37894	314	7	from	from	IN
37894	314	8	the	the	DT
37894	314	9	horizontal	horizontal	JJ
37894	314	10	may	may	MD
37894	314	11	distort	distort	VB
37894	314	12	individual	individual	JJ
37894	314	13	directions	direction	NNS
37894	314	14	,	,	,
37894	314	15	they	-PRON-	PRP
37894	314	16	tend	tend	VBP
37894	314	17	to	to	TO
37894	314	18	average	average	VB
37894	314	19	out	out	RP
37894	314	20	in	in	IN
37894	314	21	the	the	DT
37894	314	22	computed	computed	JJ
37894	314	23	trend	trend	NN
37894	314	24	of	of	IN
37894	314	25	the	the	DT
37894	314	26	mean	mean	NN
37894	314	27	.	.	.
37894	315	1	The	the	DT
37894	315	2	working	working	NN
37894	315	3	of	of	IN
37894	315	4	this	this	DT
37894	315	5	principle	principle	NN
37894	315	6	applied	apply	VBD
37894	315	7	to	to	IN
37894	315	8	the	the	DT
37894	315	9	undulating	undulating	JJ
37894	315	10	flight	flight	NN
37894	315	11	of	of	IN
37894	315	12	the	the	DT
37894	315	13	Goldfinch	Goldfinch	NNP
37894	315	14	(	(	-LRB-
37894	315	15	_	_	NNP
37894	315	16	Spinus	Spinus	NNP
37894	315	17	_	_	NNP
37894	315	18	)	)	-RRB-
37894	315	19	is	be	VBZ
37894	315	20	illustrated	illustrate	VBN
37894	315	21	in	in	IN
37894	315	22	Figure	Figure	NNP
37894	315	23	9	9	CD
37894	315	24	.	.	.
37894	316	1	[	[	-LRB-
37894	316	2	Illustration	illustration	NN
37894	316	3	:	:	:
37894	316	4	FIG	FIG	NNP
37894	316	5	.	.	.
37894	317	1	9	9	CD
37894	317	2	.	.	.
37894	318	1	The	the	DT
37894	318	2	effect	effect	NN
37894	318	3	of	of	IN
37894	318	4	vertical	vertical	JJ
37894	318	5	components	component	NNS
37894	318	6	in	in	IN
37894	318	7	bird	bird	NN
37894	318	8	flight	flight	NN
37894	318	9	.	.	.
37894	319	1	The	the	DT
37894	319	2	four	four	CD
37894	319	3	diagrams	diagram	NNS
37894	319	4	illustrate	illustrate	VBP
37894	319	5	various	various	JJ
37894	319	6	effects	effect	NNS
37894	319	7	that	that	WDT
37894	319	8	might	may	MD
37894	319	9	result	result	VB
37894	319	10	if	if	IN
37894	319	11	a	a	DT
37894	319	12	bird	bird	NN
37894	319	13	with	with	IN
37894	319	14	an	an	DT
37894	319	15	undulating	undulating	JJ
37894	319	16	flight	flight	NN
37894	319	17	,	,	,
37894	319	18	such	such	JJ
37894	319	19	as	as	IN
37894	319	20	a	a	DT
37894	319	21	Goldfinch	Goldfinch	NNP
37894	319	22	,	,	,
37894	319	23	flew	fly	VBD
37894	319	24	before	before	IN
37894	319	25	a	a	DT
37894	319	26	moon	moon	NN
37894	319	27	45	45	CD
37894	319	28	°	°	NNS
37894	319	29	above	above	IN
37894	319	30	the	the	DT
37894	319	31	horizon	horizon	NN
37894	319	32	.	.	.
37894	320	1	In	in	IN
37894	320	2	each	each	DT
37894	320	3	case	case	NN
37894	320	4	the	the	DT
37894	320	5	original	original	JJ
37894	320	6	profile	profile	NN
37894	320	7	of	of	IN
37894	320	8	the	the	DT
37894	320	9	pathways	pathway	NNS
37894	320	10	,	,	,
37894	320	11	illustrated	illustrate	VBN
37894	320	12	against	against	IN
37894	320	13	the	the	DT
37894	320	14	dark	dark	JJ
37894	320	15	background	background	NN
37894	320	16	,	,	,
37894	320	17	is	be	VBZ
37894	320	18	flattened	flatten	VBN
37894	320	19	considerably	considerably	RB
37894	320	20	as	as	IN
37894	320	21	a	a	DT
37894	320	22	result	result	NN
37894	320	23	of	of	IN
37894	320	24	projection	projection	NN
37894	320	25	.	.	.
37894	321	1	In	in	IN
37894	321	2	the	the	DT
37894	321	3	situation	situation	NN
37894	321	4	shown	show	VBN
37894	321	5	in	in	IN
37894	321	6	Diagram	Diagram	NNP
37894	321	7	A	A	NNP
37894	321	8	,	,	,
37894	321	9	where	where	WRB
37894	321	10	the	the	DT
37894	321	11	high	high	JJ
37894	321	12	point	point	NN
37894	321	13	of	of	IN
37894	321	14	the	the	DT
37894	321	15	flight	flight	NN
37894	321	16	line	line	NN
37894	321	17	,	,	,
37894	321	18	GHJ	GHJ	NNP
37894	321	19	,	,	,
37894	321	20	occurs	occur	VBZ
37894	321	21	within	within	IN
37894	321	22	the	the	DT
37894	321	23	field	field	NN
37894	321	24	of	of	IN
37894	321	25	the	the	DT
37894	321	26	telescope	telescope	NN
37894	321	27	,	,	,
37894	321	28	it	-PRON-	PRP
37894	321	29	is	be	VBZ
37894	321	30	not	not	RB
37894	321	31	only	only	RB
37894	321	32	obvious	obvious	JJ
37894	321	33	that	that	IN
37894	321	34	a	a	DT
37894	321	35	deviation	deviation	NN
37894	321	36	is	be	VBZ
37894	321	37	involved	involve	VBN
37894	321	38	,	,	,
37894	321	39	but	but	CC
37894	321	40	the	the	DT
37894	321	41	line	line	NN
37894	321	42	GJ	GJ	NNP
37894	321	43	drawn	draw	VBN
37894	321	44	between	between	IN
37894	321	45	the	the	DT
37894	321	46	entry	entry	NN
37894	321	47	and	and	CC
37894	321	48	departure	departure	NN
37894	321	49	points	point	NNS
37894	321	50	coincides	coincide	VBZ
37894	321	51	with	with	IN
37894	321	52	the	the	DT
37894	321	53	normal	normal	JJ
37894	321	54	coördinates	coördinate	NNS
37894	321	55	of	of	IN
37894	321	56	a	a	DT
37894	321	57	bird	bird	NN
37894	321	58	proceeding	proceeding	NN
37894	321	59	on	on	IN
37894	321	60	a	a	DT
37894	321	61	horizontal	horizontal	JJ
37894	321	62	plane	plane	NN
37894	321	63	.	.	.
37894	322	1	In	in	IN
37894	322	2	Diagrams	Diagrams	NNP
37894	322	3	B	B	NNP
37894	322	4	and	and	CC
37894	322	5	C	C	NNP
37894	322	6	,	,	,
37894	322	7	one	one	CD
37894	322	8	which	which	WDT
37894	322	9	catches	catch	VBZ
37894	322	10	an	an	DT
37894	322	11	upward	upward	JJ
37894	322	12	segment	segment	NN
37894	322	13	of	of	IN
37894	322	14	flight	flight	NN
37894	322	15	,	,	,
37894	322	16	and	and	CC
37894	322	17	the	the	DT
37894	322	18	other	other	JJ
37894	322	19	,	,	,
37894	322	20	a	a	DT
37894	322	21	downward	downward	JJ
37894	322	22	segment	segment	NN
37894	322	23	,	,	,
37894	322	24	the	the	DT
37894	322	25	nature	nature	NN
37894	322	26	of	of	IN
37894	322	27	the	the	DT
37894	322	28	deviation	deviation	NN
37894	322	29	would	would	MD
37894	322	30	not	not	RB
37894	322	31	be	be	VB
37894	322	32	detectable	detectable	JJ
37894	322	33	,	,	,
37894	322	34	and	and	CC
37894	322	35	an	an	DT
37894	322	36	incorrect	incorrect	JJ
37894	322	37	direction	direction	NN
37894	322	38	would	would	MD
37894	322	39	be	be	VB
37894	322	40	computed	compute	VBN
37894	322	41	from	from	IN
37894	322	42	the	the	DT
37894	322	43	coördinates	coördinate	NNS
37894	322	44	.	.	.
37894	323	1	Over	over	IN
37894	323	2	a	a	DT
37894	323	3	series	series	NN
37894	323	4	of	of	IN
37894	323	5	observations	observation	NNS
37894	323	6	,	,	,
37894	323	7	including	include	VBG
37894	323	8	many	many	JJ
37894	323	9	Goldfinches	goldfinch	NNS
37894	323	10	,	,	,
37894	323	11	one	one	PRP
37894	323	12	would	would	MD
37894	323	13	expect	expect	VB
37894	323	14	a	a	DT
37894	323	15	fairly	fairly	RB
37894	323	16	even	even	RB
37894	323	17	distribution	distribution	NN
37894	323	18	of	of	IN
37894	323	19	ups	up	NNS
37894	323	20	and	and	CC
37894	323	21	downs	down	NNS
37894	323	22	.	.	.
37894	324	1	Since	since	IN
37894	324	2	the	the	DT
37894	324	3	average	average	NN
37894	324	4	between	between	IN
37894	324	5	the	the	DT
37894	324	6	coördinate	coördinate	JJ
37894	324	7	angles	angle	NNS
37894	324	8	in	in	IN
37894	324	9	Diagrams	Diagrams	NNP
37894	324	10	B	B	NNP
37894	324	11	and	and	CC
37894	324	12	C	C	NNP
37894	324	13	,	,	,
37894	324	14	+19	+19	CD
37894	324	15	°	°	,
37894	324	16	and	and	CC
37894	324	17	-19	-19	NNP
37894	324	18	°	°	NNP
37894	324	19	,	,	,
37894	324	20	is	be	VBZ
37894	324	21	the	the	DT
37894	324	22	angle	angle	NN
37894	324	23	of	of	IN
37894	324	24	the	the	DT
37894	324	25	true	true	JJ
37894	324	26	coördinate	coördinate	NN
37894	324	27	,	,	,
37894	324	28	we	-PRON-	PRP
37894	324	29	have	have	VBP
37894	324	30	here	here	RB
37894	324	31	a	a	DT
37894	324	32	situation	situation	NN
37894	324	33	where	where	WRB
37894	324	34	the	the	DT
37894	324	35	errors	error	NNS
37894	324	36	tend	tend	VBP
37894	324	37	to	to	TO
37894	324	38	compensate	compensate	VB
37894	324	39	.	.	.
37894	325	1	In	in	IN
37894	325	2	Diagram	Diagram	NNP
37894	325	3	D	D	NNP
37894	325	4	,	,	,
37894	325	5	where	where	WRB
37894	325	6	the	the	DT
37894	325	7	bird	bird	NN
37894	325	8	is	be	VBZ
37894	325	9	so	so	RB
37894	325	10	far	far	RB
37894	325	11	away	away	RB
37894	325	12	that	that	IN
37894	325	13	several	several	JJ
37894	325	14	undulations	undulation	NNS
37894	325	15	are	be	VBP
37894	325	16	encompassed	encompass	VBN
37894	325	17	within	within	IN
37894	325	18	the	the	DT
37894	325	19	diameter	diameter	NN
37894	325	20	of	of	IN
37894	325	21	the	the	DT
37894	325	22	field	field	NN
37894	325	23	of	of	IN
37894	325	24	view	view	NN
37894	325	25	,	,	,
37894	325	26	the	the	DT
37894	325	27	coördinate	coördinate	JJ
37894	325	28	readings	reading	NNS
37894	325	29	do	do	VBP
37894	325	30	not	not	RB
37894	325	31	differ	differ	VB
37894	325	32	materially	materially	RB
37894	325	33	from	from	IN
37894	325	34	those	those	DT
37894	325	35	of	of	IN
37894	325	36	a	a	DT
37894	325	37	straight	straight	JJ
37894	325	38	line	line	NN
37894	325	39	.	.	.
37894	325	40	]	]	-RRB-
37894	326	1	Since	since	IN
37894	326	2	_	_	NNP
37894	326	3	individually	individually	RB
37894	326	4	_	_	NNP
37894	326	5	computed	compute	VBD
37894	326	6	directions	direction	NNS
37894	326	7	are	be	VBP
37894	326	8	not	not	RB
37894	326	9	very	very	RB
37894	326	10	reliable	reliable	JJ
37894	326	11	in	in	IN
37894	326	12	any	any	DT
37894	326	13	event	event	NN
37894	326	14	,	,	,
37894	326	15	little	little	JJ
37894	326	16	is	be	VBZ
37894	326	17	to	to	TO
37894	326	18	be	be	VB
37894	326	19	lost	lose	VBN
37894	326	20	by	by	IN
37894	326	21	treating	treat	VBG
37894	326	22	the	the	DT
37894	326	23	observed	observed	JJ
37894	326	24	pathways	pathway	NNS
37894	326	25	in	in	IN
37894	326	26	groups	group	NNS
37894	326	27	.	.	.
37894	327	1	Consequently	consequently	RB
37894	327	2	,	,	,
37894	327	3	the	the	DT
37894	327	4	courses	course	NNS
37894	327	5	of	of	IN
37894	327	6	all	all	PDT
37894	327	7	the	the	DT
37894	327	8	birds	bird	NNS
37894	327	9	seen	see	VBN
37894	327	10	in	in	IN
37894	327	11	a	a	DT
37894	327	12	one	one	CD
37894	327	13	-	-	HYPH
37894	327	14	hour	hour	NN
37894	327	15	period	period	NN
37894	327	16	may	may	MD
37894	327	17	be	be	VB
37894	327	18	computed	compute	VBN
37894	327	19	according	accord	VBG
37894	327	20	to	to	IN
37894	327	21	the	the	DT
37894	327	22	position	position	NN
37894	327	23	of	of	IN
37894	327	24	the	the	DT
37894	327	25	moon	moon	NN
37894	327	26	at	at	IN
37894	327	27	the	the	DT
37894	327	28	middle	middle	NN
37894	327	29	of	of	IN
37894	327	30	the	the	DT
37894	327	31	interval	interval	NN
37894	327	32	and	and	CC
37894	327	33	expressed	express	VBN
37894	327	34	in	in	IN
37894	327	35	terms	term	NNS
37894	327	36	of	of	IN
37894	327	37	their	-PRON-	PRP$
37894	327	38	general	general	JJ
37894	327	39	positions	position	NNS
37894	327	40	on	on	IN
37894	327	41	the	the	DT
37894	327	42	compass	compass	NN
37894	327	43	,	,	,
37894	327	44	rather	rather	RB
37894	327	45	than	than	IN
37894	327	46	their	-PRON-	PRP$
37894	327	47	exact	exact	JJ
37894	327	48	headings	heading	NNS
37894	327	49	.	.	.
37894	328	1	For	for	IN
37894	328	2	this	this	DT
37894	328	3	latter	latter	JJ
37894	328	4	purpose	purpose	NN
37894	328	5	,	,	,
37894	328	6	the	the	DT
37894	328	7	compass	compass	NN
37894	328	8	has	have	VBZ
37894	328	9	been	be	VBN
37894	328	10	divided	divide	VBN
37894	328	11	into	into	IN
37894	328	12	twelve	twelve	CD
37894	328	13	fixed	fix	VBN
37894	328	14	sectors	sector	NNS
37894	328	15	,	,	,
37894	328	16	22	22	CD
37894	328	17	-	-	HYPH
37894	328	18	1/2	1/2	CD
37894	328	19	degrees	degree	NNS
37894	328	20	wide	wide	JJ
37894	328	21	.	.	.
37894	329	1	The	the	DT
37894	329	2	trends	trend	NNS
37894	329	3	of	of	IN
37894	329	4	the	the	DT
37894	329	5	flight	flight	NN
37894	329	6	paths	path	NNS
37894	329	7	are	be	VBP
37894	329	8	identified	identify	VBN
37894	329	9	by	by	IN
37894	329	10	the	the	DT
37894	329	11	mid	mid	NN
37894	329	12	-	-	NN
37894	329	13	direction	direction	NN
37894	329	14	of	of	IN
37894	329	15	the	the	DT
37894	329	16	sector	sector	NN
37894	329	17	into	into	IN
37894	329	18	which	which	WDT
37894	329	19	they	-PRON-	PRP
37894	329	20	fall	fall	VBP
37894	329	21	.	.	.
37894	330	1	The	the	DT
37894	330	2	sectoring	sectoring	JJ
37894	330	3	method	method	NN
37894	330	4	is	be	VBZ
37894	330	5	described	describe	VBN
37894	330	6	in	in	IN
37894	330	7	detail	detail	NN
37894	330	8	in	in	IN
37894	330	9	the	the	DT
37894	330	10	section	section	NN
37894	330	11	on	on	IN
37894	330	12	procedures	procedure	NNS
37894	330	13	.	.	.
37894	331	1	[	[	-LRB-
37894	331	2	Illustration	illustration	NN
37894	331	3	:	:	:
37894	331	4	Fig	Fig	NNP
37894	331	5	.	.	.
37894	332	1	10	10	CD
37894	332	2	.	.	.
37894	333	1	The	the	DT
37894	333	2	interceptory	interceptory	JJ
37894	333	3	potential	potential	NN
37894	333	4	of	of	IN
37894	333	5	slanting	slant	VBG
37894	333	6	lines	line	NNS
37894	333	7	.	.	.
37894	334	1	The	the	DT
37894	334	2	diagram	diagram	NN
37894	334	3	deals	deal	VBZ
37894	334	4	with	with	IN
37894	334	5	one	one	CD
37894	334	6	direction	direction	NN
37894	334	7	of	of	IN
37894	334	8	flight	flight	NN
37894	334	9	and	and	CC
37894	334	10	its	-PRON-	PRP$
37894	334	11	incidence	incidence	NN
37894	334	12	across	across	IN
37894	334	13	lines	line	NNS
37894	334	14	of	of	IN
37894	334	15	six	six	CD
37894	334	16	different	different	JJ
37894	334	17	slants	slant	NNS
37894	334	18	,	,	,
37894	334	19	lines	line	NNS
37894	334	20	of	of	IN
37894	334	21	identical	identical	JJ
37894	334	22	length	length	NN
37894	334	23	oriented	orient	VBN
37894	334	24	in	in	IN
37894	334	25	six	six	CD
37894	334	26	different	different	JJ
37894	334	27	ways	way	NNS
37894	334	28	.	.	.
37894	335	1	Obviously	obviously	RB
37894	335	2	,	,	,
37894	335	3	the	the	DT
37894	335	4	number	number	NN
37894	335	5	of	of	IN
37894	335	6	birds	bird	NNS
37894	335	7	that	that	WDT
37894	335	8	cross	cross	VBP
37894	335	9	a	a	DT
37894	335	10	line	line	NN
37894	335	11	depends	depend	VBZ
37894	335	12	not	not	RB
37894	335	13	only	only	RB
37894	335	14	on	on	IN
37894	335	15	the	the	DT
37894	335	16	length	length	NN
37894	335	17	of	of	IN
37894	335	18	the	the	DT
37894	335	19	line	line	NN
37894	335	20	,	,	,
37894	335	21	but	but	CC
37894	335	22	also	also	RB
37894	335	23	on	on	IN
37894	335	24	its	-PRON-	PRP$
37894	335	25	slant	slant	NN
37894	335	26	with	with	IN
37894	335	27	respect	respect	NN
37894	335	28	to	to	IN
37894	335	29	the	the	DT
37894	335	30	flight	flight	NN
37894	335	31	paths	path	NNS
37894	335	32	.	.	.
37894	335	33	]	]	-RRB-
37894	336	1	The	the	DT
37894	336	2	problem	problem	NN
37894	336	3	remains	remain	VBZ
37894	336	4	of	of	IN
37894	336	5	converting	convert	VBG
37894	336	6	the	the	DT
37894	336	7	number	number	NN
37894	336	8	of	of	IN
37894	336	9	birds	bird	NNS
37894	336	10	involved	involve	VBN
37894	336	11	in	in	IN
37894	336	12	each	each	DT
37894	336	13	directional	directional	JJ
37894	336	14	trend	trend	NN
37894	336	15	to	to	IN
37894	336	16	a	a	DT
37894	336	17	fixed	fix	VBN
37894	336	18	standard	standard	NN
37894	336	19	of	of	IN
37894	336	20	measurement	measurement	NN
37894	336	21	.	.	.
37894	337	1	Figure	figure	NN
37894	337	2	7A	7a	NN
37894	337	3	contains	contain	VBZ
37894	337	4	the	the	DT
37894	337	5	partial	partial	JJ
37894	337	6	elements	element	NNS
37894	337	7	of	of	IN
37894	337	8	a	a	DT
37894	337	9	solution	solution	NN
37894	337	10	.	.	.
37894	338	1	All	all	DT
37894	338	2	of	of	IN
37894	338	3	the	the	DT
37894	338	4	west	west	JJ
37894	338	5	-	-	HYPH
37894	338	6	east	east	JJ
37894	338	7	flight	flight	NN
37894	338	8	paths	path	NNS
37894	338	9	that	that	WDT
37894	338	10	cross	cross	VBP
37894	338	11	the	the	DT
37894	338	12	large	large	JJ
37894	338	13	square	square	NN
37894	338	14	also	also	RB
37894	338	15	cross	cross	VBP
37894	338	16	one	one	CD
37894	338	17	of	of	IN
37894	338	18	its	-PRON-	PRP$
37894	338	19	mile	mile	NN
37894	338	20	-	-	HYPH
37894	338	21	long	long	JJ
37894	338	22	sides	side	NNS
37894	338	23	and	and	CC
37894	338	24	suggest	suggest	VBP
37894	338	25	the	the	DT
37894	338	26	practicability	practicability	NN
37894	338	27	of	of	IN
37894	338	28	expressing	express	VBG
37894	338	29	the	the	DT
37894	338	30	amount	amount	NN
37894	338	31	of	of	IN
37894	338	32	migration	migration	NN
37894	338	33	in	in	IN
37894	338	34	any	any	DT
37894	338	35	certain	certain	JJ
37894	338	36	direction	direction	NN
37894	338	37	in	in	IN
37894	338	38	terms	term	NNS
37894	338	39	of	of	IN
37894	338	40	the	the	DT
37894	338	41	assumed	assumed	JJ
37894	338	42	quantity	quantity	NN
37894	338	43	passing	pass	VBG
37894	338	44	over	over	IN
37894	338	45	a	a	DT
37894	338	46	one	one	CD
37894	338	47	-	-	HYPH
37894	338	48	mile	mile	NN
37894	338	49	line	line	NN
37894	338	50	in	in	IN
37894	338	51	a	a	DT
37894	338	52	given	give	VBN
37894	338	53	interval	interval	NN
37894	338	54	of	of	IN
37894	338	55	time	time	NN
37894	338	56	.	.	.
37894	339	1	However	however	RB
37894	339	2	,	,	,
37894	339	3	many	many	JJ
37894	339	4	lines	line	NNS
37894	339	5	of	of	IN
37894	339	6	that	that	DT
37894	339	7	length	length	NN
37894	339	8	can	can	MD
37894	339	9	be	be	VB
37894	339	10	included	include	VBN
37894	339	11	within	within	IN
37894	339	12	the	the	DT
37894	339	13	same	same	JJ
37894	339	14	set	set	NN
37894	339	15	of	of	IN
37894	339	16	flight	flight	NN
37894	339	17	paths	path	NNS
37894	339	18	(	(	-LRB-
37894	339	19	Figure	figure	NN
37894	339	20	10	10	CD
37894	339	21	)	)	-RRB-
37894	339	22	;	;	:
37894	339	23	and	and	CC
37894	339	24	the	the	DT
37894	339	25	number	number	NN
37894	339	26	of	of	IN
37894	339	27	birds	bird	NNS
37894	339	28	intercepted	intercept	VBN
37894	339	29	depends	depend	VBZ
37894	339	30	in	in	IN
37894	339	31	part	part	NN
37894	339	32	upon	upon	IN
37894	339	33	the	the	DT
37894	339	34	orientation	orientation	NN
37894	339	35	of	of	IN
37894	339	36	the	the	DT
37894	339	37	line	line	NN
37894	339	38	.	.	.
37894	340	1	The	the	DT
37894	340	2	90	90	CD
37894	340	3	°	°	NN
37894	340	4	line	line	NN
37894	340	5	is	be	VBZ
37894	340	6	the	the	DT
37894	340	7	only	only	JJ
37894	340	8	one	one	CD
37894	340	9	that	that	WDT
37894	340	10	fully	fully	RB
37894	340	11	measures	measure	VBZ
37894	340	12	the	the	DT
37894	340	13	amount	amount	NN
37894	340	14	of	of	IN
37894	340	15	flight	flight	NN
37894	340	16	per	per	IN
37894	340	17	linear	linear	JJ
37894	340	18	unit	unit	NN
37894	340	19	of	of	IN
37894	340	20	front	front	NN
37894	340	21	;	;	:
37894	340	22	and	and	CC
37894	340	23	so	so	RB
37894	340	24	I	-PRON-	PRP
37894	340	25	have	have	VBP
37894	340	26	chosen	choose	VBN
37894	340	27	as	as	IN
37894	340	28	a	a	DT
37894	340	29	standard	standard	NN
37894	340	30	an	an	DT
37894	340	31	imaginary	imaginary	JJ
37894	340	32	mile	mile	NN
37894	340	33	on	on	IN
37894	340	34	the	the	DT
37894	340	35	earth	earth	NN
37894	340	36	's	's	POS
37894	340	37	surface	surface	NN
37894	340	38	lying	lie	VBG
37894	340	39	at	at	IN
37894	340	40	right	right	JJ
37894	340	41	angles	angle	NNS
37894	340	42	to	to	IN
37894	340	43	the	the	DT
37894	340	44	direction	direction	NN
37894	340	45	in	in	IN
37894	340	46	which	which	WDT
37894	340	47	the	the	DT
37894	340	48	birds	bird	NNS
37894	340	49	are	be	VBP
37894	340	50	traveling	travel	VBG
37894	340	51	.	.	.
37894	341	1	_	_	NNP
37894	341	2	Definitions	Definitions	NNPS
37894	341	3	of	of	IN
37894	341	4	Flight	Flight	NNP
37894	341	5	Density	density	NN
37894	341	6	_	_	NNP
37894	341	7	When	when	WRB
37894	341	8	the	the	DT
37894	341	9	count	count	NN
37894	341	10	of	of	IN
37894	341	11	birds	bird	NNS
37894	341	12	in	in	IN
37894	341	13	the	the	DT
37894	341	14	cone	cone	NN
37894	341	15	of	of	IN
37894	341	16	observation	observation	NN
37894	341	17	is	be	VBZ
37894	341	18	used	use	VBN
37894	341	19	as	as	IN
37894	341	20	a	a	DT
37894	341	21	sample	sample	NN
37894	341	22	to	to	TO
37894	341	23	determine	determine	VB
37894	341	24	the	the	DT
37894	341	25	theoretical	theoretical	JJ
37894	341	26	number	number	NN
37894	341	27	in	in	IN
37894	341	28	a	a	DT
37894	341	29	sector	sector	NN
37894	341	30	passing	pass	VBG
37894	341	31	over	over	IN
37894	341	32	such	such	PDT
37894	341	33	a	a	DT
37894	341	34	mile	mile	NN
37894	341	35	line	line	NN
37894	341	36	,	,	,
37894	341	37	the	the	DT
37894	341	38	resulting	result	VBG
37894	341	39	quantity	quantity	NN
37894	341	40	represents	represent	VBZ
37894	341	41	what	what	WP
37894	341	42	I	-PRON-	PRP
37894	341	43	shall	shall	MD
37894	341	44	call	call	VB
37894	341	45	a	a	DT
37894	341	46	Sector	Sector	NNP
37894	341	47	Density	density	NN
37894	341	48	.	.	.
37894	342	1	It	-PRON-	PRP
37894	342	2	is	be	VBZ
37894	342	3	one	one	CD
37894	342	4	of	of	IN
37894	342	5	several	several	JJ
37894	342	6	expressions	expression	NNS
37894	342	7	of	of	IN
37894	342	8	the	the	DT
37894	342	9	more	more	RBR
37894	342	10	general	general	JJ
37894	342	11	concept	concept	NN
37894	342	12	of	of	IN
37894	342	13	Flight	Flight	NNP
37894	342	14	Density	Density	NNP
37894	342	15	,	,	,
37894	342	16	which	which	WDT
37894	342	17	may	may	MD
37894	342	18	be	be	VB
37894	342	19	defined	define	VBN
37894	342	20	as	as	IN
37894	342	21	the	the	DT
37894	342	22	passage	passage	NN
37894	342	23	of	of	IN
37894	342	24	migration	migration	NN
37894	342	25	past	past	IN
37894	342	26	an	an	DT
37894	342	27	observation	observation	NN
37894	342	28	station	station	NN
37894	342	29	stated	state	VBN
37894	342	30	in	in	IN
37894	342	31	terms	term	NNS
37894	342	32	of	of	IN
37894	342	33	the	the	DT
37894	342	34	theoretical	theoretical	JJ
37894	342	35	number	number	NN
37894	342	36	of	of	IN
37894	342	37	birds	bird	NNS
37894	342	38	flying	fly	VBG
37894	342	39	over	over	IN
37894	342	40	a	a	DT
37894	342	41	one	one	CD
37894	342	42	-	-	HYPH
37894	342	43	mile	mile	NN
37894	342	44	line	line	NN
37894	342	45	on	on	IN
37894	342	46	the	the	DT
37894	342	47	earth	earth	NN
37894	342	48	's	's	POS
37894	342	49	surface	surface	NN
37894	342	50	in	in	IN
37894	342	51	a	a	DT
37894	342	52	given	give	VBN
37894	342	53	interval	interval	NN
37894	342	54	of	of	IN
37894	342	55	time	time	NN
37894	342	56	.	.	.
37894	343	1	Note	note	VB
37894	343	2	that	that	IN
37894	343	3	a	a	DT
37894	343	4	flight	flight	NN
37894	343	5	density	density	NN
37894	343	6	is	be	VBZ
37894	343	7	primarily	primarily	RB
37894	343	8	a	a	DT
37894	343	9	theoretical	theoretical	JJ
37894	343	10	number	number	NN
37894	343	11	,	,	,
37894	343	12	a	a	DT
37894	343	13	statistical	statistical	JJ
37894	343	14	expression	expression	NN
37894	343	15	,	,	,
37894	343	16	a	a	DT
37894	343	17	_	_	NNP
37894	343	18	rate	rate	NN
37894	343	19	_	_	NNP
37894	343	20	of	of	IN
37894	343	21	passage	passage	NN
37894	343	22	.	.	.
37894	344	1	It	-PRON-	PRP
37894	344	2	states	state	VBZ
37894	344	3	merely	merely	RB
37894	344	4	that	that	IN
37894	344	5	birds	bird	NNS
37894	344	6	were	be	VBD
37894	344	7	moving	move	VBG
37894	344	8	through	through	IN
37894	344	9	the	the	DT
37894	344	10	effective	effective	JJ
37894	344	11	field	field	NN
37894	344	12	of	of	IN
37894	344	13	observation	observation	NN
37894	344	14	at	at	IN
37894	344	15	the	the	DT
37894	344	16	_	_	NNP
37894	344	17	rate	rate	NN
37894	344	18	_	_	NNP
37894	344	19	of	of	IN
37894	344	20	so	so	RB
37894	344	21	many	many	JJ
37894	344	22	per	per	IN
37894	344	23	mile	mile	NN
37894	344	24	per	per	IN
37894	344	25	unit	unit	NN
37894	344	26	of	of	IN
37894	344	27	time	time	NN
37894	344	28	.	.	.
37894	345	1	It	-PRON-	PRP
37894	345	2	may	may	MD
37894	345	3	or	or	CC
37894	345	4	may	may	MD
37894	345	5	not	not	RB
37894	345	6	closely	closely	RB
37894	345	7	express	express	VB
37894	345	8	the	the	DT
37894	345	9	amount	amount	NN
37894	345	10	of	of	IN
37894	345	11	migration	migration	NN
37894	345	12	occurring	occur	VBG
37894	345	13	over	over	IN
37894	345	14	an	an	DT
37894	345	15	actual	actual	JJ
37894	345	16	mile	mile	NN
37894	345	17	or	or	CC
37894	345	18	series	series	NN
37894	345	19	of	of	IN
37894	345	20	miles	mile	NNS
37894	345	21	.	.	.
37894	346	1	The	the	DT
37894	346	2	extent	extent	NN
37894	346	3	to	to	TO
37894	346	4	which	which	WDT
37894	346	5	it	-PRON-	PRP
37894	346	6	does	do	VBZ
37894	346	7	so	so	RB
37894	346	8	is	be	VBZ
37894	346	9	to	to	TO
37894	346	10	be	be	VB
37894	346	11	decided	decide	VBN
37894	346	12	by	by	IN
37894	346	13	other	other	JJ
37894	346	14	general	general	JJ
37894	346	15	criteria	criterion	NNS
37894	346	16	and	and	CC
37894	346	17	by	by	IN
37894	346	18	the	the	DT
37894	346	19	circumstances	circumstance	NNS
37894	346	20	surrounding	surround	VBG
37894	346	21	a	a	DT
37894	346	22	given	give	VBN
37894	346	23	instance	instance	NN
37894	346	24	.	.	.
37894	347	1	Its	-PRON-	PRP$
37894	347	2	basic	basic	JJ
37894	347	3	function	function	NN
37894	347	4	is	be	VBZ
37894	347	5	to	to	TO
37894	347	6	take	take	VB
37894	347	7	counts	count	NNS
37894	347	8	of	of	IN
37894	347	9	birds	bird	NNS
37894	347	10	made	make	VBN
37894	347	11	at	at	IN
37894	347	12	different	different	JJ
37894	347	13	times	time	NNS
37894	347	14	and	and	CC
37894	347	15	at	at	IN
37894	347	16	different	different	JJ
37894	347	17	places	place	NNS
37894	347	18	,	,	,
37894	347	19	in	in	IN
37894	347	20	fields	field	NNS
37894	347	21	of	of	IN
37894	347	22	observation	observation	NN
37894	347	23	of	of	IN
37894	347	24	different	different	JJ
37894	347	25	sizes	size	NNS
37894	347	26	,	,	,
37894	347	27	and	and	CC
37894	347	28	to	to	TO
37894	347	29	put	put	VB
37894	347	30	them	-PRON-	PRP
37894	347	31	on	on	IN
37894	347	32	the	the	DT
37894	347	33	statistically	statistically	RB
37894	347	34	equal	equal	JJ
37894	347	35	footing	footing	NN
37894	347	36	that	that	WDT
37894	347	37	is	be	VBZ
37894	347	38	the	the	DT
37894	347	39	first	first	JJ
37894	347	40	requisite	requisite	NN
37894	347	41	of	of	IN
37894	347	42	any	any	DT
37894	347	43	sound	sound	JJ
37894	347	44	comparison	comparison	NN
37894	347	45	.	.	.
37894	348	1	The	the	DT
37894	348	2	idea	idea	NN
37894	348	3	of	of	IN
37894	348	4	a	a	DT
37894	348	5	one	one	CD
37894	348	6	-	-	HYPH
37894	348	7	mile	mile	NN
37894	348	8	line	line	NN
37894	348	9	as	as	IN
37894	348	10	a	a	DT
37894	348	11	standard	standard	JJ
37894	348	12	spacial	spacial	JJ
37894	348	13	measurement	measurement	NN
37894	348	14	is	be	VBZ
37894	348	15	an	an	DT
37894	348	16	integral	integral	JJ
37894	348	17	part	part	NN
37894	348	18	of	of	IN
37894	348	19	the	the	DT
37894	348	20	basic	basic	JJ
37894	348	21	concept	concept	NN
37894	348	22	,	,	,
37894	348	23	as	as	IN
37894	348	24	herein	herein	NNP
37894	348	25	propounded	propound	VBD
37894	348	26	.	.	.
37894	349	1	But	but	CC
37894	349	2	,	,	,
37894	349	3	within	within	IN
37894	349	4	these	these	DT
37894	349	5	limitations	limitation	NNS
37894	349	6	,	,	,
37894	349	7	flight	flight	NN
37894	349	8	density	density	NN
37894	349	9	may	may	MD
37894	349	10	be	be	VB
37894	349	11	expressed	express	VBN
37894	349	12	in	in	IN
37894	349	13	many	many	JJ
37894	349	14	different	different	JJ
37894	349	15	ways	way	NNS
37894	349	16	,	,	,
37894	349	17	distinguished	distinguish	VBN
37894	349	18	chiefly	chiefly	RB
37894	349	19	by	by	IN
37894	349	20	the	the	DT
37894	349	21	directions	direction	NNS
37894	349	22	included	include	VBN
37894	349	23	and	and	CC
37894	349	24	the	the	DT
37894	349	25	orientation	orientation	NN
37894	349	26	of	of	IN
37894	349	27	the	the	DT
37894	349	28	one	one	CD
37894	349	29	-	-	HYPH
37894	349	30	mile	mile	NN
37894	349	31	line	line	NN
37894	349	32	with	with	IN
37894	349	33	respect	respect	NN
37894	349	34	to	to	IN
37894	349	35	them	-PRON-	PRP
37894	349	36	.	.	.
37894	350	1	Three	three	CD
37894	350	2	such	such	JJ
37894	350	3	kinds	kind	NNS
37894	350	4	of	of	IN
37894	350	5	density	density	NN
37894	350	6	have	have	VBP
37894	350	7	been	be	VBN
37894	350	8	found	find	VBN
37894	350	9	extremely	extremely	RB
37894	350	10	useful	useful	JJ
37894	350	11	in	in	IN
37894	350	12	subsequent	subsequent	JJ
37894	350	13	analyses	analysis	NNS
37894	350	14	and	and	CC
37894	350	15	are	be	VBP
37894	350	16	extensively	extensively	RB
37894	350	17	employed	employ	VBN
37894	350	18	in	in	IN
37894	350	19	this	this	DT
37894	350	20	paper	paper	NN
37894	350	21	:	:	:
37894	350	22	Sector	sector	NN
37894	350	23	,	,	,
37894	350	24	Net	Net	NNP
37894	350	25	Trend	Trend	NNP
37894	350	26	,	,	,
37894	350	27	and	and	CC
37894	350	28	Station	Station	NNP
37894	350	29	Density	Density	NNP
37894	350	30	,	,	,
37894	350	31	or	or	CC
37894	350	32	Station	Station	NNP
37894	350	33	Magnitude	Magnitude	NNP
37894	350	34	.	.	.
37894	351	1	Sector	sector	NN
37894	351	2	Density	density	NN
37894	351	3	has	have	VBZ
37894	351	4	already	already	RB
37894	351	5	been	be	VBN
37894	351	6	referred	refer	VBN
37894	351	7	to	to	IN
37894	351	8	.	.	.
37894	352	1	It	-PRON-	PRP
37894	352	2	may	may	MD
37894	352	3	be	be	VB
37894	352	4	defined	define	VBN
37894	352	5	as	as	IN
37894	352	6	the	the	DT
37894	352	7	flight	flight	NN
37894	352	8	density	density	NN
37894	352	9	within	within	IN
37894	352	10	a	a	DT
37894	352	11	22	22	CD
37894	352	12	-	-	SYM
37894	352	13	1/2	1/2	CD
37894	352	14	°	°	,
37894	352	15	directional	directional	JJ
37894	352	16	spread	spread	NN
37894	352	17	,	,	,
37894	352	18	or	or	CC
37894	352	19	sector	sector	NN
37894	352	20	,	,	,
37894	352	21	measured	measure	VBN
37894	352	22	across	across	IN
37894	352	23	a	a	DT
37894	352	24	one	one	CD
37894	352	25	-	-	HYPH
37894	352	26	mile	mile	NN
37894	352	27	line	line	NN
37894	352	28	lying	lie	VBG
37894	352	29	at	at	IN
37894	352	30	right	right	JJ
37894	352	31	angles	angle	NNS
37894	352	32	to	to	IN
37894	352	33	the	the	DT
37894	352	34	mid	mid	NN
37894	352	35	-	-	NN
37894	352	36	direction	direction	NN
37894	352	37	of	of	IN
37894	352	38	the	the	DT
37894	352	39	sector	sector	NN
37894	352	40	.	.	.
37894	353	1	It	-PRON-	PRP
37894	353	2	is	be	VBZ
37894	353	3	the	the	DT
37894	353	4	basic	basic	JJ
37894	353	5	type	type	NN
37894	353	6	of	of	IN
37894	353	7	density	density	NN
37894	353	8	from	from	IN
37894	353	9	the	the	DT
37894	353	10	point	point	NN
37894	353	11	of	of	IN
37894	353	12	view	view	NN
37894	353	13	of	of	IN
37894	353	14	the	the	DT
37894	353	15	computer	computer	NN
37894	353	16	,	,	,
37894	353	17	the	the	DT
37894	353	18	others	other	NNS
37894	353	19	being	be	VBG
37894	353	20	derived	derive	VBN
37894	353	21	from	from	IN
37894	353	22	it	-PRON-	PRP
37894	353	23	.	.	.
37894	354	1	In	in	IN
37894	354	2	analysis	analysis	NN
37894	354	3	it	-PRON-	PRP
37894	354	4	provides	provide	VBZ
37894	354	5	a	a	DT
37894	354	6	means	means	NN
37894	354	7	of	of	IN
37894	354	8	comparing	compare	VBG
37894	354	9	directional	directional	JJ
37894	354	10	trends	trend	NNS
37894	354	11	at	at	IN
37894	354	12	the	the	DT
37894	354	13	same	same	JJ
37894	354	14	station	station	NN
37894	354	15	and	and	CC
37894	354	16	of	of	IN
37894	354	17	studying	study	VBG
37894	354	18	variation	variation	NN
37894	354	19	in	in	IN
37894	354	20	directional	directional	JJ
37894	354	21	fanning	fanning	NN
37894	354	22	.	.	.
37894	355	1	Net	Net	NNP
37894	355	2	Trend	Trend	NNP
37894	355	3	Density	Density	NNP
37894	355	4	represents	represent	VBZ
37894	355	5	the	the	DT
37894	355	6	maximum	maximum	JJ
37894	355	7	net	net	JJ
37894	355	8	flow	flow	NN
37894	355	9	of	of	IN
37894	355	10	migration	migration	NN
37894	355	11	over	over	IN
37894	355	12	a	a	DT
37894	355	13	one	one	CD
37894	355	14	-	-	HYPH
37894	355	15	mile	mile	NN
37894	355	16	line	line	NN
37894	355	17	.	.	.
37894	356	1	It	-PRON-	PRP
37894	356	2	is	be	VBZ
37894	356	3	found	find	VBN
37894	356	4	by	by	IN
37894	356	5	plotting	plot	VBG
37894	356	6	the	the	DT
37894	356	7	sector	sector	NN
37894	356	8	densities	densitie	VBZ
37894	356	9	directionally	directionally	RB
37894	356	10	as	as	IN
37894	356	11	lines	line	NNS
37894	356	12	of	of	IN
37894	356	13	thrust	thrust	NN
37894	356	14	,	,	,
37894	356	15	proportioned	proportion	VBD
37894	356	16	according	accord	VBG
37894	356	17	to	to	IN
37894	356	18	the	the	DT
37894	356	19	density	density	NN
37894	356	20	in	in	IN
37894	356	21	each	each	DT
37894	356	22	sector	sector	NN
37894	356	23	,	,	,
37894	356	24	and	and	CC
37894	356	25	using	use	VBG
37894	356	26	vector	vector	NN
37894	356	27	analysis	analysis	NN
37894	356	28	to	to	TO
37894	356	29	obtain	obtain	VB
37894	356	30	a	a	DT
37894	356	31	vector	vector	NN
37894	356	32	resultant	resultant	NN
37894	356	33	,	,	,
37894	356	34	representing	represent	VBG
37894	356	35	the	the	DT
37894	356	36	density	density	NN
37894	356	37	and	and	CC
37894	356	38	direction	direction	NN
37894	356	39	of	of	IN
37894	356	40	the	the	DT
37894	356	41	net	net	JJ
37894	356	42	trend	trend	NN
37894	356	43	.	.	.
37894	357	1	The	the	DT
37894	357	2	mile	mile	NN
37894	357	3	line	line	NN
37894	357	4	defining	define	VBG
37894	357	5	the	the	DT
37894	357	6	spacial	spacial	JJ
37894	357	7	limits	limit	NNS
37894	357	8	lies	lie	VBZ
37894	357	9	at	at	IN
37894	357	10	right	right	JJ
37894	357	11	angles	angle	NNS
37894	357	12	to	to	IN
37894	357	13	this	this	DT
37894	357	14	vector	vector	NN
37894	357	15	resultant	resultant	NN
37894	357	16	,	,	,
37894	357	17	but	but	CC
37894	357	18	the	the	DT
37894	357	19	density	density	NN
37894	357	20	figure	figure	NN
37894	357	21	includes	include	VBZ
37894	357	22	all	all	DT
37894	357	23	of	of	IN
37894	357	24	the	the	DT
37894	357	25	birds	bird	NNS
37894	357	26	crossing	cross	VBG
37894	357	27	the	the	DT
37894	357	28	line	line	NN
37894	357	29	,	,	,
37894	357	30	not	not	RB
37894	357	31	just	just	RB
37894	357	32	those	those	DT
37894	357	33	that	that	WDT
37894	357	34	do	do	VBP
37894	357	35	so	so	RB
37894	357	36	at	at	IN
37894	357	37	a	a	DT
37894	357	38	specified	specified	JJ
37894	357	39	angle	angle	NN
37894	357	40	.	.	.
37894	358	1	Much	much	JJ
37894	358	2	of	of	IN
37894	358	3	the	the	DT
37894	358	4	directional	directional	JJ
37894	358	5	spread	spread	NN
37894	358	6	exhibited	exhibit	VBN
37894	358	7	by	by	IN
37894	358	8	sector	sector	NN
37894	358	9	densities	density	NNS
37894	358	10	undoubtedly	undoubtedly	RB
37894	358	11	has	have	VBZ
37894	358	12	no	no	DT
37894	358	13	basis	basis	NN
37894	358	14	in	in	IN
37894	358	15	reality	reality	NN
37894	358	16	but	but	CC
37894	358	17	results	result	NNS
37894	358	18	from	from	IN
37894	358	19	inaccuracies	inaccuracy	NNS
37894	358	20	in	in	IN
37894	358	21	coördinate	coördinate	JJ
37894	358	22	readings	reading	NNS
37894	358	23	and	and	CC
37894	358	24	from	from	IN
37894	358	25	practical	practical	JJ
37894	358	26	difficulties	difficulty	NNS
37894	358	27	inherent	inherent	JJ
37894	358	28	in	in	IN
37894	358	29	the	the	DT
37894	358	30	method	method	NN
37894	358	31	of	of	IN
37894	358	32	computation	computation	NN
37894	358	33	.	.	.
37894	359	1	By	by	IN
37894	359	2	reducing	reduce	VBG
37894	359	3	all	all	DT
37894	359	4	directions	direction	NNS
37894	359	5	to	to	IN
37894	359	6	one	one	CD
37894	359	7	major	major	JJ
37894	359	8	trend	trend	NN
37894	359	9	,	,	,
37894	359	10	net	net	JJ
37894	359	11	trend	trend	NN
37894	359	12	density	density	NN
37894	359	13	has	have	VBZ
37894	359	14	the	the	DT
37894	359	15	advantage	advantage	NN
37894	359	16	of	of	IN
37894	359	17	balancing	balance	VBG
37894	359	18	errors	error	NNS
37894	359	19	one	one	CD
37894	359	20	against	against	IN
37894	359	21	the	the	DT
37894	359	22	other	other	JJ
37894	359	23	and	and	CC
37894	359	24	may	may	MD
37894	359	25	often	often	RB
37894	359	26	give	give	VB
37894	359	27	the	the	DT
37894	359	28	truer	truer	NN
37894	359	29	index	index	NN
37894	359	30	to	to	IN
37894	359	31	the	the	DT
37894	359	32	way	way	NN
37894	359	33	in	in	IN
37894	359	34	which	which	WDT
37894	359	35	the	the	DT
37894	359	36	birds	bird	NNS
37894	359	37	are	be	VBP
37894	359	38	actually	actually	RB
37894	359	39	going	go	VBG
37894	359	40	.	.	.
37894	360	1	On	on	IN
37894	360	2	the	the	DT
37894	360	3	other	other	JJ
37894	360	4	hand	hand	NN
37894	360	5	,	,	,
37894	360	6	if	if	IN
37894	360	7	the	the	DT
37894	360	8	basic	basic	JJ
37894	360	9	directions	direction	NNS
37894	360	10	are	be	VBP
37894	360	11	too	too	RB
37894	360	12	widely	widely	RB
37894	360	13	spread	spread	VBN
37894	360	14	or	or	CC
37894	360	15	if	if	IN
37894	360	16	the	the	DT
37894	360	17	major	major	JJ
37894	360	18	sector	sector	NN
37894	360	19	vectors	vector	NNS
37894	360	20	are	be	VBP
37894	360	21	widely	widely	RB
37894	360	22	separated	separate	VBN
37894	360	23	with	with	IN
37894	360	24	little	little	JJ
37894	360	25	or	or	CC
37894	360	26	no	no	DT
37894	360	27	representation	representation	NN
37894	360	28	between	between	IN
37894	360	29	,	,	,
37894	360	30	the	the	DT
37894	360	31	net	net	JJ
37894	360	32	trend	trend	NN
37894	360	33	density	density	NN
37894	360	34	may	may	MD
37894	360	35	become	become	VB
37894	360	36	an	an	DT
37894	360	37	abstraction	abstraction	NN
37894	360	38	,	,	,
37894	360	39	expressing	express	VBG
37894	360	40	the	the	DT
37894	360	41	idea	idea	NN
37894	360	42	of	of	IN
37894	360	43	a	a	DT
37894	360	44	mean	mean	JJ
37894	360	45	direction	direction	NN
37894	360	46	but	but	CC
37894	360	47	pointing	point	VBG
37894	360	48	down	down	RP
37894	360	49	an	an	DT
37894	360	50	avenue	avenue	NN
37894	360	51	along	along	IN
37894	360	52	which	which	WDT
37894	360	53	no	no	DT
37894	360	54	migrants	migrant	NNS
37894	360	55	are	be	VBP
37894	360	56	traveling	travel	VBG
37894	360	57	.	.	.
37894	361	1	In	in	IN
37894	361	2	such	such	JJ
37894	361	3	instances	instance	NNS
37894	361	4	,	,	,
37894	361	5	little	little	JJ
37894	361	6	of	of	IN
37894	361	7	importance	importance	NN
37894	361	8	can	can	MD
37894	361	9	be	be	VB
37894	361	10	learned	learn	VBN
37894	361	11	from	from	IN
37894	361	12	it	-PRON-	PRP
37894	361	13	.	.	.
37894	362	1	In	in	IN
37894	362	2	others	other	NNS
37894	362	3	,	,	,
37894	362	4	it	-PRON-	PRP
37894	362	5	gives	give	VBZ
37894	362	6	an	an	DT
37894	362	7	idea	idea	NN
37894	362	8	of	of	IN
37894	362	9	general	general	JJ
37894	362	10	trends	trend	NNS
37894	362	11	indispensable	indispensable	JJ
37894	362	12	in	in	IN
37894	362	13	comparing	compare	VBG
37894	362	14	station	station	NN
37894	362	15	with	with	IN
37894	362	16	station	station	NN
37894	362	17	to	to	TO
37894	362	18	test	test	VB
37894	362	19	the	the	DT
37894	362	20	existence	existence	NN
37894	362	21	of	of	IN
37894	362	22	flyways	flyway	NNS
37894	362	23	and	and	CC
37894	362	24	in	in	IN
37894	362	25	mapping	map	VBG
37894	362	26	the	the	DT
37894	362	27	continental	continental	JJ
37894	362	28	distribution	distribution	NN
37894	362	29	of	of	IN
37894	362	30	flight	flight	NN
37894	362	31	on	on	IN
37894	362	32	a	a	DT
37894	362	33	given	give	VBN
37894	362	34	night	night	NN
37894	362	35	to	to	TO
37894	362	36	study	study	VB
37894	362	37	the	the	DT
37894	362	38	influence	influence	NN
37894	362	39	of	of	IN
37894	362	40	weather	weather	NN
37894	362	41	factors	factor	NNS
37894	362	42	.	.	.
37894	363	1	Station	station	NN
37894	363	2	Density	density	NN
37894	363	3	,	,	,
37894	363	4	or	or	CC
37894	363	5	Station	Station	NNP
37894	363	6	Magnitude	Magnitude	NNP
37894	363	7	,	,	,
37894	363	8	represents	represent	VBZ
37894	363	9	all	all	DT
37894	363	10	of	of	IN
37894	363	11	the	the	DT
37894	363	12	migration	migration	NN
37894	363	13	activity	activity	NN
37894	363	14	in	in	IN
37894	363	15	an	an	DT
37894	363	16	hour	hour	NN
37894	363	17	in	in	IN
37894	363	18	the	the	DT
37894	363	19	vicinity	vicinity	NN
37894	363	20	of	of	IN
37894	363	21	the	the	DT
37894	363	22	observation	observation	NN
37894	363	23	point	point	NN
37894	363	24	,	,	,
37894	363	25	regardless	regardless	RB
37894	363	26	of	of	IN
37894	363	27	direction	direction	NN
37894	363	28	.	.	.
37894	364	1	It	-PRON-	PRP
37894	364	2	expresses	express	VBZ
37894	364	3	the	the	DT
37894	364	4	sum	sum	NN
37894	364	5	of	of	IN
37894	364	6	all	all	DT
37894	364	7	sector	sector	NN
37894	364	8	densities	density	NNS
37894	364	9	.	.	.
37894	365	1	It	-PRON-	PRP
37894	365	2	includes	include	VBZ
37894	365	3	,	,	,
37894	365	4	therefore	therefore	RB
37894	365	5	,	,	,
37894	365	6	the	the	DT
37894	365	7	birds	bird	NNS
37894	365	8	flying	fly	VBG
37894	365	9	at	at	IN
37894	365	10	right	right	JJ
37894	365	11	angles	angle	NNS
37894	365	12	over	over	IN
37894	365	13	several	several	JJ
37894	365	14	one	one	CD
37894	365	15	-	-	HYPH
37894	365	16	mile	mile	NN
37894	365	17	lines	line	NNS
37894	365	18	.	.	.
37894	366	1	One	one	CD
37894	366	2	way	way	NN
37894	366	3	of	of	IN
37894	366	4	picturing	picture	VBG
37894	366	5	its	-PRON-	PRP$
37894	366	6	physical	physical	JJ
37894	366	7	meaning	meaning	NN
37894	366	8	is	be	VBZ
37894	366	9	to	to	TO
37894	366	10	imagine	imagine	VB
37894	366	11	a	a	DT
37894	366	12	circle	circle	NN
37894	366	13	one	one	CD
37894	366	14	-	-	HYPH
37894	366	15	mile	mile	NN
37894	366	16	in	in	IN
37894	366	17	diameter	diameter	NN
37894	366	18	lying	lie	VBG
37894	366	19	on	on	IN
37894	366	20	the	the	DT
37894	366	21	earth	earth	NN
37894	366	22	with	with	IN
37894	366	23	the	the	DT
37894	366	24	observation	observation	NN
37894	366	25	point	point	NN
37894	366	26	in	in	IN
37894	366	27	the	the	DT
37894	366	28	center	center	NN
37894	366	29	.	.	.
37894	367	1	Then	then	RB
37894	367	2	all	all	DT
37894	367	3	of	of	IN
37894	367	4	the	the	DT
37894	367	5	birds	bird	NNS
37894	367	6	that	that	WDT
37894	367	7	fly	fly	VBP
37894	367	8	over	over	IN
37894	367	9	this	this	DT
37894	367	10	circle	circle	NN
37894	367	11	in	in	IN
37894	367	12	an	an	DT
37894	367	13	hour	hour	NN
37894	367	14	's	's	POS
37894	367	15	time	time	NN
37894	367	16	constitute	constitute	VB
37894	367	17	the	the	DT
37894	367	18	hourly	hourly	JJ
37894	367	19	station	station	NN
37894	367	20	density	density	NN
37894	367	21	.	.	.
37894	368	1	While	while	IN
37894	368	2	its	-PRON-	PRP$
37894	368	3	visualization	visualization	NN
37894	368	4	thus	thus	RB
37894	368	5	suggests	suggest	VBZ
37894	368	6	the	the	DT
37894	368	7	idea	idea	NN
37894	368	8	of	of	IN
37894	368	9	an	an	DT
37894	368	10	area	area	NN
37894	368	11	,	,	,
37894	368	12	it	-PRON-	PRP
37894	368	13	is	be	VBZ
37894	368	14	derived	derive	VBN
37894	368	15	from	from	IN
37894	368	16	linear	linear	JJ
37894	368	17	expressions	expression	NNS
37894	368	18	of	of	IN
37894	368	19	density	density	NN
37894	368	20	;	;	:
37894	368	21	and	and	CC
37894	368	22	,	,	,
37894	368	23	while	while	IN
37894	368	24	it	-PRON-	PRP
37894	368	25	involves	involve	VBZ
37894	368	26	no	no	DT
37894	368	27	limitation	limitation	NN
37894	368	28	with	with	IN
37894	368	29	respect	respect	NN
37894	368	30	to	to	IN
37894	368	31	direction	direction	NN
37894	368	32	,	,	,
37894	368	33	it	-PRON-	PRP
37894	368	34	could	could	MD
37894	368	35	not	not	RB
37894	368	36	be	be	VB
37894	368	37	computed	compute	VBN
37894	368	38	without	without	IN
37894	368	39	taking	take	VBG
37894	368	40	every	every	DT
37894	368	41	component	component	NN
37894	368	42	direction	direction	NN
37894	368	43	into	into	IN
37894	368	44	consideration	consideration	NN
37894	368	45	.	.	.
37894	369	1	Station	station	NN
37894	369	2	density	density	NN
37894	369	3	is	be	VBZ
37894	369	4	adapted	adapt	VBN
37894	369	5	to	to	IN
37894	369	6	studies	study	NNS
37894	369	7	involving	involve	VBG
37894	369	8	the	the	DT
37894	369	9	total	total	JJ
37894	369	10	migration	migration	NN
37894	369	11	activity	activity	NN
37894	369	12	at	at	IN
37894	369	13	various	various	JJ
37894	369	14	stations	station	NNS
37894	369	15	.	.	.
37894	370	1	So	so	RB
37894	370	2	far	far	RB
37894	370	3	it	-PRON-	PRP
37894	370	4	has	have	VBZ
37894	370	5	been	be	VBN
37894	370	6	the	the	DT
37894	370	7	most	most	RBS
37894	370	8	profitable	profitable	JJ
37894	370	9	of	of	IN
37894	370	10	all	all	PDT
37894	370	11	the	the	DT
37894	370	12	density	density	NN
37894	370	13	concepts	concept	NNS
37894	370	14	,	,	,
37894	370	15	throwing	throw	VBG
37894	370	16	important	important	JJ
37894	370	17	light	light	NN
37894	370	18	on	on	IN
37894	370	19	nocturnal	nocturnal	JJ
37894	370	20	rhythm	rhythm	NN
37894	370	21	,	,	,
37894	370	22	seasonal	seasonal	JJ
37894	370	23	increases	increase	NNS
37894	370	24	in	in	IN
37894	370	25	migration	migration	NN
37894	370	26	,	,	,
37894	370	27	and	and	CC
37894	370	28	the	the	DT
37894	370	29	vexing	vexing	NN
37894	370	30	problem	problem	NN
37894	370	31	of	of	IN
37894	370	32	the	the	DT
37894	370	33	distribution	distribution	NN
37894	370	34	of	of	IN
37894	370	35	migrating	migrate	VBG
37894	370	36	birds	bird	NNS
37894	370	37	in	in	IN
37894	370	38	the	the	DT
37894	370	39	region	region	NN
37894	370	40	of	of	IN
37894	370	41	the	the	DT
37894	370	42	Gulf	Gulf	NNP
37894	370	43	of	of	IN
37894	370	44	Mexico	Mexico	NNP
37894	370	45	.	.	.
37894	371	1	Details	detail	NNS
37894	371	2	of	of	IN
37894	371	3	procedure	procedure	NN
37894	371	4	in	in	IN
37894	371	5	arriving	arrive	VBG
37894	371	6	at	at	IN
37894	371	7	these	these	DT
37894	371	8	three	three	CD
37894	371	9	types	type	NNS
37894	371	10	of	of	IN
37894	371	11	flight	flight	NN
37894	371	12	density	density	NN
37894	371	13	will	will	MD
37894	371	14	be	be	VB
37894	371	15	explained	explain	VBN
37894	371	16	in	in	IN
37894	371	17	Section	section	NN
37894	371	18	B	B	NNP
37894	371	19	of	of	IN
37894	371	20	this	this	DT
37894	371	21	discussion	discussion	NN
37894	371	22	.	.	.
37894	372	1	For	for	IN
37894	372	2	the	the	DT
37894	372	3	moment	moment	NN
37894	372	4	,	,	,
37894	372	5	it	-PRON-	PRP
37894	372	6	will	will	MD
37894	372	7	suffice	suffice	VB
37894	372	8	to	to	TO
37894	372	9	review	review	VB
37894	372	10	and	and	CC
37894	372	11	amplify	amplify	VB
37894	372	12	somewhat	somewhat	RB
37894	372	13	the	the	DT
37894	372	14	general	general	JJ
37894	372	15	idea	idea	NN
37894	372	16	involved	involve	VBN
37894	372	17	.	.	.
37894	373	1	_	_	NNP
37894	373	2	Altitude	Altitude	NNP
37894	373	3	as	as	IN
37894	373	4	a	a	DT
37894	373	5	Factor	Factor	NNP
37894	373	6	in	in	IN
37894	373	7	Flight	Flight	NNP
37894	373	8	Density	Density	NNP
37894	373	9	_	_	NNP
37894	373	10	A	a	DT
37894	373	11	flight	flight	NN
37894	373	12	density	density	NN
37894	373	13	,	,	,
37894	373	14	as	as	IN
37894	373	15	we	-PRON-	PRP
37894	373	16	have	have	VBP
37894	373	17	seen	see	VBN
37894	373	18	,	,	,
37894	373	19	may	may	MD
37894	373	20	be	be	VB
37894	373	21	defined	define	VBN
37894	373	22	as	as	IN
37894	373	23	the	the	DT
37894	373	24	number	number	NN
37894	373	25	of	of	IN
37894	373	26	birds	bird	NNS
37894	373	27	passing	pass	VBG
37894	373	28	over	over	IN
37894	373	29	a	a	DT
37894	373	30	line	line	NN
37894	373	31	one	one	CD
37894	373	32	mile	mile	NN
37894	373	33	long	long	RB
37894	373	34	;	;	:
37894	373	35	and	and	CC
37894	373	36	it	-PRON-	PRP
37894	373	37	may	may	MD
37894	373	38	be	be	VB
37894	373	39	calculated	calculate	VBN
37894	373	40	from	from	IN
37894	373	41	the	the	DT
37894	373	42	number	number	NN
37894	373	43	of	of	IN
37894	373	44	birds	bird	NNS
37894	373	45	crossing	cross	VBG
37894	373	46	the	the	DT
37894	373	47	segment	segment	NN
37894	373	48	of	of	IN
37894	373	49	that	that	DT
37894	373	50	line	line	NN
37894	373	51	included	include	VBN
37894	373	52	in	in	IN
37894	373	53	an	an	DT
37894	373	54	elliptical	elliptical	JJ
37894	373	55	cross	cross	JJ
37894	373	56	-	-	NN
37894	373	57	section	section	NN
37894	373	58	of	of	IN
37894	373	59	the	the	DT
37894	373	60	cone	cone	NN
37894	373	61	of	of	IN
37894	373	62	observation	observation	NN
37894	373	63	.	.	.
37894	374	1	It	-PRON-	PRP
37894	374	2	may	may	MD
37894	374	3	be	be	VB
37894	374	4	thought	think	VBN
37894	374	5	of	of	IN
37894	374	6	with	with	IN
37894	374	7	equal	equal	JJ
37894	374	8	correctness	correctness	NN
37894	374	9	,	,	,
37894	374	10	without	without	IN
37894	374	11	in	in	IN
37894	374	12	any	any	DT
37894	374	13	way	way	NN
37894	374	14	contradicting	contradict	VBG
37894	374	15	the	the	DT
37894	374	16	accuracy	accuracy	NN
37894	374	17	of	of	IN
37894	374	18	the	the	DT
37894	374	19	original	original	JJ
37894	374	20	definition	definition	NN
37894	374	21	,	,	,
37894	374	22	as	as	IN
37894	374	23	the	the	DT
37894	374	24	number	number	NN
37894	374	25	of	of	IN
37894	374	26	birds	bird	NNS
37894	374	27	passing	pass	VBG
37894	374	28	through	through	IN
37894	374	29	a	a	DT
37894	374	30	vertical	vertical	JJ
37894	374	31	plane	plane	NN
37894	374	32	one	one	CD
37894	374	33	mile	mile	NN
37894	374	34	long	long	RB
37894	374	35	whose	whose	WP$
37894	374	36	upper	upper	JJ
37894	374	37	limits	limit	NNS
37894	374	38	are	be	VBP
37894	374	39	its	-PRON-	PRP$
37894	374	40	intersection	intersection	NN
37894	374	41	with	with	IN
37894	374	42	the	the	DT
37894	374	43	flight	flight	NN
37894	374	44	ceiling	ceiling	NN
37894	374	45	and	and	CC
37894	374	46	whose	whose	WP$
37894	374	47	base	base	NN
37894	374	48	coincides	coincide	VBZ
37894	374	49	with	with	IN
37894	374	50	the	the	DT
37894	374	51	one	one	CD
37894	374	52	mile	mile	NN
37894	374	53	line	line	NN
37894	374	54	of	of	IN
37894	374	55	the	the	DT
37894	374	56	previous	previous	JJ
37894	374	57	visualization	visualization	NN
37894	374	58	.	.	.
37894	375	1	From	from	IN
37894	375	2	the	the	DT
37894	375	3	second	second	JJ
37894	375	4	point	point	NN
37894	375	5	of	of	IN
37894	375	6	view	view	NN
37894	375	7	,	,	,
37894	375	8	the	the	DT
37894	375	9	sample	sample	NN
37894	375	10	becomes	become	VBZ
37894	375	11	an	an	DT
37894	375	12	area	area	NN
37894	375	13	bounded	bound	VBN
37894	375	14	by	by	IN
37894	375	15	the	the	DT
37894	375	16	triangular	triangular	JJ
37894	375	17	projection	projection	NN
37894	375	18	of	of	IN
37894	375	19	the	the	DT
37894	375	20	cone	cone	NN
37894	375	21	of	of	IN
37894	375	22	observation	observation	NN
37894	375	23	on	on	IN
37894	375	24	the	the	DT
37894	375	25	density	density	NN
37894	375	26	plane	plane	NN
37894	375	27	.	.	.
37894	376	1	The	the	DT
37894	376	2	dimensions	dimension	NNS
37894	376	3	of	of	IN
37894	376	4	two	two	CD
37894	376	5	triangles	triangle	NNS
37894	376	6	thus	thus	RB
37894	376	7	determined	determine	VBN
37894	376	8	from	from	IN
37894	376	9	any	any	DT
37894	376	10	two	two	CD
37894	376	11	cones	cone	NNS
37894	376	12	of	of	IN
37894	376	13	observation	observation	NN
37894	376	14	stand	stand	VBP
37894	376	15	in	in	IN
37894	376	16	the	the	DT
37894	376	17	same	same	JJ
37894	376	18	ratio	ratio	NN
37894	376	19	as	as	IN
37894	376	20	the	the	DT
37894	376	21	dimensions	dimension	NNS
37894	376	22	of	of	IN
37894	376	23	their	-PRON-	PRP$
37894	376	24	elliptical	elliptical	JJ
37894	376	25	sections	section	NNS
37894	376	26	on	on	IN
37894	376	27	any	any	DT
37894	376	28	one	one	CD
37894	376	29	plane	plane	NN
37894	376	30	;	;	:
37894	376	31	so	so	CC
37894	376	32	both	both	DT
37894	376	33	approaches	approach	NNS
37894	376	34	lead	lead	VBP
37894	376	35	ultimately	ultimately	RB
37894	376	36	to	to	IN
37894	376	37	the	the	DT
37894	376	38	same	same	JJ
37894	376	39	result	result	NN
37894	376	40	.	.	.
37894	377	1	The	the	DT
37894	377	2	advantage	advantage	NN
37894	377	3	of	of	IN
37894	377	4	this	this	DT
37894	377	5	alternative	alternative	JJ
37894	377	6	way	way	NN
37894	377	7	of	of	IN
37894	377	8	looking	look	VBG
37894	377	9	at	at	IN
37894	377	10	things	thing	NNS
37894	377	11	is	be	VBZ
37894	377	12	that	that	IN
37894	377	13	it	-PRON-	PRP
37894	377	14	enables	enable	VBZ
37894	377	15	us	-PRON-	PRP
37894	377	16	to	to	TO
37894	377	17	consider	consider	VB
37894	377	18	the	the	DT
37894	377	19	vertical	vertical	JJ
37894	377	20	aspects	aspect	NNS
37894	377	21	of	of	IN
37894	377	22	migration	migration	NN
37894	377	23	--	--	:
37894	377	24	to	to	TO
37894	377	25	comprehend	comprehend	VB
37894	377	26	the	the	DT
37894	377	27	relation	relation	NN
37894	377	28	of	of	IN
37894	377	29	altitude	altitude	NN
37894	377	30	to	to	IN
37894	377	31	bird	bird	NN
37894	377	32	density	density	NN
37894	377	33	.	.	.
37894	378	1	If	if	IN
37894	378	2	the	the	DT
37894	378	3	field	field	NN
37894	378	4	of	of	IN
37894	378	5	observation	observation	NN
37894	378	6	were	be	VBD
37894	378	7	cylindrical	cylindrical	JJ
37894	378	8	in	in	IN
37894	378	9	shape	shape	NN
37894	378	10	,	,	,
37894	378	11	if	if	IN
37894	378	12	it	-PRON-	PRP
37894	378	13	had	have	VBD
37894	378	14	parallel	parallel	JJ
37894	378	15	sides	side	NNS
37894	378	16	,	,	,
37894	378	17	if	if	IN
37894	378	18	its	-PRON-	PRP$
37894	378	19	projection	projection	NN
37894	378	20	were	be	VBD
37894	378	21	a	a	DT
37894	378	22	rectangle	rectangle	NN
37894	378	23	or	or	CC
37894	378	24	a	a	DT
37894	378	25	parallelogram	parallelogram	NN
37894	378	26	,	,	,
37894	378	27	the	the	DT
37894	378	28	height	height	NN
37894	378	29	at	at	IN
37894	378	30	which	which	WDT
37894	378	31	birds	bird	NNS
37894	378	32	are	be	VBP
37894	378	33	flying	fly	VBG
37894	378	34	would	would	MD
37894	378	35	not	not	RB
37894	378	36	be	be	VB
37894	378	37	a	a	DT
37894	378	38	factor	factor	NN
37894	378	39	in	in	IN
37894	378	40	finding	find	VBG
37894	378	41	out	out	RP
37894	378	42	their	-PRON-	PRP$
37894	378	43	number	number	NN
37894	378	44	.	.	.
37894	379	1	Then	then	RB
37894	379	2	the	the	DT
37894	379	3	sample	sample	NN
37894	379	4	would	would	MD
37894	379	5	be	be	VB
37894	379	6	of	of	IN
37894	379	7	equal	equal	JJ
37894	379	8	breadth	breadth	NN
37894	379	9	throughout	throughout	RB
37894	379	10	,	,	,
37894	379	11	with	with	IN
37894	379	12	an	an	DT
37894	379	13	equally	equally	RB
37894	379	14	wide	wide	JJ
37894	379	15	representation	representation	NN
37894	379	16	of	of	IN
37894	379	17	the	the	DT
37894	379	18	flight	flight	NN
37894	379	19	at	at	IN
37894	379	20	all	all	DT
37894	379	21	levels	level	NNS
37894	379	22	.	.	.
37894	380	1	Since	since	IN
37894	380	2	the	the	DT
37894	380	3	field	field	NN
37894	380	4	of	of	IN
37894	380	5	observation	observation	NN
37894	380	6	is	be	VBZ
37894	380	7	actually	actually	RB
37894	380	8	an	an	DT
37894	380	9	inverted	invert	VBN
37894	380	10	cone	cone	NN
37894	380	11	,	,	,
37894	380	12	triangular	triangular	NNP
37894	380	13	in	in	IN
37894	380	14	section	section	NN
37894	380	15	,	,	,
37894	380	16	with	with	IN
37894	380	17	diverging	diverge	VBG
37894	380	18	sides	side	NNS
37894	380	19	,	,	,
37894	380	20	the	the	DT
37894	380	21	opportunity	opportunity	NN
37894	380	22	to	to	TO
37894	380	23	detect	detect	VB
37894	380	24	birds	bird	NNS
37894	380	25	increases	increase	NNS
37894	380	26	with	with	IN
37894	380	27	their	-PRON-	PRP$
37894	380	28	distance	distance	NN
37894	380	29	from	from	IN
37894	380	30	the	the	DT
37894	380	31	observer	observer	NN
37894	380	32	.	.	.
37894	381	1	The	the	DT
37894	381	2	chances	chance	NNS
37894	381	3	of	of	IN
37894	381	4	seeing	see	VBG
37894	381	5	the	the	DT
37894	381	6	birds	bird	NNS
37894	381	7	passing	pass	VBG
37894	381	8	below	below	IN
37894	381	9	an	an	DT
37894	381	10	elevation	elevation	NN
37894	381	11	midway	midway	NN
37894	381	12	to	to	IN
37894	381	13	the	the	DT
37894	381	14	flight	flight	NN
37894	381	15	ceiling	ceiling	NN
37894	381	16	are	be	VBP
37894	381	17	only	only	RB
37894	381	18	one	one	CD
37894	381	19	-	-	HYPH
37894	381	20	third	third	NN
37894	381	21	as	as	RB
37894	381	22	great	great	JJ
37894	381	23	as	as	IN
37894	381	24	of	of	IN
37894	381	25	seeing	see	VBG
37894	381	26	those	those	DT
37894	381	27	passing	pass	VBG
37894	381	28	above	above	IN
37894	381	29	that	that	DT
37894	381	30	elevation	elevation	NN
37894	381	31	,	,	,
37894	381	32	simply	simply	RB
37894	381	33	because	because	IN
37894	381	34	the	the	DT
37894	381	35	area	area	NN
37894	381	36	of	of	IN
37894	381	37	that	that	DT
37894	381	38	part	part	NN
37894	381	39	of	of	IN
37894	381	40	the	the	DT
37894	381	41	triangle	triangle	NN
37894	381	42	below	below	IN
37894	381	43	the	the	DT
37894	381	44	mid	mid	JJ
37894	381	45	-	-	NN
37894	381	46	elevation	elevation	NN
37894	381	47	is	be	VBZ
37894	381	48	only	only	RB
37894	381	49	one	one	CD
37894	381	50	-	-	HYPH
37894	381	51	third	third	NN
37894	381	52	as	as	RB
37894	381	53	great	great	JJ
37894	381	54	as	as	IN
37894	381	55	the	the	DT
37894	381	56	area	area	NN
37894	381	57	of	of	IN
37894	381	58	that	that	DT
37894	381	59	part	part	NN
37894	381	60	above	above	IN
37894	381	61	the	the	DT
37894	381	62	mid	mid	NN
37894	381	63	-	-	NN
37894	381	64	elevation	elevation	NN
37894	381	65	.	.	.
37894	382	1	If	if	IN
37894	382	2	we	-PRON-	PRP
37894	382	3	assume	assume	VBP
37894	382	4	that	that	IN
37894	382	5	the	the	DT
37894	382	6	ratio	ratio	NN
37894	382	7	of	of	IN
37894	382	8	the	the	DT
37894	382	9	visible	visible	JJ
37894	382	10	number	number	NN
37894	382	11	of	of	IN
37894	382	12	birds	bird	NNS
37894	382	13	to	to	IN
37894	382	14	the	the	DT
37894	382	15	number	number	NN
37894	382	16	passing	pass	VBG
37894	382	17	through	through	IN
37894	382	18	the	the	DT
37894	382	19	density	density	NN
37894	382	20	plane	plane	NN
37894	382	21	is	be	VBZ
37894	382	22	the	the	DT
37894	382	23	same	same	JJ
37894	382	24	as	as	IN
37894	382	25	the	the	DT
37894	382	26	ratio	ratio	NN
37894	382	27	of	of	IN
37894	382	28	the	the	DT
37894	382	29	triangular	triangular	JJ
37894	382	30	section	section	NN
37894	382	31	of	of	IN
37894	382	32	the	the	DT
37894	382	33	cone	cone	NN
37894	382	34	to	to	IN
37894	382	35	the	the	DT
37894	382	36	total	total	JJ
37894	382	37	area	area	NN
37894	382	38	of	of	IN
37894	382	39	the	the	DT
37894	382	40	plane	plane	NN
37894	382	41	,	,	,
37894	382	42	we	-PRON-	PRP
37894	382	43	are	be	VBP
37894	382	44	in	in	IN
37894	382	45	effect	effect	NN
37894	382	46	assuming	assume	VBG
37894	382	47	that	that	IN
37894	382	48	the	the	DT
37894	382	49	density	density	NN
37894	382	50	plane	plane	NN
37894	382	51	is	be	VBZ
37894	382	52	made	make	VBN
37894	382	53	up	up	RP
37894	382	54	of	of	IN
37894	382	55	a	a	DT
37894	382	56	series	series	NN
37894	382	57	of	of	IN
37894	382	58	triangles	triangle	NNS
37894	382	59	the	the	DT
37894	382	60	size	size	NN
37894	382	61	of	of	IN
37894	382	62	the	the	DT
37894	382	63	sample	sample	NN
37894	382	64	,	,	,
37894	382	65	each	each	DT
37894	382	66	intercepting	intercept	VBG
37894	382	67	approximately	approximately	RB
37894	382	68	the	the	DT
37894	382	69	same	same	JJ
37894	382	70	number	number	NN
37894	382	71	of	of	IN
37894	382	72	birds	bird	NNS
37894	382	73	.	.	.
37894	383	1	We	-PRON-	PRP
37894	383	2	are	be	VBP
37894	383	3	assuming	assume	VBG
37894	383	4	that	that	IN
37894	383	5	the	the	DT
37894	383	6	same	same	JJ
37894	383	7	number	number	NN
37894	383	8	of	of	IN
37894	383	9	birds	bird	NNS
37894	383	10	pass	pass	VBP
37894	383	11	through	through	IN
37894	383	12	the	the	DT
37894	383	13	inverted	inverted	JJ
37894	383	14	triangular	triangular	NNP
37894	383	15	sample	sample	NN
37894	383	16	as	as	IN
37894	383	17	through	through	IN
37894	383	18	the	the	DT
37894	383	19	erect	erect	NN
37894	383	20	and	and	CC
37894	383	21	uninvestigable	uninvestigable	JJ
37894	383	22	triangle	triangle	NN
37894	383	23	beside	beside	IN
37894	383	24	it	-PRON-	PRP
37894	383	25	(	(	-LRB-
37894	383	26	as	as	IN
37894	383	27	in	in	IN
37894	383	28	Figure	Figure	NNP
37894	383	29	11	11	CD
37894	383	30	,	,	,
37894	383	31	Diagram	Diagram	NNP
37894	383	32	II	II	NNP
37894	383	33	)	)	-RRB-
37894	383	34	.	.	.
37894	384	1	In	in	IN
37894	384	2	reality	reality	NN
37894	384	3	,	,	,
37894	384	4	the	the	DT
37894	384	5	assumption	assumption	NN
37894	384	6	is	be	VBZ
37894	384	7	sound	sound	JJ
37894	384	8	only	only	RB
37894	384	9	if	if	IN
37894	384	10	the	the	DT
37894	384	11	altitudinal	altitudinal	JJ
37894	384	12	distribution	distribution	NN
37894	384	13	of	of	IN
37894	384	14	migrants	migrant	NNS
37894	384	15	is	be	VBZ
37894	384	16	uniform	uniform	JJ
37894	384	17	.	.	.
37894	385	1	[	[	-LRB-
37894	385	2	Illustration	illustration	NN
37894	385	3	:	:	:
37894	385	4	FIG	FIG	NNP
37894	385	5	.	.	.
37894	386	1	11	11	CD
37894	386	2	.	.	.
37894	387	1	Theoretical	theoretical	JJ
37894	387	2	possibilities	possibility	NNS
37894	387	3	of	of	IN
37894	387	4	vertical	vertical	JJ
37894	387	5	distribution	distribution	NN
37894	387	6	.	.	.
37894	388	1	Diagram	Diagram	NNP
37894	388	2	I	-PRON-	PRP
37894	388	3	shows	show	VBZ
37894	388	4	the	the	DT
37894	388	5	effect	effect	NN
37894	388	6	of	of	IN
37894	388	7	a	a	DT
37894	388	8	uniform	uniform	JJ
37894	388	9	vertical	vertical	JJ
37894	388	10	distribution	distribution	NN
37894	388	11	of	of	IN
37894	388	12	birds	bird	NNS
37894	388	13	.	.	.
37894	389	1	The	the	DT
37894	389	2	figures	figure	NNS
37894	389	3	indicate	indicate	VBP
37894	389	4	the	the	DT
37894	389	5	number	number	NN
37894	389	6	of	of	IN
37894	389	7	birds	bird	NNS
37894	389	8	in	in	IN
37894	389	9	the	the	DT
37894	389	10	respective	respective	JJ
37894	389	11	areas	area	NNS
37894	389	12	.	.	.
37894	390	1	Here	here	RB
37894	390	2	the	the	DT
37894	390	3	sample	sample	NN
37894	390	4	triangle	triangle	NN
37894	390	5	,	,	,
37894	390	6	ABD	ABD	NNP
37894	390	7	,	,	,
37894	390	8	contains	contain	VBZ
37894	390	9	the	the	DT
37894	390	10	same	same	JJ
37894	390	11	number	number	NN
37894	390	12	of	of	IN
37894	390	13	birds	bird	NNS
37894	390	14	as	as	IN
37894	390	15	the	the	DT
37894	390	16	upright	upright	JJ
37894	390	17	triangle	triangle	NN
37894	390	18	,	,	,
37894	390	19	ACD	ACD	NNP
37894	390	20	,	,	,
37894	390	21	adjacent	adjacent	JJ
37894	390	22	to	to	IN
37894	390	23	it	-PRON-	PRP
37894	390	24	;	;	:
37894	390	25	the	the	DT
37894	390	26	density	density	NN
37894	390	27	plane	plane	NN
37894	390	28	may	may	MD
37894	390	29	be	be	VB
37894	390	30	conceived	conceive	VBN
37894	390	31	of	of	IN
37894	390	32	as	as	IN
37894	390	33	a	a	DT
37894	390	34	series	series	NN
37894	390	35	of	of	IN
37894	390	36	such	such	JJ
37894	390	37	alternating	alternate	VBG
37894	390	38	triangles	triangle	NNS
37894	390	39	,	,	,
37894	390	40	equal	equal	JJ
37894	390	41	in	in	IN
37894	390	42	their	-PRON-	PRP$
37894	390	43	content	content	NN
37894	390	44	of	of	IN
37894	390	45	birds	bird	NNS
37894	390	46	.	.	.
37894	391	1	Diagram	Diagram	NNP
37894	391	2	II	II	NNP
37894	391	3	portrays	portray	NNS
37894	391	4	,	,	,
37894	391	5	on	on	IN
37894	391	6	an	an	DT
37894	391	7	exaggerated	exaggerated	JJ
37894	391	8	scale	scale	NN
37894	391	9	,	,	,
37894	391	10	the	the	DT
37894	391	11	situation	situation	NN
37894	391	12	when	when	WRB
37894	391	13	many	many	JJ
37894	391	14	more	more	JJR
37894	391	15	birds	bird	NNS
37894	391	16	are	be	VBP
37894	391	17	flying	fly	VBG
37894	391	18	below	below	IN
37894	391	19	the	the	DT
37894	391	20	median	median	JJ
37894	391	21	altitude	altitude	NN
37894	391	22	than	than	IN
37894	391	23	above	above	IN
37894	391	24	it	-PRON-	PRP
37894	391	25	.	.	.
37894	392	1	In	in	IN
37894	392	2	contrast	contrast	NN
37894	392	3	to	to	IN
37894	392	4	the	the	DT
37894	392	5	152	152	CD
37894	392	6	birds	bird	NNS
37894	392	7	occurring	occur	VBG
37894	392	8	in	in	IN
37894	392	9	the	the	DT
37894	392	10	triangle	triangle	NN
37894	392	11	A´C´D	A´C´D	NNP
37894	392	12	´	´	CD
37894	392	13	,	,	,
37894	392	14	only	only	RB
37894	392	15	seventy	seventy	CD
37894	392	16	-	-	HYPH
37894	392	17	two	two	CD
37894	392	18	are	be	VBP
37894	392	19	seen	see	VBN
37894	392	20	in	in	IN
37894	392	21	the	the	DT
37894	392	22	triangle	triangle	NN
37894	392	23	A´B´D	A´B´D	NNP
37894	392	24	´	´	CD
37894	392	25	.	.	.
37894	393	1	Obviously	obviously	RB
37894	393	2	,	,	,
37894	393	3	the	the	DT
37894	393	4	latter	latter	JJ
37894	393	5	triangle	triangle	NN
37894	393	6	does	do	VBZ
37894	393	7	not	not	RB
37894	393	8	provide	provide	VB
37894	393	9	a	a	DT
37894	393	10	representative	representative	JJ
37894	393	11	sample	sample	NN
37894	393	12	of	of	IN
37894	393	13	the	the	DT
37894	393	14	total	total	JJ
37894	393	15	number	number	NN
37894	393	16	of	of	IN
37894	393	17	birds	bird	NNS
37894	393	18	intersecting	intersect	VBG
37894	393	19	the	the	DT
37894	393	20	density	density	NN
37894	393	21	plane	plane	NN
37894	393	22	.	.	.
37894	394	1	Diagram	Diagram	NNP
37894	394	2	III	III	NNP
37894	394	3	illustrates	illustrate	VBZ
37894	394	4	one	one	CD
37894	394	5	method	method	NN
37894	394	6	by	by	IN
37894	394	7	which	which	WDT
37894	394	8	this	this	DT
37894	394	9	difficulty	difficulty	NN
37894	394	10	may	may	MD
37894	394	11	be	be	VB
37894	394	12	overcome	overcome	VBN
37894	394	13	.	.	.
37894	395	1	By	by	IN
37894	395	2	lowering	lower	VBG
37894	395	3	the	the	DT
37894	395	4	line	line	NN
37894	395	5	F´G	f´g	NN
37894	395	6	´	´	CD
37894	395	7	to	to	IN
37894	395	8	the	the	DT
37894	395	9	median	median	JJ
37894	395	10	altitude	altitude	NN
37894	395	11	of	of	IN
37894	395	12	bird	bird	NN
37894	395	13	density	density	NN
37894	395	14	,	,	,
37894	395	15	F´´G	F´´G	NNP
37894	395	16	´	´	CD
37894	395	17	´	´	CD
37894	395	18	(	(	-LRB-
37894	395	19	the	the	DT
37894	395	20	elevation	elevation	NN
37894	395	21	above	above	IN
37894	395	22	which	which	WDT
37894	395	23	there	there	EX
37894	395	24	are	be	VBP
37894	395	25	just	just	RB
37894	395	26	as	as	RB
37894	395	27	many	many	JJ
37894	395	28	birds	bird	NNS
37894	395	29	as	as	IN
37894	395	30	below	below	RB
37894	395	31	)	)	-RRB-
37894	395	32	,	,	,
37894	395	33	we	-PRON-	PRP
37894	395	34	are	be	VBP
37894	395	35	able	able	JJ
37894	395	36	to	to	TO
37894	395	37	determine	determine	VB
37894	395	38	a	a	DT
37894	395	39	rectangular	rectangular	JJ
37894	395	40	panel	panel	NN
37894	395	41	,	,	,
37894	395	42	HIJK	HIJK	NNP
37894	395	43	,	,	,
37894	395	44	whose	whose	WP$
37894	395	45	content	content	NN
37894	395	46	of	of	IN
37894	395	47	birds	bird	NNS
37894	395	48	provides	provide	VBZ
37894	395	49	a	a	DT
37894	395	50	representative	representative	JJ
37894	395	51	sample	sample	NN
37894	395	52	of	of	IN
37894	395	53	the	the	DT
37894	395	54	vertical	vertical	JJ
37894	395	55	distribution	distribution	NN
37894	395	56	.	.	.
37894	395	57	]	]	-RRB-
37894	396	1	The	the	DT
37894	396	2	definite	definite	JJ
37894	396	3	data	data	NN
37894	396	4	on	on	IN
37894	396	5	this	this	DT
37894	396	6	subject	subject	NN
37894	396	7	are	be	VBP
37894	396	8	meagre	meagre	JJ
37894	396	9	.	.	.
37894	397	1	Nearly	nearly	RB
37894	397	2	half	half	PDT
37894	397	3	a	a	DT
37894	397	4	century	century	NN
37894	397	5	ago	ago	RB
37894	397	6	,	,	,
37894	397	7	Stebbins	stebbin	NNS
37894	397	8	worked	work	VBD
37894	397	9	out	out	RP
37894	397	10	a	a	DT
37894	397	11	way	way	NN
37894	397	12	of	of	IN
37894	397	13	measuring	measure	VBG
37894	397	14	the	the	DT
37894	397	15	altitude	altitude	NN
37894	397	16	of	of	IN
37894	397	17	migrating	migrate	VBG
37894	397	18	birds	bird	NNS
37894	397	19	by	by	IN
37894	397	20	the	the	DT
37894	397	21	principle	principle	NN
37894	397	22	of	of	IN
37894	397	23	parallax	parallax	NNP
37894	397	24	.	.	.
37894	398	1	In	in	IN
37894	398	2	this	this	DT
37894	398	3	method	method	NN
37894	398	4	,	,	,
37894	398	5	the	the	DT
37894	398	6	distance	distance	NN
37894	398	7	of	of	IN
37894	398	8	a	a	DT
37894	398	9	bird	bird	NN
37894	398	10	from	from	IN
37894	398	11	the	the	DT
37894	398	12	observers	observer	NNS
37894	398	13	is	be	VBZ
37894	398	14	calculated	calculate	VBN
37894	398	15	from	from	IN
37894	398	16	its	-PRON-	PRP$
37894	398	17	apparent	apparent	JJ
37894	398	18	displacement	displacement	NN
37894	398	19	on	on	IN
37894	398	20	the	the	DT
37894	398	21	moon	moon	NN
37894	398	22	as	as	IN
37894	398	23	seen	see	VBN
37894	398	24	through	through	IN
37894	398	25	two	two	CD
37894	398	26	telescopes	telescope	NNS
37894	398	27	.	.	.
37894	399	1	Stebbins	stebbin	NNS
37894	399	2	and	and	CC
37894	399	3	his	-PRON-	PRP$
37894	399	4	colleague	colleague	NN
37894	399	5	,	,	,
37894	399	6	Carpenter	Carpenter	NNP
37894	399	7	,	,	,
37894	399	8	published	publish	VBD
37894	399	9	the	the	DT
37894	399	10	results	result	NNS
37894	399	11	of	of	IN
37894	399	12	two	two	CD
37894	399	13	nights	night	NNS
37894	399	14	of	of	IN
37894	399	15	observation	observation	NN
37894	399	16	at	at	IN
37894	399	17	Urbana	Urbana	NNP
37894	399	18	,	,	,
37894	399	19	Illinois	Illinois	NNP
37894	399	20	(	(	-LRB-
37894	399	21	Stebbins	Stebbins	NNP
37894	399	22	,	,	,
37894	399	23	1906	1906	CD
37894	399	24	;	;	:
37894	399	25	Carpenter	Carpenter	NNP
37894	399	26	,	,	,
37894	399	27	1906	1906	CD
37894	399	28	)	)	-RRB-
37894	399	29	;	;	:
37894	399	30	and	and	CC
37894	399	31	then	then	RB
37894	399	32	the	the	DT
37894	399	33	idea	idea	NN
37894	399	34	was	be	VBD
37894	399	35	dropped	drop	VBN
37894	399	36	until	until	IN
37894	399	37	1945	1945	CD
37894	399	38	,	,	,
37894	399	39	when	when	WRB
37894	399	40	Rense	Rense	NNP
37894	399	41	and	and	CC
37894	399	42	I	-PRON-	PRP
37894	399	43	briefly	briefly	RB
37894	399	44	applied	apply	VBD
37894	399	45	an	an	DT
37894	399	46	adaptation	adaptation	NN
37894	399	47	of	of	IN
37894	399	48	it	-PRON-	PRP
37894	399	49	to	to	IN
37894	399	50	migration	migration	VB
37894	399	51	studies	study	NNS
37894	399	52	at	at	IN
37894	399	53	Baton	Baton	NNP
37894	399	54	Rouge	Rouge	NNP
37894	399	55	.	.	.
37894	400	1	Results	result	NNS
37894	400	2	have	have	VBP
37894	400	3	been	be	VBN
37894	400	4	inconclusive	inconclusive	JJ
37894	400	5	.	.	.
37894	401	1	This	this	DT
37894	401	2	is	be	VBZ
37894	401	3	partly	partly	RB
37894	401	4	because	because	IN
37894	401	5	sufficient	sufficient	JJ
37894	401	6	work	work	NN
37894	401	7	has	have	VBZ
37894	401	8	not	not	RB
37894	401	9	been	be	VBN
37894	401	10	done	do	VBN
37894	401	11	,	,	,
37894	401	12	partly	partly	RB
37894	401	13	because	because	IN
37894	401	14	of	of	IN
37894	401	15	limitations	limitation	NNS
37894	401	16	in	in	IN
37894	401	17	the	the	DT
37894	401	18	method	method	NN
37894	401	19	itself	-PRON-	PRP
37894	401	20	.	.	.
37894	402	1	If	if	IN
37894	402	2	the	the	DT
37894	402	3	two	two	CD
37894	402	4	telescopes	telescope	NNS
37894	402	5	are	be	VBP
37894	402	6	widely	widely	RB
37894	402	7	spaced	space	VBN
37894	402	8	,	,	,
37894	402	9	few	few	JJ
37894	402	10	birds	bird	NNS
37894	402	11	are	be	VBP
37894	402	12	seen	see	VBN
37894	402	13	by	by	IN
37894	402	14	both	both	DT
37894	402	15	observers	observer	NNS
37894	402	16	,	,	,
37894	402	17	and	and	CC
37894	402	18	hence	hence	RB
37894	402	19	few	few	JJ
37894	402	20	parallaxes	parallax	NNS
37894	402	21	are	be	VBP
37894	402	22	obtained	obtain	VBN
37894	402	23	.	.	.
37894	403	1	If	if	IN
37894	403	2	the	the	DT
37894	403	3	instruments	instrument	NNS
37894	403	4	are	be	VBP
37894	403	5	brought	bring	VBN
37894	403	6	close	close	RB
37894	403	7	together	together	RB
37894	403	8	,	,	,
37894	403	9	the	the	DT
37894	403	10	displacement	displacement	NN
37894	403	11	of	of	IN
37894	403	12	the	the	DT
37894	403	13	images	image	NNS
37894	403	14	is	be	VBZ
37894	403	15	so	so	RB
37894	403	16	reduced	reduced	JJ
37894	403	17	that	that	IN
37894	403	18	extremely	extremely	RB
37894	403	19	fine	fine	JJ
37894	403	20	readings	reading	NNS
37894	403	21	of	of	IN
37894	403	22	their	-PRON-	PRP$
37894	403	23	positions	position	NNS
37894	403	24	are	be	VBP
37894	403	25	required	require	VBN
37894	403	26	,	,	,
37894	403	27	and	and	CC
37894	403	28	the	the	DT
37894	403	29	margin	margin	NN
37894	403	30	of	of	IN
37894	403	31	error	error	NN
37894	403	32	is	be	VBZ
37894	403	33	greatly	greatly	RB
37894	403	34	increased	increase	VBN
37894	403	35	.	.	.
37894	404	1	Neither	neither	DT
37894	404	2	alternative	alternative	NN
37894	404	3	can	can	MD
37894	404	4	provide	provide	VB
37894	404	5	an	an	DT
37894	404	6	accurate	accurate	JJ
37894	404	7	representative	representative	JJ
37894	404	8	sample	sample	NN
37894	404	9	of	of	IN
37894	404	10	the	the	DT
37894	404	11	altitudinal	altitudinal	JJ
37894	404	12	distribution	distribution	NN
37894	404	13	of	of	IN
37894	404	14	migrants	migrant	NNS
37894	404	15	at	at	IN
37894	404	16	a	a	DT
37894	404	17	station	station	NN
37894	404	18	on	on	IN
37894	404	19	a	a	DT
37894	404	20	single	single	JJ
37894	404	21	night	night	NN
37894	404	22	.	.	.
37894	405	1	New	new	JJ
37894	405	2	approaches	approach	NNS
37894	405	3	currently	currently	RB
37894	405	4	under	under	IN
37894	405	5	consideration	consideration	NN
37894	405	6	have	have	VBP
37894	405	7	not	not	RB
37894	405	8	yet	yet	RB
37894	405	9	been	be	VBN
37894	405	10	perfected	perfect	VBN
37894	405	11	.	.	.
37894	406	1	Meanwhile	meanwhile	RB
37894	406	2	the	the	DT
37894	406	3	idea	idea	NN
37894	406	4	of	of	IN
37894	406	5	uniform	uniform	JJ
37894	406	6	vertical	vertical	JJ
37894	406	7	distribution	distribution	NN
37894	406	8	of	of	IN
37894	406	9	migrants	migrant	NNS
37894	406	10	must	must	MD
37894	406	11	be	be	VB
37894	406	12	dismissed	dismiss	VBN
37894	406	13	from	from	IN
37894	406	14	serious	serious	JJ
37894	406	15	consideration	consideration	NN
37894	406	16	on	on	IN
37894	406	17	logical	logical	JJ
37894	406	18	grounds	ground	NNS
37894	406	19	.	.	.
37894	407	1	We	-PRON-	PRP
37894	407	2	know	know	VBP
37894	407	3	that	that	IN
37894	407	4	bird	bird	NN
37894	407	5	flight	flight	NN
37894	407	6	can	can	MD
37894	407	7	not	not	RB
37894	407	8	extend	extend	VB
37894	407	9	endlessly	endlessly	RB
37894	407	10	upward	upward	RB
37894	407	11	into	into	IN
37894	407	12	the	the	DT
37894	407	13	sky	sky	NN
37894	407	14	,	,	,
37894	407	15	and	and	CC
37894	407	16	the	the	DT
37894	407	17	notion	notion	NN
37894	407	18	that	that	IN
37894	407	19	there	there	EX
37894	407	20	might	may	MD
37894	407	21	be	be	VB
37894	407	22	a	a	DT
37894	407	23	point	point	NN
37894	407	24	to	to	TO
37894	407	25	which	which	WDT
37894	407	26	bird	bird	NN
37894	407	27	density	density	NN
37894	407	28	extends	extend	VBZ
37894	407	29	in	in	IN
37894	407	30	considerable	considerable	JJ
37894	407	31	magnitude	magnitude	NN
37894	407	32	and	and	CC
37894	407	33	then	then	RB
37894	407	34	abruptly	abruptly	RB
37894	407	35	drops	drop	VBZ
37894	407	36	off	off	RP
37894	407	37	to	to	IN
37894	407	38	nothing	nothing	NN
37894	407	39	is	be	VBZ
37894	407	40	absurd	absurd	JJ
37894	407	41	.	.	.
37894	408	1	It	-PRON-	PRP
37894	408	2	is	be	VBZ
37894	408	3	far	far	RB
37894	408	4	more	more	RBR
37894	408	5	likely	likely	JJ
37894	408	6	that	that	IN
37894	408	7	the	the	DT
37894	408	8	migrants	migrant	NNS
37894	408	9	gradually	gradually	RB
37894	408	10	dwindle	dwindle	VBP
37894	408	11	in	in	IN
37894	408	12	number	number	NN
37894	408	13	through	through	IN
37894	408	14	the	the	DT
37894	408	15	upper	upper	JJ
37894	408	16	limits	limit	NNS
37894	408	17	at	at	IN
37894	408	18	which	which	WDT
37894	408	19	they	-PRON-	PRP
37894	408	20	fly	fly	VBP
37894	408	21	,	,	,
37894	408	22	and	and	CC
37894	408	23	the	the	DT
37894	408	24	parallax	parallax	NN
37894	408	25	observations	observation	NNS
37894	408	26	we	-PRON-	PRP
37894	408	27	have	have	VBP
37894	408	28	seem	seem	VB
37894	408	29	to	to	TO
37894	408	30	support	support	VB
37894	408	31	this	this	DT
37894	408	32	view	view	NN
37894	408	33	.	.	.
37894	409	1	Under	under	IN
37894	409	2	these	these	DT
37894	409	3	conditions	condition	NNS
37894	409	4	,	,	,
37894	409	5	there	there	EX
37894	409	6	would	would	MD
37894	409	7	be	be	VB
37894	409	8	a	a	DT
37894	409	9	lighter	light	JJR
37894	409	10	incidence	incidence	NN
37894	409	11	of	of	IN
37894	409	12	birds	bird	NNS
37894	409	13	in	in	IN
37894	409	14	the	the	DT
37894	409	15	sample	sample	NN
37894	409	16	triangle	triangle	NN
37894	409	17	than	than	IN
37894	409	18	in	in	IN
37894	409	19	the	the	DT
37894	409	20	upright	upright	JJ
37894	409	21	triangle	triangle	NN
37894	409	22	beside	beside	IN
37894	409	23	it	-PRON-	PRP
37894	409	24	(	(	-LRB-
37894	409	25	Figure	figure	NN
37894	409	26	11	11	CD
37894	409	27	,	,	,
37894	409	28	Diagram	Diagram	NNP
37894	409	29	III	III	NNP
37894	409	30	)	)	-RRB-
37894	409	31	.	.	.
37894	410	1	Compensation	compensation	NN
37894	410	2	can	can	MD
37894	410	3	be	be	VB
37894	410	4	made	make	VBN
37894	410	5	by	by	IN
37894	410	6	deliberately	deliberately	RB
37894	410	7	scaling	scale	VBG
37894	410	8	down	down	RP
37894	410	9	the	the	DT
37894	410	10	computed	compute	VBN
37894	410	11	size	size	NN
37894	410	12	of	of	IN
37894	410	13	the	the	DT
37894	410	14	sample	sample	NN
37894	410	15	area	area	NN
37894	410	16	below	below	IN
37894	410	17	its	-PRON-	PRP$
37894	410	18	actual	actual	JJ
37894	410	19	size	size	NN
37894	410	20	.	.	.
37894	411	1	A	a	DT
37894	411	2	procedure	procedure	NN
37894	411	3	for	for	IN
37894	411	4	doing	do	VBG
37894	411	5	this	this	DT
37894	411	6	is	be	VBZ
37894	411	7	explained	explain	VBN
37894	411	8	in	in	IN
37894	411	9	Figure	Figure	NNP
37894	411	10	11	11	CD
37894	411	11	.	.	.
37894	412	1	If	if	IN
37894	412	2	it	-PRON-	PRP
37894	412	3	were	be	VBD
37894	412	4	applied	apply	VBN
37894	412	5	to	to	IN
37894	412	6	present	present	JJ
37894	412	7	altitudinal	altitudinal	JJ
37894	412	8	data	datum	NNS
37894	412	9	,	,	,
37894	412	10	it	-PRON-	PRP
37894	412	11	would	would	MD
37894	412	12	place	place	VB
37894	412	13	the	the	DT
37894	412	14	computational	computational	JJ
37894	412	15	flight	flight	NN
37894	412	16	ceiling	ceiling	NN
37894	412	17	somewhere	somewhere	RB
37894	412	18	below	below	IN
37894	412	19	4000	4000	CD
37894	412	20	feet	foot	NNS
37894	412	21	.	.	.
37894	413	1	In	in	IN
37894	413	2	arriving	arrive	VBG
37894	413	3	at	at	IN
37894	413	4	the	the	DT
37894	413	5	flight	flight	NN
37894	413	6	densities	density	NNS
37894	413	7	used	use	VBN
37894	413	8	in	in	IN
37894	413	9	this	this	DT
37894	413	10	paper	paper	NN
37894	413	11	,	,	,
37894	413	12	however	however	RB
37894	413	13	,	,	,
37894	413	14	I	-PRON-	PRP
37894	413	15	have	have	VBP
37894	413	16	used	use	VBN
37894	413	17	an	an	DT
37894	413	18	assumed	assume	VBN
37894	413	19	ceiling	ceiling	NN
37894	413	20	of	of	IN
37894	413	21	one	one	CD
37894	413	22	mile	mile	NN
37894	413	23	.	.	.
37894	414	1	When	when	WRB
37894	414	2	the	the	DT
37894	414	3	altitude	altitude	NN
37894	414	4	factor	factor	NN
37894	414	5	is	be	VBZ
37894	414	6	thus	thus	RB
37894	414	7	assigned	assign	VBN
37894	414	8	a	a	DT
37894	414	9	value	value	NN
37894	414	10	of	of	IN
37894	414	11	1	1	CD
37894	414	12	,	,	,
37894	414	13	it	-PRON-	PRP
37894	414	14	disappears	disappear	VBZ
37894	414	15	from	from	IN
37894	414	16	the	the	DT
37894	414	17	formula	formula	NN
37894	414	18	,	,	,
37894	414	19	simplifying	simplify	VBG
37894	414	20	computations	computation	NNS
37894	414	21	.	.	.
37894	415	1	Until	until	IN
37894	415	2	the	the	DT
37894	415	3	true	true	JJ
37894	415	4	situation	situation	NN
37894	415	5	with	with	IN
37894	415	6	respect	respect	NN
37894	415	7	to	to	IN
37894	415	8	the	the	DT
37894	415	9	vertical	vertical	JJ
37894	415	10	distribution	distribution	NN
37894	415	11	of	of	IN
37894	415	12	flight	flight	NN
37894	415	13	is	be	VBZ
37894	415	14	better	well	RBR
37894	415	15	understood	understand	VBN
37894	415	16	,	,	,
37894	415	17	it	-PRON-	PRP
37894	415	18	seems	seem	VBZ
37894	415	19	hardly	hardly	RB
37894	415	20	worthwhile	worthwhile	JJ
37894	415	21	to	to	TO
37894	415	22	sacrifice	sacrifice	VB
37894	415	23	the	the	DT
37894	415	24	convenience	convenience	NN
37894	415	25	of	of	IN
37894	415	26	this	this	DT
37894	415	27	approximation	approximation	NN
37894	415	28	to	to	IN
37894	415	29	a	a	DT
37894	415	30	rigorous	rigorous	JJ
37894	415	31	interpretation	interpretation	NN
37894	415	32	of	of	IN
37894	415	33	scanty	scanty	NN
37894	415	34	data	datum	NNS
37894	415	35	.	.	.
37894	416	1	This	this	DT
37894	416	2	particular	particular	JJ
37894	416	3	uncertainty	uncertainty	NN
37894	416	4	,	,	,
37894	416	5	however	however	RB
37894	416	6	,	,	,
37894	416	7	does	do	VBZ
37894	416	8	not	not	RB
37894	416	9	necessarily	necessarily	RB
37894	416	10	impair	impair	VB
37894	416	11	the	the	DT
37894	416	12	analytical	analytical	JJ
37894	416	13	value	value	NN
37894	416	14	of	of	IN
37894	416	15	the	the	DT
37894	416	16	computations	computation	NNS
37894	416	17	.	.	.
37894	417	1	Provided	provide	VBN
37894	417	2	that	that	IN
37894	417	3	the	the	DT
37894	417	4	vertical	vertical	JJ
37894	417	5	pattern	pattern	NN
37894	417	6	of	of	IN
37894	417	7	migration	migration	NN
37894	417	8	is	be	VBZ
37894	417	9	more	more	RBR
37894	417	10	or	or	CC
37894	417	11	less	less	RBR
37894	417	12	constant	constant	JJ
37894	417	13	,	,	,
37894	417	14	flight	flight	NN
37894	417	15	densities	density	NNS
37894	417	16	still	still	RB
37894	417	17	afford	afford	VB
37894	417	18	a	a	DT
37894	417	19	sound	sound	JJ
37894	417	20	basis	basis	NN
37894	417	21	for	for	IN
37894	417	22	comparisons	comparison	NNS
37894	417	23	,	,	,
37894	417	24	wherever	wherever	WRB
37894	417	25	we	-PRON-	PRP
37894	417	26	assume	assume	VBP
37894	417	27	the	the	DT
37894	417	28	upper	upper	JJ
37894	417	29	flight	flight	NN
37894	417	30	limits	limit	NNS
37894	417	31	to	to	TO
37894	417	32	be	be	VB
37894	417	33	.	.	.
37894	418	1	Raising	raise	VBG
37894	418	2	or	or	CC
37894	418	3	lowering	lower	VBG
37894	418	4	the	the	DT
37894	418	5	flight	flight	NN
37894	418	6	ceiling	ceiling	NN
37894	418	7	merely	merely	RB
37894	418	8	increases	increase	VBZ
37894	418	9	or	or	CC
37894	418	10	reduces	reduce	VBZ
37894	418	11	all	all	DT
37894	418	12	sample	sample	NN
37894	418	13	cones	cone	NNS
37894	418	14	or	or	CC
37894	418	15	triangles	triangle	NNS
37894	418	16	proportionately	proportionately	RB
37894	418	17	.	.	.
37894	419	1	A	a	DT
37894	419	2	more	more	RBR
37894	419	3	serious	serious	JJ
37894	419	4	possibility	possibility	NN
37894	419	5	is	be	VBZ
37894	419	6	that	that	IN
37894	419	7	the	the	DT
37894	419	8	altitudinal	altitudinal	JJ
37894	419	9	pattern	pattern	NN
37894	419	10	may	may	MD
37894	419	11	vary	vary	VB
37894	419	12	according	accord	VBG
37894	419	13	to	to	IN
37894	419	14	time	time	NN
37894	419	15	or	or	CC
37894	419	16	place	place	NN
37894	419	17	.	.	.
37894	420	1	This	this	DT
37894	420	2	might	may	MD
37894	420	3	upset	upset	VB
37894	420	4	comparisons	comparison	NNS
37894	420	5	.	.	.
37894	421	1	If	if	IN
37894	421	2	the	the	DT
37894	421	3	divergencies	divergency	NNS
37894	421	4	were	be	VBD
37894	421	5	severe	severe	JJ
37894	421	6	enough	enough	RB
37894	421	7	and	and	CC
37894	421	8	frequent	frequent	JJ
37894	421	9	enough	enough	RB
37894	421	10	,	,	,
37894	421	11	they	-PRON-	PRP
37894	421	12	could	could	MD
37894	421	13	throw	throw	VB
37894	421	14	the	the	DT
37894	421	15	study	study	NN
37894	421	16	of	of	IN
37894	421	17	flight	flight	NN
37894	421	18	densities	density	NNS
37894	421	19	into	into	IN
37894	421	20	utter	utter	JJ
37894	421	21	confusion	confusion	NN
37894	421	22	.	.	.
37894	422	1	This	this	DT
37894	422	2	consideration	consideration	NN
37894	422	3	of	of	IN
37894	422	4	possible	possible	JJ
37894	422	5	variation	variation	NN
37894	422	6	in	in	IN
37894	422	7	the	the	DT
37894	422	8	altitudinal	altitudinal	JJ
37894	422	9	pattern	pattern	NN
37894	422	10	combines	combine	VBZ
37894	422	11	with	with	IN
37894	422	12	accidents	accident	NNS
37894	422	13	of	of	IN
37894	422	14	sampling	sampling	NN
37894	422	15	and	and	CC
37894	422	16	the	the	DT
37894	422	17	concessions	concession	NNS
37894	422	18	to	to	TO
37894	422	19	perfect	perfect	VB
37894	422	20	accuracy	accuracy	NN
37894	422	21	,	,	,
37894	422	22	explained	explain	VBD
37894	422	23	on	on	IN
37894	422	24	pages	page	NNS
37894	422	25	379	379	CD
37894	422	26	-	-	SYM
37894	422	27	385	385	CD
37894	422	28	,	,	,
37894	422	29	to	to	TO
37894	422	30	give	give	VB
37894	422	31	to	to	IN
37894	422	32	small	small	JJ
37894	422	33	quantities	quantity	NNS
37894	422	34	of	of	IN
37894	422	35	data	datum	NNS
37894	422	36	an	an	DT
37894	422	37	equivocal	equivocal	JJ
37894	422	38	quality	quality	NN
37894	422	39	.	.	.
37894	423	1	As	as	IN
37894	423	2	large	large	JJ
37894	423	3	-	-	HYPH
37894	423	4	scale	scale	NN
37894	423	5	as	as	IN
37894	423	6	the	the	DT
37894	423	7	present	present	JJ
37894	423	8	survey	survey	NN
37894	423	9	is	be	VBZ
37894	423	10	from	from	IN
37894	423	11	one	one	CD
37894	423	12	point	point	NN
37894	423	13	of	of	IN
37894	423	14	view	view	NN
37894	423	15	,	,	,
37894	423	16	it	-PRON-	PRP
37894	423	17	is	be	VBZ
37894	423	18	only	only	RB
37894	423	19	a	a	DT
37894	423	20	beginning	beginning	NN
37894	423	21	.	.	.
37894	424	1	Years	year	NNS
37894	424	2	of	of	IN
37894	424	3	intensive	intensive	JJ
37894	424	4	work	work	NN
37894	424	5	and	and	CC
37894	424	6	development	development	NN
37894	424	7	leading	lead	VBG
37894	424	8	to	to	IN
37894	424	9	a	a	DT
37894	424	10	vast	vast	JJ
37894	424	11	accumulation	accumulation	NN
37894	424	12	of	of	IN
37894	424	13	data	datum	NNS
37894	424	14	must	must	MD
37894	424	15	elapse	elapse	VB
37894	424	16	before	before	IN
37894	424	17	the	the	DT
37894	424	18	preliminary	preliminary	JJ
37894	424	19	indications	indication	NNS
37894	424	20	yet	yet	CC
37894	424	21	discernible	discernible	JJ
37894	424	22	assume	assume	VBP
37894	424	23	the	the	DT
37894	424	24	status	status	NN
37894	424	25	of	of	IN
37894	424	26	proved	proved	JJ
37894	424	27	principles	principle	NNS
37894	424	28	.	.	.
37894	425	1	As	as	IN
37894	425	2	a	a	DT
37894	425	3	result	result	NN
37894	425	4	,	,	,
37894	425	5	much	much	JJ
37894	425	6	of	of	IN
37894	425	7	the	the	DT
37894	425	8	discussion	discussion	NN
37894	425	9	in	in	IN
37894	425	10	Part	Part	NNP
37894	425	11	II	II	NNP
37894	425	12	of	of	IN
37894	425	13	this	this	DT
37894	425	14	paper	paper	NN
37894	425	15	is	be	VBZ
37894	425	16	speculative	speculative	JJ
37894	425	17	in	in	IN
37894	425	18	intent	intent	NN
37894	425	19	,	,	,
37894	425	20	and	and	CC
37894	425	21	most	most	JJS
37894	425	22	of	of	IN
37894	425	23	the	the	DT
37894	425	24	conclusions	conclusion	NNS
37894	425	25	suggested	suggest	VBN
37894	425	26	are	be	VBP
37894	425	27	of	of	IN
37894	425	28	a	a	DT
37894	425	29	provisional	provisional	JJ
37894	425	30	nature	nature	NN
37894	425	31	.	.	.
37894	426	1	Yet	yet	RB
37894	426	2	,	,	,
37894	426	3	compared	compare	VBN
37894	426	4	with	with	IN
37894	426	5	similar	similar	JJ
37894	426	6	procedures	procedure	NNS
37894	426	7	in	in	IN
37894	426	8	its	-PRON-	PRP$
37894	426	9	field	field	NN
37894	426	10	,	,	,
37894	426	11	flight	flight	NN
37894	426	12	density	density	NN
37894	426	13	study	study	NN
37894	426	14	is	be	VBZ
37894	426	15	a	a	DT
37894	426	16	highly	highly	RB
37894	426	17	objective	objective	JJ
37894	426	18	method	method	NN
37894	426	19	,	,	,
37894	426	20	and	and	CC
37894	426	21	a	a	DT
37894	426	22	relatively	relatively	RB
37894	426	23	reliable	reliable	JJ
37894	426	24	one	one	CD
37894	426	25	.	.	.
37894	427	1	In	in	IN
37894	427	2	no	no	DT
37894	427	3	other	other	JJ
37894	427	4	type	type	NN
37894	427	5	of	of	IN
37894	427	6	bird	bird	NN
37894	427	7	census	census	NN
37894	427	8	has	have	VBZ
37894	427	9	there	there	EX
37894	427	10	ever	ever	RB
37894	427	11	been	be	VBN
37894	427	12	so	so	RB
37894	427	13	near	near	IN
37894	427	14	a	a	DT
37894	427	15	certainty	certainty	NN
37894	427	16	of	of	IN
37894	427	17	recording	record	VBG
37894	427	18	_	_	NNP
37894	427	19	all	all	DT
37894	427	20	_	_	NNP
37894	427	21	of	of	IN
37894	427	22	the	the	DT
37894	427	23	individuals	individual	NNS
37894	427	24	in	in	IN
37894	427	25	a	a	DT
37894	427	26	specified	specify	VBN
37894	427	27	space	space	NN
37894	427	28	,	,	,
37894	427	29	so	so	RB
37894	427	30	nearly	nearly	RB
37894	427	31	independently	independently	RB
37894	427	32	of	of	IN
37894	427	33	the	the	DT
37894	427	34	subjective	subjective	JJ
37894	427	35	interpretations	interpretation	NNS
37894	427	36	of	of	IN
37894	427	37	the	the	DT
37894	427	38	observer	observer	NN
37894	427	39	.	.	.
37894	428	1	The	the	DT
37894	428	2	best	good	JJS
37894	428	3	assurance	assurance	NN
37894	428	4	of	of	IN
37894	428	5	the	the	DT
37894	428	6	essential	essential	JJ
37894	428	7	soundness	soundness	NN
37894	428	8	of	of	IN
37894	428	9	the	the	DT
37894	428	10	flight	flight	NN
37894	428	11	density	density	NN
37894	428	12	computations	computation	NNS
37894	428	13	lies	lie	VBZ
37894	428	14	in	in	IN
37894	428	15	the	the	DT
37894	428	16	coherent	coherent	JJ
37894	428	17	results	result	NNS
37894	428	18	and	and	CC
37894	428	19	the	the	DT
37894	428	20	orderly	orderly	JJ
37894	428	21	patterns	pattern	NNS
37894	428	22	that	that	WDT
37894	428	23	already	already	RB
37894	428	24	emerge	emerge	VBP
37894	428	25	from	from	IN
37894	428	26	the	the	DT
37894	428	27	analyses	analysis	NNS
37894	428	28	presented	present	VBN
37894	428	29	in	in	IN
37894	428	30	Part	Part	NNP
37894	428	31	II	II	NNP
37894	428	32	.	.	.
37894	429	1	B.	B.	NNP
37894	429	2	OBSERVATIONAL	OBSERVATIONAL	NNP
37894	429	3	PROCEDURE	PROCEDURE	NNP
37894	429	4	AND	and	CC
37894	429	5	THE	the	DT
37894	429	6	PROCESSING	processing	NN
37894	429	7	OF	of	IN
37894	429	8	DATA	datum	NNS
37894	429	9	At	at	IN
37894	429	10	least	least	JJS
37894	429	11	two	two	CD
37894	429	12	people	people	NNS
37894	429	13	are	be	VBP
37894	429	14	required	require	VBN
37894	429	15	to	to	TO
37894	429	16	operate	operate	VB
37894	429	17	an	an	DT
37894	429	18	observation	observation	NN
37894	429	19	station	station	NN
37894	429	20	--	--	:
37894	429	21	one	one	NN
37894	429	22	to	to	TO
37894	429	23	observe	observe	VB
37894	429	24	,	,	,
37894	429	25	the	the	DT
37894	429	26	other	other	JJ
37894	429	27	to	to	TO
37894	429	28	record	record	VB
37894	429	29	the	the	DT
37894	429	30	results	result	NNS
37894	429	31	.	.	.
37894	430	1	They	-PRON-	PRP
37894	430	2	should	should	MD
37894	430	3	exchange	exchange	VB
37894	430	4	duties	duty	NNS
37894	430	5	every	every	DT
37894	430	6	hour	hour	NN
37894	430	7	to	to	TO
37894	430	8	avoid	avoid	VB
37894	430	9	undue	undue	JJ
37894	430	10	eye	eye	NN
37894	430	11	fatigue	fatigue	NN
37894	430	12	.	.	.
37894	431	1	Additional	additional	JJ
37894	431	2	personnel	personnel	NNS
37894	431	3	are	be	VBP
37894	431	4	desirable	desirable	JJ
37894	431	5	so	so	IN
37894	431	6	that	that	IN
37894	431	7	the	the	DT
37894	431	8	night	night	NN
37894	431	9	can	can	MD
37894	431	10	be	be	VB
37894	431	11	divided	divide	VBN
37894	431	12	into	into	IN
37894	431	13	shifts	shift	NNS
37894	431	14	.	.	.
37894	432	1	Essential	essential	JJ
37894	432	2	materials	material	NNS
37894	432	3	and	and	CC
37894	432	4	equipment	equipment	NN
37894	432	5	include	include	VBP
37894	432	6	:	:	:
37894	432	7	(	(	-LRB-
37894	432	8	1	1	LS
37894	432	9	)	)	-RRB-
37894	432	10	a	a	DT
37894	432	11	small	small	JJ
37894	432	12	telescope	telescope	NN
37894	432	13	;	;	:
37894	432	14	(	(	-LRB-
37894	432	15	2	2	LS
37894	432	16	)	)	-RRB-
37894	432	17	a	a	DT
37894	432	18	tripod	tripod	NN
37894	432	19	with	with	IN
37894	432	20	pan	pan	NN
37894	432	21	-	-	HYPH
37894	432	22	tilt	tilt	JJ
37894	432	23	or	or	CC
37894	432	24	turret	turret	NN
37894	432	25	head	head	NN
37894	432	26	and	and	CC
37894	432	27	a	a	DT
37894	432	28	mounting	mount	VBG
37894	432	29	cradle	cradle	NN
37894	432	30	;	;	:
37894	432	31	(	(	-LRB-
37894	432	32	3	3	LS
37894	432	33	)	)	-RRB-
37894	432	34	data	data	NN
37894	432	35	sheets	sheet	NNS
37894	432	36	similar	similar	JJ
37894	432	37	to	to	IN
37894	432	38	the	the	DT
37894	432	39	one	one	NN
37894	432	40	illustrated	illustrate	VBN
37894	432	41	in	in	IN
37894	432	42	Figure	Figure	NNP
37894	432	43	12	12	CD
37894	432	44	.	.	.
37894	433	1	Bausch	Bausch	NNP
37894	433	2	and	and	CC
37894	433	3	Lomb	Lomb	NNP
37894	433	4	or	or	CC
37894	433	5	Argus	Argus	NNP
37894	433	6	spotting	spot	VBG
37894	433	7	scopes	scope	NNS
37894	433	8	(	(	-LRB-
37894	433	9	19.5	19.5	CD
37894	433	10	×	×	NNS
37894	433	11	)	)	-RRB-
37894	433	12	and	and	CC
37894	433	13	astronomical	astronomical	JJ
37894	433	14	telescopes	telescope	NNS
37894	433	15	up	up	IN
37894	433	16	to	to	IN
37894	433	17	30-	30-	CD
37894	433	18	or	or	CC
37894	433	19	40-power	40-power	CD
37894	433	20	are	be	VBP
37894	433	21	ideal	ideal	JJ
37894	433	22	.	.	.
37894	434	1	Instruments	instrument	NNS
37894	434	2	of	of	IN
37894	434	3	higher	high	JJR
37894	434	4	magnification	magnification	NN
37894	434	5	are	be	VBP
37894	434	6	subject	subject	JJ
37894	434	7	to	to	IN
37894	434	8	vibration	vibration	NN
37894	434	9	,	,	,
37894	434	10	unless	unless	IN
37894	434	11	very	very	RB
37894	434	12	firmly	firmly	RB
37894	434	13	mounted	mount	VBN
37894	434	14	,	,	,
37894	434	15	and	and	CC
37894	434	16	lead	lead	NN
37894	434	17	to	to	IN
37894	434	18	difficulties	difficulty	NNS
37894	434	19	in	in	IN
37894	434	20	following	follow	VBG
37894	434	21	the	the	DT
37894	434	22	progress	progress	NN
37894	434	23	of	of	IN
37894	434	24	the	the	DT
37894	434	25	moon	moon	NN
37894	434	26	,	,	,
37894	434	27	unless	unless	IN
37894	434	28	powered	power	VBN
37894	434	29	by	by	IN
37894	434	30	clockwork	clockwork	NN
37894	434	31	.	.	.
37894	435	1	Cradles	cradle	NNS
37894	435	2	usually	usually	RB
37894	435	3	have	have	VBP
37894	435	4	to	to	TO
37894	435	5	be	be	VB
37894	435	6	devised	devise	VBN
37894	435	7	.	.	.
37894	436	1	An	an	DT
37894	436	2	adjustable	adjustable	JJ
37894	436	3	lawn	lawn	NN
37894	436	4	chair	chair	NN
37894	436	5	is	be	VBZ
37894	436	6	an	an	DT
37894	436	7	important	important	JJ
37894	436	8	factor	factor	NN
37894	436	9	in	in	IN
37894	436	10	comfort	comfort	NN
37894	436	11	in	in	IN
37894	436	12	latitudes	latitude	NNS
37894	436	13	where	where	WRB
37894	436	14	the	the	DT
37894	436	15	moon	moon	NN
37894	436	16	reaches	reach	VBZ
37894	436	17	a	a	DT
37894	436	18	point	point	NN
37894	436	19	high	high	JJ
37894	436	20	overhead	overhead	NN
37894	436	21	.	.	.
37894	437	1	[	[	-LRB-
37894	437	2	Illustration	illustration	NN
37894	437	3	:	:	:
37894	437	4	FIG	FIG	NNP
37894	437	5	.	.	.
37894	438	1	12	12	CD
37894	438	2	.	.	.
37894	439	1	Facsimile	facsimile	NN
37894	439	2	of	of	IN
37894	439	3	form	form	NN
37894	439	4	used	use	VBN
37894	439	5	to	to	TO
37894	439	6	record	record	VB
37894	439	7	data	datum	NNS
37894	439	8	in	in	IN
37894	439	9	the	the	DT
37894	439	10	field	field	NN
37894	439	11	.	.	.
37894	440	1	One	one	CD
37894	440	2	sheet	sheet	NN
37894	440	3	of	of	IN
37894	440	4	the	the	DT
37894	440	5	actual	actual	JJ
37894	440	6	observations	observation	NNS
37894	440	7	obtained	obtain	VBN
37894	440	8	at	at	IN
37894	440	9	Progreso	Progreso	NNP
37894	440	10	,	,	,
37894	440	11	Yucatán	Yucatán	NNP
37894	440	12	,	,	,
37894	440	13	on	on	IN
37894	440	14	April	April	NNP
37894	440	15	24	24	CD
37894	440	16	-	-	SYM
37894	440	17	25	25	CD
37894	440	18	,	,	,
37894	440	19	1948	1948	CD
37894	440	20	,	,	,
37894	440	21	is	be	VBZ
37894	440	22	reproduced	reproduce	VBN
37894	440	23	here	here	RB
37894	440	24	.	.	.
37894	441	1	The	the	DT
37894	441	2	remainder	remainder	NN
37894	441	3	of	of	IN
37894	441	4	this	this	DT
37894	441	5	set	set	NN
37894	441	6	of	of	IN
37894	441	7	data	datum	NNS
37894	441	8	,	,	,
37894	441	9	which	which	WDT
37894	441	10	is	be	VBZ
37894	441	11	to	to	TO
37894	441	12	be	be	VB
37894	441	13	used	use	VBN
37894	441	14	throughout	throughout	IN
37894	441	15	the	the	DT
37894	441	16	demonstration	demonstration	NN
37894	441	17	of	of	IN
37894	441	18	procedures	procedure	NNS
37894	441	19	,	,	,
37894	441	20	is	be	VBZ
37894	441	21	shown	show	VBN
37894	441	22	in	in	IN
37894	441	23	Table	Table	NNP
37894	441	24	1	1	CD
37894	441	25	.	.	.
37894	441	26	]	]	-RRB-
37894	442	1	[	[	-LRB-
37894	442	2	Transcription	Transcription	NNP
37894	442	3	of	of	IN
37894	442	4	Figure	Figure	NNP
37894	442	5	12	12	CD
37894	442	6	's	's	POS
37894	442	7	Data	Data	NNPS
37894	442	8	]	]	-RRB-
37894	442	9	ORIGINAL	original	JJ
37894	442	10	DATA	datum	NNS
37894	442	11	SHEET	SHEET	NNS
37894	442	12	DATE	DATE	NNP
37894	442	13	24	24	CD
37894	442	14	-	-	SYM
37894	442	15	25	25	CD
37894	442	16	April	April	NNP
37894	442	17	1948	1948	CD
37894	442	18	LOCALITY	LOCALITY	NNP
37894	442	19	Progreso	Progreso	NNP
37894	442	20	,	,	,
37894	442	21	Yucatán	Yucatán	NNP
37894	442	22	OBSERVERS	OBSERVERS	NNP
37894	442	23	Harold	Harold	NNP
37894	442	24	Harry	Harry	NNP
37894	442	25	;	;	:
37894	442	26	George	George	NNP
37894	442	27	H.	H.	NNP
37894	442	28	Lowery	Lowery	NNP
37894	442	29	WEATHER	WEATHER	NNP
37894	442	30	Moderate	Moderate	NNP
37894	442	31	to	to	IN
37894	442	32	strong	strong	JJ
37894	442	33	"	"	``
37894	442	34	trade	trade	NN
37894	442	35	"	"	''
37894	442	36	winds	wind	NNS
37894	442	37	along	along	IN
37894	442	38	coast	coast	NN
37894	442	39	,	,	,
37894	442	40	slightly	slightly	RB
37894	442	41	N	n	CD
37894	442	42	of	of	IN
37894	442	43	E.	E.	NNP
37894	442	44	Moon	Moon	NNP
37894	442	45	emerged	emerge	VBD
37894	442	46	above	above	IN
37894	442	47	low	low	JJ
37894	442	48	cloud	cloud	NN
37894	442	49	bank	bank	NNP
37894	442	50	at	at	IN
37894	442	51	8:26	8:26	CD
37894	442	52	.	.	.
37894	443	1	INSTRUMENT	INSTRUMENT	NNP
37894	443	2	B.	B.	NNP
37894	444	1	&	&	CC
37894	444	2	L.	L.	NNP
37894	444	3	19.5	19.5	CD
37894	444	4	Spotting	Spotting	NNP
37894	444	5	Scope	Scope	NNP
37894	444	6	;	;	:
37894	444	7	image	image	NN
37894	444	8	erect	erect	NN
37894	444	9	REMARKS	REMARKS	NNP
37894	444	10	Observation	Observation	NNP
37894	444	11	station	station	NN
37894	444	12	located	locate	VBD
37894	444	13	1	1	CD
37894	444	14	mile	mile	NN
37894	444	15	from	from	IN
37894	444	16	land	land	NN
37894	444	17	,	,	,
37894	444	18	over	over	IN
37894	444	19	Gulf	Gulf	NNP
37894	444	20	of	of	IN
37894	444	21	Mexico	Mexico	NNP
37894	444	22	,	,	,
37894	444	23	at	at	IN
37894	444	24	end	end	NN
37894	444	25	of	of	IN
37894	444	26	new	new	JJ
37894	444	27	Progreso	Progreso	NNP
37894	444	28	wharf	wharf	NN
37894	444	29	-----------+------+-------+----------------------------------------	-----------+------+-------+----------------------------------------	:
37894	444	30	TIME	TIME	NNP
37894	444	31	|	|	NNP
37894	444	32	IN	IN	NNP
37894	444	33	|	|	CD
37894	444	34	OUT	out	RP
37894	444	35	|	|	CD
37894	444	36	REMARKS	remarks	NN
37894	444	37	-----------+------+-------+----------------------------------------	-----------+------+-------+----------------------------------------	:
37894	444	38	C.S.T	C.S.T	NNP
37894	444	39	|	|	NNP
37894	444	40	|	|	NNP
37894	444	41	|	|	CD
37894	444	42	8:26	8:26	CD
37894	444	43	|	|	CD
37894	444	44	--	--	:
37894	444	45	|	|	JJ
37894	444	46	--	--	:
37894	444	47	|	|	CD
37894	444	48	observations	observation	NNS
37894	444	49	begin	begin	VBP
37894	444	50	;	;	:
37894	444	51	H.H.	H.H.	NNP
37894	445	1	observing	observe	VBG
37894	445	2	50	50	CD
37894	445	3	|	|	CD
37894	445	4	4:30	4:30	CD
37894	445	5	|	|	CD
37894	445	6	9	9	CD
37894	445	7	|	|	CD
37894	445	8	slow	slow	RB
37894	445	9	;	;	:
37894	445	10	small	small	JJ
37894	445	11	56	56	CD
37894	445	12	|	|	CD
37894	445	13	3	3	CD
37894	445	14	|	|	CD
37894	445	15	10	10	CD
37894	445	16	|	|	CD
37894	445	17	medium	medium	NN
37894	445	18	size	size	NN
37894	445	19	9:00	9:00	CD
37894	445	20	|	|	CD
37894	445	21	2	2	CD
37894	445	22	|	|	CD
37894	445	23	10:30	10:30	CD
37894	445	24	|	|	CD
37894	445	25	very	very	RB
37894	445	26	small	small	JJ
37894	445	27	11	11	CD
37894	445	28	|	|	CD
37894	445	29	5	5	CD
37894	445	30	|	|	CD
37894	445	31	9:30	9:30	CD
37894	445	32	|	|	CD
37894	445	33	moderately	moderately	RB
37894	445	34	fast	fast	VBP
37894	445	35	25	25	CD
37894	445	36	|	|	CD
37894	445	37	5	5	CD
37894	445	38	|	|	CD
37894	445	39	10	10	CD
37894	445	40	|	|	CD
37894	445	41	very	very	RB
37894	445	42	small	small	JJ
37894	445	43	;	;	:
37894	445	44	rather	rather	RB
37894	445	45	slow	slow	JJ
37894	445	46	26	26	CD
37894	445	47	|	|	CD
37894	445	48	3	3	CD
37894	445	49	|	|	CD
37894	445	50	11	11	CD
37894	445	51	|	|	CD
37894	445	52	"	"	''
37894	445	53	"	"	``
37894	445	54	36	36	CD
37894	445	55	|	|	CD
37894	445	56	5	5	CD
37894	445	57	|	|	CD
37894	445	58	10	10	CD
37894	445	59	|	|	CD
37894	445	60	medium	medium	NN
37894	445	61	size	size	NN
37894	445	62	40	40	CD
37894	445	63	|	|	CD
37894	445	64	3	3	CD
37894	445	65	|	|	CD
37894	445	66	10	10	CD
37894	445	67	|	|	CD
37894	445	68	"	"	''
37894	445	69	"	"	``
37894	445	70	43	43	CD
37894	445	71	|	|	CD
37894	445	72	5:30	5:30	CD
37894	445	73	|	|	CD
37894	445	74	9	9	CD
37894	445	75	|	|	CD
37894	445	76	"	"	''
37894	445	77	"	"	``
37894	445	78	46	46	CD
37894	445	79	|	|	CD
37894	445	80	3:30	3:30	CD
37894	445	81	|	|	CD
37894	445	82	10	10	CD
37894	445	83	|	|	CD
37894	445	84	small	small	JJ
37894	445	85	56	56	CD
37894	445	86	|	|	CD
37894	445	87	4:30	4:30	CD
37894	445	88	|	|	CD
37894	445	89	10	10	CD
37894	445	90	|	|	CD
37894	445	91	medium	medium	NN
37894	445	92	size	size	NN
37894	445	93	9:58	9:58	CD
37894	445	94	-	-	HYPH
37894	445	95	10:00	10:00	CD
37894	445	96	|	|	CD
37894	445	97	--	--	:
37894	445	98	|	|	JJ
37894	445	99	--	--	:
37894	445	100	|	|	CD
37894	445	101	time	time	NN
37894	445	102	out	out	RP
37894	445	103	to	to	TO
37894	445	104	change	change	VB
37894	445	105	observers	observer	NNS
37894	445	106	;	;	:
37894	445	107	G.L.	G.L.	NNP
37894	446	1	at	at	IN
37894	446	2	10:05	10:05	CD
37894	446	3	|	|	CD
37894	446	4	4:30	4:30	CD
37894	446	5	|	|	CD
37894	446	6	11:30	11:30	CD
37894	446	7	|	|	CD
37894	446	8	scope	scope	NN
37894	446	9	small	small	JJ
37894	446	10	06	06	CD
37894	446	11	|	|	CD
37894	446	12	3	3	CD
37894	446	13	|	|	CD
37894	446	14	11	11	CD
37894	446	15	|	|	CD
37894	446	16	12	12	CD
37894	446	17	|	|	CD
37894	446	18	5	5	CD
37894	446	19	|	|	CD
37894	446	20	8	8	CD
37894	446	21	|	|	CD
37894	446	22	very	very	RB
37894	446	23	small	small	JJ
37894	446	24	25	25	CD
37894	446	25	|	|	CD
37894	446	26	5	5	CD
37894	446	27	|	|	CD
37894	446	28	12	12	CD
37894	446	29	|	|	CD
37894	446	30	very	very	RB
37894	446	31	fast	fast	RB
37894	446	32	;	;	:
37894	446	33	small	small	JJ
37894	446	34	30	30	CD
37894	446	35	|	|	CD
37894	446	36	4	4	CD
37894	446	37	|	|	CD
37894	446	38	10	10	CD
37894	446	39	|	|	CD
37894	446	40	small	small	JJ
37894	446	41	32	32	CD
37894	446	42	|	|	CD
37894	446	43	4	4	CD
37894	446	44	|	|	CD
37894	446	45	11	11	CD
37894	446	46	|	|	CD
37894	446	47	"	"	``
37894	446	48	32	32	CD
37894	446	49	|	|	CD
37894	446	50	2	2	CD
37894	446	51	|	|	CD
37894	446	52	11	11	CD
37894	446	53	|	|	CD
37894	446	54	"	"	``
37894	446	55	33	33	CD
37894	446	56	|	|	CD
37894	446	57	5	5	CD
37894	446	58	|	|	CD
37894	446	59	11	11	CD
37894	446	60	|	|	CD
37894	446	61	"	"	``
37894	446	62	33	33	CD
37894	446	63	|	|	CD
37894	446	64	4	4	CD
37894	446	65	|	|	CD
37894	446	66	1	1	CD
37894	446	67	|	|	CD
37894	446	68	"	"	''
37894	446	69	33	33	CD
37894	446	70	|	|	CD
37894	446	71	5:30	5:30	CD
37894	446	72	|	|	CD
37894	446	73	11	11	CD
37894	446	74	|	|	CD
37894	446	75	"	"	``
37894	446	76	35	35	CD
37894	446	77	|	|	CD
37894	446	78	4:30	4:30	CD
37894	446	79	|	|	CD
37894	446	80	10	10	CD
37894	446	81	|	|	CD
37894	446	82	swallow	swallow	NN
37894	446	83	-	-	HYPH
37894	446	84	like	like	IN
37894	446	85	36	36	CD
37894	446	86	|	|	CD
37894	446	87	5	5	CD
37894	446	88	|	|	CD
37894	446	89	1:30	1:30	CD
37894	446	90	|	|	NNS
37894	446	91	As	as	RB
37894	446	92	much	much	JJ
37894	446	93	detail	detail	NN
37894	446	94	as	as	IN
37894	446	95	possible	possible	JJ
37894	446	96	should	should	MD
37894	446	97	be	be	VB
37894	446	98	entered	enter	VBN
37894	446	99	in	in	IN
37894	446	100	the	the	DT
37894	446	101	space	space	NN
37894	446	102	provided	provide	VBN
37894	446	103	at	at	IN
37894	446	104	the	the	DT
37894	446	105	top	top	NN
37894	446	106	of	of	IN
37894	446	107	the	the	DT
37894	446	108	data	datum	NNS
37894	446	109	sheet	sheet	NN
37894	446	110	.	.	.
37894	447	1	Information	information	NN
37894	447	2	on	on	IN
37894	447	3	the	the	DT
37894	447	4	weather	weather	NN
37894	447	5	should	should	MD
37894	447	6	include	include	VB
37894	447	7	temperature	temperature	NN
37894	447	8	,	,	,
37894	447	9	description	description	NN
37894	447	10	of	of	IN
37894	447	11	cloud	cloud	NN
37894	447	12	cover	cover	NN
37894	447	13	,	,	,
37894	447	14	if	if	IN
37894	447	15	any	any	DT
37894	447	16	,	,	,
37894	447	17	and	and	CC
37894	447	18	the	the	DT
37894	447	19	direction	direction	NN
37894	447	20	and	and	CC
37894	447	21	apparent	apparent	JJ
37894	447	22	speed	speed	NN
37894	447	23	of	of	IN
37894	447	24	surface	surface	NN
37894	447	25	winds	wind	NNS
37894	447	26	.	.	.
37894	448	1	Care	care	NN
37894	448	2	should	should	MD
37894	448	3	be	be	VB
37894	448	4	taken	take	VBN
37894	448	5	to	to	TO
37894	448	6	specify	specify	VB
37894	448	7	whether	whether	IN
37894	448	8	the	the	DT
37894	448	9	telescope	telescope	NN
37894	448	10	used	use	VBD
37894	448	11	has	have	VBZ
37894	448	12	an	an	DT
37894	448	13	erect	erect	NN
37894	448	14	or	or	CC
37894	448	15	inverted	invert	VBN
37894	448	16	image	image	NN
37894	448	17	.	.	.
37894	449	1	The	the	DT
37894	449	2	entry	entry	NN
37894	449	3	under	under	IN
37894	449	4	"	"	``
37894	449	5	Remarks	Remarks	NNPS
37894	449	6	"	"	''
37894	449	7	in	in	IN
37894	449	8	the	the	DT
37894	449	9	heading	heading	NN
37894	449	10	should	should	MD
37894	449	11	describe	describe	VB
37894	449	12	the	the	DT
37894	449	13	location	location	NN
37894	449	14	of	of	IN
37894	449	15	the	the	DT
37894	449	16	observation	observation	NN
37894	449	17	station	station	NN
37894	449	18	with	with	IN
37894	449	19	respect	respect	NN
37894	449	20	to	to	IN
37894	449	21	watercourses	watercourse	NNS
37894	449	22	,	,	,
37894	449	23	habitations	habitation	NNS
37894	449	24	,	,	,
37894	449	25	and	and	CC
37894	449	26	prominent	prominent	JJ
37894	449	27	terrain	terrain	NN
37894	449	28	features	feature	NNS
37894	449	29	.	.	.
37894	450	1	The	the	DT
37894	450	2	starting	starting	NN
37894	450	3	time	time	NN
37894	450	4	is	be	VBZ
37894	450	5	noted	note	VBN
37894	450	6	at	at	IN
37894	450	7	the	the	DT
37894	450	8	top	top	NN
37894	450	9	of	of	IN
37894	450	10	the	the	DT
37894	450	11	"	"	``
37894	450	12	Time	Time	NNP
37894	450	13	"	"	''
37894	450	14	column	column	NN
37894	450	15	,	,	,
37894	450	16	and	and	CC
37894	450	17	the	the	DT
37894	450	18	observer	observer	NN
37894	450	19	begins	begin	VBZ
37894	450	20	the	the	DT
37894	450	21	watch	watch	NN
37894	450	22	for	for	IN
37894	450	23	birds	bird	NNS
37894	450	24	.	.	.
37894	451	1	He	-PRON-	PRP
37894	451	2	must	must	MD
37894	451	3	keep	keep	VB
37894	451	4	the	the	DT
37894	451	5	disc	disc	NN
37894	451	6	of	of	IN
37894	451	7	the	the	DT
37894	451	8	moon	moon	NN
37894	451	9	under	under	IN
37894	451	10	unrelenting	unrelenting	JJ
37894	451	11	scrutiny	scrutiny	NN
37894	451	12	all	all	PDT
37894	451	13	the	the	DT
37894	451	14	while	while	IN
37894	451	15	he	-PRON-	PRP
37894	451	16	is	be	VBZ
37894	451	17	at	at	IN
37894	451	18	the	the	DT
37894	451	19	telescope	telescope	NN
37894	451	20	.	.	.
37894	452	1	When	when	WRB
37894	452	2	interruptions	interruption	NNS
37894	452	3	do	do	VBP
37894	452	4	occur	occur	VB
37894	452	5	as	as	IN
37894	452	6	a	a	DT
37894	452	7	result	result	NN
37894	452	8	of	of	IN
37894	452	9	changing	change	VBG
37894	452	10	positions	position	NNS
37894	452	11	with	with	IN
37894	452	12	the	the	DT
37894	452	13	recorder	recorder	NN
37894	452	14	,	,	,
37894	452	15	re	re	NNS
37894	452	16	-	-	NNS
37894	452	17	adjustments	adjustment	NNS
37894	452	18	of	of	IN
37894	452	19	the	the	DT
37894	452	20	telescope	telescope	NN
37894	452	21	,	,	,
37894	452	22	or	or	CC
37894	452	23	the	the	DT
37894	452	24	disappearance	disappearance	NN
37894	452	25	of	of	IN
37894	452	26	the	the	DT
37894	452	27	moon	moon	NN
37894	452	28	behind	behind	IN
37894	452	29	clouds	cloud	NNS
37894	452	30	,	,	,
37894	452	31	the	the	DT
37894	452	32	exact	exact	JJ
37894	452	33	duration	duration	NN
37894	452	34	of	of	IN
37894	452	35	the	the	DT
37894	452	36	"	"	``
37894	452	37	time	time	NN
37894	452	38	out	out	RP
37894	452	39	"	"	''
37894	452	40	must	must	MD
37894	452	41	be	be	VB
37894	452	42	set	set	VBN
37894	452	43	down	down	RP
37894	452	44	.	.	.
37894	453	1	[	[	-LRB-
37894	453	2	Illustration	illustration	NN
37894	453	3	:	:	:
37894	453	4	FIG	FIG	NNP
37894	453	5	.	.	.
37894	454	1	13	13	CD
37894	454	2	.	.	.
37894	455	1	The	the	DT
37894	455	2	identification	identification	NN
37894	455	3	of	of	IN
37894	455	4	coördinates	coördinate	NNS
37894	455	5	.	.	.
37894	456	1	These	these	DT
37894	456	2	diagrams	diagram	NNS
37894	456	3	illustrate	illustrate	VBP
37894	456	4	how	how	WRB
37894	456	5	the	the	DT
37894	456	6	moon	moon	NN
37894	456	7	may	may	MD
37894	456	8	be	be	VB
37894	456	9	envisioned	envision	VBN
37894	456	10	as	as	IN
37894	456	11	a	a	DT
37894	456	12	clockface	clockface	NN
37894	456	13	,	,	,
37894	456	14	constantly	constantly	RB
37894	456	15	oriented	orient	VBN
37894	456	16	with	with	IN
37894	456	17	six	six	CD
37894	456	18	o'clock	o'clock	NN
37894	456	19	nearest	near	JJS
37894	456	20	the	the	DT
37894	456	21	horizon	horizon	NN
37894	456	22	and	and	CC
37894	456	23	completely	completely	RB
37894	456	24	independent	independent	JJ
37894	456	25	of	of	IN
37894	456	26	the	the	DT
37894	456	27	rotation	rotation	NN
37894	456	28	of	of	IN
37894	456	29	the	the	DT
37894	456	30	moon	moon	NN
37894	456	31	's	's	POS
37894	456	32	topographic	topographic	JJ
37894	456	33	features	feature	NNS
37894	456	34	.	.	.
37894	456	35	]	]	-RRB-
37894	457	1	[	[	-LRB-
37894	457	2	Illustration	illustration	NN
37894	457	3	:	:	:
37894	457	4	FIG	FIG	NNP
37894	457	5	.	.	.
37894	458	1	14	14	CD
37894	458	2	.	.	.
37894	459	1	The	the	DT
37894	459	2	apparent	apparent	JJ
37894	459	3	pathways	pathway	NNS
37894	459	4	of	of	IN
37894	459	5	the	the	DT
37894	459	6	birds	bird	NNS
37894	459	7	seen	see	VBN
37894	459	8	in	in	IN
37894	459	9	one	one	CD
37894	459	10	hour	hour	NN
37894	459	11	.	.	.
37894	460	1	The	the	DT
37894	460	2	observations	observation	NNS
37894	460	3	are	be	VBP
37894	460	4	those	those	DT
37894	460	5	recorded	record	VBN
37894	460	6	in	in	IN
37894	460	7	the	the	DT
37894	460	8	11:00	11:00	CD
37894	460	9	-	-	SYM
37894	460	10	12:00	12:00	CD
37894	460	11	P.	P.	NNP
37894	460	12	M.	M.	NNP
37894	460	13	interval	interval	NN
37894	460	14	on	on	IN
37894	460	15	April	April	NNP
37894	460	16	24	24	CD
37894	460	17	-	-	SYM
37894	460	18	25	25	CD
37894	460	19	,	,	,
37894	460	20	1948	1948	CD
37894	460	21	,	,	,
37894	460	22	at	at	IN
37894	460	23	Progreso	Progreso	NNP
37894	460	24	,	,	,
37894	460	25	Yucatán	Yucatán	NNP
37894	460	26	(	(	-LRB-
37894	460	27	see	see	VB
37894	460	28	Table	table	NN
37894	460	29	1	1	CD
37894	460	30	)	)	-RRB-
37894	460	31	.	.	.
37894	460	32	]	]	-RRB-
37894	461	1	Whenever	whenever	WRB
37894	461	2	a	a	DT
37894	461	3	bird	bird	NN
37894	461	4	is	be	VBZ
37894	461	5	seen	see	VBN
37894	461	6	,	,	,
37894	461	7	the	the	DT
37894	461	8	exact	exact	JJ
37894	461	9	time	time	NN
37894	461	10	must	must	MD
37894	461	11	be	be	VB
37894	461	12	noted	note	VBN
37894	461	13	,	,	,
37894	461	14	together	together	RB
37894	461	15	with	with	IN
37894	461	16	its	-PRON-	PRP$
37894	461	17	apparent	apparent	JJ
37894	461	18	pathway	pathway	NN
37894	461	19	on	on	IN
37894	461	20	the	the	DT
37894	461	21	moon	moon	NN
37894	461	22	.	.	.
37894	462	1	These	these	DT
37894	462	2	apparent	apparent	JJ
37894	462	3	pathways	pathway	NNS
37894	462	4	can	can	MD
37894	462	5	be	be	VB
37894	462	6	designated	designate	VBN
37894	462	7	in	in	IN
37894	462	8	a	a	DT
37894	462	9	simple	simple	JJ
37894	462	10	manner	manner	NN
37894	462	11	.	.	.
37894	463	1	The	the	DT
37894	463	2	observer	observer	NN
37894	463	3	envisions	envision	VBZ
37894	463	4	the	the	DT
37894	463	5	disc	disc	NN
37894	463	6	of	of	IN
37894	463	7	the	the	DT
37894	463	8	moon	moon	NN
37894	463	9	as	as	IN
37894	463	10	the	the	DT
37894	463	11	face	face	NN
37894	463	12	of	of	IN
37894	463	13	a	a	DT
37894	463	14	clock	clock	NN
37894	463	15	,	,	,
37894	463	16	with	with	IN
37894	463	17	twelve	twelve	CD
37894	463	18	equally	equally	RB
37894	463	19	spaced	space	VBN
37894	463	20	points	point	NNS
37894	463	21	on	on	IN
37894	463	22	the	the	DT
37894	463	23	circumference	circumference	NN
37894	463	24	marking	mark	VBG
37894	463	25	the	the	DT
37894	463	26	hours	hour	NNS
37894	463	27	(	(	-LRB-
37894	463	28	Figure	Figure	NNP
37894	463	29	13	13	CD
37894	463	30	)	)	-RRB-
37894	463	31	.	.	.
37894	464	1	He	-PRON-	PRP
37894	464	2	calls	call	VBZ
37894	464	3	the	the	DT
37894	464	4	bottommost	bottommost	JJS
37894	464	5	point	point	NN
37894	464	6	6	6	CD
37894	464	7	o'clock	o'clock	NN
37894	464	8	and	and	CC
37894	464	9	the	the	DT
37894	464	10	topmost	topmost	JJS
37894	464	11	,	,	,
37894	464	12	12	12	CD
37894	464	13	.	.	.
37894	465	1	The	the	DT
37894	465	2	intervals	interval	NNS
37894	465	3	in	in	RP
37894	465	4	between	between	IN
37894	465	5	are	be	VBP
37894	465	6	numbered	number	VBN
37894	465	7	accordingly	accordingly	RB
37894	465	8	.	.	.
37894	466	1	As	as	IN
37894	466	2	this	this	DT
37894	466	3	lunar	lunar	JJ
37894	466	4	clockface	clockface	NN
37894	466	5	moves	move	VBZ
37894	466	6	across	across	IN
37894	466	7	the	the	DT
37894	466	8	sky	sky	NN
37894	466	9	,	,	,
37894	466	10	it	-PRON-	PRP
37894	466	11	remains	remain	VBZ
37894	466	12	oriented	orient	VBN
37894	466	13	in	in	IN
37894	466	14	such	such	PDT
37894	466	15	a	a	DT
37894	466	16	way	way	NN
37894	466	17	that	that	IN
37894	466	18	6	6	CD
37894	466	19	o'clock	o'clock	NN
37894	466	20	continues	continue	VBZ
37894	466	21	to	to	TO
37894	466	22	be	be	VB
37894	466	23	the	the	DT
37894	466	24	point	point	NN
37894	466	25	nearest	nearest	IN
37894	466	26	the	the	DT
37894	466	27	horizon	horizon	NN
37894	466	28	,	,	,
37894	466	29	unless	unless	IN
37894	466	30	the	the	DT
37894	466	31	moon	moon	NN
37894	466	32	reaches	reach	VBZ
37894	466	33	a	a	DT
37894	466	34	position	position	NN
37894	466	35	directly	directly	RB
37894	466	36	overhead	overhead	RB
37894	466	37	.	.	.
37894	467	1	Then	then	RB
37894	467	2	,	,	,
37894	467	3	all	all	DT
37894	467	4	points	point	NNS
37894	467	5	along	along	IN
37894	467	6	the	the	DT
37894	467	7	circumference	circumference	NN
37894	467	8	are	be	VBP
37894	467	9	equidistant	equidistant	JJ
37894	467	10	from	from	IN
37894	467	11	the	the	DT
37894	467	12	horizon	horizon	NN
37894	467	13	,	,	,
37894	467	14	and	and	CC
37894	467	15	the	the	DT
37894	467	16	previous	previous	JJ
37894	467	17	definition	definition	NN
37894	467	18	of	of	IN
37894	467	19	clock	clock	NN
37894	467	20	values	value	NNS
37894	467	21	ceases	cease	VBZ
37894	467	22	to	to	TO
37894	467	23	have	have	VB
37894	467	24	meaning	meaning	NN
37894	467	25	.	.	.
37894	468	1	This	this	DT
37894	468	2	situation	situation	NN
37894	468	3	is	be	VBZ
37894	468	4	rarely	rarely	RB
37894	468	5	encountered	encounter	VBN
37894	468	6	in	in	IN
37894	468	7	the	the	DT
37894	468	8	northern	northern	JJ
37894	468	9	hemisphere	hemisphere	NN
37894	468	10	during	during	IN
37894	468	11	the	the	DT
37894	468	12	seasons	season	NNS
37894	468	13	of	of	IN
37894	468	14	migration	migration	NN
37894	468	15	,	,	,
37894	468	16	except	except	IN
37894	468	17	in	in	IN
37894	468	18	extreme	extreme	JJ
37894	468	19	southern	southern	JJ
37894	468	20	latitudes	latitude	NNS
37894	468	21	.	.	.
37894	469	1	It	-PRON-	PRP
37894	469	2	is	be	VBZ
37894	469	3	one	one	NN
37894	469	4	that	that	WDT
37894	469	5	has	have	VBZ
37894	469	6	never	never	RB
37894	469	7	actually	actually	RB
37894	469	8	been	be	VBN
37894	469	9	dealt	deal	VBN
37894	469	10	with	with	IN
37894	469	11	in	in	IN
37894	469	12	the	the	DT
37894	469	13	course	course	NN
37894	469	14	of	of	IN
37894	469	15	this	this	DT
37894	469	16	study	study	NN
37894	469	17	.	.	.
37894	470	1	But	but	CC
37894	470	2	,	,	,
37894	470	3	should	should	MD
37894	470	4	the	the	DT
37894	470	5	problem	problem	NN
37894	470	6	arise	arise	VB
37894	470	7	,	,	,
37894	470	8	it	-PRON-	PRP
37894	470	9	would	would	MD
37894	470	10	probably	probably	RB
37894	470	11	be	be	VB
37894	470	12	feasible	feasible	JJ
37894	470	13	to	to	TO
37894	470	14	orient	orient	VB
37894	470	15	the	the	DT
37894	470	16	clock	clock	NN
37894	470	17	during	during	IN
37894	470	18	this	this	DT
37894	470	19	interval	interval	NN
37894	470	20	with	with	IN
37894	470	21	respect	respect	NN
37894	470	22	to	to	IN
37894	470	23	the	the	DT
37894	470	24	points	point	NNS
37894	470	25	of	of	IN
37894	470	26	the	the	DT
37894	470	27	compass	compass	NN
37894	470	28	,	,	,
37894	470	29	calling	call	VBG
37894	470	30	the	the	DT
37894	470	31	south	south	JJ
37894	470	32	point	point	NN
37894	470	33	6	6	CD
37894	470	34	o'clock	o'clock	NN
37894	470	35	.	.	.
37894	471	1	When	when	WRB
37894	471	2	a	a	DT
37894	471	3	bird	bird	NN
37894	471	4	appears	appear	VBZ
37894	471	5	in	in	IN
37894	471	6	front	front	NN
37894	471	7	of	of	IN
37894	471	8	the	the	DT
37894	471	9	moon	moon	NN
37894	471	10	,	,	,
37894	471	11	the	the	DT
37894	471	12	observer	observer	NN
37894	471	13	identifies	identify	VBZ
37894	471	14	its	-PRON-	PRP$
37894	471	15	entry	entry	NN
37894	471	16	and	and	CC
37894	471	17	departure	departure	NN
37894	471	18	points	point	NNS
37894	471	19	along	along	IN
37894	471	20	the	the	DT
37894	471	21	rim	rim	NN
37894	471	22	of	of	IN
37894	471	23	the	the	DT
37894	471	24	moon	moon	NN
37894	471	25	with	with	IN
37894	471	26	respect	respect	NN
37894	471	27	to	to	IN
37894	471	28	the	the	DT
37894	471	29	nearest	near	JJS
37894	471	30	half	half	JJ
37894	471	31	hour	hour	NN
37894	471	32	on	on	IN
37894	471	33	the	the	DT
37894	471	34	imaginary	imaginary	JJ
37894	471	35	clock	clock	NN
37894	471	36	and	and	CC
37894	471	37	informs	inform	VBZ
37894	471	38	the	the	DT
37894	471	39	recorder	recorder	NN
37894	471	40	.	.	.
37894	472	1	In	in	IN
37894	472	2	the	the	DT
37894	472	3	case	case	NN
37894	472	4	of	of	IN
37894	472	5	the	the	DT
37894	472	6	bird	bird	NN
37894	472	7	shown	show	VBN
37894	472	8	in	in	IN
37894	472	9	Figure	Figure	NNP
37894	472	10	13	13	CD
37894	472	11	,	,	,
37894	472	12	he	-PRON-	PRP
37894	472	13	would	would	MD
37894	472	14	simply	simply	RB
37894	472	15	call	call	VB
37894	472	16	out	out	RP
37894	472	17	,	,	,
37894	472	18	"	"	''
37894	472	19	5	5	CD
37894	472	20	to	to	IN
37894	472	21	10:30	10:30	CD
37894	472	22	.	.	.
37894	472	23	"	"	''
37894	473	1	The	the	DT
37894	473	2	recorder	recorder	NN
37894	473	3	would	would	MD
37894	473	4	enter	enter	VB
37894	473	5	"	"	``
37894	473	6	5	5	CD
37894	473	7	"	"	''
37894	473	8	in	in	IN
37894	473	9	the	the	DT
37894	473	10	"	"	``
37894	473	11	In	in	IN
37894	473	12	"	"	''
37894	473	13	column	column	NN
37894	473	14	on	on	IN
37894	473	15	the	the	DT
37894	473	16	data	datum	NNS
37894	473	17	sheet	sheet	NN
37894	473	18	(	(	-LRB-
37894	473	19	see	see	VB
37894	473	20	Figure	Figure	NNP
37894	473	21	12	12	CD
37894	473	22	)	)	-RRB-
37894	473	23	and	and	CC
37894	473	24	10:30	10:30	CD
37894	473	25	in	in	IN
37894	473	26	the	the	DT
37894	473	27	"	"	``
37894	473	28	Out	Out	NNP
37894	473	29	"	"	''
37894	473	30	column	column	NN
37894	473	31	.	.	.
37894	474	1	Other	other	JJ
37894	474	2	comment	comment	NN
37894	474	3	,	,	,
37894	474	4	offered	offer	VBN
37894	474	5	by	by	IN
37894	474	6	the	the	DT
37894	474	7	observer	observer	NN
37894	474	8	and	and	CC
37894	474	9	added	add	VBD
37894	474	10	in	in	IN
37894	474	11	the	the	DT
37894	474	12	remarks	remark	NNS
37894	474	13	column	column	NN
37894	474	14	,	,	,
37894	474	15	may	may	MD
37894	474	16	concern	concern	VB
37894	474	17	the	the	DT
37894	474	18	size	size	NN
37894	474	19	of	of	IN
37894	474	20	the	the	DT
37894	474	21	image	image	NN
37894	474	22	,	,	,
37894	474	23	its	-PRON-	PRP$
37894	474	24	speed	speed	NN
37894	474	25	,	,	,
37894	474	26	distinctness	distinctness	NN
37894	474	27	,	,	,
37894	474	28	and	and	CC
37894	474	29	possible	possible	JJ
37894	474	30	identity	identity	NN
37894	474	31	.	.	.
37894	475	1	Any	any	DT
37894	475	2	deviation	deviation	NN
37894	475	3	of	of	IN
37894	475	4	the	the	DT
37894	475	5	pathway	pathway	NN
37894	475	6	from	from	IN
37894	475	7	a	a	DT
37894	475	8	straight	straight	JJ
37894	475	9	line	line	NN
37894	475	10	should	should	MD
37894	475	11	be	be	VB
37894	475	12	described	describe	VBN
37894	475	13	.	.	.
37894	476	1	This	this	DT
37894	476	2	information	information	NN
37894	476	3	has	have	VBZ
37894	476	4	no	no	DT
37894	476	5	bearing	bearing	NN
37894	476	6	on	on	IN
37894	476	7	subsequent	subsequent	JJ
37894	476	8	mathematical	mathematical	JJ
37894	476	9	procedure	procedure	NN
37894	476	10	,	,	,
37894	476	11	except	except	IN
37894	476	12	as	as	IN
37894	476	13	it	-PRON-	PRP
37894	476	14	helps	help	VBZ
37894	476	15	to	to	TO
37894	476	16	eliminate	eliminate	VB
37894	476	17	objects	object	NNS
37894	476	18	other	other	JJ
37894	476	19	than	than	IN
37894	476	20	birds	bird	NNS
37894	476	21	from	from	IN
37894	476	22	computation	computation	NN
37894	476	23	.	.	.
37894	477	1	The	the	DT
37894	477	2	first	first	JJ
37894	477	3	step	step	NN
37894	477	4	in	in	IN
37894	477	5	processing	process	VBG
37894	477	6	a	a	DT
37894	477	7	set	set	NN
37894	477	8	of	of	IN
37894	477	9	data	datum	NNS
37894	477	10	so	so	RB
37894	477	11	obtained	obtain	VBN
37894	477	12	is	be	VBZ
37894	477	13	to	to	IN
37894	477	14	blue	blue	JJ
37894	477	15	-	-	HYPH
37894	477	16	pencil	pencil	NN
37894	477	17	all	all	DT
37894	477	18	entries	entry	NNS
37894	477	19	that	that	WDT
37894	477	20	,	,	,
37894	477	21	judged	judge	VBN
37894	477	22	by	by	IN
37894	477	23	the	the	DT
37894	477	24	accompanying	accompany	VBG
37894	477	25	remarks	remark	NNS
37894	477	26	,	,	,
37894	477	27	relate	relate	VBP
37894	477	28	to	to	IN
37894	477	29	extraneous	extraneous	JJ
37894	477	30	objects	object	NNS
37894	477	31	such	such	JJ
37894	477	32	as	as	IN
37894	477	33	insects	insect	NNS
37894	477	34	or	or	CC
37894	477	35	bats	bat	NNS
37894	477	36	.	.	.
37894	478	1	Next	next	JJ
37894	478	2	,	,	,
37894	478	3	horizontal	horizontal	JJ
37894	478	4	lines	line	NNS
37894	478	5	are	be	VBP
37894	478	6	drawn	draw	VBN
37894	478	7	across	across	IN
37894	478	8	the	the	DT
37894	478	9	data	data	NN
37894	478	10	sheets	sheet	NNS
37894	478	11	marking	mark	VBG
37894	478	12	the	the	DT
37894	478	13	beginning	beginning	NN
37894	478	14	and	and	CC
37894	478	15	the	the	DT
37894	478	16	end	end	NN
37894	478	17	of	of	IN
37894	478	18	each	each	DT
37894	478	19	even	even	RB
37894	478	20	hour	hour	NN
37894	478	21	of	of	IN
37894	478	22	observation	observation	NN
37894	478	23	,	,	,
37894	478	24	as	as	IN
37894	478	25	8	8	CD
37894	478	26	P.	P.	NNP
37894	478	27	M.-9	M.-9	NNP
37894	478	28	P.	P.	NNP
37894	478	29	M.	M.	NNP
37894	478	30	,	,	,
37894	478	31	9	9	CD
37894	478	32	P.	P.	NNP
37894	478	33	M.-10	M.-10	NNP
37894	478	34	P.	P.	NNP
37894	478	35	M.	M.	NNP
37894	478	36	,	,	,
37894	478	37	etc	etc	FW
37894	478	38	.	.	.
37894	479	1	The	the	DT
37894	479	2	coördinates	coördinate	NNS
37894	479	3	of	of	IN
37894	479	4	the	the	DT
37894	479	5	birds	bird	NNS
37894	479	6	in	in	IN
37894	479	7	each	each	DT
37894	479	8	one	one	CD
37894	479	9	-	-	HYPH
37894	479	10	hour	hour	NN
37894	479	11	interval	interval	NN
37894	479	12	may	may	MD
37894	479	13	now	now	RB
37894	479	14	be	be	VB
37894	479	15	plotted	plot	VBN
37894	479	16	on	on	IN
37894	479	17	separate	separate	JJ
37894	479	18	diagrammatic	diagrammatic	JJ
37894	479	19	clockfaces	clockface	NNS
37894	479	20	,	,	,
37894	479	21	just	just	RB
37894	479	22	as	as	IN
37894	479	23	they	-PRON-	PRP
37894	479	24	appeared	appear	VBD
37894	479	25	on	on	IN
37894	479	26	the	the	DT
37894	479	27	moon	moon	NN
37894	479	28	.	.	.
37894	480	1	Tick	Tick	NNP
37894	480	2	marks	mark	NNS
37894	480	3	are	be	VBP
37894	480	4	added	add	VBN
37894	480	5	to	to	IN
37894	480	6	each	each	DT
37894	480	7	line	line	NN
37894	480	8	to	to	TO
37894	480	9	indicate	indicate	VB
37894	480	10	the	the	DT
37894	480	11	number	number	NN
37894	480	12	of	of	IN
37894	480	13	birds	bird	NNS
37894	480	14	occurring	occur	VBG
37894	480	15	along	along	IN
37894	480	16	the	the	DT
37894	480	17	same	same	JJ
37894	480	18	coördinate	coördinate	NN
37894	480	19	.	.	.
37894	481	1	The	the	DT
37894	481	2	slant	slant	NN
37894	481	3	of	of	IN
37894	481	4	the	the	DT
37894	481	5	tick	tick	NN
37894	481	6	marks	mark	NNS
37894	481	7	distinguishes	distinguish	VBZ
37894	481	8	the	the	DT
37894	481	9	points	point	NNS
37894	481	10	of	of	IN
37894	481	11	departure	departure	NN
37894	481	12	from	from	IN
37894	481	13	the	the	DT
37894	481	14	points	point	NNS
37894	481	15	of	of	IN
37894	481	16	entry	entry	NN
37894	481	17	.	.	.
37894	482	1	Figure	figure	NN
37894	482	2	14	14	CD
37894	482	3	shows	show	VBZ
37894	482	4	the	the	DT
37894	482	5	plot	plot	NN
37894	482	6	for	for	IN
37894	482	7	the	the	DT
37894	482	8	11	11	CD
37894	482	9	P.	P.	NNP
37894	482	10	M.-12	M.-12	NNP
37894	482	11	P.	P.	NNP
37894	482	12	M.	M.	NNP
37894	482	13	observations	observation	NNS
37894	482	14	reproduced	reproduce	VBN
37894	482	15	in	in	IN
37894	482	16	Table	table	NN
37894	482	17	1	1	CD
37894	482	18	.	.	.
37894	483	1	The	the	DT
37894	483	2	standard	standard	JJ
37894	483	3	form	form	NN
37894	483	4	,	,	,
37894	483	5	illustrated	illustrate	VBN
37894	483	6	in	in	IN
37894	483	7	Figure	Figure	NNP
37894	483	8	15	15	CD
37894	483	9	,	,	,
37894	483	10	includes	include	VBZ
37894	483	11	four	four	CD
37894	483	12	such	such	JJ
37894	483	13	diagrams	diagram	NNS
37894	483	14	.	.	.
37894	484	1	Applying	apply	VBG
37894	484	2	the	the	DT
37894	484	3	self	self	NN
37894	484	4	-	-	HYPH
37894	484	5	evident	evident	JJ
37894	484	6	principle	principle	NN
37894	484	7	that	that	IN
37894	484	8	all	all	DT
37894	484	9	pathways	pathway	NNS
37894	484	10	with	with	IN
37894	484	11	the	the	DT
37894	484	12	same	same	JJ
37894	484	13	slant	slant	NN
37894	484	14	represent	represent	VBP
37894	484	15	the	the	DT
37894	484	16	same	same	JJ
37894	484	17	direction	direction	NN
37894	484	18	,	,	,
37894	484	19	we	-PRON-	PRP
37894	484	20	may	may	MD
37894	484	21	further	further	RB
37894	484	22	consolidate	consolidate	VB
37894	484	23	the	the	DT
37894	484	24	plots	plot	NNS
37894	484	25	by	by	IN
37894	484	26	shifting	shift	VBG
37894	484	27	all	all	DT
37894	484	28	coördinates	coördinate	NNS
37894	484	29	to	to	IN
37894	484	30	the	the	DT
37894	484	31	corresponding	correspond	VBG
37894	484	32	lines	line	NNS
37894	484	33	passing	pass	VBG
37894	484	34	through	through	IN
37894	484	35	the	the	DT
37894	484	36	center	center	NN
37894	484	37	of	of	IN
37894	484	38	the	the	DT
37894	484	39	circle	circle	NN
37894	484	40	,	,	,
37894	484	41	as	as	IN
37894	484	42	in	in	IN
37894	484	43	Figure	Figure	NNP
37894	484	44	15	15	CD
37894	484	45	.	.	.
37894	485	1	To	to	TO
37894	485	2	illustrate	illustrate	VB
37894	485	3	,	,	,
37894	485	4	the	the	DT
37894	485	5	6	6	CD
37894	485	6	to	to	TO
37894	485	7	8	8	CD
37894	485	8	,	,	,
37894	485	9	5	5	CD
37894	485	10	to	to	IN
37894	485	11	9	9	CD
37894	485	12	,	,	,
37894	485	13	3	3	CD
37894	485	14	to	to	IN
37894	485	15	11	11	CD
37894	485	16	,	,	,
37894	485	17	and	and	CC
37894	485	18	2	2	CD
37894	485	19	to	to	TO
37894	485	20	12	12	CD
37894	485	21	pathways	pathway	NNS
37894	485	22	all	all	DT
37894	485	23	combine	combine	VBP
37894	485	24	on	on	IN
37894	485	25	the	the	DT
37894	485	26	4	4	CD
37894	485	27	to	to	TO
37894	485	28	10	10	CD
37894	485	29	line	line	NN
37894	485	30	.	.	.
37894	486	1	Experienced	experienced	JJ
37894	486	2	computers	computer	NNS
37894	486	3	eliminate	eliminate	VBP
37894	486	4	a	a	DT
37894	486	5	step	step	NN
37894	486	6	by	by	IN
37894	486	7	directly	directly	RB
37894	486	8	plotting	plot	VBG
37894	486	9	the	the	DT
37894	486	10	pathways	pathway	NNS
37894	486	11	through	through	IN
37894	486	12	center	center	NN
37894	486	13	,	,	,
37894	486	14	using	use	VBG
37894	486	15	a	a	DT
37894	486	16	transparent	transparent	JJ
37894	486	17	plastic	plastic	NN
37894	486	18	straightedge	straightedge	NN
37894	486	19	ruled	rule	VBD
37894	486	20	off	off	RP
37894	486	21	in	in	IN
37894	486	22	parallel	parallel	JJ
37894	486	23	lines	line	NNS
37894	486	24	.	.	.
37894	487	1	[	[	-LRB-
37894	487	2	Illustration	illustration	NN
37894	487	3	:	:	:
37894	487	4	FIG	FIG	NNP
37894	487	5	.	.	.
37894	488	1	15	15	CD
37894	488	2	.	.	.
37894	489	1	Standard	standard	JJ
37894	489	2	form	form	NN
37894	489	3	for	for	IN
37894	489	4	plotting	plot	VBG
37894	489	5	the	the	DT
37894	489	6	apparent	apparent	JJ
37894	489	7	paths	path	NNS
37894	489	8	of	of	IN
37894	489	9	flight	flight	NN
37894	489	10	.	.	.
37894	490	1	On	on	IN
37894	490	2	these	these	DT
37894	490	3	diagrams	diagram	NNS
37894	490	4	the	the	DT
37894	490	5	original	original	JJ
37894	490	6	coördinates	coördinate	NNS
37894	490	7	,	,	,
37894	490	8	exemplified	exemplify	VBN
37894	490	9	by	by	IN
37894	490	10	Figure	Figure	NNP
37894	490	11	14	14	CD
37894	490	12	,	,	,
37894	490	13	have	have	VBP
37894	490	14	been	be	VBN
37894	490	15	moved	move	VBN
37894	490	16	to	to	IN
37894	490	17	center	center	NN
37894	490	18	.	.	.
37894	491	1	In	in	IN
37894	491	2	practice	practice	NN
37894	491	3	the	the	DT
37894	491	4	sector	sector	NN
37894	491	5	boundaries	boundary	NNS
37894	491	6	are	be	VBP
37894	491	7	drawn	draw	VBN
37894	491	8	over	over	IN
37894	491	9	the	the	DT
37894	491	10	circles	circle	NNS
37894	491	11	in	in	IN
37894	491	12	red	red	JJ
37894	491	13	pencil	pencil	NN
37894	491	14	,	,	,
37894	491	15	as	as	IN
37894	491	16	shown	show	VBN
37894	491	17	by	by	IN
37894	491	18	the	the	DT
37894	491	19	white	white	JJ
37894	491	20	lines	line	NNS
37894	491	21	in	in	IN
37894	491	22	Figure	Figure	NNP
37894	491	23	19	19	CD
37894	491	24	,	,	,
37894	491	25	making	make	VBG
37894	491	26	it	-PRON-	PRP
37894	491	27	possible	possible	JJ
37894	491	28	to	to	TO
37894	491	29	count	count	VB
37894	491	30	the	the	DT
37894	491	31	number	number	NN
37894	491	32	of	of	IN
37894	491	33	birds	bird	NNS
37894	491	34	falling	fall	VBG
37894	491	35	within	within	IN
37894	491	36	each	each	DT
37894	491	37	zone	zone	NN
37894	491	38	.	.	.
37894	492	1	These	these	DT
37894	492	2	numbers	number	NNS
37894	492	3	are	be	VBP
37894	492	4	then	then	RB
37894	492	5	tallied	tally	VBN
37894	492	6	in	in	IN
37894	492	7	the	the	DT
37894	492	8	columns	column	NNS
37894	492	9	at	at	IN
37894	492	10	the	the	DT
37894	492	11	lower	low	JJR
37894	492	12	right	right	NN
37894	492	13	of	of	IN
37894	492	14	each	each	DT
37894	492	15	hourly	hourly	JJ
37894	492	16	diagram	diagram	NN
37894	492	17	.	.	.
37894	492	18	]	]	-RRB-
37894	493	1	TABLE	TABLE	NNP
37894	493	2	1.--Continuation	1.--continuation	CD
37894	493	3	of	of	IN
37894	493	4	Data	Data	NNP
37894	493	5	in	in	IN
37894	493	6	Figure	Figure	NNP
37894	493	7	12	12	CD
37894	493	8	,	,	,
37894	493	9	Showing	show	VBG
37894	493	10	Time	Time	NNP
37894	493	11	and	and	CC
37894	493	12	Readings	Readings	NNP
37894	493	13	of	of	IN
37894	493	14	Observations	Observations	NNPS
37894	493	15	on	on	IN
37894	493	16	24	24	CD
37894	493	17	-	-	SYM
37894	493	18	25	25	CD
37894	493	19	April	April	NNP
37894	493	20	1948	1948	CD
37894	493	21	,	,	,
37894	493	22	Progreso	Progreso	NNP
37894	493	23	,	,	,
37894	493	24	Yucatán	Yucatán	NNP
37894	493	25	=	=	SYM
37894	493	26	=	=	SYM
37894	493	27	=	=	SYM
37894	493	28	=	=	SYM
37894	493	29	=	=	SYM
37894	493	30	=	=	SYM
37894	493	31	=	=	SYM
37894	493	32	=	=	SYM
37894	493	33	=	=	SYM
37894	493	34	=	=	SYM
37894	493	35	=	=	SYM
37894	493	36	=	=	SYM
37894	493	37	=	=	SYM
37894	493	38	=	=	SYM
37894	493	39	=	=	SYM
37894	493	40	=	=	SYM
37894	493	41	=	=	SYM
37894	493	42	=	=	SYM
37894	493	43	=	=	SYM
37894	493	44	=	=	SYM
37894	493	45	=	=	SYM
37894	493	46	=	=	SYM
37894	493	47	=	=	SYM
37894	493	48	=	=	SYM
37894	493	49	=	=	SYM
37894	493	50	=	=	SYM
37894	493	51	=	=	SYM
37894	493	52	=	=	SYM
37894	493	53	=	=	NFP
37894	493	54	=	=	SYM
37894	493	55	+	+	SYM
37894	493	56	=	=	SYM
37894	493	57	=	=	SYM
37894	493	58	=	=	SYM
37894	493	59	=	=	SYM
37894	493	60	=	=	SYM
37894	493	61	=	=	SYM
37894	493	62	=	=	SYM
37894	493	63	=	=	SYM
37894	493	64	=	=	SYM
37894	493	65	=	=	SYM
37894	493	66	=	=	SYM
37894	493	67	=	=	SYM
37894	493	68	=	=	SYM
37894	493	69	=	=	SYM
37894	493	70	=	=	SYM
37894	493	71	=	=	SYM
37894	493	72	=	=	SYM
37894	493	73	=	=	SYM
37894	493	74	=	=	SYM
37894	493	75	=	=	SYM
37894	493	76	=	=	SYM
37894	493	77	=	=	SYM
37894	493	78	=	=	SYM
37894	493	79	=	=	SYM
37894	493	80	=	=	SYM
37894	493	81	=	=	SYM
37894	493	82	=	=	SYM
37894	493	83	=	=	NFP
37894	493	84	=	=	NFP
37894	493	85	=	=	NFP
37894	493	86	Time	Time	NNP
37894	493	87	In	in	IN
37894	493	88	Out	Out	NNP
37894	493	89	|	|	NNP
37894	493	90	Time	time	NN
37894	493	91	In	in	IN
37894	493	92	Out	out	RB
37894	493	93	------------------------------+------------------------------	------------------------------+------------------------------	NFP
37894	493	94	10:37	10:37	CD
37894	493	95	-	-	SYM
37894	493	96	10:41	10:41	CD
37894	493	97	Time	time	NN
37894	493	98	out	out	RB
37894	493	99	|	|	CD
37894	493	100	11:15	11:15	CD
37894	493	101	8	8	CD
37894	493	102	9:30	9:30	CD
37894	493	103	10:45	10:45	CD
37894	493	104	5:30	5:30	CD
37894	493	105	10	10	CD
37894	493	106	|	|	CD
37894	493	107	11:16	11:16	CD
37894	493	108	4	4	CD
37894	493	109	11	11	CD
37894	493	110	6	6	CD
37894	493	111	9	9	CD
37894	493	112	|	|	CD
37894	493	113	5	5	CD
37894	493	114	9	9	CD
37894	493	115	5:30	5:30	CD
37894	493	116	10	10	CD
37894	493	117	|	|	CD
37894	493	118	11:17	11:17	CD
37894	493	119	5	5	CD
37894	493	120	11:30	11:30	CD
37894	493	121	10:46	10:46	CD
37894	493	122	6	6	CD
37894	493	123	8	8	CD
37894	493	124	|	|	CD
37894	493	125	11:18	11:18	CD
37894	493	126	5	5	CD
37894	493	127	12	12	CD
37894	493	128	3:30	3:30	CD
37894	493	129	11	11	CD
37894	493	130	|	|	CD
37894	493	131	6	6	CD
37894	493	132	11:30	11:30	CD
37894	493	133	5	5	CD
37894	493	134	12	12	CD
37894	493	135	|	|	CD
37894	493	136	11:19	11:19	CD
37894	493	137	5:30	5:30	CD
37894	493	138	11:30	11:30	CD
37894	493	139	10:47	10:47	CD
37894	493	140	3:15	3:15	CD
37894	493	141	1	1	CD
37894	493	142	|	|	CD
37894	493	143	11:20	11:20	CD
37894	493	144	6	6	CD
37894	493	145	10	10	CD
37894	493	146	6	6	CD
37894	493	147	8:30	8:30	CD
37894	493	148	|	|	CD
37894	493	149	3	3	CD
37894	493	150	12	12	CD
37894	493	151	5:45	5:45	CD
37894	493	152	11:45	11:45	CD
37894	493	153	|	|	CD
37894	493	154	5	5	CD
37894	493	155	12	12	CD
37894	493	156	5	5	CD
37894	493	157	10	10	CD
37894	493	158	|	|	CD
37894	493	159	11:21	11:21	CD
37894	493	160	5:45	5:45	CD
37894	493	161	11	11	CD
37894	493	162	10:48	10:48	CD
37894	493	163	6	6	CD
37894	493	164	9:45	9:45	CD
37894	493	165	|	|	CD
37894	493	166	5	5	CD
37894	493	167	11	11	CD
37894	493	168	10:50	10:50	CD
37894	493	169	5:30	5:30	CD
37894	493	170	11	11	CD
37894	493	171	|	|	CD
37894	493	172	11:23	11:23	CD
37894	493	173	5	5	CD
37894	493	174	12	12	CD
37894	493	175	10:51	10:51	CD
37894	493	176	4	4	CD
37894	493	177	11	11	CD
37894	493	178	|	|	CD
37894	493	179	11:25	11:25	CD
37894	493	180	5	5	CD
37894	493	181	10:30	10:30	CD
37894	493	182	10:52	10:52	CD
37894	493	183	4	4	CD
37894	493	184	2	2	CD
37894	493	185	|	|	CD
37894	493	186	6	6	CD
37894	493	187	11	11	CD
37894	493	188	5:30	5:30	CD
37894	493	189	11	11	CD
37894	493	190	|	|	CD
37894	493	191	6	6	CD
37894	493	192	12	12	CD
37894	493	193	10:53	10:53	CD
37894	493	194	5:30	5:30	CD
37894	493	195	11:30	11:30	CD
37894	493	196	|	|	CD
37894	493	197	11:27	11:27	CD
37894	493	198	6	6	CD
37894	493	199	10	10	CD
37894	493	200	5	5	CD
37894	493	201	11	11	CD
37894	493	202	|	|	CD
37894	493	203	11:28	11:28	CD
37894	493	204	6	6	CD
37894	493	205	11:30	11:30	CD
37894	493	206	10:55	10:55	CD
37894	493	207	5	5	CD
37894	493	208	12	12	CD
37894	493	209	|	|	CD
37894	493	210	5:30	5:30	CD
37894	493	211	12:30	12:30	CD
37894	493	212	5	5	CD
37894	493	213	11	11	CD
37894	493	214	|	|	CD
37894	493	215	11:29	11:29	CD
37894	493	216	6	6	CD
37894	493	217	11:30	11:30	CD
37894	493	218	10:56	10:56	CD
37894	493	219	6	6	CD
37894	493	220	10	10	CD
37894	493	221	|	|	CD
37894	493	222	4	4	CD
37894	493	223	12	12	CD
37894	493	224	10:58	10:58	CD
37894	493	225	4:30	4:30	CD
37894	493	226	11:30	11:30	CD
37894	493	227	|	|	CD
37894	493	228	6:30	6:30	CD
37894	493	229	10:30	10:30	CD
37894	493	230	5:45	5:45	CD
37894	493	231	11:45	11:45	CD
37894	493	232	|	|	CD
37894	493	233	6	6	CD
37894	493	234	11	11	CD
37894	493	235	10:59	10:59	CD
37894	493	236	6:30	6:30	CD
37894	493	237	10:30	10:30	CD
37894	493	238	|	|	CD
37894	493	239	11:30	11:30	CD
37894	493	240	3	3	CD
37894	493	241	10	10	CD
37894	493	242	11:00	11:00	CD
37894	493	243	3:30	3:30	CD
37894	493	244	12	12	CD
37894	493	245	|	|	NNS
37894	493	246	(	(	-LRB-
37894	493	247	2	2	CD
37894	493	248	birds	bird	NNS
37894	493	249	at	at	IN
37894	493	250	once	once	RB
37894	493	251	)	)	-RRB-
37894	493	252	6:30	6:30	CD
37894	493	253	11	11	CD
37894	493	254	|	|	CD
37894	493	255	11:31	11:31	CD
37894	493	256	5	5	CD
37894	493	257	10:30	10:30	CD
37894	493	258	(	(	-LRB-
37894	493	259	2	2	CD
37894	493	260	birds	bird	NNS
37894	493	261	at	at	IN
37894	493	262	once	once	RB
37894	493	263	)	)	-RRB-
37894	493	264	|	|	CD
37894	493	265	5:30	5:30	CD
37894	493	266	10:30	10:30	CD
37894	493	267	11:03	11:03	CD
37894	493	268	6	6	CD
37894	493	269	11	11	CD
37894	493	270	|	|	CD
37894	493	271	11:32	11:32	CD
37894	493	272	6	6	CD
37894	493	273	11:30	11:30	CD
37894	493	274	11:04	11:04	CD
37894	493	275	3	3	CD
37894	493	276	12	12	CD
37894	493	277	|	|	CD
37894	493	278	11:33	11:33	CD
37894	493	279	7:30	7:30	CD
37894	493	280	9:30	9:30	CD
37894	493	281	5	5	CD
37894	493	282	12	12	CD
37894	493	283	|	|	CD
37894	493	284	4	4	CD
37894	493	285	10:30	10:30	CD
37894	493	286	11:05	11:05	CD
37894	493	287	6	6	CD
37894	493	288	10	10	CD
37894	493	289	|	|	CD
37894	493	290	6	6	CD
37894	493	291	11:30	11:30	CD
37894	493	292	5	5	CD
37894	493	293	11	11	CD
37894	493	294	|	|	CD
37894	493	295	8	8	CD
37894	493	296	9:30	9:30	CD
37894	493	297	11:06	11:06	CD
37894	493	298	6	6	CD
37894	493	299	10:30	10:30	CD
37894	493	300	|	|	CD
37894	493	301	11:35	11:35	CD
37894	493	302	7	7	CD
37894	493	303	10	10	CD
37894	493	304	11:07	11:07	CD
37894	493	305	3	3	CD
37894	493	306	10	10	CD
37894	493	307	|	|	CD
37894	493	308	4:30	4:30	CD
37894	493	309	1	1	CD
37894	493	310	11:08	11:08	CD
37894	493	311	6	6	CD
37894	493	312	11	11	CD
37894	493	313	|	|	CD
37894	493	314	11:38	11:38	CD
37894	493	315	6:30	6:30	CD
37894	493	316	11	11	CD
37894	493	317	11:10	11:10	CD
37894	493	318	7	7	CD
37894	493	319	9:30	9:30	CD
37894	493	320	|	|	CD
37894	493	321	11:40	11:40	CD
37894	493	322	5:30	5:30	CD
37894	493	323	12	12	CD
37894	493	324	11:11	11:11	CD
37894	493	325	5	5	CD
37894	493	326	9:15	9:15	CD
37894	493	327	|	|	CD
37894	493	328	11:42	11:42	CD
37894	493	329	4	4	CD
37894	493	330	2	2	CD
37894	493	331	11:13	11:13	CD
37894	493	332	5	5	CD
37894	493	333	12	12	CD
37894	493	334	|	|	CD
37894	493	335	5	5	CD
37894	493	336	12	12	CD
37894	493	337	11:14	11:14	CD
37894	493	338	6:30	6:30	CD
37894	493	339	10	10	CD
37894	493	340	|	|	CD
37894	493	341	6	6	CD
37894	493	342	10	10	CD
37894	493	343	5:30	5:30	CD
37894	493	344	1	1	CD
37894	493	345	|	|	CD
37894	493	346	4	4	CD
37894	493	347	2	2	CD
37894	493	348	4	4	CD
37894	493	349	12	12	CD
37894	493	350	|	|	CD
37894	493	351	5	5	CD
37894	493	352	12	12	CD
37894	493	353	------------------------------+------------------------------	------------------------------+------------------------------	CD
37894	493	354	Table	table	NN
37894	493	355	1.--_Concluded	1.--_Concluded	NNP
37894	493	356	_	_	NNP
37894	493	357	=	=	SYM
37894	493	358	=	=	SYM
37894	493	359	=	=	SYM
37894	493	360	=	=	SYM
37894	493	361	=	=	SYM
37894	493	362	=	=	SYM
37894	493	363	=	=	SYM
37894	493	364	=	=	SYM
37894	493	365	=	=	SYM
37894	493	366	=	=	SYM
37894	493	367	=	=	SYM
37894	493	368	=	=	SYM
37894	493	369	=	=	SYM
37894	493	370	=	=	SYM
37894	493	371	=	=	SYM
37894	493	372	=	=	SYM
37894	493	373	=	=	SYM
37894	493	374	=	=	SYM
37894	493	375	=	=	SYM
37894	493	376	=	=	SYM
37894	493	377	=	=	SYM
37894	493	378	=	=	SYM
37894	493	379	=	=	SYM
37894	493	380	=	=	SYM
37894	493	381	=	=	SYM
37894	493	382	=	=	SYM
37894	493	383	=	=	SYM
37894	493	384	=	=	SYM
37894	493	385	=	=	NFP
37894	493	386	=	=	SYM
37894	493	387	+	+	SYM
37894	493	388	=	=	SYM
37894	493	389	=	=	SYM
37894	493	390	=	=	SYM
37894	493	391	=	=	SYM
37894	493	392	=	=	SYM
37894	493	393	=	=	SYM
37894	493	394	=	=	SYM
37894	493	395	=	=	SYM
37894	493	396	=	=	SYM
37894	493	397	=	=	SYM
37894	493	398	=	=	SYM
37894	493	399	=	=	SYM
37894	493	400	=	=	SYM
37894	493	401	=	=	SYM
37894	493	402	=	=	SYM
37894	493	403	=	=	SYM
37894	493	404	=	=	SYM
37894	493	405	=	=	SYM
37894	493	406	=	=	SYM
37894	493	407	=	=	SYM
37894	493	408	=	=	SYM
37894	493	409	=	=	SYM
37894	493	410	=	=	SYM
37894	493	411	=	=	SYM
37894	493	412	=	=	SYM
37894	493	413	=	=	SYM
37894	493	414	=	=	SYM
37894	493	415	=	=	NFP
37894	493	416	=	=	NFP
37894	493	417	=	=	NFP
37894	493	418	Time	Time	NNP
37894	493	419	In	in	IN
37894	493	420	Out	Out	NNP
37894	493	421	|	|	NNP
37894	493	422	Time	time	NN
37894	493	423	In	in	IN
37894	493	424	Out	Out	NNP
37894	493	425	------------------------------+------------------------------	------------------------------+------------------------------	NFP
37894	493	426	11:44	11:44	CD
37894	493	427	8	8	CD
37894	493	428	9:30	9:30	CD
37894	493	429	|	|	CD
37894	493	430	8	8	CD
37894	493	431	10:15	10:15	CD
37894	493	432	7	7	CD
37894	493	433	11	11	CD
37894	493	434	|	|	CD
37894	493	435	12:16	12:16	CD
37894	493	436	3:30	3:30	CD
37894	493	437	1:30	1:30	CD
37894	493	438	6	6	CD
37894	493	439	10	10	CD
37894	493	440	|	|	CD
37894	493	441	8	8	CD
37894	493	442	11	11	CD
37894	493	443	11:45	11:45	CD
37894	493	444	5	5	CD
37894	493	445	12	12	CD
37894	493	446	|	|	CD
37894	493	447	12:23	12:23	CD
37894	493	448	7	7	CD
37894	493	449	1:30	1:30	CD
37894	493	450	6	6	CD
37894	493	451	10:30	10:30	CD
37894	493	452	|	|	CD
37894	493	453	6	6	CD
37894	493	454	12:30	12:30	CD
37894	493	455	5:45	5:45	CD
37894	493	456	11	11	CD
37894	493	457	|	|	CD
37894	493	458	12:36	12:36	CD
37894	493	459	8	8	CD
37894	493	460	11	11	CD
37894	493	461	4	4	CD
37894	493	462	12	12	CD
37894	493	463	|	|	CD
37894	493	464	12:37	12:37	CD
37894	493	465	7:30	7:30	CD
37894	493	466	1	1	CD
37894	493	467	11:46	11:46	CD
37894	493	468	7	7	CD
37894	493	469	11	11	CD
37894	493	470	|	|	CD
37894	493	471	12:38	12:38	CD
37894	493	472	7	7	CD
37894	493	473	12:30	12:30	CD
37894	493	474	6	6	CD
37894	493	475	12	12	CD
37894	493	476	|	|	CD
37894	493	477	12:40	12:40	CD
37894	493	478	8	8	CD
37894	493	479	1	1	CD
37894	493	480	11:47	11:47	CD
37894	493	481	8	8	CD
37894	493	482	10	10	CD
37894	493	483	|	|	CD
37894	493	484	12:45	12:45	CD
37894	493	485	7:30	7:30	CD
37894	493	486	1	1	CD
37894	493	487	11:48	11:48	CD
37894	493	488	6	6	CD
37894	493	489	10	10	CD
37894	493	490	|	|	CD
37894	493	491	12:47	12:47	CD
37894	493	492	5:30	5:30	CD
37894	493	493	1	1	CD
37894	493	494	11:49	11:49	CD
37894	493	495	6:30	6:30	CD
37894	493	496	10:30	10:30	CD
37894	493	497	|	|	CD
37894	493	498	12:48	12:48	CD
37894	493	499	7	7	CD
37894	493	500	1	1	CD
37894	493	501	11:51	11:51	CD
37894	493	502	8	8	CD
37894	493	503	10	10	CD
37894	493	504	|	|	CD
37894	493	505	12:52	12:52	CD
37894	493	506	5:30	5:30	CD
37894	493	507	1:30	1:30	CD
37894	493	508	8	8	CD
37894	493	509	10	10	CD
37894	493	510	|	|	CD
37894	493	511	12:54	12:54	CD
37894	493	512	-	-	HYPH
37894	493	513	12:55	12:55	CD
37894	493	514	Time	time	NN
37894	493	515	out	out	RB
37894	493	516	8	8	CD
37894	493	517	10	10	CD
37894	493	518	|	|	CD
37894	493	519	12:56	12:56	CD
37894	493	520	8	8	CD
37894	493	521	10:45	10:45	CD
37894	493	522	8	8	CD
37894	493	523	10	10	CD
37894	493	524	|	|	CD
37894	493	525	12:58	12:58	CD
37894	493	526	5:30	5:30	CD
37894	493	527	1:30	1:30	CD
37894	493	528	6	6	CD
37894	493	529	10	10	CD
37894	493	530	|	|	CD
37894	493	531	7	7	CD
37894	493	532	1:30	1:30	CD
37894	493	533	8	8	CD
37894	493	534	10	10	CD
37894	493	535	|	|	CD
37894	493	536	7	7	CD
37894	493	537	2	2	CD
37894	493	538	6	6	CD
37894	493	539	11	11	CD
37894	493	540	|	|	CD
37894	493	541	12:59	12:59	CD
37894	493	542	5	5	CD
37894	493	543	3	3	CD
37894	493	544	7	7	CD
37894	493	545	12	12	CD
37894	493	546	|	|	CD
37894	493	547	1:00	1:00	CD
37894	493	548	-	-	SYM
37894	493	549	1:30	1:30	CD
37894	493	550	Time	time	NN
37894	493	551	out	out	RB
37894	493	552	11:52	11:52	CD
37894	493	553	5	5	CD
37894	493	554	1	1	CD
37894	493	555	|	|	CD
37894	493	556	1:37	1:37	CD
37894	493	557	8	8	CD
37894	493	558	12	12	CD
37894	493	559	11:54	11:54	CD
37894	493	560	7	7	CD
37894	493	561	11	11	CD
37894	493	562	|	|	CD
37894	493	563	1:38	1:38	CD
37894	493	564	8	8	CD
37894	493	565	12	12	CD
37894	493	566	6	6	CD
37894	493	567	12:30	12:30	CD
37894	493	568	|	|	CD
37894	493	569	1:48	1:48	CD
37894	493	570	7	7	CD
37894	493	571	1	1	CD
37894	493	572	11:55	11:55	CD
37894	493	573	5	5	CD
37894	493	574	12	12	CD
37894	493	575	|	|	CD
37894	493	576	7	7	CD
37894	493	577	1	1	CD
37894	493	578	11:56	11:56	CD
37894	493	579	7	7	CD
37894	493	580	10	10	CD
37894	493	581	|	|	CD
37894	493	582	1:51	1:51	CD
37894	493	583	5:30	5:30	CD
37894	493	584	11	11	CD
37894	493	585	5	5	CD
37894	493	586	12	12	CD
37894	493	587	|	|	CD
37894	493	588	1:57	1:57	CD
37894	493	589	8	8	CD
37894	493	590	1	1	CD
37894	493	591	11:58	11:58	CD
37894	493	592	8	8	CD
37894	493	593	11	11	CD
37894	493	594	|	|	CD
37894	493	595	2:07	2:07	CD
37894	493	596	7	7	CD
37894	493	597	2	2	CD
37894	493	598	11:59	11:59	CD
37894	493	599	5:30	5:30	CD
37894	493	600	12	12	CD
37894	493	601	|	|	CD
37894	493	602	2:09	2:09	CD
37894	493	603	9	9	CD
37894	493	604	12	12	CD
37894	493	605	12:00	12:00	CD
37894	493	606	-	-	SYM
37894	493	607	12:03	12:03	CD
37894	493	608	Time	time	NN
37894	493	609	out	out	RB
37894	493	610	|	|	CD
37894	493	611	2:10	2:10	CD
37894	493	612	8	8	CD
37894	493	613	1	1	CD
37894	493	614	12:03	12:03	CD
37894	493	615	5:30	5:30	CD
37894	493	616	11:30	11:30	CD
37894	493	617	|	|	CD
37894	493	618	2:17	2:17	CD
37894	493	619	9	9	CD
37894	493	620	12	12	CD
37894	493	621	12:04	12:04	CD
37894	493	622	8	8	CD
37894	493	623	11	11	CD
37894	493	624	|	|	CD
37894	493	625	2:21	2:21	CD
37894	493	626	6	6	CD
37894	493	627	2	2	CD
37894	493	628	12:07	12:07	CD
37894	493	629	6	6	CD
37894	493	630	12:30	12:30	CD
37894	493	631	|	|	CD
37894	493	632	2:30	2:30	CD
37894	493	633	5:30	5:30	CD
37894	493	634	3:15	3:15	CD
37894	493	635	7:30	7:30	CD
37894	493	636	1	1	CD
37894	493	637	|	|	CD
37894	493	638	2:32	2:32	CD
37894	493	639	8	8	CD
37894	493	640	2	2	CD
37894	493	641	12:08	12:08	CD
37894	493	642	5	5	CD
37894	493	643	10:30	10:30	CD
37894	493	644	|	|	CD
37894	493	645	2:46	2:46	CD
37894	493	646	7	7	CD
37894	493	647	1	1	CD
37894	493	648	12:09	12:09	CD
37894	493	649	5:30	5:30	CD
37894	493	650	1	1	CD
37894	493	651	|	|	CD
37894	493	652	3:36	3:36	CD
37894	493	653	9	9	CD
37894	493	654	2	2	CD
37894	493	655	7:30	7:30	CD
37894	493	656	2	2	CD
37894	493	657	|	|	CD
37894	493	658	3:39	3:39	CD
37894	493	659	8:30	8:30	CD
37894	493	660	2	2	CD
37894	493	661	12:10	12:10	CD
37894	493	662	6:30	6:30	CD
37894	493	663	12:45	12:45	CD
37894	493	664	|	|	CD
37894	493	665	3:45	3:45	CD
37894	493	666	6	6	CD
37894	493	667	4	4	CD
37894	493	668	12:13	12:13	CD
37894	493	669	8	8	CD
37894	493	670	11	11	CD
37894	493	671	|	|	CD
37894	493	672	3:55	3:55	CD
37894	493	673	9	9	CD
37894	493	674	2	2	CD
37894	493	675	12:14	12:14	CD
37894	493	676	7	7	CD
37894	493	677	1	1	CD
37894	493	678	|	|	CD
37894	493	679	4:00	4:00	CD
37894	493	680	8	8	CD
37894	493	681	3	3	CD
37894	493	682	12:15	12:15	CD
37894	493	683	7	7	CD
37894	493	684	12:30	12:30	CD
37894	493	685	|	|	CD
37894	493	686	4:03	4:03	CD
37894	493	687	9	9	CD
37894	493	688	2	2	CD
37894	493	689	7:15	7:15	CD
37894	493	690	1:30	1:30	CD
37894	493	691	|	|	CD
37894	493	692	4:30	4:30	CD
37894	493	693	Closed	closed	JJ
37894	493	694	station	station	NN
37894	493	695	------------------------------+------------------------------	------------------------------+------------------------------	:
37894	493	696	We	-PRON-	PRP
37894	493	697	now	now	RB
37894	493	698	have	have	VBP
37894	493	699	a	a	DT
37894	493	700	concise	concise	JJ
37894	493	701	picture	picture	NN
37894	493	702	of	of	IN
37894	493	703	the	the	DT
37894	493	704	apparent	apparent	JJ
37894	493	705	pathways	pathway	NNS
37894	493	706	of	of	IN
37894	493	707	all	all	PDT
37894	493	708	the	the	DT
37894	493	709	birds	bird	NNS
37894	493	710	recorded	record	VBN
37894	493	711	in	in	IN
37894	493	712	each	each	DT
37894	493	713	hour	hour	NN
37894	493	714	of	of	IN
37894	493	715	observation	observation	NN
37894	493	716	.	.	.
37894	494	1	But	but	CC
37894	494	2	the	the	DT
37894	494	3	coördinates	coördinate	NNS
37894	494	4	do	do	VBP
37894	494	5	not	not	RB
37894	494	6	have	have	VB
37894	494	7	the	the	DT
37894	494	8	same	same	JJ
37894	494	9	meaning	meaning	NN
37894	494	10	as	as	IN
37894	494	11	readings	reading	NNS
37894	494	12	of	of	IN
37894	494	13	a	a	DT
37894	494	14	horizontal	horizontal	JJ
37894	494	15	clock	clock	NN
37894	494	16	on	on	IN
37894	494	17	the	the	DT
37894	494	18	earth	earth	NN
37894	494	19	's	's	POS
37894	494	20	surface	surface	NN
37894	494	21	,	,	,
37894	494	22	placed	place	VBN
37894	494	23	in	in	IN
37894	494	24	relation	relation	NN
37894	494	25	to	to	IN
37894	494	26	the	the	DT
37894	494	27	points	point	NNS
37894	494	28	of	of	IN
37894	494	29	the	the	DT
37894	494	30	compass	compass	NN
37894	494	31	.	.	.
37894	495	1	They	-PRON-	PRP
37894	495	2	are	be	VBP
37894	495	3	merely	merely	RB
37894	495	4	projections	projection	NNS
37894	495	5	of	of	IN
37894	495	6	the	the	DT
37894	495	7	birds	bird	NNS
37894	495	8	'	'	POS
37894	495	9	courses	course	NNS
37894	495	10	.	.	.
37894	496	1	An	an	DT
37894	496	2	equation	equation	NN
37894	496	3	is	be	VBZ
37894	496	4	available	available	JJ
37894	496	5	for	for	IN
37894	496	6	reversing	reverse	VBG
37894	496	7	the	the	DT
37894	496	8	effect	effect	NN
37894	496	9	of	of	IN
37894	496	10	projection	projection	NN
37894	496	11	and	and	CC
37894	496	12	discovering	discover	VBG
37894	496	13	the	the	DT
37894	496	14	true	true	JJ
37894	496	15	directions	direction	NNS
37894	496	16	of	of	IN
37894	496	17	flight	flight	NN
37894	496	18	.	.	.
37894	497	1	This	this	DT
37894	497	2	formula	formula	NN
37894	497	3	,	,	,
37894	497	4	requiring	require	VBG
37894	497	5	thirty	thirty	CD
37894	497	6	-	-	HYPH
37894	497	7	five	five	CD
37894	497	8	separate	separate	JJ
37894	497	9	computations	computation	NNS
37894	497	10	for	for	IN
37894	497	11	the	the	DT
37894	497	12	pathways	pathway	NNS
37894	497	13	reproduced	reproduce	VBN
37894	497	14	in	in	IN
37894	497	15	Figure	Figure	NNP
37894	497	16	12	12	CD
37894	497	17	alone	alone	RB
37894	497	18	,	,	,
37894	497	19	is	be	VBZ
37894	497	20	far	far	RB
37894	497	21	too	too	RB
37894	497	22	-	-	HYPH
37894	497	23	consuming	consume	VBG
37894	497	24	for	for	IN
37894	497	25	the	the	DT
37894	497	26	handling	handling	NN
37894	497	27	of	of	IN
37894	497	28	large	large	JJ
37894	497	29	quantities	quantity	NNS
37894	497	30	of	of	IN
37894	497	31	data	datum	NNS
37894	497	32	.	.	.
37894	498	1	A	a	DT
37894	498	2	simpler	simple	JJR
37894	498	3	procedure	procedure	NN
37894	498	4	is	be	VBZ
37894	498	5	to	to	TO
37894	498	6	divide	divide	VB
37894	498	7	the	the	DT
37894	498	8	compass	compass	NN
37894	498	9	into	into	IN
37894	498	10	sectors	sector	NNS
37894	498	11	and	and	CC
37894	498	12	,	,	,
37894	498	13	with	with	IN
37894	498	14	the	the	DT
37894	498	15	aid	aid	NN
37894	498	16	of	of	IN
37894	498	17	a	a	DT
37894	498	18	reverse	reverse	JJ
37894	498	19	equation	equation	NN
37894	498	20	,	,	,
37894	498	21	to	to	TO
37894	498	22	draw	draw	VB
37894	498	23	in	in	IN
37894	498	24	the	the	DT
37894	498	25	projected	project	VBN
37894	498	26	boundaries	boundary	NNS
37894	498	27	of	of	IN
37894	498	28	these	these	DT
37894	498	29	divisions	division	NNS
37894	498	30	on	on	IN
37894	498	31	the	the	DT
37894	498	32	circular	circular	JJ
37894	498	33	diagrams	diagram	NNS
37894	498	34	of	of	IN
37894	498	35	the	the	DT
37894	498	36	moon	moon	NN
37894	498	37	.	.	.
37894	499	1	A	a	DT
37894	499	2	standardized	standardized	JJ
37894	499	3	set	set	NN
37894	499	4	of	of	IN
37894	499	5	sectors	sector	NNS
37894	499	6	,	,	,
37894	499	7	each	each	DT
37894	499	8	22	22	CD
37894	499	9	-	-	HYPH
37894	499	10	1/2	1/2	CD
37894	499	11	°	°	NNS
37894	499	12	wide	wide	JJ
37894	499	13	and	and	CC
37894	499	14	bounded	bound	VBN
37894	499	15	by	by	IN
37894	499	16	points	point	NNS
37894	499	17	of	of	IN
37894	499	18	the	the	DT
37894	499	19	compass	compass	NN
37894	499	20	,	,	,
37894	499	21	has	have	VBZ
37894	499	22	been	be	VBN
37894	499	23	evolved	evolve	VBN
37894	499	24	for	for	IN
37894	499	25	this	this	DT
37894	499	26	purpose	purpose	NN
37894	499	27	.	.	.
37894	500	1	They	-PRON-	PRP
37894	500	2	are	be	VBP
37894	500	3	identified	identify	VBN
37894	500	4	as	as	IN
37894	500	5	shown	show	VBN
37894	500	6	in	in	IN
37894	500	7	Figure	Figure	NNP
37894	500	8	16	16	CD
37894	500	9	.	.	.
37894	501	1	The	the	DT
37894	501	2	zones	zone	NNS
37894	501	3	north	north	NN
37894	501	4	of	of	IN
37894	501	5	the	the	DT
37894	501	6	east	east	NNP
37894	501	7	-	-	HYPH
37894	501	8	west	west	NN
37894	501	9	line	line	NN
37894	501	10	are	be	VBP
37894	501	11	known	know	VBN
37894	501	12	as	as	IN
37894	501	13	the	the	DT
37894	501	14	North	North	NNP
37894	501	15	,	,	,
37894	501	16	or	or	CC
37894	501	17	N	N	NNP
37894	501	18	,	,	,
37894	501	19	Sectors	Sectors	NNPS
37894	501	20	,	,	,
37894	501	21	as	as	IN
37894	501	22	N_{1	N_{1	NNP
37894	501	23	}	}	-RRB-
37894	501	24	,	,	,
37894	501	25	N_{2	N_{2	NNP
37894	501	26	}	}	-RRB-
37894	501	27	,	,	,
37894	501	28	N_{3	N_{3	NNP
37894	501	29	}	}	-RRB-
37894	501	30	,	,	,
37894	501	31	etc	etc	FW
37894	501	32	.	.	.
37894	502	1	Each	each	DT
37894	502	2	zone	zone	NN
37894	502	3	south	south	RB
37894	502	4	of	of	IN
37894	502	5	the	the	DT
37894	502	6	east	east	NNP
37894	502	7	-	-	HYPH
37894	502	8	west	west	NN
37894	502	9	line	line	NN
37894	502	10	bears	bear	VBZ
37894	502	11	the	the	DT
37894	502	12	same	same	JJ
37894	502	13	number	number	NN
37894	502	14	as	as	IN
37894	502	15	the	the	DT
37894	502	16	sector	sector	NN
37894	502	17	opposite	opposite	NN
37894	502	18	,	,	,
37894	502	19	but	but	CC
37894	502	20	is	be	VBZ
37894	502	21	distinguished	distinguish	VBN
37894	502	22	by	by	IN
37894	502	23	the	the	DT
37894	502	24	designation	designation	NN
37894	502	25	S.	S.	NNP
37894	502	26	[	[	-LRB-
37894	502	27	Illustration	illustration	NN
37894	502	28	:	:	:
37894	502	29	FIG	FIG	NNP
37894	502	30	.	.	.
37894	503	1	16	16	CD
37894	503	2	.	.	.
37894	504	1	Standard	standard	JJ
37894	504	2	sectors	sector	NNS
37894	504	3	for	for	IN
37894	504	4	designating	designate	VBG
37894	504	5	flight	flight	NN
37894	504	6	trends	trend	NNS
37894	504	7	.	.	.
37894	505	1	Each	each	DT
37894	505	2	zone	zone	NN
37894	505	3	covers	cover	VBZ
37894	505	4	a	a	DT
37894	505	5	span	span	NN
37894	505	6	of	of	IN
37894	505	7	22	22	CD
37894	505	8	-	-	HYPH
37894	505	9	1/2	1/2	CD
37894	505	10	°	°	NNS
37894	505	11	.	.	.
37894	506	1	The	the	DT
37894	506	2	N_{6	N_{6	NNP
37894	506	3	}	}	-RRB-
37894	506	4	and	and	CC
37894	506	5	N_{8	N_{8	NNP
37894	506	6	}	}	-RRB-
37894	506	7	,	,	,
37894	506	8	the	the	DT
37894	506	9	N_{5	N_{5	NNP
37894	506	10	}	}	-RRB-
37894	506	11	and	and	CC
37894	506	12	N_{7	N_{7	NNP
37894	506	13	}	}	-RRB-
37894	506	14	,	,	,
37894	506	15	and	and	CC
37894	506	16	their	-PRON-	PRP$
37894	506	17	south	south	JJ
37894	506	18	complements	complement	NNS
37894	506	19	,	,	,
37894	506	20	where	where	WRB
37894	506	21	usually	usually	RB
37894	506	22	few	few	JJ
37894	506	23	birds	bird	NNS
37894	506	24	are	be	VBP
37894	506	25	represented	represent	VBN
37894	506	26	,	,	,
37894	506	27	can	can	MD
37894	506	28	be	be	VB
37894	506	29	combined	combine	VBN
37894	506	30	and	and	CC
37894	506	31	identified	identify	VBN
37894	506	32	as	as	IN
37894	506	33	N_{6	N_{6	NNP
37894	506	34	-	-	HYPH
37894	506	35	8	8	NNP
37894	506	36	}	}	-RRB-
37894	506	37	and	and	CC
37894	506	38	N_{5	N_{5	NNP
37894	506	39	-	-	HYPH
37894	506	40	7	7	NNP
37894	506	41	}	}	-RRB-
37894	506	42	,	,	,
37894	506	43	etc	etc	FW
37894	506	44	.	.	.
37894	506	45	]	]	-RRB-
37894	507	1	Several	several	JJ
37894	507	2	methods	method	NNS
37894	507	3	may	may	MD
37894	507	4	be	be	VB
37894	507	5	used	use	VBN
37894	507	6	to	to	TO
37894	507	7	find	find	VB
37894	507	8	the	the	DT
37894	507	9	projection	projection	NN
37894	507	10	of	of	IN
37894	507	11	the	the	DT
37894	507	12	sector	sector	NN
37894	507	13	boundaries	boundary	NNS
37894	507	14	on	on	IN
37894	507	15	the	the	DT
37894	507	16	plot	plot	NN
37894	507	17	diagrams	diagram	NNS
37894	507	18	of	of	IN
37894	507	19	Figure	figure	NN
37894	507	20	15	15	CD
37894	507	21	.	.	.
37894	508	1	Time	time	NN
37894	508	2	may	may	MD
37894	508	3	be	be	VB
37894	508	4	saved	save	VBN
37894	508	5	by	by	IN
37894	508	6	reference	reference	NN
37894	508	7	to	to	IN
37894	508	8	graphic	graphic	JJ
37894	508	9	tables	table	NNS
37894	508	10	,	,	,
37894	508	11	too	too	RB
37894	508	12	lengthy	lengthy	JJ
37894	508	13	for	for	IN
37894	508	14	reproduction	reproduction	NN
37894	508	15	here	here	RB
37894	508	16	,	,	,
37894	508	17	showing	show	VBG
37894	508	18	the	the	DT
37894	508	19	projected	project	VBN
37894	508	20	reading	reading	NN
37894	508	21	in	in	IN
37894	508	22	degrees	degree	NNS
37894	508	23	for	for	IN
37894	508	24	every	every	DT
37894	508	25	boundary	boundary	NN
37894	508	26	,	,	,
37894	508	27	at	at	IN
37894	508	28	every	every	DT
37894	508	29	position	position	NN
37894	508	30	of	of	IN
37894	508	31	the	the	DT
37894	508	32	moon	moon	NN
37894	508	33	;	;	:
37894	508	34	and	and	CC
37894	508	35	a	a	DT
37894	508	36	mechanical	mechanical	JJ
37894	508	37	device	device	NN
37894	508	38	,	,	,
37894	508	39	designed	design	VBN
37894	508	40	by	by	IN
37894	508	41	C.	C.	NNP
37894	508	42	M.	M.	NNP
37894	508	43	Arney	Arney	NNP
37894	508	44	,	,	,
37894	508	45	duplicating	duplicate	VBG
37894	508	46	the	the	DT
37894	508	47	conditions	condition	NNS
37894	508	48	of	of	IN
37894	508	49	the	the	DT
37894	508	50	original	original	JJ
37894	508	51	projection	projection	NN
37894	508	52	,	,	,
37894	508	53	speeds	speed	VBZ
37894	508	54	up	up	RP
37894	508	55	the	the	DT
37894	508	56	work	work	NN
37894	508	57	even	even	RB
37894	508	58	further	further	RB
37894	508	59	.	.	.
37894	509	1	Both	both	DT
37894	509	2	methods	method	NNS
37894	509	3	are	be	VBP
37894	509	4	based	base	VBN
37894	509	5	on	on	IN
37894	509	6	the	the	DT
37894	509	7	principle	principle	NN
37894	509	8	of	of	IN
37894	509	9	the	the	DT
37894	509	10	following	follow	VBG
37894	509	11	formula	formula	NN
37894	509	12	:	:	:
37894	509	13	tan	tan	NNP
37894	509	14	[	[	-LRB-
37894	509	15	theta	theta	NN
37894	509	16	]	]	-RRB-
37894	509	17	=	=	NFP
37894	509	18	tan	tan	NN
37894	509	19	(	(	-LRB-
37894	509	20	[	[	-LRB-
37894	509	21	eta	eta	NNP
37894	509	22	]	]	-RRB-
37894	509	23	-	-	,
37894	509	24	[	[	-LRB-
37894	509	25	psi	psi	NNP
37894	509	26	]	]	-RRB-
37894	509	27	)	)	-RRB-
37894	509	28	/	/	SYM
37894	509	29	cos	cos	NNP
37894	509	30	Z_{0	Z_{0	NNP
37894	509	31	}	}	-RRB-
37894	509	32	(	(	-LRB-
37894	509	33	1	1	CD
37894	509	34	)	)	-RRB-
37894	509	35	[	[	-LRB-
37894	509	36	Illustration	illustration	NN
37894	509	37	:	:	:
37894	509	38	FIG	FIG	NNP
37894	509	39	.	.	.
37894	510	1	17	17	CD
37894	510	2	.	.	.
37894	511	1	The	the	DT
37894	511	2	meaning	meaning	NN
37894	511	3	of	of	IN
37894	511	4	symbols	symbol	NNS
37894	511	5	used	use	VBN
37894	511	6	in	in	IN
37894	511	7	the	the	DT
37894	511	8	direction	direction	NN
37894	511	9	formula	formula	NN
37894	511	10	.	.	.
37894	511	11	]	]	-RRB-
37894	512	1	The	the	DT
37894	512	2	symbols	symbol	NNS
37894	512	3	have	have	VBP
37894	512	4	these	these	DT
37894	512	5	meanings	meaning	NNS
37894	512	6	:	:	:
37894	512	7	[	[	-LRB-
37894	512	8	theta	theta	NN
37894	512	9	]	]	-RRB-
37894	512	10	is	be	VBZ
37894	512	11	the	the	DT
37894	512	12	position	position	NN
37894	512	13	angle	angle	NN
37894	512	14	of	of	IN
37894	512	15	the	the	DT
37894	512	16	sector	sector	NN
37894	512	17	boundary	boundary	JJ
37894	512	18	on	on	IN
37894	512	19	the	the	DT
37894	512	20	lunar	lunar	JJ
37894	512	21	clock	clock	NN
37894	512	22	,	,	,
37894	512	23	with	with	IN
37894	512	24	positive	positive	JJ
37894	512	25	values	value	NNS
37894	512	26	measured	measure	VBN
37894	512	27	counterclockwise	counterclockwise	NN
37894	512	28	from	from	IN
37894	512	29	12	12	CD
37894	512	30	o'clock	o'clock	NN
37894	512	31	,	,	,
37894	512	32	negative	negative	JJ
37894	512	33	angles	angle	NNS
37894	512	34	clockwise	clockwise	NN
37894	512	35	(	(	-LRB-
37894	512	36	Figure	Figure	NNP
37894	512	37	17A	17A	NNP
37894	512	38	)	)	-RRB-
37894	512	39	.	.	.
37894	513	1	[	[	-LRB-
37894	513	2	eta	eta	NNP
37894	513	3	]	]	-RRB-
37894	513	4	is	be	VBZ
37894	513	5	the	the	DT
37894	513	6	compass	compass	NN
37894	513	7	direction	direction	NN
37894	513	8	of	of	IN
37894	513	9	the	the	DT
37894	513	10	sector	sector	NN
37894	513	11	boundary	boundary	NNP
37894	513	12	expressed	express	VBD
37894	513	13	in	in	IN
37894	513	14	degrees	degree	NNS
37894	513	15	reckoned	reckon	VBD
37894	513	16	west	west	RB
37894	513	17	from	from	IN
37894	513	18	the	the	DT
37894	513	19	south	south	JJ
37894	513	20	point	point	NN
37894	513	21	(	(	-LRB-
37894	513	22	Figure	Figure	NNP
37894	513	23	17B	17B	NNP
37894	513	24	)	)	-RRB-
37894	513	25	.	.	.
37894	514	1	Z_{0	Z_{0	NNP
37894	514	2	}	}	-RRB-
37894	514	3	is	be	VBZ
37894	514	4	the	the	DT
37894	514	5	zenith	zenith	NNP
37894	514	6	distance	distance	NN
37894	514	7	of	of	IN
37894	514	8	the	the	DT
37894	514	9	moon	moon	NN
37894	514	10	's	's	POS
37894	514	11	center	center	NN
37894	514	12	midway	midway	NN
37894	514	13	through	through	IN
37894	514	14	the	the	DT
37894	514	15	hour	hour	NN
37894	514	16	of	of	IN
37894	514	17	observation	observation	NN
37894	514	18	,	,	,
37894	514	19	that	that	RB
37894	514	20	is	is	RB
37894	514	21	,	,	,
37894	514	22	at	at	IN
37894	514	23	the	the	DT
37894	514	24	half	half	JJ
37894	514	25	hour	hour	NN
37894	514	26	.	.	.
37894	515	1	It	-PRON-	PRP
37894	515	2	represents	represent	VBZ
37894	515	3	the	the	DT
37894	515	4	number	number	NN
37894	515	5	of	of	IN
37894	515	6	degrees	degree	NNS
37894	515	7	of	of	IN
37894	515	8	arc	arc	NN
37894	515	9	between	between	IN
37894	515	10	the	the	DT
37894	515	11	center	center	NN
37894	515	12	of	of	IN
37894	515	13	the	the	DT
37894	515	14	moon	moon	NN
37894	515	15	and	and	CC
37894	515	16	a	a	DT
37894	515	17	point	point	NN
37894	515	18	directly	directly	RB
37894	515	19	over	over	IN
37894	515	20	the	the	DT
37894	515	21	observer	observer	NN
37894	515	22	's	's	POS
37894	515	23	head	head	NN
37894	515	24	(	(	-LRB-
37894	515	25	Figure	Figure	NNP
37894	515	26	17C	17c	CD
37894	515	27	)	)	-RRB-
37894	515	28	.	.	.
37894	516	1	[	[	-LRB-
37894	516	2	psi	psi	NNP
37894	516	3	]	]	-RRB-
37894	516	4	is	be	VBZ
37894	516	5	the	the	DT
37894	516	6	azimuth	azimuth	NN
37894	516	7	of	of	IN
37894	516	8	the	the	DT
37894	516	9	moon	moon	NNP
37894	516	10	midway	midway	NNP
37894	516	11	through	through	IN
37894	516	12	the	the	DT
37894	516	13	hour	hour	NN
37894	516	14	of	of	IN
37894	516	15	observation	observation	NN
37894	516	16	,	,	,
37894	516	17	measured	measure	VBN
37894	516	18	from	from	IN
37894	516	19	the	the	DT
37894	516	20	south	south	JJ
37894	516	21	point	point	NN
37894	516	22	,	,	,
37894	516	23	positive	positive	JJ
37894	516	24	values	value	NNS
37894	516	25	to	to	IN
37894	516	26	the	the	DT
37894	516	27	west	west	JJ
37894	516	28	,	,	,
37894	516	29	negative	negative	JJ
37894	516	30	values	value	NNS
37894	516	31	to	to	IN
37894	516	32	the	the	DT
37894	516	33	east	east	JJ
37894	516	34	(	(	-LRB-
37894	516	35	Figure	Figure	NNP
37894	516	36	17D	17D	NNP
37894	516	37	)	)	-RRB-
37894	516	38	.	.	.
37894	517	1	[	[	-LRB-
37894	517	2	Illustration	illustration	NN
37894	517	3	:	:	:
37894	517	4	FIG	FIG	NNP
37894	517	5	.	.	.
37894	518	1	18	18	CD
37894	518	2	.	.	.
37894	519	1	Form	form	NN
37894	519	2	used	use	VBN
37894	519	3	in	in	IN
37894	519	4	the	the	DT
37894	519	5	computation	computation	NN
37894	519	6	of	of	IN
37894	519	7	the	the	DT
37894	519	8	zenith	zenith	NNP
37894	519	9	distance	distance	NN
37894	519	10	and	and	CC
37894	519	11	azimuth	azimuth	NN
37894	519	12	of	of	IN
37894	519	13	the	the	DT
37894	519	14	moon	moon	NN
37894	519	15	.	.	.
37894	519	16	]	]	-RRB-
37894	520	1	The	the	DT
37894	520	2	angle	angle	NN
37894	520	3	[	[	-LRB-
37894	520	4	eta	eta	NNP
37894	520	5	]	]	-RRB-
37894	520	6	for	for	IN
37894	520	7	any	any	DT
37894	520	8	sector	sector	NN
37894	520	9	boundary	boundary	NN
37894	520	10	can	can	MD
37894	520	11	be	be	VB
37894	520	12	found	find	VBN
37894	520	13	immediately	immediately	RB
37894	520	14	by	by	IN
37894	520	15	measuring	measure	VBG
37894	520	16	its	-PRON-	PRP$
37894	520	17	position	position	NN
37894	520	18	in	in	IN
37894	520	19	the	the	DT
37894	520	20	diagram	diagram	NN
37894	520	21	(	(	-LRB-
37894	520	22	Figure	Figure	NNP
37894	520	23	16	16	CD
37894	520	24	)	)	-RRB-
37894	520	25	.	.	.
37894	521	1	The	the	DT
37894	521	2	form	form	NN
37894	521	3	(	(	-LRB-
37894	521	4	Figure	figure	NN
37894	521	5	18	18	CD
37894	521	6	)	)	-RRB-
37894	521	7	for	for	IN
37894	521	8	the	the	DT
37894	521	9	"	"	``
37894	521	10	Computation	Computation	NNP
37894	521	11	of	of	IN
37894	521	12	Zenith	Zenith	NNP
37894	521	13	Distance	Distance	NNP
37894	521	14	and	and	CC
37894	521	15	Azimuth	Azimuth	NNP
37894	521	16	of	of	IN
37894	521	17	the	the	DT
37894	521	18	Moon	Moon	NNP
37894	521	19	"	"	''
37894	521	20	illustrates	illustrate	VBZ
37894	521	21	the	the	DT
37894	521	22	steps	step	NNS
37894	521	23	in	in	IN
37894	521	24	calculating	calculate	VBG
37894	521	25	the	the	DT
37894	521	26	values	value	NNS
37894	521	27	of	of	IN
37894	521	28	Z_{0	Z_{0	NNP
37894	521	29	}	}	-RRB-
37894	521	30	and	and	CC
37894	521	31	[	[	-LRB-
37894	521	32	psi]_{0	psi]_{0	NN
37894	521	33	}	}	-RRB-
37894	521	34	.	.	.
37894	522	1	From	from	IN
37894	522	2	the	the	DT
37894	522	3	American	American	NNP
37894	522	4	Air	Air	NNP
37894	522	5	Almanac	Almanac	NNP
37894	522	6	(	(	-LRB-
37894	522	7	Anonymous	Anonymous	NNP
37894	522	8	,	,	,
37894	522	9	1945	1945	CD
37894	522	10	-	-	SYM
37894	522	11	1948	1948	CD
37894	522	12	)	)	-RRB-
37894	522	13	,	,	,
37894	522	14	issued	issue	VBN
37894	522	15	annually	annually	RB
37894	522	16	by	by	IN
37894	522	17	the	the	DT
37894	522	18	U.	U.	NNP
37894	522	19	S.	S.	NNP
37894	522	20	Naval	Naval	NNP
37894	522	21	Observatory	Observatory	NNP
37894	522	22	in	in	IN
37894	522	23	three	three	CD
37894	522	24	volumes	volume	NNS
37894	522	25	,	,	,
37894	522	26	each	each	DT
37894	522	27	covering	cover	VBG
37894	522	28	four	four	CD
37894	522	29	months	month	NNS
37894	522	30	of	of	IN
37894	522	31	the	the	DT
37894	522	32	year	year	NN
37894	522	33	,	,	,
37894	522	34	the	the	DT
37894	522	35	Greenwich	Greenwich	NNP
37894	522	36	Hour	Hour	NNP
37894	522	37	Angle	Angle	NNP
37894	522	38	(	(	-LRB-
37894	522	39	GHA	GHA	NNP
37894	522	40	)	)	-RRB-
37894	522	41	and	and	CC
37894	522	42	the	the	DT
37894	522	43	declination	declination	NN
37894	522	44	of	of	IN
37894	522	45	the	the	DT
37894	522	46	moon	moon	NN
37894	522	47	may	may	MD
37894	522	48	be	be	VB
37894	522	49	obtained	obtain	VBN
37894	522	50	for	for	IN
37894	522	51	any	any	DT
37894	522	52	ten	ten	CD
37894	522	53	-	-	HYPH
37894	522	54	minute	minute	NN
37894	522	55	interval	interval	NN
37894	522	56	of	of	IN
37894	522	57	the	the	DT
37894	522	58	date	date	NN
37894	522	59	in	in	IN
37894	522	60	question	question	NN
37894	522	61	.	.	.
37894	523	1	The	the	DT
37894	523	2	Local	Local	NNP
37894	523	3	Hour	Hour	NNP
37894	523	4	Angle	Angle	NNP
37894	523	5	(	(	-LRB-
37894	523	6	LHA	LHA	NNP
37894	523	7	)	)	-RRB-
37894	523	8	of	of	IN
37894	523	9	the	the	DT
37894	523	10	observation	observation	NN
37894	523	11	station	station	NN
37894	523	12	is	be	VBZ
37894	523	13	determined	determine	VBN
37894	523	14	by	by	IN
37894	523	15	subtracting	subtract	VBG
37894	523	16	the	the	DT
37894	523	17	longitude	longitude	NN
37894	523	18	of	of	IN
37894	523	19	the	the	DT
37894	523	20	station	station	NN
37894	523	21	from	from	IN
37894	523	22	the	the	DT
37894	523	23	GHA	GHA	NNP
37894	523	24	.	.	.
37894	524	1	Reference	reference	NN
37894	524	2	is	be	VBZ
37894	524	3	then	then	RB
37894	524	4	made	make	VBN
37894	524	5	to	to	IN
37894	524	6	the	the	DT
37894	524	7	"	"	``
37894	524	8	Tables	Tables	NNPS
37894	524	9	of	of	IN
37894	524	10	Computed	Computed	NNP
37894	524	11	Altitude	Altitude	NNP
37894	524	12	and	and	CC
37894	524	13	Azimuth	Azimuth	NNP
37894	524	14	,	,	,
37894	524	15	"	"	''
37894	524	16	published	publish	VBN
37894	524	17	by	by	IN
37894	524	18	the	the	DT
37894	524	19	U.	U.	NNP
37894	524	20	S.	S.	NNP
37894	524	21	Navy	Navy	NNP
37894	524	22	Department	Department	NNP
37894	524	23	,	,	,
37894	524	24	Hydrographic	Hydrographic	NNP
37894	524	25	Office	Office	NNP
37894	524	26	(	(	-LRB-
37894	524	27	Anonymous	Anonymous	NNP
37894	524	28	,	,	,
37894	524	29	1936	1936	CD
37894	524	30	-	-	SYM
37894	524	31	1941	1941	CD
37894	524	32	)	)	-RRB-
37894	524	33	,	,	,
37894	524	34	and	and	CC
37894	524	35	better	well	RBR
37894	524	36	known	know	VBN
37894	524	37	as	as	IN
37894	524	38	the	the	DT
37894	524	39	"	"	``
37894	524	40	H.O.	H.O.	NNP
37894	525	1	214	214	CD
37894	525	2	,	,	,
37894	525	3	"	"	''
37894	525	4	to	to	TO
37894	525	5	locate	locate	VB
37894	525	6	the	the	DT
37894	525	7	altitude	altitude	NN
37894	525	8	and	and	CC
37894	525	9	azimuth	azimuth	NN
37894	525	10	of	of	IN
37894	525	11	the	the	DT
37894	525	12	moon	moon	NN
37894	525	13	at	at	IN
37894	525	14	the	the	DT
37894	525	15	particular	particular	JJ
37894	525	16	station	station	NN
37894	525	17	for	for	IN
37894	525	18	the	the	DT
37894	525	19	middle	middle	NN
37894	525	20	of	of	IN
37894	525	21	the	the	DT
37894	525	22	hour	hour	NN
37894	525	23	during	during	IN
37894	525	24	which	which	WDT
37894	525	25	the	the	DT
37894	525	26	observations	observation	NNS
37894	525	27	were	be	VBD
37894	525	28	made	make	VBN
37894	525	29	.	.	.
37894	526	1	The	the	DT
37894	526	2	tables	table	NNS
37894	526	3	employ	employ	VBP
37894	526	4	three	three	CD
37894	526	5	variables	variable	NNS
37894	526	6	--	--	:
37894	526	7	the	the	DT
37894	526	8	latitude	latitude	NN
37894	526	9	of	of	IN
37894	526	10	the	the	DT
37894	526	11	locality	locality	NN
37894	526	12	measured	measure	VBN
37894	526	13	to	to	IN
37894	526	14	the	the	DT
37894	526	15	nearest	near	JJS
37894	526	16	degree	degree	NN
37894	526	17	,	,	,
37894	526	18	the	the	DT
37894	526	19	LHA	LHA	NNP
37894	526	20	as	as	IN
37894	526	21	determined	determine	VBN
37894	526	22	above	above	RB
37894	526	23	,	,	,
37894	526	24	and	and	CC
37894	526	25	the	the	DT
37894	526	26	declination	declination	NN
37894	526	27	of	of	IN
37894	526	28	the	the	DT
37894	526	29	moon	moon	NN
37894	526	30	measured	measure	VBN
37894	526	31	to	to	IN
37894	526	32	the	the	DT
37894	526	33	nearest	near	JJS
37894	526	34	30	30	CD
37894	526	35	minutes	minute	NNS
37894	526	36	of	of	IN
37894	526	37	arc	arc	NN
37894	526	38	.	.	.
37894	527	1	Interpolations	interpolation	NNS
37894	527	2	can	can	MD
37894	527	3	be	be	VB
37894	527	4	made	make	VBN
37894	527	5	,	,	,
37894	527	6	but	but	CC
37894	527	7	this	this	DT
37894	527	8	exactness	exactness	NN
37894	527	9	is	be	VBZ
37894	527	10	not	not	RB
37894	527	11	required	require	VBN
37894	527	12	.	.	.
37894	528	1	When	when	WRB
37894	528	2	the	the	DT
37894	528	3	latitude	latitude	NN
37894	528	4	of	of	IN
37894	528	5	the	the	DT
37894	528	6	observation	observation	NN
37894	528	7	station	station	NN
37894	528	8	is	be	VBZ
37894	528	9	in	in	IN
37894	528	10	the	the	DT
37894	528	11	northern	northern	JJ
37894	528	12	hemisphere	hemisphere	NN
37894	528	13	,	,	,
37894	528	14	the	the	DT
37894	528	15	H.O.	H.O.	NNP
37894	529	1	214	214	CD
37894	529	2	tables	table	NNS
37894	529	3	entitled	entitle	VBN
37894	529	4	"	"	``
37894	529	5	Declinations	Declinations	NNPS
37894	529	6	Contrary	Contrary	NNP
37894	529	7	Name	name	NN
37894	529	8	to	to	IN
37894	529	9	Latitude	Latitude	NNP
37894	529	10	"	"	''
37894	529	11	are	be	VBP
37894	529	12	used	use	VBN
37894	529	13	with	with	IN
37894	529	14	south	south	JJ
37894	529	15	declinations	declination	NNS
37894	529	16	of	of	IN
37894	529	17	the	the	DT
37894	529	18	moon	moon	NN
37894	529	19	,	,	,
37894	529	20	and	and	CC
37894	529	21	the	the	DT
37894	529	22	tables	table	NNS
37894	529	23	"	"	``
37894	529	24	Declinations	declination	NNS
37894	529	25	Same	same	JJ
37894	529	26	Name	Name	NNP
37894	529	27	as	as	IN
37894	529	28	Latitude	Latitude	NNP
37894	529	29	,	,	,
37894	529	30	"	"	''
37894	529	31	with	with	IN
37894	529	32	north	north	NN
37894	529	33	declinations	declination	NNS
37894	529	34	.	.	.
37894	530	1	In	in	IN
37894	530	2	the	the	DT
37894	530	3	sample	sample	NN
37894	530	4	shown	show	VBN
37894	530	5	in	in	IN
37894	530	6	Figure	Figure	NNP
37894	530	7	15	15	CD
37894	530	8	,	,	,
37894	530	9	the	the	DT
37894	530	10	declination	declination	NN
37894	530	11	of	of	IN
37894	530	12	the	the	DT
37894	530	13	moon	moon	NN
37894	530	14	at	at	IN
37894	530	15	11:30	11:30	CD
37894	530	16	P.	P.	NNP
37894	530	17	M.	M.	NNP
37894	530	18	,	,	,
37894	530	19	midway	midway	RB
37894	530	20	through	through	IN
37894	530	21	the	the	DT
37894	530	22	11	11	CD
37894	530	23	to	to	TO
37894	530	24	12	12	CD
37894	530	25	o'clock	o'clock	NN
37894	530	26	interval	interval	NN
37894	530	27	,	,	,
37894	530	28	was	be	VBD
37894	530	29	S	S	NNP
37894	530	30	20	20	CD
37894	530	31	°	°	,
37894	530	32	22	22	CD
37894	530	33	´	´	CD
37894	530	34	.	.	.
37894	531	1	Since	since	IN
37894	531	2	the	the	DT
37894	531	3	latitude	latitude	NN
37894	531	4	of	of	IN
37894	531	5	Progreso	Progreso	NNP
37894	531	6	,	,	,
37894	531	7	Yucatán	Yucatán	NNP
37894	531	8	is	be	VBZ
37894	531	9	N	N	NNP
37894	531	10	21	21	CD
37894	531	11	°	°	,
37894	531	12	17	17	CD
37894	531	13	´	´	CD
37894	531	14	,	,	,
37894	531	15	the	the	DT
37894	531	16	"	"	``
37894	531	17	Contrary	contrary	JJ
37894	531	18	Name	Name	NNP
37894	531	19	"	"	''
37894	531	20	tables	table	NNS
37894	531	21	apply	apply	VBP
37894	531	22	to	to	IN
37894	531	23	this	this	DT
37894	531	24	hour	hour	NN
37894	531	25	.	.	.
37894	532	1	Because	because	IN
37894	532	2	the	the	DT
37894	532	3	H.O.	H.O.	NNP
37894	533	1	214	214	CD
37894	533	2	expresses	express	VBZ
37894	533	3	the	the	DT
37894	533	4	vertical	vertical	JJ
37894	533	5	position	position	NN
37894	533	6	of	of	IN
37894	533	7	the	the	DT
37894	533	8	moon	moon	NN
37894	533	9	in	in	IN
37894	533	10	terms	term	NNS
37894	533	11	of	of	IN
37894	533	12	its	-PRON-	PRP$
37894	533	13	altitude	altitude	NN
37894	533	14	,	,	,
37894	533	15	instead	instead	RB
37894	533	16	of	of	IN
37894	533	17	its	-PRON-	PRP$
37894	533	18	zenith	zenith	NNP
37894	533	19	distance	distance	NN
37894	533	20	,	,	,
37894	533	21	a	a	DT
37894	533	22	conversion	conversion	NN
37894	533	23	is	be	VBZ
37894	533	24	required	require	VBN
37894	533	25	.	.	.
37894	534	1	The	the	DT
37894	534	2	former	former	JJ
37894	534	3	is	be	VBZ
37894	534	4	the	the	DT
37894	534	5	number	number	NN
37894	534	6	of	of	IN
37894	534	7	arc	arc	NN
37894	534	8	degrees	degree	NNS
37894	534	9	from	from	IN
37894	534	10	the	the	DT
37894	534	11	horizon	horizon	NN
37894	534	12	to	to	IN
37894	534	13	the	the	DT
37894	534	14	moon	moon	NN
37894	534	15	's	's	POS
37894	534	16	center	center	NN
37894	534	17	;	;	:
37894	534	18	therefore	therefore	RB
37894	534	19	Z_{0	Z_{0	NNP
37894	534	20	}	}	-RRB-
37894	534	21	is	be	VBZ
37894	534	22	readily	readily	RB
37894	534	23	obtained	obtain	VBN
37894	534	24	by	by	IN
37894	534	25	subtracting	subtract	VBG
37894	534	26	the	the	DT
37894	534	27	altitude	altitude	NN
37894	534	28	from	from	IN
37894	534	29	90	90	CD
37894	534	30	°	°	NNS
37894	534	31	.	.	.
37894	535	1	Moreover	moreover	RB
37894	535	2	,	,	,
37894	535	3	the	the	DT
37894	535	4	azimuth	azimuth	NN
37894	535	5	given	give	VBN
37894	535	6	in	in	IN
37894	535	7	the	the	DT
37894	535	8	H.O.	H.O.	NNP
37894	536	1	214	214	CD
37894	536	2	is	be	VBZ
37894	536	3	measured	measure	VBN
37894	536	4	on	on	IN
37894	536	5	a	a	DT
37894	536	6	360	360	CD
37894	536	7	°	°	NNS
37894	536	8	scale	scale	NN
37894	536	9	from	from	IN
37894	536	10	the	the	DT
37894	536	11	north	north	NN
37894	536	12	point	point	NN
37894	536	13	,	,	,
37894	536	14	whereas	whereas	IN
37894	536	15	the	the	DT
37894	536	16	azimuth	azimuth	NN
37894	536	17	used	use	VBN
37894	536	18	here	here	RB
37894	536	19	(	(	-LRB-
37894	536	20	[	[	-LRB-
37894	536	21	psi]_{0	psi]_{0	NN
37894	536	22	}	}	-RRB-
37894	536	23	)	)	-RRB-
37894	536	24	is	be	VBZ
37894	536	25	measured	measure	VBN
37894	536	26	180	180	CD
37894	536	27	°	°	NNS
37894	536	28	in	in	IN
37894	536	29	either	either	DT
37894	536	30	direction	direction	NN
37894	536	31	from	from	IN
37894	536	32	the	the	DT
37894	536	33	south	south	JJ
37894	536	34	point	point	NN
37894	536	35	,	,	,
37894	536	36	negative	negative	JJ
37894	536	37	values	value	NNS
37894	536	38	to	to	IN
37894	536	39	the	the	DT
37894	536	40	east	east	JJ
37894	536	41	,	,	,
37894	536	42	positive	positive	JJ
37894	536	43	values	value	NNS
37894	536	44	to	to	IN
37894	536	45	the	the	DT
37894	536	46	west	west	NN
37894	536	47	.	.	.
37894	537	1	I	-PRON-	PRP
37894	537	2	have	have	VBP
37894	537	3	designated	designate	VBN
37894	537	4	the	the	DT
37894	537	5	azimuth	azimuth	NN
37894	537	6	of	of	IN
37894	537	7	the	the	DT
37894	537	8	tables	table	NNS
37894	537	9	as	as	IN
37894	537	10	Az_{n	Az_{n	NNP
37894	537	11	}	}	-RRB-
37894	537	12	and	and	CC
37894	537	13	obtained	obtain	VBD
37894	537	14	the	the	DT
37894	537	15	desired	desire	VBN
37894	537	16	azimuth	azimuth	NN
37894	537	17	(	(	-LRB-
37894	537	18	[	[	-LRB-
37894	537	19	psi]_{0	psi]_{0	NN
37894	537	20	}	}	-RRB-
37894	537	21	)	)	-RRB-
37894	537	22	by	by	IN
37894	537	23	subtracting	subtract	VBG
37894	537	24	180	180	CD
37894	537	25	°	°	NNS
37894	537	26	from	from	IN
37894	537	27	Az_{n	Az_{n	NNP
37894	537	28	}	}	-RRB-
37894	537	29	.	.	.
37894	538	1	The	the	DT
37894	538	2	sign	sign	NN
37894	538	3	of	of	IN
37894	538	4	[	[	-LRB-
37894	538	5	psi]_{0	psi]_{0	NN
37894	538	6	}	}	-RRB-
37894	538	7	may	may	MD
37894	538	8	be	be	VB
37894	538	9	either	either	CC
37894	538	10	positive	positive	JJ
37894	538	11	or	or	CC
37894	538	12	negative	negative	JJ
37894	538	13	,	,	,
37894	538	14	depending	depend	VBG
37894	538	15	on	on	IN
37894	538	16	whether	whether	IN
37894	538	17	or	or	CC
37894	538	18	not	not	RB
37894	538	19	the	the	DT
37894	538	20	moon	moon	NN
37894	538	21	has	have	VBZ
37894	538	22	reached	reach	VBN
37894	538	23	its	-PRON-	PRP$
37894	538	24	zenith	zenith	NN
37894	538	25	and	and	CC
37894	538	26	hence	hence	RB
37894	538	27	the	the	DT
37894	538	28	meridian	meridian	NN
37894	538	29	of	of	IN
37894	538	30	the	the	DT
37894	538	31	observer	observer	NN
37894	538	32	.	.	.
37894	539	1	When	when	WRB
37894	539	2	the	the	DT
37894	539	3	GHA	GHA	NNP
37894	539	4	is	be	VBZ
37894	539	5	greater	great	JJR
37894	539	6	than	than	IN
37894	539	7	the	the	DT
37894	539	8	local	local	JJ
37894	539	9	longitude	longitude	NN
37894	539	10	(	(	-LRB-
37894	539	11	that	that	RB
37894	539	12	is	is	RB
37894	539	13	,	,	,
37894	539	14	the	the	DT
37894	539	15	longitude	longitude	NN
37894	539	16	of	of	IN
37894	539	17	the	the	DT
37894	539	18	observation	observation	NN
37894	539	19	station	station	NN
37894	539	20	)	)	-RRB-
37894	539	21	,	,	,
37894	539	22	the	the	DT
37894	539	23	azimuth	azimuth	NN
37894	539	24	is	be	VBZ
37894	539	25	positive	positive	JJ
37894	539	26	.	.	.
37894	540	1	When	when	WRB
37894	540	2	the	the	DT
37894	540	3	GHA	GHA	NNP
37894	540	4	is	be	VBZ
37894	540	5	less	less	JJR
37894	540	6	than	than	IN
37894	540	7	the	the	DT
37894	540	8	local	local	JJ
37894	540	9	longitude	longitude	NN
37894	540	10	,	,	,
37894	540	11	the	the	DT
37894	540	12	azimuth	azimuth	NN
37894	540	13	is	be	VBZ
37894	540	14	negative	negative	JJ
37894	540	15	.	.	.
37894	541	1	Locating	locate	VBG
37894	541	2	the	the	DT
37894	541	3	position	position	NN
37894	541	4	of	of	IN
37894	541	5	a	a	DT
37894	541	6	particular	particular	JJ
37894	541	7	sector	sector	NN
37894	541	8	boundary	boundary	NN
37894	541	9	now	now	RB
37894	541	10	becomes	become	VBZ
37894	541	11	a	a	DT
37894	541	12	mere	mere	JJ
37894	541	13	matter	matter	NN
37894	541	14	of	of	IN
37894	541	15	substituting	substitute	VBG
37894	541	16	the	the	DT
37894	541	17	values	value	NNS
37894	541	18	in	in	IN
37894	541	19	the	the	DT
37894	541	20	equation	equation	NN
37894	541	21	(	(	-LRB-
37894	541	22	1	1	CD
37894	541	23	)	)	-RRB-
37894	541	24	and	and	CC
37894	541	25	reducing	reduce	VBG
37894	541	26	.	.	.
37894	542	1	The	the	DT
37894	542	2	computation	computation	NN
37894	542	3	of	of	IN
37894	542	4	the	the	DT
37894	542	5	north	north	NN
37894	542	6	point	point	NN
37894	542	7	for	for	IN
37894	542	8	11	11	CD
37894	542	9	to	to	TO
37894	542	10	12	12	CD
37894	542	11	P.	P.	NNP
37894	542	12	M.	M.	NNP
37894	542	13	in	in	IN
37894	542	14	the	the	DT
37894	542	15	sample	sample	NN
37894	542	16	set	set	NN
37894	542	17	of	of	IN
37894	542	18	data	datum	NNS
37894	542	19	will	will	MD
37894	542	20	serve	serve	VB
37894	542	21	as	as	IN
37894	542	22	an	an	DT
37894	542	23	example	example	NN
37894	542	24	.	.	.
37894	543	1	Since	since	IN
37894	543	2	the	the	DT
37894	543	3	north	north	NN
37894	543	4	point	point	NN
37894	543	5	reckoned	reckon	VBD
37894	543	6	west	west	RB
37894	543	7	from	from	IN
37894	543	8	the	the	DT
37894	543	9	south	south	JJ
37894	543	10	point	point	NN
37894	543	11	is	be	VBZ
37894	543	12	180	180	CD
37894	543	13	°	°	NNS
37894	543	14	,	,	,
37894	543	15	its	-PRON-	PRP$
37894	543	16	[	[	-LRB-
37894	543	17	eta	eta	NNP
37894	543	18	]	]	-RRB-
37894	543	19	has	have	VBZ
37894	543	20	a	a	DT
37894	543	21	value	value	NN
37894	543	22	of	of	IN
37894	543	23	180	180	CD
37894	543	24	°	°	NNS
37894	543	25	.	.	.
37894	544	1	[	[	-LRB-
37894	544	2	Illustration	illustration	NN
37894	544	3	:	:	:
37894	544	4	FIG	FIG	NNP
37894	544	5	.	.	.
37894	545	1	19	19	CD
37894	545	2	.	.	.
37894	546	1	Method	method	NN
37894	546	2	of	of	IN
37894	546	3	plotting	plot	VBG
37894	546	4	sector	sector	NN
37894	546	5	boundaries	boundary	NNS
37894	546	6	on	on	IN
37894	546	7	the	the	DT
37894	546	8	diagrammatic	diagrammatic	JJ
37894	546	9	plots	plot	NNS
37894	546	10	.	.	.
37894	547	1	The	the	DT
37894	547	2	example	example	NN
37894	547	3	employed	employ	VBN
37894	547	4	is	be	VBZ
37894	547	5	the	the	DT
37894	547	6	11:00	11:00	CD
37894	547	7	to	to	IN
37894	547	8	12:00	12:00	CD
37894	547	9	P.	P.	NNP
37894	547	10	M.	M.	NNP
37894	547	11	diagram	diagram	NN
37894	547	12	of	of	IN
37894	547	13	Figure	Figure	NNP
37894	547	14	15	15	CD
37894	547	15	.	.	.
37894	547	16	]	]	-RRB-
37894	548	1	tan	tan	NNP
37894	548	2	[	[	-LRB-
37894	548	3	theta]_{Npt	theta]_{Npt	NNP
37894	548	4	.	.	.
37894	548	5	}	}	-RRB-
37894	549	1	=	=	NFP
37894	549	2	tan	tan	NNP
37894	549	3	(	(	-LRB-
37894	549	4	180	180	CD
37894	549	5	°	°	NNS
37894	549	6	-	-	,
37894	549	7	[	[	-LRB-
37894	549	8	psi]_{0	psi]_{0	NN
37894	549	9	}	}	-RRB-
37894	549	10	)	)	-RRB-
37894	549	11	/	/	SYM
37894	549	12	cos	cos	NNP
37894	549	13	Z_{0	Z_{0	NNP
37894	549	14	}	}	-RRB-
37894	549	15	Substituting	substitute	VBG
37894	549	16	values	value	NNS
37894	549	17	of	of	IN
37894	549	18	[	[	-LRB-
37894	549	19	psi]_{0	psi]_{0	NN
37894	549	20	}	}	-RRB-
37894	549	21	found	find	VBN
37894	549	22	on	on	IN
37894	549	23	the	the	DT
37894	549	24	form	form	NN
37894	549	25	(	(	-LRB-
37894	549	26	Figure	Figure	NNP
37894	549	27	18	18	CD
37894	549	28	)	)	-RRB-
37894	549	29	:	:	:
37894	549	30	tan	tan	NNP
37894	549	31	[	[	-LRB-
37894	549	32	theta]_{Npt	theta]_{Npt	NNP
37894	549	33	.	.	.
37894	549	34	}	}	-RRB-
37894	550	1	=	=	NFP
37894	550	2	tan	tan	NNP
37894	550	3	[	[	-LRB-
37894	550	4	180	180	CD
37894	550	5	°	°	NNS
37894	550	6	-	-	,
37894	550	7	(	(	-LRB-
37894	550	8	-35	-35	NNP
37894	550	9	°	°	NNS
37894	550	10	)	)	-RRB-
37894	550	11	]	]	-RRB-
37894	550	12	/	/	SYM
37894	550	13	cos	cos	NNP
37894	550	14	50	50	CD
37894	550	15	°	°	NNS
37894	550	16	=	=	SYM
37894	550	17	tan	tan	NNP
37894	550	18	215	215	CD
37894	550	19	°	°	,
37894	550	20	/	/	SYM
37894	550	21	cos	cos	NNP
37894	550	22	50	50	CD
37894	550	23	°	°	NNS
37894	550	24	=	=	SYM
37894	550	25	.700	.700	CD
37894	550	26	/	/	SYM
37894	550	27	.643	.643	CD
37894	550	28	=	=	SYM
37894	550	29	1.09	1.09	CD
37894	550	30	[	[	-LRB-
37894	550	31	theta]_{Npt	theta]_{Npt	NNP
37894	550	32	.	.	.
37894	550	33	}	}	-RRB-
37894	551	1	=	=	NFP
37894	551	2	47	47	CD
37894	551	3	°	°	,
37894	551	4	28	28	CD
37894	551	5	´	´	CD
37894	551	6	[	[	-LRB-
37894	551	7	Illustration	illustration	NN
37894	551	8	:	:	:
37894	551	9	FIG	FIG	NNP
37894	551	10	.	.	.
37894	552	1	20	20	CD
37894	552	2	.	.	.
37894	553	1	Form	form	VB
37894	553	2	for	for	IN
37894	553	3	computing	compute	VBG
37894	553	4	sector	sector	NN
37894	553	5	densities	density	NNS
37894	553	6	.	.	.
37894	553	7	]	]	-RRB-
37894	554	1	Four	four	CD
37894	554	2	angles	angle	NNS
37894	554	3	,	,	,
37894	554	4	one	one	CD
37894	554	5	in	in	IN
37894	554	6	each	each	DT
37894	554	7	quadrant	quadrant	NN
37894	554	8	,	,	,
37894	554	9	have	have	VBP
37894	554	10	the	the	DT
37894	554	11	same	same	JJ
37894	554	12	tangent	tangent	NN
37894	554	13	value	value	NN
37894	554	14	.	.	.
37894	555	1	Since	since	IN
37894	555	2	,	,	,
37894	555	3	in	in	IN
37894	555	4	processing	process	VBG
37894	555	5	spring	spring	NN
37894	555	6	data	datum	NNS
37894	555	7	,	,	,
37894	555	8	we	-PRON-	PRP
37894	555	9	are	be	VBP
37894	555	10	dealing	deal	VBG
37894	555	11	mainly	mainly	RB
37894	555	12	with	with	IN
37894	555	13	north	north	NN
37894	555	14	sectors	sector	NNS
37894	555	15	,	,	,
37894	555	16	it	-PRON-	PRP
37894	555	17	is	be	VBZ
37894	555	18	convenient	convenient	JJ
37894	555	19	to	to	TO
37894	555	20	choose	choose	VB
37894	555	21	the	the	DT
37894	555	22	acute	acute	JJ
37894	555	23	angle	angle	NN
37894	555	24	,	,	,
37894	555	25	in	in	IN
37894	555	26	this	this	DT
37894	555	27	instance	instance	NN
37894	555	28	47	47	CD
37894	555	29	°	°	,
37894	555	30	28	28	CD
37894	555	31	´	´	CD
37894	555	32	.	.	.
37894	556	1	In	in	IN
37894	556	2	doubtful	doubtful	JJ
37894	556	3	cases	case	NNS
37894	556	4	,	,	,
37894	556	5	the	the	DT
37894	556	6	value	value	NN
37894	556	7	of	of	IN
37894	556	8	the	the	DT
37894	556	9	numerator	numerator	NN
37894	556	10	of	of	IN
37894	556	11	the	the	DT
37894	556	12	equation	equation	NN
37894	556	13	(	(	-LRB-
37894	556	14	here	here	RB
37894	556	15	215	215	CD
37894	556	16	°	°	NNS
37894	556	17	)	)	-RRB-
37894	556	18	applied	apply	VBD
37894	556	19	as	as	IN
37894	556	20	an	an	DT
37894	556	21	angular	angular	JJ
37894	556	22	measure	measure	NN
37894	556	23	from	from	IN
37894	556	24	6	6	CD
37894	556	25	o'clock	o'clock	NN
37894	556	26	will	will	MD
37894	556	27	tell	tell	VB
37894	556	28	in	in	IN
37894	556	29	which	which	WDT
37894	556	30	quadrant	quadrant	NN
37894	556	31	the	the	DT
37894	556	32	projected	project	VBN
37894	556	33	boundary	boundary	NN
37894	556	34	must	must	MD
37894	556	35	fall	fall	VB
37894	556	36	.	.	.
37894	557	1	The	the	DT
37894	557	2	fact	fact	NN
37894	557	3	that	that	IN
37894	557	4	projection	projection	NN
37894	557	5	always	always	RB
37894	557	6	draws	draw	VBZ
37894	557	7	the	the	DT
37894	557	8	boundary	boundary	NN
37894	557	9	closer	close	JJR
37894	557	10	to	to	IN
37894	557	11	the	the	DT
37894	557	12	3	3	CD
37894	557	13	-	-	SYM
37894	557	14	9	9	CD
37894	557	15	line	line	NN
37894	557	16	serves	serve	VBZ
37894	557	17	as	as	IN
37894	557	18	a	a	DT
37894	557	19	further	further	JJ
37894	557	20	check	check	NN
37894	557	21	on	on	IN
37894	557	22	the	the	DT
37894	557	23	computation	computation	NN
37894	557	24	.	.	.
37894	558	1	[	[	-LRB-
37894	558	2	Illustration	illustration	NN
37894	558	3	:	:	:
37894	558	4	FIG	FIG	NNP
37894	558	5	.	.	.
37894	559	1	21	21	CD
37894	559	2	.	.	.
37894	560	1	Determinationn	Determinationn	NNP
37894	560	2	of	of	IN
37894	560	3	the	the	DT
37894	560	4	angle	angle	NN
37894	560	5	[	[	-LRB-
37894	560	6	alpha	alpha	NN
37894	560	7	]	]	-RRB-
37894	560	8	]	]	-RRB-
37894	560	9	In	in	IN
37894	560	10	the	the	DT
37894	560	11	same	same	JJ
37894	560	12	manner	manner	NN
37894	560	13	,	,	,
37894	560	14	the	the	DT
37894	560	15	projected	projected	JJ
37894	560	16	position	position	NN
37894	560	17	angles	angle	NNS
37894	560	18	of	of	IN
37894	560	19	all	all	PDT
37894	560	20	the	the	DT
37894	560	21	pertinent	pertinent	JJ
37894	560	22	sector	sector	NN
37894	560	23	boundaries	boundary	NNS
37894	560	24	for	for	IN
37894	560	25	a	a	DT
37894	560	26	given	give	VBN
37894	560	27	hour	hour	NN
37894	560	28	may	may	MD
37894	560	29	be	be	VB
37894	560	30	calculated	calculate	VBN
37894	560	31	and	and	CC
37894	560	32	plotted	plot	VBN
37894	560	33	in	in	IN
37894	560	34	red	red	JJ
37894	560	35	pencil	pencil	NN
37894	560	36	with	with	IN
37894	560	37	a	a	DT
37894	560	38	protractor	protractor	NN
37894	560	39	on	on	IN
37894	560	40	the	the	DT
37894	560	41	circular	circular	JJ
37894	560	42	diagrams	diagram	NNS
37894	560	43	of	of	IN
37894	560	44	Figure	figure	NN
37894	560	45	15	15	CD
37894	560	46	.	.	.
37894	561	1	To	to	TO
37894	561	2	avoid	avoid	VB
37894	561	3	confusion	confusion	NN
37894	561	4	in	in	IN
37894	561	5	lines	line	NNS
37894	561	6	,	,	,
37894	561	7	the	the	DT
37894	561	8	zones	zone	NNS
37894	561	9	are	be	VBP
37894	561	10	not	not	RB
37894	561	11	portrayed	portray	VBN
37894	561	12	in	in	IN
37894	561	13	the	the	DT
37894	561	14	black	black	JJ
37894	561	15	and	and	CC
37894	561	16	white	white	JJ
37894	561	17	reproduction	reproduction	NN
37894	561	18	of	of	IN
37894	561	19	the	the	DT
37894	561	20	sample	sample	NN
37894	561	21	plot	plot	NN
37894	561	22	form	form	NN
37894	561	23	.	.	.
37894	562	1	They	-PRON-	PRP
37894	562	2	are	be	VBP
37894	562	3	shown	show	VBN
37894	562	4	,	,	,
37894	562	5	however	however	RB
37894	562	6	,	,	,
37894	562	7	in	in	IN
37894	562	8	the	the	DT
37894	562	9	shaded	shaded	JJ
37894	562	10	enlargement	enlargement	NN
37894	562	11	(	(	-LRB-
37894	562	12	Figure	Figure	NNP
37894	562	13	19	19	CD
37894	562	14	)	)	-RRB-
37894	562	15	of	of	IN
37894	562	16	the	the	DT
37894	562	17	11	11	CD
37894	562	18	to	to	TO
37894	562	19	12	12	CD
37894	562	20	P.	P.	NNP
37894	562	21	M.	M.	NNP
37894	562	22	diagram	diagram	NN
37894	562	23	.	.	.
37894	563	1	The	the	DT
37894	563	2	number	number	NN
37894	563	3	of	of	IN
37894	563	4	birds	bird	NNS
37894	563	5	recorded	record	VBN
37894	563	6	for	for	IN
37894	563	7	each	each	DT
37894	563	8	sector	sector	NN
37894	563	9	may	may	MD
37894	563	10	be	be	VB
37894	563	11	ascertained	ascertain	VBN
37894	563	12	by	by	IN
37894	563	13	counting	count	VBG
37894	563	14	the	the	DT
37894	563	15	number	number	NN
37894	563	16	of	of	IN
37894	563	17	tally	tally	NN
37894	563	18	marks	mark	NNS
37894	563	19	between	between	IN
37894	563	20	each	each	DT
37894	563	21	pair	pair	NN
37894	563	22	of	of	IN
37894	563	23	boundary	boundary	JJ
37894	563	24	lines	line	NNS
37894	563	25	and	and	CC
37894	563	26	the	the	DT
37894	563	27	information	information	NN
37894	563	28	may	may	MD
37894	563	29	be	be	VB
37894	563	30	entered	enter	VBN
37894	563	31	in	in	IN
37894	563	32	the	the	DT
37894	563	33	columns	column	NNS
37894	563	34	provided	provide	VBN
37894	563	35	in	in	IN
37894	563	36	the	the	DT
37894	563	37	plot	plot	NN
37894	563	38	form	form	NN
37894	563	39	(	(	-LRB-
37894	563	40	Figure	Figure	NNP
37894	563	41	15	15	CD
37894	563	42	)	)	-RRB-
37894	563	43	.	.	.
37894	564	1	We	-PRON-	PRP
37894	564	2	are	be	VBP
37894	564	3	now	now	RB
37894	564	4	prepared	prepared	JJ
37894	564	5	to	to	TO
37894	564	6	turn	turn	VB
37894	564	7	to	to	IN
37894	564	8	the	the	DT
37894	564	9	form	form	NN
37894	564	10	for	for	IN
37894	564	11	"	"	``
37894	564	12	Computations	Computations	NNPS
37894	564	13	of	of	IN
37894	564	14	Sector	Sector	NNP
37894	564	15	Densities	Densities	NNPS
37894	564	16	"	"	''
37894	564	17	(	(	-LRB-
37894	564	18	Figure	Figure	NNP
37894	564	19	20	20	CD
37894	564	20	)	)	-RRB-
37894	564	21	,	,	,
37894	564	22	which	which	WDT
37894	564	23	systematizes	systematize	VBZ
37894	564	24	the	the	DT
37894	564	25	solution	solution	NN
37894	564	26	of	of	IN
37894	564	27	the	the	DT
37894	564	28	following	following	JJ
37894	564	29	equation	equation	NN
37894	564	30	:	:	:
37894	564	31	(	(	-LRB-
37894	564	32	220	220	CD
37894	564	33	)	)	-RRB-
37894	564	34	60	60	CD
37894	564	35	/	/	SYM
37894	564	36	T	t	NN
37894	564	37	(	(	-LRB-
37894	564	38	No	no	UH
37894	564	39	.	.	.
37894	565	1	of	of	IN
37894	565	2	Birds	Birds	NNPS
37894	565	3	)	)	-RRB-
37894	565	4	(	(	-LRB-
37894	565	5	cos^2	cos^2	NN
37894	565	6	Z_{0	Z_{0	NNP
37894	565	7	}	}	-RRB-
37894	565	8	)	)	-RRB-
37894	565	9	D	d	NN
37894	565	10	=	=	NFP
37894	565	11	---------------------------------------	---------------------------------------	NFP
37894	565	12	(	(	-LRB-
37894	565	13	2	2	CD
37894	565	14	)	)	-RRB-
37894	565	15	(	(	-LRB-
37894	565	16	1	1	CD
37894	565	17	-	-	HYPH
37894	565	18	sin^2	sin^2	NN
37894	565	19	Z_{0	Z_{0	NNP
37894	565	20	}	}	-RRB-
37894	565	21	cos^2	cos^2	NN
37894	565	22	[	[	-LRB-
37894	565	23	alpha])^0.5	alpha])^0.5	NNP
37894	565	24	[	[	-LRB-
37894	565	25	Illustration	illustration	NN
37894	565	26	:	:	:
37894	565	27	FIG	FIG	NNP
37894	565	28	.	.	.
37894	566	1	22	22	CD
37894	566	2	.	.	.
37894	567	1	Facsimile	facsimile	NN
37894	567	2	of	of	IN
37894	567	3	form	form	NN
37894	567	4	summarizing	summarize	VBG
37894	567	5	sector	sector	NN
37894	567	6	densities	density	NNS
37894	567	7	.	.	.
37894	568	1	The	the	DT
37894	568	2	totals	total	NNS
37894	568	3	at	at	IN
37894	568	4	the	the	DT
37894	568	5	bottom	bottom	NN
37894	568	6	of	of	IN
37894	568	7	each	each	DT
37894	568	8	column	column	NN
37894	568	9	give	give	VB
37894	568	10	the	the	DT
37894	568	11	station	station	NN
37894	568	12	densities	density	NNS
37894	568	13	.	.	.
37894	568	14	]	]	-RRB-
37894	569	1	[	[	-LRB-
37894	569	2	Illustration	illustration	NN
37894	569	3	:	:	:
37894	569	4	FIG	FIG	NNP
37894	569	5	.	.	.
37894	570	1	23	23	CD
37894	570	2	.	.	.
37894	571	1	Determination	Determination	NNP
37894	571	2	of	of	IN
37894	571	3	Net	Net	NNP
37894	571	4	Trend	Trend	NNP
37894	571	5	Density	Density	NNP
37894	571	6	.	.	.
37894	571	7	]	]	-RRB-
37894	572	1	Some	some	DT
37894	572	2	of	of	IN
37894	572	3	the	the	DT
37894	572	4	symbols	symbol	NNS
37894	572	5	and	and	CC
37894	572	6	factors	factor	NNS
37894	572	7	,	,	,
37894	572	8	appearing	appear	VBG
37894	572	9	here	here	RB
37894	572	10	for	for	IN
37894	572	11	the	the	DT
37894	572	12	first	first	JJ
37894	572	13	time	time	NN
37894	572	14	,	,	,
37894	572	15	require	require	VBP
37894	572	16	brief	brief	JJ
37894	572	17	explanation	explanation	NN
37894	572	18	.	.	.
37894	573	1	D	D	NNP
37894	573	2	stands	stand	NNS
37894	573	3	for	for	IN
37894	573	4	Sector	Sector	NNP
37894	573	5	Density	Density	NNP
37894	573	6	.	.	.
37894	574	1	The	the	DT
37894	574	2	constant	constant	JJ
37894	574	3	,	,	,
37894	574	4	220	220	CD
37894	574	5	,	,	,
37894	574	6	is	be	VBZ
37894	574	7	the	the	DT
37894	574	8	reciprocal	reciprocal	JJ
37894	574	9	of	of	IN
37894	574	10	the	the	DT
37894	574	11	quotient	quotient	NN
37894	574	12	of	of	IN
37894	574	13	the	the	DT
37894	574	14	angular	angular	JJ
37894	574	15	diameter	diameter	NN
37894	574	16	of	of	IN
37894	574	17	the	the	DT
37894	574	18	moon	moon	NN
37894	574	19	divided	divide	VBN
37894	574	20	by	by	IN
37894	574	21	2	2	CD
37894	574	22	.	.	.
37894	575	1	T	T	NNP
37894	575	2	is	be	VBZ
37894	575	3	Time	Time	NNP
37894	575	4	In	In	NNP
37894	575	5	,	,	,
37894	575	6	arrived	arrive	VBD
37894	575	7	at	at	IN
37894	575	8	by	by	IN
37894	575	9	subtracting	subtract	VBG
37894	575	10	the	the	DT
37894	575	11	total	total	JJ
37894	575	12	number	number	NN
37894	575	13	of	of	IN
37894	575	14	minutes	minute	NNS
37894	575	15	of	of	IN
37894	575	16	time	time	NN
37894	575	17	out	out	RP
37894	575	18	,	,	,
37894	575	19	as	as	IN
37894	575	20	noted	note	VBN
37894	575	21	for	for	IN
37894	575	22	each	each	DT
37894	575	23	hour	hour	NN
37894	575	24	on	on	IN
37894	575	25	the	the	DT
37894	575	26	original	original	JJ
37894	575	27	data	datum	NNS
37894	575	28	sheets	sheet	NNS
37894	575	29	,	,	,
37894	575	30	from	from	IN
37894	575	31	60	60	CD
37894	575	32	.	.	.
37894	576	1	"	"	``
37894	576	2	No	no	UH
37894	576	3	.	.	.
37894	577	1	of	of	IN
37894	577	2	Birds	Birds	NNPS
37894	577	3	"	"	''
37894	577	4	is	be	VBZ
37894	577	5	the	the	DT
37894	577	6	number	number	NN
37894	577	7	for	for	IN
37894	577	8	the	the	DT
37894	577	9	sector	sector	NN
37894	577	10	and	and	CC
37894	577	11	hour	hour	NN
37894	577	12	in	in	IN
37894	577	13	question	question	NN
37894	577	14	as	as	IN
37894	577	15	just	just	RB
37894	577	16	determined	determine	VBN
37894	577	17	on	on	IN
37894	577	18	the	the	DT
37894	577	19	plot	plot	NN
37894	577	20	form	form	NN
37894	577	21	.	.	.
37894	578	1	The	the	DT
37894	578	2	symbol	symbol	NN
37894	578	3	[	[	-LRB-
37894	578	4	alpha	alpha	NN
37894	578	5	]	]	-RRB-
37894	578	6	represents	represent	VBZ
37894	578	7	the	the	DT
37894	578	8	angle	angle	NN
37894	578	9	between	between	IN
37894	578	10	the	the	DT
37894	578	11	mid	mid	JJ
37894	578	12	-	-	NN
37894	578	13	line	line	NN
37894	578	14	of	of	IN
37894	578	15	the	the	DT
37894	578	16	sector	sector	NN
37894	578	17	and	and	CC
37894	578	18	the	the	DT
37894	578	19	azimuth	azimuth	NN
37894	578	20	line	line	NN
37894	578	21	of	of	IN
37894	578	22	the	the	DT
37894	578	23	moon	moon	NN
37894	578	24	.	.	.
37894	579	1	The	the	DT
37894	579	2	quantity	quantity	NN
37894	579	3	is	be	VBZ
37894	579	4	found	find	VBN
37894	579	5	by	by	IN
37894	579	6	the	the	DT
37894	579	7	equation	equation	NN
37894	579	8	:	:	:
37894	579	9	[	[	-LRB-
37894	579	10	alpha	alpha	NN
37894	579	11	]	]	-RRB-
37894	579	12	=	=	SYM
37894	579	13	180	180	CD
37894	579	14	°	°	NNS
37894	579	15	-	-	,
37894	579	16	[	[	-LRB-
37894	579	17	eta	eta	NNP
37894	579	18	]	]	-RRB-
37894	579	19	+	+	CC
37894	579	20	[	[	-LRB-
37894	579	21	psi]_{0	psi]_{0	NN
37894	579	22	}	}	-RRB-
37894	579	23	(	(	-LRB-
37894	579	24	3	3	LS
37894	579	25	)	)	-RRB-
37894	579	26	The	the	DT
37894	579	27	symbol	symbol	NN
37894	579	28	[	[	-LRB-
37894	579	29	eta	eta	NNP
37894	579	30	]	]	-RRB-
37894	579	31	here	here	RB
37894	579	32	represents	represent	VBZ
37894	579	33	the	the	DT
37894	579	34	position	position	NN
37894	579	35	of	of	IN
37894	579	36	the	the	DT
37894	579	37	mid	mid	JJ
37894	579	38	-	-	NN
37894	579	39	line	line	NN
37894	579	40	of	of	IN
37894	579	41	the	the	DT
37894	579	42	sector	sector	NN
37894	579	43	expressed	express	VBN
37894	579	44	in	in	IN
37894	579	45	terms	term	NNS
37894	579	46	of	of	IN
37894	579	47	its	-PRON-	PRP$
37894	579	48	360	360	CD
37894	579	49	°	°	NNS
37894	579	50	compass	compass	NN
37894	579	51	reading	reading	NN
37894	579	52	.	.	.
37894	580	1	This	this	DT
37894	580	2	equation	equation	NN
37894	580	3	is	be	VBZ
37894	580	4	illustrated	illustrate	VBN
37894	580	5	in	in	IN
37894	580	6	Figure	Figure	NNP
37894	580	7	21	21	CD
37894	580	8	.	.	.
37894	581	1	The	the	DT
37894	581	2	values	value	NNS
37894	581	3	of	of	IN
37894	581	4	[	[	-LRB-
37894	581	5	eta	eta	NNP
37894	581	6	]	]	-RRB-
37894	581	7	for	for	IN
37894	581	8	various	various	JJ
37894	581	9	zones	zone	NNS
37894	581	10	are	be	VBP
37894	581	11	given	give	VBN
37894	581	12	in	in	IN
37894	581	13	the	the	DT
37894	581	14	upper	upper	JJ
37894	581	15	right	right	JJ
37894	581	16	-	-	HYPH
37894	581	17	hand	hand	NN
37894	581	18	corner	corner	NN
37894	581	19	of	of	IN
37894	581	20	the	the	DT
37894	581	21	form	form	NN
37894	581	22	(	(	-LRB-
37894	581	23	Figure	Figure	NNP
37894	581	24	20	20	CD
37894	581	25	)	)	-RRB-
37894	581	26	.	.	.
37894	582	1	The	the	DT
37894	582	2	subsequent	subsequent	JJ
37894	582	3	reductions	reduction	NNS
37894	582	4	of	of	IN
37894	582	5	the	the	DT
37894	582	6	equations	equation	NNS
37894	582	7	,	,	,
37894	582	8	as	as	IN
37894	582	9	they	-PRON-	PRP
37894	582	10	appear	appear	VBP
37894	582	11	in	in	IN
37894	582	12	the	the	DT
37894	582	13	figure	figure	NN
37894	582	14	for	for	IN
37894	582	15	four	four	CD
37894	582	16	zones	zone	NNS
37894	582	17	,	,	,
37894	582	18	are	be	VBP
37894	582	19	self	self	NN
37894	582	20	-	-	HYPH
37894	582	21	explanatory	explanatory	JJ
37894	582	22	.	.	.
37894	583	1	The	the	DT
37894	583	2	end	end	NN
37894	583	3	result	result	NN
37894	583	4	,	,	,
37894	583	5	representing	represent	VBG
37894	583	6	the	the	DT
37894	583	7	sector	sector	NN
37894	583	8	density	density	NN
37894	583	9	,	,	,
37894	583	10	is	be	VBZ
37894	583	11	entered	enter	VBN
37894	583	12	in	in	IN
37894	583	13	the	the	DT
37894	583	14	rectangular	rectangular	JJ
37894	583	15	box	box	NN
37894	583	16	provided	provide	VBN
37894	583	17	.	.	.
37894	584	1	After	after	IN
37894	584	2	all	all	PDT
37894	584	3	the	the	DT
37894	584	4	sector	sector	NN
37894	584	5	densities	density	NNS
37894	584	6	have	have	VBP
37894	584	7	been	be	VBN
37894	584	8	computed	compute	VBN
37894	584	9	,	,	,
37894	584	10	they	-PRON-	PRP
37894	584	11	are	be	VBP
37894	584	12	tabulated	tabulate	VBN
37894	584	13	on	on	IN
37894	584	14	a	a	DT
37894	584	15	form	form	NN
37894	584	16	for	for	IN
37894	584	17	the	the	DT
37894	584	18	"	"	``
37894	584	19	Summary	Summary	NNP
37894	584	20	of	of	IN
37894	584	21	Sector	Sector	NNP
37894	584	22	Densities	Densities	NNPS
37894	584	23	"	"	''
37894	584	24	(	(	-LRB-
37894	584	25	Figure	Figure	NNP
37894	584	26	22	22	CD
37894	584	27	)	)	-RRB-
37894	584	28	.	.	.
37894	585	1	By	by	IN
37894	585	2	totaling	total	VBG
37894	585	3	each	each	DT
37894	585	4	vertical	vertical	JJ
37894	585	5	column	column	NN
37894	585	6	,	,	,
37894	585	7	sums	sum	NNS
37894	585	8	are	be	VBP
37894	585	9	obtained	obtain	VBN
37894	585	10	,	,	,
37894	585	11	expressing	express	VBG
37894	585	12	the	the	DT
37894	585	13	Station	Station	NNP
37894	585	14	Density	Density	NNP
37894	585	15	or	or	CC
37894	585	16	Station	Station	NNP
37894	585	17	Magnitude	Magnitude	NNP
37894	585	18	for	for	IN
37894	585	19	each	each	DT
37894	585	20	hour	hour	NN
37894	585	21	.	.	.
37894	586	1	An	an	DT
37894	586	2	informative	informative	JJ
37894	586	3	way	way	NN
37894	586	4	of	of	IN
37894	586	5	depicting	depict	VBG
37894	586	6	the	the	DT
37894	586	7	densities	density	NNS
37894	586	8	in	in	IN
37894	586	9	each	each	DT
37894	586	10	zone	zone	NN
37894	586	11	is	be	VBZ
37894	586	12	to	to	TO
37894	586	13	plot	plot	VB
37894	586	14	them	-PRON-	PRP
37894	586	15	as	as	IN
37894	586	16	lines	line	NNS
37894	586	17	of	of	IN
37894	586	18	thrust	thrust	NN
37894	586	19	,	,	,
37894	586	20	as	as	IN
37894	586	21	in	in	IN
37894	586	22	Figure	Figure	NNP
37894	586	23	23	23	CD
37894	586	24	.	.	.
37894	587	1	Each	each	DT
37894	587	2	sector	sector	NN
37894	587	3	is	be	VBZ
37894	587	4	represented	represent	VBN
37894	587	5	by	by	IN
37894	587	6	the	the	DT
37894	587	7	directional	directional	JJ
37894	587	8	slant	slant	NN
37894	587	9	of	of	IN
37894	587	10	its	-PRON-	PRP$
37894	587	11	mid	mid	JJ
37894	587	12	-	-	NN
37894	587	13	line	line	NN
37894	587	14	drawn	draw	VBN
37894	587	15	to	to	IN
37894	587	16	a	a	DT
37894	587	17	length	length	NN
37894	587	18	expressing	express	VBG
37894	587	19	the	the	DT
37894	587	20	flight	flight	NN
37894	587	21	density	density	NN
37894	587	22	per	per	IN
37894	587	23	zone	zone	NN
37894	587	24	on	on	IN
37894	587	25	some	some	DT
37894	587	26	chosen	choose	VBN
37894	587	27	scale	scale	NN
37894	587	28	,	,	,
37894	587	29	such	such	JJ
37894	587	30	as	as	IN
37894	587	31	100	100	CD
37894	587	32	birds	bird	NNS
37894	587	33	per	per	IN
37894	587	34	millimeter	millimeter	NN
37894	587	35	.	.	.
37894	588	1	Standard	standard	JJ
37894	588	2	methods	method	NNS
37894	588	3	of	of	IN
37894	588	4	vector	vector	NN
37894	588	5	analysis	analysis	NN
37894	588	6	are	be	VBP
37894	588	7	then	then	RB
37894	588	8	applied	apply	VBN
37894	588	9	to	to	TO
37894	588	10	find	find	VB
37894	588	11	the	the	DT
37894	588	12	vector	vector	NN
37894	588	13	resultant	resultant	NN
37894	588	14	.	.	.
37894	589	1	This	this	DT
37894	589	2	is	be	VBZ
37894	589	3	done	do	VBN
37894	589	4	by	by	IN
37894	589	5	considering	consider	VBG
37894	589	6	the	the	DT
37894	589	7	first	first	JJ
37894	589	8	two	two	CD
37894	589	9	thrust	thrust	JJ
37894	589	10	lines	line	NNS
37894	589	11	as	as	IN
37894	589	12	two	two	CD
37894	589	13	sides	side	NNS
37894	589	14	of	of	IN
37894	589	15	an	an	DT
37894	589	16	imaginary	imaginary	JJ
37894	589	17	parallelogram	parallelogram	NN
37894	589	18	and	and	CC
37894	589	19	using	use	VBG
37894	589	20	a	a	DT
37894	589	21	drawing	draw	VBG
37894	589	22	compass	compass	NN
37894	589	23	to	to	TO
37894	589	24	draw	draw	VB
37894	589	25	intersecting	intersect	VBG
37894	589	26	arcs	arcs	RB
37894	589	27	locating	locate	VBG
37894	589	28	the	the	DT
37894	589	29	position	position	NN
37894	589	30	of	of	IN
37894	589	31	the	the	DT
37894	589	32	missing	miss	VBG
37894	589	33	corner	corner	NN
37894	589	34	.	.	.
37894	590	1	In	in	IN
37894	590	2	the	the	DT
37894	590	3	same	same	JJ
37894	590	4	way	way	NN
37894	590	5	,	,	,
37894	590	6	the	the	DT
37894	590	7	third	third	JJ
37894	590	8	vector	vector	NN
37894	590	9	is	be	VBZ
37894	590	10	combined	combine	VBN
37894	590	11	with	with	IN
37894	590	12	the	the	DT
37894	590	13	invisible	invisible	JJ
37894	590	14	resultant	resultant	NN
37894	590	15	whose	whose	WP$
37894	590	16	distal	distal	JJ
37894	590	17	end	end	NN
37894	590	18	is	be	VBZ
37894	590	19	represented	represent	VBN
37894	590	20	by	by	IN
37894	590	21	the	the	DT
37894	590	22	intersection	intersection	NN
37894	590	23	of	of	IN
37894	590	24	the	the	DT
37894	590	25	first	first	JJ
37894	590	26	two	two	CD
37894	590	27	arcs	arc	NNS
37894	590	28	.	.	.
37894	591	1	The	the	DT
37894	591	2	process	process	NN
37894	591	3	is	be	VBZ
37894	591	4	repeated	repeat	VBN
37894	591	5	successively	successively	RB
37894	591	6	with	with	IN
37894	591	7	each	each	DT
37894	591	8	vector	vector	NN
37894	591	9	until	until	IN
37894	591	10	all	all	DT
37894	591	11	have	have	VBP
37894	591	12	been	be	VBN
37894	591	13	taken	take	VBN
37894	591	14	into	into	IN
37894	591	15	consideration	consideration	NN
37894	591	16	.	.	.
37894	592	1	The	the	DT
37894	592	2	final	final	JJ
37894	592	3	intersection	intersection	NN
37894	592	4	of	of	IN
37894	592	5	arcs	arc	NNS
37894	592	6	defines	define	VBZ
37894	592	7	the	the	DT
37894	592	8	length	length	NN
37894	592	9	and	and	CC
37894	592	10	slant	slant	NN
37894	592	11	of	of	IN
37894	592	12	the	the	DT
37894	592	13	Vector	Vector	NNP
37894	592	14	Resultant	Resultant	NNP
37894	592	15	,	,	,
37894	592	16	whose	whose	WP$
37894	592	17	magnitude	magnitude	NN
37894	592	18	expresses	express	VBZ
37894	592	19	the	the	DT
37894	592	20	Net	Net	NNP
37894	592	21	Trend	Trend	NNP
37894	592	22	Density	Density	NNP
37894	592	23	in	in	IN
37894	592	24	terms	term	NNS
37894	592	25	of	of	IN
37894	592	26	the	the	DT
37894	592	27	original	original	JJ
37894	592	28	scale	scale	NN
37894	592	29	.	.	.
37894	593	1	The	the	DT
37894	593	2	final	final	JJ
37894	593	3	step	step	NN
37894	593	4	in	in	IN
37894	593	5	the	the	DT
37894	593	6	processing	processing	NN
37894	593	7	of	of	IN
37894	593	8	a	a	DT
37894	593	9	set	set	NN
37894	593	10	of	of	IN
37894	593	11	observations	observation	NNS
37894	593	12	is	be	VBZ
37894	593	13	to	to	TO
37894	593	14	plot	plot	VB
37894	593	15	on	on	IN
37894	593	16	graph	graph	NN
37894	593	17	paper	paper	NN
37894	593	18	the	the	DT
37894	593	19	nightly	nightly	JJ
37894	593	20	station	station	NN
37894	593	21	density	density	NN
37894	593	22	curve	curve	NN
37894	593	23	as	as	IN
37894	593	24	illustrated	illustrate	VBN
37894	593	25	by	by	IN
37894	593	26	Figure	Figure	NNP
37894	593	27	24	24	CD
37894	593	28	.	.	.
37894	594	1	[	[	-LRB-
37894	594	2	Illustration	illustration	NN
37894	594	3	:	:	:
37894	594	4	FIG	FIG	NNP
37894	594	5	.	.	.
37894	595	1	24	24	CD
37894	595	2	.	.	.
37894	596	1	Nightly	nightly	JJ
37894	596	2	station	station	NN
37894	596	3	density	density	NN
37894	596	4	curve	curve	NN
37894	596	5	at	at	IN
37894	596	6	Progreso	Progreso	NNP
37894	596	7	,	,	,
37894	596	8	Yucatán	Yucatán	NNP
37894	596	9	,	,	,
37894	596	10	on	on	IN
37894	596	11	April	April	NNP
37894	596	12	24	24	CD
37894	596	13	-	-	SYM
37894	596	14	25	25	CD
37894	596	15	,	,	,
37894	596	16	1948	1948	CD
37894	596	17	.	.	.
37894	596	18	]	]	-RRB-
37894	597	1	PART	PART	NNP
37894	597	2	II	ii	CD
37894	597	3	.	.	.
37894	598	1	THE	the	DT
37894	598	2	NATURE	NATURE	NNP
37894	598	3	OF	of	IN
37894	598	4	NOCTURNAL	NOCTURNAL	NNP
37894	598	5	MIGRATION	MIGRATION	NNP
37894	598	6	Present	present	JJ
37894	598	7	day	day	NN
37894	598	8	concepts	concept	NNS
37894	598	9	of	of	IN
37894	598	10	the	the	DT
37894	598	11	whole	whole	JJ
37894	598	12	broad	broad	JJ
37894	598	13	problem	problem	NN
37894	598	14	of	of	IN
37894	598	15	bird	bird	NN
37894	598	16	migration	migration	NN
37894	598	17	are	be	VBP
37894	598	18	made	make	VBN
37894	598	19	up	up	RP
37894	598	20	of	of	IN
37894	598	21	a	a	DT
37894	598	22	few	few	JJ
37894	598	23	facts	fact	NNS
37894	598	24	and	and	CC
37894	598	25	many	many	JJ
37894	598	26	guesses	guess	NNS
37894	598	27	.	.	.
37894	599	1	The	the	DT
37894	599	2	evolutionary	evolutionary	JJ
37894	599	3	origin	origin	NN
37894	599	4	of	of	IN
37894	599	5	migration	migration	NN
37894	599	6	,	,	,
37894	599	7	the	the	DT
37894	599	8	modern	modern	JJ
37894	599	9	necessities	necessity	NNS
37894	599	10	that	that	WDT
37894	599	11	preserve	preserve	VBP
37894	599	12	its	-PRON-	PRP$
37894	599	13	biologic	biologic	NN
37894	599	14	utility	utility	NN
37894	599	15	,	,	,
37894	599	16	the	the	DT
37894	599	17	physiological	physiological	JJ
37894	599	18	processes	process	NNS
37894	599	19	associated	associate	VBN
37894	599	20	with	with	IN
37894	599	21	it	-PRON-	PRP
37894	599	22	,	,	,
37894	599	23	the	the	DT
37894	599	24	sensory	sensory	JJ
37894	599	25	mechanisms	mechanism	NNS
37894	599	26	that	that	WDT
37894	599	27	make	make	VBP
37894	599	28	it	-PRON-	PRP
37894	599	29	possible	possible	JJ
37894	599	30	,	,	,
37894	599	31	the	the	DT
37894	599	32	speed	speed	NN
37894	599	33	at	at	IN
37894	599	34	which	which	WDT
37894	599	35	it	-PRON-	PRP
37894	599	36	is	be	VBZ
37894	599	37	achieved	achieve	VBN
37894	599	38	,	,	,
37894	599	39	and	and	CC
37894	599	40	the	the	DT
37894	599	41	routes	route	NNS
37894	599	42	followed	follow	VBD
37894	599	43	,	,	,
37894	599	44	all	all	DT
37894	599	45	have	have	VBP
37894	599	46	been	be	VBN
37894	599	47	the	the	DT
37894	599	48	subject	subject	NN
37894	599	49	of	of	IN
37894	599	50	some	some	DT
37894	599	51	investigation	investigation	NN
37894	599	52	and	and	CC
37894	599	53	much	much	JJ
37894	599	54	conjecture	conjecture	NN
37894	599	55	.	.	.
37894	600	1	All	all	DT
37894	600	2	,	,	,
37894	600	3	to	to	IN
37894	600	4	a	a	DT
37894	600	5	greater	great	JJR
37894	600	6	or	or	CC
37894	600	7	less	less	JJR
37894	600	8	extent	extent	NN
37894	600	9	,	,	,
37894	600	10	remain	remain	VBP
37894	600	11	matters	matter	NNS
37894	600	12	of	of	IN
37894	600	13	current	current	JJ
37894	600	14	controversy	controversy	NN
37894	600	15	.	.	.
37894	601	1	All	all	DT
37894	601	2	must	must	MD
37894	601	3	be	be	VB
37894	601	4	considered	consider	VBN
37894	601	5	unknowns	unknown	NNS
37894	601	6	in	in	IN
37894	601	7	every	every	DT
37894	601	8	logical	logical	JJ
37894	601	9	equation	equation	NN
37894	601	10	into	into	IN
37894	601	11	which	which	WDT
37894	601	12	they	-PRON-	PRP
37894	601	13	enter	enter	VBP
37894	601	14	.	.	.
37894	602	1	Since	since	IN
37894	602	2	all	all	DT
37894	602	3	aspects	aspect	NNS
37894	602	4	of	of	IN
37894	602	5	the	the	DT
37894	602	6	subject	subject	NN
37894	602	7	are	be	VBP
37894	602	8	intimately	intimately	RB
37894	602	9	interrelated	interrelate	VBN
37894	602	10	,	,	,
37894	602	11	since	since	IN
37894	602	12	all	all	DT
37894	602	13	have	have	VBP
37894	602	14	a	a	DT
37894	602	15	bearing	bearing	NN
37894	602	16	on	on	IN
37894	602	17	the	the	DT
37894	602	18	probabilities	probability	NNS
37894	602	19	relating	relate	VBG
37894	602	20	to	to	IN
37894	602	21	any	any	DT
37894	602	22	one	one	CD
37894	602	23	,	,	,
37894	602	24	and	and	CC
37894	602	25	since	since	IN
37894	602	26	new	new	JJ
37894	602	27	conjectures	conjecture	NNS
37894	602	28	must	must	MD
37894	602	29	be	be	VB
37894	602	30	judged	judge	VBN
37894	602	31	largely	largely	RB
37894	602	32	in	in	IN
37894	602	33	the	the	DT
37894	602	34	light	light	NN
37894	602	35	of	of	IN
37894	602	36	old	old	JJ
37894	602	37	conjectures	conjecture	NNS
37894	602	38	rather	rather	RB
37894	602	39	than	than	IN
37894	602	40	against	against	IN
37894	602	41	a	a	DT
37894	602	42	background	background	NN
37894	602	43	of	of	IN
37894	602	44	ample	ample	JJ
37894	602	45	facts	fact	NNS
37894	602	46	,	,	,
37894	602	47	the	the	DT
37894	602	48	whole	whole	JJ
37894	602	49	field	field	NN
37894	602	50	is	be	VBZ
37894	602	51	one	one	CD
37894	602	52	in	in	IN
37894	602	53	which	which	WDT
37894	602	54	many	many	JJ
37894	602	55	alternative	alternative	JJ
37894	602	56	explanations	explanation	NNS
37894	602	57	of	of	IN
37894	602	58	the	the	DT
37894	602	59	established	establish	VBN
37894	602	60	phenomena	phenomenon	NNS
37894	602	61	remain	remain	VBP
37894	602	62	equally	equally	RB
37894	602	63	tenable	tenable	JJ
37894	602	64	.	.	.
37894	603	1	Projected	project	VBN
37894	603	2	into	into	IN
37894	603	3	this	this	DT
37894	603	4	uncertain	uncertain	JJ
37894	603	5	atmosphere	atmosphere	NN
37894	603	6	,	,	,
37894	603	7	any	any	DT
37894	603	8	statistical	statistical	JJ
37894	603	9	approach	approach	NN
37894	603	10	such	such	JJ
37894	603	11	as	as	IN
37894	603	12	determinations	determination	NNS
37894	603	13	of	of	IN
37894	603	14	flight	flight	NN
37894	603	15	density	density	NN
37894	603	16	will	will	MD
37894	603	17	require	require	VB
37894	603	18	the	the	DT
37894	603	19	accumulation	accumulation	NN
37894	603	20	of	of	IN
37894	603	21	great	great	JJ
37894	603	22	masses	masse	NNS
37894	603	23	of	of	IN
37894	603	24	data	datum	NNS
37894	603	25	before	before	IN
37894	603	26	it	-PRON-	PRP
37894	603	27	is	be	VBZ
37894	603	28	capable	capable	JJ
37894	603	29	of	of	IN
37894	603	30	yielding	yield	VBG
37894	603	31	truly	truly	RB
37894	603	32	definitive	definitive	JJ
37894	603	33	answers	answer	NNS
37894	603	34	to	to	IN
37894	603	35	those	those	DT
37894	603	36	questions	question	NNS
37894	603	37	that	that	WDT
37894	603	38	it	-PRON-	PRP
37894	603	39	is	be	VBZ
37894	603	40	suited	suited	JJ
37894	603	41	to	to	TO
37894	603	42	solve	solve	VB
37894	603	43	.	.	.
37894	604	1	Yet	yet	RB
37894	604	2	,	,	,
37894	604	3	even	even	RB
37894	604	4	in	in	IN
37894	604	5	their	-PRON-	PRP$
37894	604	6	initial	initial	JJ
37894	604	7	applications	application	NNS
37894	604	8	,	,	,
37894	604	9	density	density	NN
37894	604	10	analyses	analysis	NNS
37894	604	11	can	can	MD
37894	604	12	do	do	VB
37894	604	13	much	much	JJ
37894	604	14	to	to	TO
37894	604	15	bring	bring	VB
37894	604	16	old	old	JJ
37894	604	17	hypotheses	hypothesis	NNS
37894	604	18	regarding	regard	VBG
37894	604	19	nocturnal	nocturnal	JJ
37894	604	20	migration	migration	NN
37894	604	21	into	into	IN
37894	604	22	sharper	sharp	JJR
37894	604	23	definition	definition	NN
37894	604	24	and	and	CC
37894	604	25	to	to	TO
37894	604	26	suggest	suggest	VB
37894	604	27	new	new	JJ
37894	604	28	ones	one	NNS
37894	604	29	.	.	.
37894	605	1	The	the	DT
37894	605	2	number	number	NN
37894	605	3	of	of	IN
37894	605	4	birds	bird	NNS
37894	605	5	recorded	record	VBN
37894	605	6	through	through	IN
37894	605	7	the	the	DT
37894	605	8	telescope	telescope	NN
37894	605	9	at	at	IN
37894	605	10	a	a	DT
37894	605	11	particular	particular	JJ
37894	605	12	station	station	NN
37894	605	13	at	at	IN
37894	605	14	a	a	DT
37894	605	15	particular	particular	JJ
37894	605	16	time	time	NN
37894	605	17	is	be	VBZ
37894	605	18	the	the	DT
37894	605	19	product	product	NN
37894	605	20	of	of	IN
37894	605	21	many	many	JJ
37894	605	22	potential	potential	JJ
37894	605	23	variables	variable	NNS
37894	605	24	.	.	.
37894	606	1	Some	some	DT
37894	606	2	of	of	IN
37894	606	3	these	these	DT
37894	606	4	--	--	:
37894	606	5	like	like	IN
37894	606	6	the	the	DT
37894	606	7	changing	change	VBG
37894	606	8	size	size	NN
37894	606	9	of	of	IN
37894	606	10	the	the	DT
37894	606	11	field	field	NN
37894	606	12	of	of	IN
37894	606	13	observation	observation	NN
37894	606	14	and	and	CC
37894	606	15	the	the	DT
37894	606	16	elevation	elevation	NN
37894	606	17	of	of	IN
37894	606	18	flight	flight	NN
37894	606	19	--	--	:
37894	606	20	pertain	pertain	NN
37894	606	21	solely	solely	RB
37894	606	22	to	to	IN
37894	606	23	the	the	DT
37894	606	24	capacity	capacity	NN
37894	606	25	of	of	IN
37894	606	26	the	the	DT
37894	606	27	observer	observer	NN
37894	606	28	to	to	TO
37894	606	29	see	see	VB
37894	606	30	what	what	WP
37894	606	31	is	be	VBZ
37894	606	32	taking	take	VBG
37894	606	33	place	place	NN
37894	606	34	.	.	.
37894	607	1	It	-PRON-	PRP
37894	607	2	is	be	VBZ
37894	607	3	the	the	DT
37894	607	4	function	function	NN
37894	607	5	of	of	IN
37894	607	6	the	the	DT
37894	607	7	density	density	NN
37894	607	8	and	and	CC
37894	607	9	direction	direction	NN
37894	607	10	formulae	formula	NNS
37894	607	11	to	to	TO
37894	607	12	eliminate	eliminate	VB
37894	607	13	the	the	DT
37894	607	14	influences	influence	NNS
37894	607	15	of	of	IN
37894	607	16	these	these	DT
37894	607	17	two	two	CD
37894	607	18	variables	variable	NNS
37894	607	19	insofar	insofar	RB
37894	607	20	as	as	IN
37894	607	21	is	be	VBZ
37894	607	22	possible	possible	JJ
37894	607	23	,	,	,
37894	607	24	so	so	IN
37894	607	25	that	that	IN
37894	607	26	the	the	DT
37894	607	27	realities	reality	NNS
37894	607	28	of	of	IN
37894	607	29	the	the	DT
37894	607	30	situation	situation	NN
37894	607	31	take	take	VB
37894	607	32	shape	shape	NN
37894	607	33	in	in	IN
37894	607	34	a	a	DT
37894	607	35	nearly	nearly	RB
37894	607	36	statistically	statistically	RB
37894	607	37	true	true	JJ
37894	607	38	form	form	NN
37894	607	39	.	.	.
37894	608	1	There	there	EX
37894	608	2	remain	remain	VBP
37894	608	3	to	to	TO
37894	608	4	be	be	VB
37894	608	5	considered	consider	VBN
37894	608	6	those	those	DT
37894	608	7	influences	influence	NNS
37894	608	8	potentially	potentially	RB
37894	608	9	responsible	responsible	JJ
37894	608	10	for	for	IN
37894	608	11	variations	variation	NNS
37894	608	12	in	in	IN
37894	608	13	the	the	DT
37894	608	14	real	real	JJ
37894	608	15	volume	volume	NN
37894	608	16	of	of	IN
37894	608	17	migration	migration	NN
37894	608	18	at	at	IN
37894	608	19	different	different	JJ
37894	608	20	times	time	NNS
37894	608	21	and	and	CC
37894	608	22	places	place	NNS
37894	608	23	--	--	:
37894	608	24	things	thing	NNS
37894	608	25	like	like	IN
37894	608	26	the	the	DT
37894	608	27	advance	advance	NN
37894	608	28	of	of	IN
37894	608	29	season	season	NN
37894	608	30	,	,	,
37894	608	31	geographic	geographic	JJ
37894	608	32	location	location	NN
37894	608	33	,	,	,
37894	608	34	disposition	disposition	NN
37894	608	35	of	of	IN
37894	608	36	terrain	terrain	NN
37894	608	37	features	feature	NNS
37894	608	38	,	,	,
37894	608	39	hourly	hourly	JJ
37894	608	40	activity	activity	NN
37894	608	41	rhythm	rhythm	NN
37894	608	42	,	,	,
37894	608	43	wind	wind	NN
37894	608	44	currents	current	NNS
37894	608	45	,	,	,
37894	608	46	and	and	CC
37894	608	47	other	other	JJ
37894	608	48	climatological	climatological	JJ
37894	608	49	causes	cause	NNS
37894	608	50	.	.	.
37894	609	1	The	the	DT
37894	609	2	situation	situation	NN
37894	609	3	represented	represent	VBN
37894	609	4	by	by	IN
37894	609	5	any	any	DT
37894	609	6	set	set	NN
37894	609	7	of	of	IN
37894	609	8	observations	observation	NNS
37894	609	9	probably	probably	RB
37894	609	10	is	be	VBZ
37894	609	11	the	the	DT
37894	609	12	end	end	NN
37894	609	13	result	result	NN
37894	609	14	of	of	IN
37894	609	15	the	the	DT
37894	609	16	interaction	interaction	NN
37894	609	17	of	of	IN
37894	609	18	several	several	JJ
37894	609	19	such	such	JJ
37894	609	20	factors	factor	NNS
37894	609	21	.	.	.
37894	610	1	It	-PRON-	PRP
37894	610	2	is	be	VBZ
37894	610	3	the	the	DT
37894	610	4	task	task	NN
37894	610	5	of	of	IN
37894	610	6	the	the	DT
37894	610	7	discussions	discussion	NNS
37894	610	8	that	that	WDT
37894	610	9	follow	follow	VBP
37894	610	10	to	to	TO
37894	610	11	analyze	analyze	VB
37894	610	12	flight	flight	NN
37894	610	13	densities	density	NNS
37894	610	14	in	in	IN
37894	610	15	the	the	DT
37894	610	16	light	light	NN
37894	610	17	of	of	IN
37894	610	18	the	the	DT
37894	610	19	circumstances	circumstance	NNS
37894	610	20	surrounding	surround	VBG
37894	610	21	them	-PRON-	PRP
37894	610	22	and	and	CC
37894	610	23	by	by	IN
37894	610	24	statistical	statistical	JJ
37894	610	25	insight	insight	NN
37894	610	26	to	to	TO
37894	610	27	isolate	isolate	VB
37894	610	28	the	the	DT
37894	610	29	effects	effect	NNS
37894	610	30	of	of	IN
37894	610	31	single	single	JJ
37894	610	32	factors	factor	NNS
37894	610	33	.	.	.
37894	611	1	When	when	WRB
37894	611	2	this	this	DT
37894	611	3	has	have	VBZ
37894	611	4	been	be	VBN
37894	611	5	done	do	VBN
37894	611	6	,	,	,
37894	611	7	we	-PRON-	PRP
37894	611	8	shall	shall	MD
37894	611	9	be	be	VB
37894	611	10	brought	bring	VBN
37894	611	11	closer	close	RBR
37894	611	12	to	to	IN
37894	611	13	an	an	DT
37894	611	14	understanding	understanding	NN
37894	611	15	of	of	IN
37894	611	16	these	these	DT
37894	611	17	influences	influence	NNS
37894	611	18	themselves	-PRON-	PRP
37894	611	19	as	as	IN
37894	611	20	they	-PRON-	PRP
37894	611	21	apply	apply	VBP
37894	611	22	to	to	IN
37894	611	23	the	the	DT
37894	611	24	seasonal	seasonal	JJ
37894	611	25	movements	movement	NNS
37894	611	26	of	of	IN
37894	611	27	birds	bird	NNS
37894	611	28	.	.	.
37894	612	1	Out	out	IN
37894	612	2	of	of	IN
37894	612	3	data	datum	NNS
37894	612	4	that	that	WDT
37894	612	5	is	be	VBZ
37894	612	6	essentially	essentially	RB
37894	612	7	quantitative	quantitative	JJ
37894	612	8	,	,	,
37894	612	9	conclusions	conclusion	NNS
37894	612	10	of	of	IN
37894	612	11	a	a	DT
37894	612	12	qualitative	qualitative	JJ
37894	612	13	nature	nature	NN
37894	612	14	will	will	MD
37894	612	15	begin	begin	VB
37894	612	16	to	to	TO
37894	612	17	take	take	VB
37894	612	18	form	form	NN
37894	612	19	.	.	.
37894	613	1	It	-PRON-	PRP
37894	613	2	should	should	MD
37894	613	3	be	be	VB
37894	613	4	constantly	constantly	RB
37894	613	5	borne	bear	VBN
37894	613	6	in	in	IN
37894	613	7	mind	mind	NN
37894	613	8	,	,	,
37894	613	9	however	however	RB
37894	613	10	,	,	,
37894	613	11	that	that	IN
37894	613	12	such	such	JJ
37894	613	13	conclusions	conclusion	NNS
37894	613	14	relate	relate	VBP
37894	613	15	to	to	IN
37894	613	16	the	the	DT
37894	613	17	movement	movement	NN
37894	613	18	of	of	IN
37894	613	19	birds	birds	NNPS
37894	613	20	_	_	NNP
37894	613	21	en	en	IN
37894	613	22	masse+	masse+	NN
37894	613	23	and	and	CC
37894	613	24	that	that	IN
37894	613	25	caution	caution	NN
37894	613	26	must	must	MD
37894	613	27	be	be	VB
37894	613	28	used	use	VBN
37894	613	29	in	in	IN
37894	613	30	applying	apply	VBG
37894	613	31	these	these	DT
37894	613	32	conclusions	conclusion	NNS
37894	613	33	to	to	IN
37894	613	34	any	any	DT
37894	613	35	one	one	CD
37894	613	36	species	species	NN
37894	613	37	.	.	.
37894	614	1	Since	since	IN
37894	614	2	the	the	DT
37894	614	3	dispersal	dispersal	NN
37894	614	4	of	of	IN
37894	614	5	migrants	migrant	NNS
37894	614	6	in	in	IN
37894	614	7	the	the	DT
37894	614	8	night	night	NN
37894	614	9	sky	sky	NN
37894	614	10	has	have	VBZ
37894	614	11	a	a	DT
37894	614	12	fundamental	fundamental	JJ
37894	614	13	bearing	bearing	NN
37894	614	14	on	on	IN
37894	614	15	the	the	DT
37894	614	16	sampling	sampling	NN
37894	614	17	procedure	procedure	NN
37894	614	18	itself	-PRON-	PRP
37894	614	19	,	,	,
37894	614	20	and	and	CC
37894	614	21	therefore	therefore	RB
37894	614	22	on	on	IN
37894	614	23	the	the	DT
37894	614	24	reliability	reliability	NN
37894	614	25	of	of	IN
37894	614	26	figures	figure	NNS
37894	614	27	on	on	IN
37894	614	28	flight	flight	NN
37894	614	29	density	density	NN
37894	614	30	,	,	,
37894	614	31	consideration	consideration	NN
37894	614	32	can	can	MD
37894	614	33	well	well	RB
37894	614	34	be	be	VB
37894	614	35	given	give	VBN
37894	614	36	first	first	RB
37894	614	37	to	to	IN
37894	614	38	the	the	DT
37894	614	39	horizontal	horizontal	JJ
37894	614	40	distribution	distribution	NN
37894	614	41	of	of	IN
37894	614	42	birds	bird	NNS
37894	614	43	on	on	IN
37894	614	44	narrow	narrow	JJ
37894	614	45	fronts	front	NNS
37894	614	46	.	.	.
37894	615	1	A.	a.	JJ
37894	615	2	HORIZONTAL	horizontal	NN
37894	615	3	DISTRIBUTION	distribution	NN
37894	615	4	OF	of	IN
37894	615	5	BIRDS	bird	NNS
37894	615	6	ON	on	IN
37894	615	7	NARROW	NARROW	NNP
37894	615	8	FRONTS	FRONTS	NNP
37894	615	9	Bird	Bird	NNP
37894	615	10	migration	migration	NN
37894	615	11	,	,	,
37894	615	12	as	as	IN
37894	615	13	we	-PRON-	PRP
37894	615	14	know	know	VBP
37894	615	15	it	-PRON-	PRP
37894	615	16	in	in	IN
37894	615	17	daytime	daytime	NN
37894	615	18	,	,	,
37894	615	19	is	be	VBZ
37894	615	20	characterized	characterize	VBN
37894	615	21	by	by	IN
37894	615	22	spurts	spurt	NNS
37894	615	23	and	and	CC
37894	615	24	uneven	uneven	JJ
37894	615	25	spatial	spatial	JJ
37894	615	26	patterns	pattern	NNS
37894	615	27	.	.	.
37894	616	1	Widely	widely	RB
37894	616	2	separated	separate	VBN
37894	616	3	V	V	NNP
37894	616	4	's	's	POS
37894	616	5	of	of	IN
37894	616	6	geese	geese	JJ
37894	616	7	go	go	VBP
37894	616	8	honking	honking	NN
37894	616	9	by	by	RB
37894	616	10	.	.	.
37894	617	1	Blackbirds	blackbird	NNS
37894	617	2	pass	pass	VBP
37894	617	3	in	in	IN
37894	617	4	dense	dense	JJ
37894	617	5	recurrent	recurrent	JJ
37894	617	6	clouds	cloud	NNS
37894	617	7	,	,	,
37894	617	8	now	now	RB
37894	617	9	on	on	IN
37894	617	10	one	one	CD
37894	617	11	side	side	NN
37894	617	12	of	of	IN
37894	617	13	the	the	DT
37894	617	14	observer	observer	NN
37894	617	15	,	,	,
37894	617	16	now	now	RB
37894	617	17	on	on	IN
37894	617	18	the	the	DT
37894	617	19	other	other	JJ
37894	617	20	.	.	.
37894	618	1	Hawks	hawk	NNS
37894	618	2	ride	ride	VBP
37894	618	3	along	along	IN
37894	618	4	in	in	IN
37894	618	5	narrow	narrow	JJ
37894	618	6	file	file	NN
37894	618	7	down	down	IN
37894	618	8	the	the	DT
37894	618	9	thermal	thermal	JJ
37894	618	10	currents	current	NNS
37894	618	11	of	of	IN
37894	618	12	the	the	DT
37894	618	13	ridges	ridge	NNS
37894	618	14	.	.	.
37894	619	1	Herons	heron	NNS
37894	619	2	,	,	,
37894	619	3	in	in	IN
37894	619	4	companies	company	NNS
37894	619	5	of	of	IN
37894	619	6	five	five	CD
37894	619	7	to	to	TO
37894	619	8	fifty	fifty	CD
37894	619	9	,	,	,
37894	619	10	beat	beat	VB
37894	619	11	their	-PRON-	PRP$
37894	619	12	way	way	NN
37894	619	13	slowly	slowly	RB
37894	619	14	along	along	IN
37894	619	15	the	the	DT
37894	619	16	line	line	NN
37894	619	17	of	of	IN
37894	619	18	the	the	DT
37894	619	19	surf	surf	NN
37894	619	20	.	.	.
37894	620	1	And	and	CC
37894	620	2	an	an	DT
37894	620	3	unending	unending	JJ
37894	620	4	stream	stream	NN
37894	620	5	of	of	IN
37894	620	6	swallows	swallow	NNS
37894	620	7	courses	course	NNS
37894	620	8	low	low	RB
37894	620	9	along	along	IN
37894	620	10	the	the	DT
37894	620	11	levees	levee	NNS
37894	620	12	.	.	.
37894	621	1	Everywhere	everywhere	RB
37894	621	2	the	the	DT
37894	621	3	impression	impression	NN
37894	621	4	is	be	VBZ
37894	621	5	one	one	CD
37894	621	6	of	of	IN
37894	621	7	birds	bird	NNS
37894	621	8	in	in	IN
37894	621	9	bunches	bunche	NNS
37894	621	10	,	,	,
37894	621	11	with	with	IN
37894	621	12	vast	vast	JJ
37894	621	13	spaces	space	NNS
37894	621	14	of	of	IN
37894	621	15	empty	empty	JJ
37894	621	16	sky	sky	NN
37894	621	17	between	between	IN
37894	621	18	.	.	.
37894	622	1	Such	such	PDT
37894	622	2	a	a	DT
37894	622	3	situation	situation	NN
37894	622	4	is	be	VBZ
37894	622	5	ill	ill	RB
37894	622	6	-	-	HYPH
37894	622	7	suited	suit	VBN
37894	622	8	to	to	IN
37894	622	9	the	the	DT
37894	622	10	sort	sort	NN
37894	622	11	of	of	IN
37894	622	12	sampling	sample	VBG
37894	622	13	procedure	procedure	NN
37894	622	14	on	on	IN
37894	622	15	which	which	WDT
37894	622	16	flight	flight	NN
37894	622	17	density	density	NN
37894	622	18	computations	computation	NNS
37894	622	19	are	be	VBP
37894	622	20	based	base	VBN
37894	622	21	.	.	.
37894	623	1	If	if	IN
37894	623	2	birds	bird	NNS
37894	623	3	always	always	RB
37894	623	4	traveled	travel	VBD
37894	623	5	in	in	IN
37894	623	6	widely	widely	RB
37894	623	7	separated	separate	VBN
37894	623	8	flocks	flock	NNS
37894	623	9	,	,	,
37894	623	10	many	many	JJ
37894	623	11	such	such	JJ
37894	623	12	flocks	flock	NNS
37894	623	13	might	may	MD
37894	623	14	pass	pass	VB
37894	623	15	near	near	IN
37894	623	16	the	the	DT
37894	623	17	cone	cone	NN
37894	623	18	of	of	IN
37894	623	19	observation	observation	NN
37894	623	20	and	and	CC
37894	623	21	still	still	RB
37894	623	22	,	,	,
37894	623	23	by	by	IN
37894	623	24	simple	simple	JJ
37894	623	25	chance	chance	NN
37894	623	26	,	,	,
37894	623	27	fail	fail	VB
37894	623	28	to	to	TO
37894	623	29	enter	enter	VB
37894	623	30	the	the	DT
37894	623	31	sliver	sliver	NN
37894	623	32	of	of	IN
37894	623	33	space	space	NN
37894	623	34	where	where	WRB
37894	623	35	they	-PRON-	PRP
37894	623	36	could	could	MD
37894	623	37	be	be	VB
37894	623	38	seen	see	VBN
37894	623	39	.	.	.
37894	624	1	Chance	chance	NN
37894	624	2	would	would	MD
37894	624	3	be	be	VB
37894	624	4	the	the	DT
37894	624	5	dominating	dominate	VBG
37894	624	6	factor	factor	NN
37894	624	7	in	in	IN
37894	624	8	the	the	DT
37894	624	9	number	number	NN
37894	624	10	of	of	IN
37894	624	11	birds	bird	NNS
37894	624	12	recorded	record	VBN
37894	624	13	,	,	,
37894	624	14	obscuring	obscure	VBG
37894	624	15	the	the	DT
37894	624	16	effects	effect	NNS
37894	624	17	of	of	IN
37894	624	18	other	other	JJ
37894	624	19	influences	influence	NNS
37894	624	20	.	.	.
37894	625	1	Birds	bird	NNS
37894	625	2	would	would	MD
37894	625	3	seldom	seldom	RB
37894	625	4	be	be	VB
37894	625	5	seen	see	VBN
37894	625	6	,	,	,
37894	625	7	but	but	CC
37894	625	8	,	,	,
37894	625	9	when	when	WRB
37894	625	10	they	-PRON-	PRP
37894	625	11	did	do	VBD
37894	625	12	appear	appear	VB
37894	625	13	,	,	,
37894	625	14	a	a	DT
37894	625	15	great	great	JJ
37894	625	16	many	many	JJ
37894	625	17	would	would	MD
37894	625	18	be	be	VB
37894	625	19	observed	observe	VBN
37894	625	20	simultaneously	simultaneously	RB
37894	625	21	or	or	CC
37894	625	22	in	in	IN
37894	625	23	rapid	rapid	JJ
37894	625	24	succession	succession	NN
37894	625	25	.	.	.
37894	626	1	When	when	WRB
37894	626	2	these	these	DT
37894	626	3	telescopic	telescopic	JJ
37894	626	4	studies	study	NNS
37894	626	5	were	be	VBD
37894	626	6	first	first	RB
37894	626	7	undertaken	undertake	VBN
37894	626	8	at	at	IN
37894	626	9	Baton	Baton	NNP
37894	626	10	Rouge	Rouge	NNP
37894	626	11	in	in	IN
37894	626	12	1945	1945	CD
37894	626	13	,	,	,
37894	626	14	some	some	DT
37894	626	15	assurance	assurance	NN
37894	626	16	already	already	RB
37894	626	17	existed	exist	VBD
37894	626	18	,	,	,
37894	626	19	however	however	RB
37894	626	20	,	,	,
37894	626	21	that	that	DT
37894	626	22	night	night	NN
37894	626	23	migrants	migrant	NNS
37894	626	24	might	may	MD
37894	626	25	be	be	VB
37894	626	26	so	so	RB
37894	626	27	generally	generally	RB
37894	626	28	dispersed	disperse	VBN
37894	626	29	horizontally	horizontally	RB
37894	626	30	in	in	IN
37894	626	31	the	the	DT
37894	626	32	darkness	darkness	NN
37894	626	33	above	above	IN
37894	626	34	that	that	IN
37894	626	35	the	the	DT
37894	626	36	number	number	NN
37894	626	37	passing	pass	VBG
37894	626	38	through	through	IN
37894	626	39	the	the	DT
37894	626	40	small	small	JJ
37894	626	41	segment	segment	NN
37894	626	42	of	of	IN
37894	626	43	sky	sky	NN
37894	626	44	where	where	WRB
37894	626	45	they	-PRON-	PRP
37894	626	46	could	could	MD
37894	626	47	be	be	VB
37894	626	48	counted	count	VBN
37894	626	49	would	would	MD
37894	626	50	furnish	furnish	VB
37894	626	51	a	a	DT
37894	626	52	nearly	nearly	RB
37894	626	53	proportionate	proportionate	JJ
37894	626	54	sample	sample	NN
37894	626	55	of	of	IN
37894	626	56	the	the	DT
37894	626	57	total	total	JJ
37894	626	58	number	number	NN
37894	626	59	passing	pass	VBG
37894	626	60	in	in	IN
37894	626	61	the	the	DT
37894	626	62	neighborhood	neighborhood	NN
37894	626	63	of	of	IN
37894	626	64	the	the	DT
37894	626	65	observation	observation	NN
37894	626	66	station	station	NN
37894	626	67	.	.	.
37894	627	1	This	this	DT
37894	627	2	assurance	assurance	NN
37894	627	3	was	be	VBD
37894	627	4	provided	provide	VBN
37894	627	5	by	by	IN
37894	627	6	the	the	DT
37894	627	7	very	very	RB
37894	627	8	interesting	interesting	JJ
37894	627	9	account	account	NN
37894	627	10	of	of	IN
37894	627	11	Stone	Stone	NNP
37894	627	12	(	(	-LRB-
37894	627	13	1906	1906	CD
37894	627	14	:	:	:
37894	627	15	249	249	CD
37894	627	16	-	-	SYM
37894	627	17	252	252	CD
37894	627	18	)	)	-RRB-
37894	627	19	,	,	,
37894	627	20	who	who	WP
37894	627	21	enjoyed	enjoy	VBD
37894	627	22	the	the	DT
37894	627	23	unique	unique	JJ
37894	627	24	experience	experience	NN
37894	627	25	of	of	IN
37894	627	26	viewing	view	VBG
37894	627	27	a	a	DT
37894	627	28	nocturnal	nocturnal	JJ
37894	627	29	flight	flight	NN
37894	627	30	as	as	IN
37894	627	31	a	a	DT
37894	627	32	whole	whole	NN
37894	627	33	.	.	.
37894	628	1	On	on	IN
37894	628	2	the	the	DT
37894	628	3	night	night	NN
37894	628	4	of	of	IN
37894	628	5	March	March	NNP
37894	628	6	27	27	CD
37894	628	7	,	,	,
37894	628	8	1906	1906	CD
37894	628	9	,	,	,
37894	628	10	a	a	DT
37894	628	11	great	great	JJ
37894	628	12	conflagration	conflagration	NN
37894	628	13	occurred	occur	VBD
37894	628	14	in	in	IN
37894	628	15	Philadelphia	Philadelphia	NNP
37894	628	16	,	,	,
37894	628	17	illuminating	illuminate	VBG
37894	628	18	the	the	DT
37894	628	19	sky	sky	NN
37894	628	20	for	for	IN
37894	628	21	a	a	DT
37894	628	22	great	great	JJ
37894	628	23	distance	distance	NN
37894	628	24	and	and	CC
37894	628	25	causing	cause	VBG
37894	628	26	the	the	DT
37894	628	27	birds	bird	NNS
37894	628	28	overhead	overhead	RB
37894	628	29	to	to	TO
37894	628	30	stand	stand	VB
37894	628	31	out	out	RP
37894	628	32	clearly	clearly	RB
37894	628	33	as	as	IN
37894	628	34	their	-PRON-	PRP$
37894	628	35	bodies	body	NNS
37894	628	36	reflected	reflect	VBD
37894	628	37	the	the	DT
37894	628	38	light	light	NN
37894	628	39	.	.	.
37894	629	1	Early	early	RB
37894	629	2	in	in	IN
37894	629	3	the	the	DT
37894	629	4	night	night	NN
37894	629	5	few	few	JJ
37894	629	6	birds	bird	NNS
37894	629	7	were	be	VBD
37894	629	8	seen	see	VBN
37894	629	9	in	in	IN
37894	629	10	the	the	DT
37894	629	11	sky	sky	NN
37894	629	12	,	,	,
37894	629	13	but	but	CC
37894	629	14	thereafter	thereafter	RB
37894	629	15	they	-PRON-	PRP
37894	629	16	began	begin	VBD
37894	629	17	to	to	TO
37894	629	18	come	come	VB
37894	629	19	in	in	IN
37894	629	20	numbers	number	NNS
37894	629	21	,	,	,
37894	629	22	passing	pass	VBG
37894	629	23	steadily	steadily	RB
37894	629	24	from	from	IN
37894	629	25	the	the	DT
37894	629	26	southwest	southwest	NN
37894	629	27	to	to	IN
37894	629	28	the	the	DT
37894	629	29	northeast	northeast	NN
37894	629	30	.	.	.
37894	630	1	At	at	IN
37894	630	2	ten	ten	CD
37894	630	3	o'clock	o'clock	NN
37894	630	4	the	the	DT
37894	630	5	flight	flight	NN
37894	630	6	was	be	VBD
37894	630	7	at	at	IN
37894	630	8	its	-PRON-	PRP$
37894	630	9	height	height	NN
37894	630	10	.	.	.
37894	631	1	The	the	DT
37894	631	2	observer	observer	NN
37894	631	3	stated	state	VBD
37894	631	4	that	that	IN
37894	631	5	two	two	CD
37894	631	6	hundred	hundred	CD
37894	631	7	birds	bird	NNS
37894	631	8	were	be	VBD
37894	631	9	in	in	IN
37894	631	10	sight	sight	NN
37894	631	11	at	at	IN
37894	631	12	any	any	DT
37894	631	13	given	given	JJ
37894	631	14	moment	moment	NN
37894	631	15	as	as	IN
37894	631	16	he	-PRON-	PRP
37894	631	17	faced	face	VBD
37894	631	18	the	the	DT
37894	631	19	direction	direction	NN
37894	631	20	from	from	IN
37894	631	21	which	which	WDT
37894	631	22	they	-PRON-	PRP
37894	631	23	came	come	VBD
37894	631	24	.	.	.
37894	632	1	This	this	DT
37894	632	2	unparalleled	unparalleled	JJ
37894	632	3	observation	observation	NN
37894	632	4	is	be	VBZ
37894	632	5	of	of	IN
37894	632	6	such	such	JJ
37894	632	7	great	great	JJ
37894	632	8	importance	importance	NN
37894	632	9	that	that	WDT
37894	632	10	I	-PRON-	PRP
37894	632	11	quote	quote	VBP
37894	632	12	it	-PRON-	PRP
37894	632	13	in	in	IN
37894	632	14	part	part	NN
37894	632	15	,	,	,
37894	632	16	as	as	IN
37894	632	17	follows	follow	VBZ
37894	632	18	:	:	:
37894	632	19	"	"	``
37894	632	20	They	-PRON-	PRP
37894	632	21	[	[	-LRB-
37894	632	22	the	the	DT
37894	632	23	birds	bird	NNS
37894	632	24	]	]	-RRB-
37894	632	25	flew	fly	VBD
37894	632	26	in	in	IN
37894	632	27	a	a	DT
37894	632	28	great	great	JJ
37894	632	29	scattered	scatter	VBN
37894	632	30	,	,	,
37894	632	31	wide	wide	JJ
37894	632	32	-	-	HYPH
37894	632	33	spread	spread	NN
37894	632	34	host	host	NN
37894	632	35	,	,	,
37894	632	36	never	never	RB
37894	632	37	in	in	IN
37894	632	38	clusters	cluster	NNS
37894	632	39	,	,	,
37894	632	40	each	each	DT
37894	632	41	bird	bird	NN
37894	632	42	advancing	advance	VBG
37894	632	43	in	in	IN
37894	632	44	a	a	DT
37894	632	45	somewhat	somewhat	RB
37894	632	46	zigzag	zigzag	NN
37894	632	47	manner	manner	NN
37894	632	48	....	....	.
37894	632	49	Far	far	RB
37894	632	50	off	off	RB
37894	632	51	in	in	IN
37894	632	52	front	front	NN
37894	632	53	of	of	IN
37894	632	54	me	-PRON-	PRP
37894	632	55	I	-PRON-	PRP
37894	632	56	could	could	MD
37894	632	57	see	see	VB
37894	632	58	them	-PRON-	PRP
37894	632	59	coming	come	VBG
37894	632	60	as	as	IN
37894	632	61	mere	mere	JJ
37894	632	62	specks	speck	NNS
37894	632	63	...	...	:
37894	632	64	gradually	gradually	RB
37894	632	65	growing	grow	VBG
37894	632	66	larger	large	JJR
37894	632	67	as	as	IN
37894	632	68	they	-PRON-	PRP
37894	632	69	approached	approach	VBD
37894	632	70	....	....	.
37894	632	71	Over	over	IN
37894	632	72	the	the	DT
37894	632	73	illuminated	illuminate	VBN
37894	632	74	area	area	NN
37894	632	75	,	,	,
37894	632	76	and	and	CC
37894	632	77	doubtless	doubtless	RB
37894	632	78	for	for	IN
37894	632	79	great	great	JJ
37894	632	80	distances	distance	NNS
37894	632	81	beyond	beyond	IN
37894	632	82	,	,	,
37894	632	83	they	-PRON-	PRP
37894	632	84	seemed	seem	VBD
37894	632	85	about	about	IN
37894	632	86	evenly	evenly	RB
37894	632	87	distributed	distribute	VBN
37894	632	88	....	....	.
37894	633	1	I	-PRON-	PRP
37894	633	2	am	be	VBP
37894	633	3	inclined	inclined	JJ
37894	633	4	to	to	TO
37894	633	5	think	think	VB
37894	633	6	that	that	IN
37894	633	7	the	the	DT
37894	633	8	migrants	migrant	NNS
37894	633	9	were	be	VBD
37894	633	10	not	not	RB
37894	633	11	influenced	influence	VBN
37894	633	12	by	by	IN
37894	633	13	the	the	DT
37894	633	14	fire	fire	NN
37894	633	15	,	,	,
37894	633	16	so	so	RB
37894	633	17	far	far	RB
37894	633	18	as	as	IN
37894	633	19	their	-PRON-	PRP$
37894	633	20	flight	flight	NN
37894	633	21	was	be	VBD
37894	633	22	concerned	concern	VBN
37894	633	23	,	,	,
37894	633	24	as	as	IN
37894	633	25	those	those	DT
37894	633	26	far	far	RB
37894	633	27	to	to	IN
37894	633	28	the	the	DT
37894	633	29	right	right	NN
37894	633	30	were	be	VBD
37894	633	31	not	not	RB
37894	633	32	coming	come	VBG
37894	633	33	toward	toward	IN
37894	633	34	the	the	DT
37894	633	35	blaze	blaze	NN
37894	633	36	but	but	CC
37894	633	37	keeping	keep	VBG
37894	633	38	steadily	steadily	RB
37894	633	39	on	on	IN
37894	633	40	their	-PRON-	PRP$
37894	633	41	way	way	NN
37894	633	42	....	....	.
37894	633	43	Up	up	IN
37894	633	44	to	to	TO
37894	633	45	eleven	eleven	CD
37894	633	46	o'clock	o'clock	NN
37894	633	47	,	,	,
37894	633	48	when	when	WRB
37894	633	49	my	-PRON-	PRP$
37894	633	50	observations	observation	NNS
37894	633	51	ceased	cease	VBD
37894	633	52	,	,	,
37894	633	53	it	-PRON-	PRP
37894	633	54	[	[	-LRB-
37894	633	55	the	the	DT
37894	633	56	flight	flight	NN
37894	633	57	]	]	-RRB-
37894	633	58	continued	continue	VBN
37894	633	59	apparently	apparently	RB
37894	633	60	without	without	IN
37894	633	61	abatement	abatement	NN
37894	633	62	,	,	,
37894	633	63	and	and	CC
37894	633	64	I	-PRON-	PRP
37894	633	65	am	be	VBP
37894	633	66	informed	inform	VBN
37894	633	67	that	that	IN
37894	633	68	it	-PRON-	PRP
37894	633	69	was	be	VBD
37894	633	70	still	still	RB
37894	633	71	in	in	IN
37894	633	72	progress	progress	NN
37894	633	73	at	at	IN
37894	633	74	midnight	midnight	NN
37894	633	75	.	.	.
37894	633	76	"	"	''
37894	634	1	Similarly	similarly	RB
37894	634	2	,	,	,
37894	634	3	in	in	IN
37894	634	4	rather	rather	RB
37894	634	5	rare	rare	JJ
37894	634	6	instances	instance	NNS
37894	634	7	in	in	IN
37894	634	8	the	the	DT
37894	634	9	course	course	NN
37894	634	10	of	of	IN
37894	634	11	the	the	DT
37894	634	12	present	present	JJ
37894	634	13	study	study	NN
37894	634	14	,	,	,
37894	634	15	the	the	DT
37894	634	16	combination	combination	NN
37894	634	17	of	of	IN
37894	634	18	special	special	JJ
37894	634	19	cloud	cloud	NN
37894	634	20	formations	formation	NNS
37894	634	21	and	and	CC
37894	634	22	certain	certain	JJ
37894	634	23	atmospheric	atmospheric	JJ
37894	634	24	conditions	condition	NNS
37894	634	25	has	have	VBZ
37894	634	26	made	make	VBN
37894	634	27	it	-PRON-	PRP
37894	634	28	possible	possible	JJ
37894	634	29	to	to	TO
37894	634	30	see	see	VB
37894	634	31	birds	bird	NNS
37894	634	32	across	across	IN
37894	634	33	the	the	DT
37894	634	34	entire	entire	JJ
37894	634	35	field	field	NN
37894	634	36	of	of	IN
37894	634	37	the	the	DT
37894	634	38	telescope	telescope	NN
37894	634	39	,	,	,
37894	634	40	whether	whether	IN
37894	634	41	they	-PRON-	PRP
37894	634	42	actually	actually	RB
37894	634	43	passed	pass	VBD
37894	634	44	before	before	IN
37894	634	45	the	the	DT
37894	634	46	moon	moon	NN
37894	634	47	or	or	CC
37894	634	48	not	not	RB
37894	634	49	.	.	.
37894	635	1	In	in	IN
37894	635	2	such	such	JJ
37894	635	3	cases	case	NNS
37894	635	4	the	the	DT
37894	635	5	area	area	NN
37894	635	6	of	of	IN
37894	635	7	the	the	DT
37894	635	8	sky	sky	NN
37894	635	9	under	under	IN
37894	635	10	observation	observation	NN
37894	635	11	is	be	VBZ
37894	635	12	greatly	greatly	RB
37894	635	13	increased	increase	VBN
37894	635	14	,	,	,
37894	635	15	and	and	CC
37894	635	16	a	a	DT
37894	635	17	large	large	JJ
37894	635	18	segment	segment	NN
37894	635	19	of	of	IN
37894	635	20	the	the	DT
37894	635	21	migratory	migratory	NN
37894	635	22	movement	movement	NN
37894	635	23	can	can	MD
37894	635	24	be	be	VB
37894	635	25	studied	study	VBN
37894	635	26	.	.	.
37894	636	1	In	in	IN
37894	636	2	my	-PRON-	PRP$
37894	636	3	own	own	JJ
37894	636	4	experience	experience	NN
37894	636	5	of	of	IN
37894	636	6	this	this	DT
37894	636	7	sort	sort	NN
37894	636	8	,	,	,
37894	636	9	I	-PRON-	PRP
37894	636	10	have	have	VBP
37894	636	11	been	be	VBN
37894	636	12	forcibly	forcibly	RB
37894	636	13	impressed	impressed	JJ
37894	636	14	by	by	IN
37894	636	15	the	the	DT
37894	636	16	apparent	apparent	JJ
37894	636	17	uniformity	uniformity	NN
37894	636	18	and	and	CC
37894	636	19	evenness	evenness	NN
37894	636	20	of	of	IN
37894	636	21	the	the	DT
37894	636	22	procession	procession	NN
37894	636	23	of	of	IN
37894	636	24	migrants	migrant	NNS
37894	636	25	passing	pass	VBG
37894	636	26	in	in	IN
37894	636	27	review	review	NN
37894	636	28	and	and	CC
37894	636	29	the	the	DT
37894	636	30	infrequence	infrequence	NN
37894	636	31	with	with	IN
37894	636	32	which	which	WDT
37894	636	33	birds	bird	NNS
37894	636	34	appeared	appear	VBD
37894	636	35	in	in	IN
37894	636	36	close	close	JJ
37894	636	37	proximity	proximity	NN
37894	636	38	.	.	.
37894	637	1	As	as	IN
37894	637	2	striking	striking	JJ
37894	637	3	as	as	IN
37894	637	4	these	these	DT
37894	637	5	broader	broad	JJR
37894	637	6	optical	optical	JJ
37894	637	7	views	view	NNS
37894	637	8	of	of	IN
37894	637	9	nocturnal	nocturnal	JJ
37894	637	10	migration	migration	NN
37894	637	11	are	be	VBP
37894	637	12	,	,	,
37894	637	13	they	-PRON-	PRP
37894	637	14	have	have	VBP
37894	637	15	been	be	VBN
37894	637	16	too	too	RB
37894	637	17	few	few	JJ
37894	637	18	to	to	TO
37894	637	19	provide	provide	VB
37894	637	20	an	an	DT
37894	637	21	incontestable	incontestable	JJ
37894	637	22	basis	basis	NN
37894	637	23	for	for	IN
37894	637	24	generalizations	generalization	NNS
37894	637	25	.	.	.
37894	638	1	A	a	DT
37894	638	2	better	well	JJR
37894	638	3	test	test	NN
37894	638	4	of	of	IN
37894	638	5	the	the	DT
37894	638	6	prevailing	prevail	VBG
37894	638	7	horizontal	horizontal	JJ
37894	638	8	distribution	distribution	NN
37894	638	9	of	of	IN
37894	638	10	night	night	NN
37894	638	11	migrants	migrant	NNS
37894	638	12	lies	lie	VBZ
37894	638	13	in	in	IN
37894	638	14	the	the	DT
37894	638	15	analysis	analysis	NN
37894	638	16	of	of	IN
37894	638	17	the	the	DT
37894	638	18	telescopic	telescopic	JJ
37894	638	19	data	datum	NNS
37894	638	20	themselves	-PRON-	PRP
37894	638	21	.	.	.
37894	639	1	[	[	-LRB-
37894	639	2	Illustration	illustration	NN
37894	639	3	:	:	:
37894	639	4	FIG	FIG	NNP
37894	639	5	.	.	.
37894	640	1	25	25	CD
37894	640	2	.	.	.
37894	641	1	Positions	position	NNS
37894	641	2	of	of	IN
37894	641	3	the	the	DT
37894	641	4	cone	cone	NN
37894	641	5	of	of	IN
37894	641	6	observation	observation	NN
37894	641	7	at	at	IN
37894	641	8	Tampico	Tampico	NNP
37894	641	9	,	,	,
37894	641	10	Tamps	Tamps	NNP
37894	641	11	.	.	.
37894	641	12	,	,	,
37894	641	13	on	on	IN
37894	641	14	April	April	NNP
37894	641	15	21	21	CD
37894	641	16	-	-	SYM
37894	641	17	22	22	CD
37894	641	18	,	,	,
37894	641	19	1948	1948	CD
37894	641	20	.	.	.
37894	642	1	Essential	essential	JJ
37894	642	2	features	feature	NNS
37894	642	3	of	of	IN
37894	642	4	this	this	DT
37894	642	5	diagrammatic	diagrammatic	JJ
37894	642	6	map	map	NN
37894	642	7	are	be	VBP
37894	642	8	drawn	draw	VBN
37894	642	9	to	to	TO
37894	642	10	scale	scale	VB
37894	642	11	,	,	,
37894	642	12	the	the	DT
37894	642	13	triangular	triangular	JJ
37894	642	14	white	white	JJ
37894	642	15	lines	line	NNS
37894	642	16	representing	represent	VBG
37894	642	17	the	the	DT
37894	642	18	projections	projection	NNS
37894	642	19	of	of	IN
37894	642	20	the	the	DT
37894	642	21	cone	cone	NN
37894	642	22	of	of	IN
37894	642	23	observation	observation	NN
37894	642	24	on	on	IN
37894	642	25	the	the	DT
37894	642	26	actual	actual	JJ
37894	642	27	terrain	terrain	NN
37894	642	28	at	at	IN
37894	642	29	the	the	DT
37894	642	30	mid	mid	NN
37894	642	31	-	-	NN
37894	642	32	point	point	NN
37894	642	33	of	of	IN
37894	642	34	each	each	DT
37894	642	35	hour	hour	NN
37894	642	36	of	of	IN
37894	642	37	observation	observation	NN
37894	642	38	.	.	.
37894	643	1	If	if	IN
37894	643	2	the	the	DT
37894	643	3	distal	distal	JJ
37894	643	4	ends	end	NNS
37894	643	5	of	of	IN
37894	643	6	the	the	DT
37894	643	7	position	position	NN
37894	643	8	lines	line	NNS
37894	643	9	were	be	VBD
37894	643	10	connected	connect	VBN
37894	643	11	,	,	,
37894	643	12	the	the	DT
37894	643	13	portion	portion	NN
37894	643	14	of	of	IN
37894	643	15	the	the	DT
37894	643	16	map	map	NN
37894	643	17	encompassed	encompass	VBN
37894	643	18	would	would	MD
37894	643	19	represent	represent	VB
37894	643	20	the	the	DT
37894	643	21	area	area	NN
37894	643	22	over	over	IN
37894	643	23	which	which	WDT
37894	643	24	all	all	PDT
37894	643	25	the	the	DT
37894	643	26	birds	bird	NNS
37894	643	27	seen	see	VBN
37894	643	28	between	between	IN
37894	643	29	8:30	8:30	CD
37894	643	30	P.	P.	NNP
37894	643	31	M.	M.	NNP
37894	643	32	and	and	CC
37894	643	33	3:30	3:30	CD
37894	643	34	A.	a.	NN
37894	643	35	M.	M.	NNP
37894	643	36	must	must	MD
37894	643	37	have	have	VB
37894	643	38	flown	fly	VBN
37894	643	39	.	.	.
37894	643	40	]	]	-RRB-
37894	644	1	The	the	DT
37894	644	2	distribution	distribution	NN
37894	644	3	in	in	IN
37894	644	4	time	time	NN
37894	644	5	of	of	IN
37894	644	6	birds	bird	NNS
37894	644	7	seen	see	VBN
37894	644	8	by	by	IN
37894	644	9	a	a	DT
37894	644	10	single	single	JJ
37894	644	11	observer	observer	NN
37894	644	12	may	may	MD
37894	644	13	be	be	VB
37894	644	14	studied	study	VBN
37894	644	15	profitably	profitably	RB
37894	644	16	in	in	IN
37894	644	17	this	this	DT
37894	644	18	connection	connection	NN
37894	644	19	.	.	.
37894	645	1	Since	since	IN
37894	645	2	the	the	DT
37894	645	3	cone	cone	NN
37894	645	4	of	of	IN
37894	645	5	observation	observation	NN
37894	645	6	is	be	VBZ
37894	645	7	in	in	IN
37894	645	8	constant	constant	JJ
37894	645	9	motion	motion	NN
37894	645	10	,	,	,
37894	645	11	swinging	swinge	VBG
37894	645	12	across	across	IN
37894	645	13	the	the	DT
37894	645	14	front	front	NN
37894	645	15	of	of	IN
37894	645	16	birds	bird	NNS
37894	645	17	migrating	migrate	VBG
37894	645	18	from	from	IN
37894	645	19	south	south	RB
37894	645	20	to	to	IN
37894	645	21	north	north	NN
37894	645	22	,	,	,
37894	645	23	each	each	DT
37894	645	24	interval	interval	NN
37894	645	25	of	of	IN
37894	645	26	time	time	NN
37894	645	27	actually	actually	RB
37894	645	28	represents	represent	VBZ
37894	645	29	a	a	DT
37894	645	30	different	different	JJ
37894	645	31	position	position	NN
37894	645	32	in	in	IN
37894	645	33	space	space	NN
37894	645	34	.	.	.
37894	646	1	This	this	DT
37894	646	2	is	be	VBZ
37894	646	3	evident	evident	JJ
37894	646	4	from	from	IN
37894	646	5	the	the	DT
37894	646	6	map	map	NN
37894	646	7	of	of	IN
37894	646	8	the	the	DT
37894	646	9	progress	progress	NN
37894	646	10	of	of	IN
37894	646	11	the	the	DT
37894	646	12	field	field	NN
37894	646	13	of	of	IN
37894	646	14	observation	observation	NN
37894	646	15	across	across	IN
37894	646	16	the	the	DT
37894	646	17	terrain	terrain	NN
37894	646	18	at	at	IN
37894	646	19	Tampico	Tampico	NNP
37894	646	20	,	,	,
37894	646	21	Tamaulipas	Tamaulipas	NNP
37894	646	22	,	,	,
37894	646	23	on	on	IN
37894	646	24	April	April	NNP
37894	646	25	21	21	CD
37894	646	26	-	-	SYM
37894	646	27	22	22	CD
37894	646	28	,	,	,
37894	646	29	1948	1948	CD
37894	646	30	(	(	-LRB-
37894	646	31	Figure	figure	NN
37894	646	32	25	25	CD
37894	646	33	)	)	-RRB-
37894	646	34	.	.	.
37894	647	1	At	at	IN
37894	647	2	this	this	DT
37894	647	3	station	station	NN
37894	647	4	on	on	IN
37894	647	5	this	this	DT
37894	647	6	night	night	NN
37894	647	7	,	,	,
37894	647	8	a	a	DT
37894	647	9	total	total	NN
37894	647	10	of	of	IN
37894	647	11	259	259	CD
37894	647	12	birds	bird	NNS
37894	647	13	were	be	VBD
37894	647	14	counted	count	VBN
37894	647	15	between	between	IN
37894	647	16	7:45	7:45	CD
37894	647	17	P.	P.	NNP
37894	647	18	M.	M.	NNP
37894	647	19	and	and	CC
37894	647	20	3:45	3:45	CD
37894	647	21	A.	a.	NN
37894	647	22	M.	m.	NN
37894	647	23	The	the	DT
37894	647	24	number	number	NN
37894	647	25	seen	see	VBN
37894	647	26	in	in	IN
37894	647	27	a	a	DT
37894	647	28	single	single	JJ
37894	647	29	hour	hour	NN
37894	647	30	ranged	range	VBN
37894	647	31	from	from	IN
37894	647	32	three	three	CD
37894	647	33	to	to	TO
37894	647	34	seventy	seventy	CD
37894	647	35	-	-	HYPH
37894	647	36	three	three	CD
37894	647	37	,	,	,
37894	647	38	as	as	IN
37894	647	39	the	the	DT
37894	647	40	density	density	NN
37894	647	41	overhead	overhead	RB
37894	647	42	mounted	mount	VBD
37894	647	43	to	to	IN
37894	647	44	a	a	DT
37894	647	45	peak	peak	NN
37894	647	46	and	and	CC
37894	647	47	then	then	RB
37894	647	48	declined	decline	VBD
37894	647	49	.	.	.
37894	648	1	The	the	DT
37894	648	2	number	number	NN
37894	648	3	of	of	IN
37894	648	4	birds	bird	NNS
37894	648	5	seen	see	VBN
37894	648	6	per	per	IN
37894	648	7	minute	minute	NN
37894	648	8	was	be	VBD
37894	648	9	not	not	RB
37894	648	10	kept	keep	VBN
37894	648	11	with	with	IN
37894	648	12	stop	stop	NN
37894	648	13	watch	watch	NN
37894	648	14	accuracy	accuracy	NN
37894	648	15	;	;	,
37894	648	16	consequently	consequently	RB
37894	648	17	,	,	,
37894	648	18	analysis	analysis	NN
37894	648	19	of	of	IN
37894	648	20	the	the	DT
37894	648	21	number	number	NN
37894	648	22	of	of	IN
37894	648	23	birds	bird	NNS
37894	648	24	that	that	WDT
37894	648	25	passed	pass	VBD
37894	648	26	before	before	IN
37894	648	27	the	the	DT
37894	648	28	moon	moon	NN
37894	648	29	in	in	IN
37894	648	30	short	short	JJ
37894	648	31	intervals	interval	NNS
37894	648	32	of	of	IN
37894	648	33	time	time	NN
37894	648	34	is	be	VBZ
37894	648	35	not	not	RB
37894	648	36	justified	justify	VBN
37894	648	37	.	.	.
37894	649	1	It	-PRON-	PRP
37894	649	2	appears	appear	VBZ
37894	649	3	significant	significant	JJ
37894	649	4	,	,	,
37894	649	5	however	however	RB
37894	649	6	,	,	,
37894	649	7	that	that	IN
37894	649	8	in	in	IN
37894	649	9	the	the	DT
37894	649	10	ninety	ninety	CD
37894	649	11	minutes	minute	NNS
37894	649	12	of	of	IN
37894	649	13	heaviest	heavy	JJS
37894	649	14	flight	flight	NN
37894	649	15	,	,	,
37894	649	16	birds	bird	NNS
37894	649	17	were	be	VBD
37894	649	18	counted	count	VBN
37894	649	19	at	at	IN
37894	649	20	a	a	DT
37894	649	21	remarkably	remarkably	RB
37894	649	22	uniform	uniform	JJ
37894	649	23	rate	rate	NN
37894	649	24	per	per	IN
37894	649	25	fifteen	fifteen	CD
37894	649	26	minute	minute	NN
37894	649	27	interval	interval	NN
37894	649	28	,	,	,
37894	649	29	notwithstanding	notwithstanding	IN
37894	649	30	the	the	DT
37894	649	31	fact	fact	NN
37894	649	32	that	that	IN
37894	649	33	early	early	RB
37894	649	34	in	in	IN
37894	649	35	the	the	DT
37894	649	36	period	period	NN
37894	649	37	the	the	DT
37894	649	38	flight	flight	NN
37894	649	39	rate	rate	NN
37894	649	40	overhead	overhead	RB
37894	649	41	had	have	VBD
37894	649	42	reached	reach	VBN
37894	649	43	a	a	DT
37894	649	44	peak	peak	NN
37894	649	45	and	and	CC
37894	649	46	had	have	VBD
37894	649	47	begun	begin	VBN
37894	649	48	to	to	TO
37894	649	49	decline	decline	VB
37894	649	50	.	.	.
37894	650	1	The	the	DT
37894	650	2	number	number	NN
37894	650	3	of	of	IN
37894	650	4	birds	bird	NNS
37894	650	5	seen	see	VBN
37894	650	6	in	in	IN
37894	650	7	successive	successive	JJ
37894	650	8	fifteen	fifteen	CD
37894	650	9	-	-	HYPH
37894	650	10	minute	minute	NN
37894	650	11	periods	period	NNS
37894	650	12	was	be	VBD
37894	650	13	twenty	twenty	CD
37894	650	14	-	-	HYPH
37894	650	15	six	six	CD
37894	650	16	,	,	,
37894	650	17	twenty	twenty	CD
37894	650	18	-	-	HYPH
37894	650	19	five	five	CD
37894	650	20	,	,	,
37894	650	21	nineteen	nineteen	CD
37894	650	22	,	,	,
37894	650	23	eighteen	eighteen	CD
37894	650	24	,	,	,
37894	650	25	fifteen	fifteen	CD
37894	650	26	,	,	,
37894	650	27	and	and	CC
37894	650	28	fifteen	fifteen	CD
37894	650	29	.	.	.
37894	651	1	Also	also	RB
37894	651	2	,	,	,
37894	651	3	despite	despite	IN
37894	651	4	the	the	DT
37894	651	5	heavy	heavy	JJ
37894	651	6	volume	volume	NN
37894	651	7	of	of	IN
37894	651	8	migration	migration	NN
37894	651	9	at	at	IN
37894	651	10	this	this	DT
37894	651	11	station	station	NN
37894	651	12	on	on	IN
37894	651	13	this	this	DT
37894	651	14	particular	particular	JJ
37894	651	15	night	night	NN
37894	651	16	,	,	,
37894	651	17	the	the	DT
37894	651	18	flight	flight	NN
37894	651	19	was	be	VBD
37894	651	20	sufficiently	sufficiently	RB
37894	651	21	dispersed	disperse	VBN
37894	651	22	horizontally	horizontally	RB
37894	651	23	so	so	IN
37894	651	24	that	that	IN
37894	651	25	only	only	RB
37894	651	26	twice	twice	RB
37894	651	27	in	in	IN
37894	651	28	the	the	DT
37894	651	29	course	course	NN
37894	651	30	of	of	IN
37894	651	31	eight	eight	CD
37894	651	32	hours	hour	NNS
37894	651	33	of	of	IN
37894	651	34	continuous	continuous	JJ
37894	651	35	observation	observation	NN
37894	651	36	did	do	VBD
37894	651	37	more	more	JJR
37894	651	38	than	than	IN
37894	651	39	one	one	CD
37894	651	40	bird	bird	NN
37894	651	41	simultaneously	simultaneously	RB
37894	651	42	appear	appear	VBP
37894	651	43	before	before	IN
37894	651	44	the	the	DT
37894	651	45	moon	moon	NN
37894	651	46	.	.	.
37894	652	1	These	these	DT
37894	652	2	were	be	VBD
37894	652	3	"	"	``
37894	652	4	a	a	DT
37894	652	5	flock	flock	NN
37894	652	6	of	of	IN
37894	652	7	six	six	CD
37894	652	8	birds	bird	NNS
37894	652	9	in	in	IN
37894	652	10	formation	formation	NN
37894	652	11	"	"	``
37894	652	12	seen	see	VBN
37894	652	13	at	at	IN
37894	652	14	12:09	12:09	CD
37894	652	15	A.	a.	NN
37894	652	16	M.	M.	NNP
37894	652	17	and	and	CC
37894	652	18	"	"	``
37894	652	19	a	a	DT
37894	652	20	flock	flock	NN
37894	652	21	of	of	IN
37894	652	22	seven	seven	CD
37894	652	23	,	,	,
37894	652	24	medium	medium	NN
37894	652	25	-	-	HYPH
37894	652	26	sized	sized	JJ
37894	652	27	and	and	CC
37894	652	28	distant	distant	JJ
37894	652	29	,	,	,
37894	652	30	"	"	''
37894	652	31	seen	see	VBN
37894	652	32	at	at	IN
37894	652	33	2:07	2:07	CD
37894	652	34	A.	a.	NN
37894	652	35	M.	M.	NNP
37894	652	36	In	In	NNP
37894	652	37	the	the	DT
37894	652	38	latter	latter	JJ
37894	652	39	instance	instance	NN
37894	652	40	,	,	,
37894	652	41	as	as	IN
37894	652	42	generally	generally	RB
37894	652	43	is	be	VBZ
37894	652	44	the	the	DT
37894	652	45	case	case	NN
37894	652	46	when	when	WRB
37894	652	47	more	more	JJR
37894	652	48	than	than	IN
37894	652	49	one	one	CD
37894	652	50	bird	bird	NN
37894	652	51	is	be	VBZ
37894	652	52	seen	see	VBN
37894	652	53	at	at	IN
37894	652	54	a	a	DT
37894	652	55	time	time	NN
37894	652	56	,	,	,
37894	652	57	the	the	DT
37894	652	58	moon	moon	NN
37894	652	59	had	have	VBD
37894	652	60	reached	reach	VBN
37894	652	61	a	a	DT
37894	652	62	rather	rather	RB
37894	652	63	low	low	JJ
37894	652	64	altitude	altitude	NN
37894	652	65	,	,	,
37894	652	66	and	and	CC
37894	652	67	consequently	consequently	RB
37894	652	68	the	the	DT
37894	652	69	cone	cone	NN
37894	652	70	of	of	IN
37894	652	71	observation	observation	NN
37894	652	72	was	be	VBD
37894	652	73	approaching	approach	VBG
37894	652	74	its	-PRON-	PRP$
37894	652	75	maximum	maximum	JJ
37894	652	76	dimensions	dimension	NNS
37894	652	77	.	.	.
37894	653	1	The	the	DT
37894	653	2	comparative	comparative	JJ
37894	653	3	frequency	frequency	NN
37894	653	4	with	with	IN
37894	653	5	which	which	WDT
37894	653	6	two	two	CD
37894	653	7	or	or	CC
37894	653	8	more	more	JJR
37894	653	9	birds	bird	NNS
37894	653	10	simultaneously	simultaneously	RB
37894	653	11	cross	cross	VBP
37894	653	12	before	before	IN
37894	653	13	the	the	DT
37894	653	14	moon	moon	NN
37894	653	15	would	would	MD
37894	653	16	appear	appear	VB
37894	653	17	to	to	TO
37894	653	18	indicate	indicate	VB
37894	653	19	whether	whether	IN
37894	653	20	or	or	CC
37894	653	21	not	not	RB
37894	653	22	there	there	EX
37894	653	23	is	be	VBZ
37894	653	24	a	a	DT
37894	653	25	tendency	tendency	NN
37894	653	26	for	for	IN
37894	653	27	migrants	migrant	NNS
37894	653	28	to	to	TO
37894	653	29	fly	fly	VB
37894	653	30	in	in	IN
37894	653	31	flocks	flock	NNS
37894	653	32	.	.	.
37894	654	1	It	-PRON-	PRP
37894	654	2	is	be	VBZ
37894	654	3	significant	significant	JJ
37894	654	4	,	,	,
37894	654	5	therefore	therefore	RB
37894	654	6	,	,	,
37894	654	7	that	that	IN
37894	654	8	in	in	IN
37894	654	9	the	the	DT
37894	654	10	spring	spring	NN
37894	654	11	of	of	IN
37894	654	12	1948	1948	CD
37894	654	13	,	,	,
37894	654	14	when	when	WRB
37894	654	15	no	no	DT
37894	654	16	less	less	JJR
37894	654	17	than	than	IN
37894	654	18	7,432	7,432	CD
37894	654	19	observations	observation	NNS
37894	654	20	were	be	VBD
37894	654	21	made	make	VBN
37894	654	22	of	of	IN
37894	654	23	birds	bird	NNS
37894	654	24	passing	pass	VBG
37894	654	25	before	before	IN
37894	654	26	the	the	DT
37894	654	27	moon	moon	NN
37894	654	28	,	,	,
37894	654	29	in	in	IN
37894	654	30	only	only	RB
37894	654	31	seventy	seventy	CD
37894	654	32	-	-	HYPH
37894	654	33	nine	nine	CD
37894	654	34	instances	instance	NNS
37894	654	35	,	,	,
37894	654	36	or	or	CC
37894	654	37	1.1	1.1	CD
37894	654	38	percent	percent	NN
37894	654	39	of	of	IN
37894	654	40	the	the	DT
37894	654	41	cases	case	NNS
37894	654	42	,	,	,
37894	654	43	was	be	VBD
37894	654	44	more	more	JJR
37894	654	45	than	than	IN
37894	654	46	one	one	CD
37894	654	47	seen	see	VBN
37894	654	48	at	at	IN
37894	654	49	a	a	DT
37894	654	50	time	time	NN
37894	654	51	.	.	.
37894	655	1	In	in	IN
37894	655	2	sixty	sixty	CD
37894	655	3	percent	percent	NN
37894	655	4	of	of	IN
37894	655	5	these	these	DT
37894	655	6	instances	instance	NNS
37894	655	7	,	,	,
37894	655	8	only	only	RB
37894	655	9	two	two	CD
37894	655	10	birds	bird	NNS
37894	655	11	were	be	VBD
37894	655	12	involved	involve	VBN
37894	655	13	.	.	.
37894	656	1	In	in	IN
37894	656	2	one	one	CD
37894	656	3	instance	instance	NN
37894	656	4	,	,	,
37894	656	5	however	however	RB
37894	656	6	,	,	,
37894	656	7	again	again	RB
37894	656	8	when	when	WRB
37894	656	9	the	the	DT
37894	656	10	moon	moon	NN
37894	656	11	was	be	VBD
37894	656	12	low	low	JJ
37894	656	13	and	and	CC
37894	656	14	the	the	DT
37894	656	15	cone	cone	NN
37894	656	16	of	of	IN
37894	656	17	observation	observation	NN
37894	656	18	near	near	IN
37894	656	19	its	-PRON-	PRP$
37894	656	20	maximum	maximum	JJ
37894	656	21	size	size	NN
37894	656	22	,	,	,
37894	656	23	a	a	DT
37894	656	24	flock	flock	NN
37894	656	25	estimated	estimate	VBN
37894	656	26	at	at	IN
37894	656	27	twenty	twenty	CD
37894	656	28	-	-	HYPH
37894	656	29	five	five	CD
37894	656	30	was	be	VBD
37894	656	31	recorded	record	VBN
37894	656	32	.	.	.
37894	657	1	The	the	DT
37894	657	2	soundest	sound	JJS
37894	657	3	approach	approach	NN
37894	657	4	of	of	IN
37894	657	5	all	all	DT
37894	657	6	to	to	IN
37894	657	7	the	the	DT
37894	657	8	study	study	NN
37894	657	9	of	of	IN
37894	657	10	horizontal	horizontal	JJ
37894	657	11	distribution	distribution	NN
37894	657	12	at	at	IN
37894	657	13	night	night	NN
37894	657	14	,	,	,
37894	657	15	and	and	CC
37894	657	16	one	one	CD
37894	657	17	which	which	WDT
37894	657	18	may	may	MD
37894	657	19	be	be	VB
37894	657	20	employed	employ	VBN
37894	657	21	any	any	DT
37894	657	22	month	month	NN
37894	657	23	,	,	,
37894	657	24	anywhere	anywhere	RB
37894	657	25	,	,	,
37894	657	26	permitting	permit	VBG
37894	657	27	the	the	DT
37894	657	28	accumulation	accumulation	NN
37894	657	29	of	of	IN
37894	657	30	statistically	statistically	RB
37894	657	31	significant	significant	JJ
37894	657	32	quantities	quantity	NNS
37894	657	33	of	of	IN
37894	657	34	data	datum	NNS
37894	657	35	,	,	,
37894	657	36	is	be	VBZ
37894	657	37	to	to	TO
37894	657	38	set	set	VB
37894	657	39	up	up	RP
37894	657	40	two	two	CD
37894	657	41	telescopes	telescope	NNS
37894	657	42	in	in	IN
37894	657	43	close	close	JJ
37894	657	44	proximity	proximity	NN
37894	657	45	.	.	.
37894	658	1	Provided	provide	VBN
37894	658	2	the	the	DT
37894	658	3	flight	flight	NN
37894	658	4	overhead	overhead	NN
37894	658	5	is	be	VBZ
37894	658	6	evenly	evenly	RB
37894	658	7	dispersed	disperse	VBN
37894	658	8	,	,	,
37894	658	9	each	each	DT
37894	658	10	observer	observer	NN
37894	658	11	should	should	MD
37894	658	12	count	count	VB
37894	658	13	approximately	approximately	RB
37894	658	14	the	the	DT
37894	658	15	same	same	JJ
37894	658	16	number	number	NN
37894	658	17	of	of	IN
37894	658	18	birds	bird	NNS
37894	658	19	in	in	IN
37894	658	20	a	a	DT
37894	658	21	given	give	VBN
37894	658	22	interval	interval	NN
37894	658	23	of	of	IN
37894	658	24	time	time	NN
37894	658	25	.	.	.
37894	659	1	Some	some	DT
37894	659	2	data	datum	NNS
37894	659	3	of	of	IN
37894	659	4	this	this	DT
37894	659	5	type	type	NN
37894	659	6	are	be	VBP
37894	659	7	already	already	RB
37894	659	8	available	available	JJ
37894	659	9	.	.	.
37894	660	1	On	on	IN
37894	660	2	May	May	NNP
37894	660	3	19	19	CD
37894	660	4	-	-	SYM
37894	660	5	20	20	CD
37894	660	6	,	,	,
37894	660	7	at	at	IN
37894	660	8	Urbana	Urbana	NNP
37894	660	9	,	,	,
37894	660	10	Illinois	Illinois	NNP
37894	660	11	,	,	,
37894	660	12	while	while	IN
37894	660	13	stationed	station	VBN
37894	660	14	twenty	twenty	CD
37894	660	15	feet	foot	NNS
37894	660	16	apart	apart	RB
37894	660	17	making	make	VBG
37894	660	18	parallax	parallax	NN
37894	660	19	studies	study	NNS
37894	660	20	with	with	IN
37894	660	21	two	two	CD
37894	660	22	telescopes	telescope	NNS
37894	660	23	to	to	TO
37894	660	24	determine	determine	VB
37894	660	25	the	the	DT
37894	660	26	height	height	NN
37894	660	27	above	above	IN
37894	660	28	the	the	DT
37894	660	29	earth	earth	NN
37894	660	30	of	of	IN
37894	660	31	the	the	DT
37894	660	32	migratory	migratory	JJ
37894	660	33	birds	bird	NNS
37894	660	34	,	,	,
37894	660	35	Carpenter	Carpenter	NNP
37894	660	36	and	and	CC
37894	660	37	Stebbins	Stebbins	NNP
37894	660	38	(	(	-LRB-
37894	660	39	_	_	NNP
37894	660	40	loci	loci	NN
37894	660	41	cit	cit	NN
37894	660	42	.	.	.
37894	660	43	_	_	NNP
37894	660	44	)	)	-RRB-
37894	660	45	saw	see	VBD
37894	660	46	seventy	seventy	CD
37894	660	47	-	-	HYPH
37894	660	48	eight	eight	CD
37894	660	49	birds	bird	NNS
37894	660	50	in	in	IN
37894	660	51	two	two	CD
37894	660	52	and	and	CC
37894	660	53	one	one	CD
37894	660	54	-	-	HYPH
37894	660	55	half	half	NN
37894	660	56	hours	hour	NNS
37894	660	57	.	.	.
37894	661	1	Eleven	eleven	CD
37894	661	2	were	be	VBD
37894	661	3	seen	see	VBN
37894	661	4	by	by	IN
37894	661	5	both	both	DT
37894	661	6	observers	observer	NNS
37894	661	7	,	,	,
37894	661	8	thirty	thirty	CD
37894	661	9	-	-	HYPH
37894	661	10	three	three	CD
37894	661	11	by	by	IN
37894	661	12	Stebbins	stebbin	NNS
37894	661	13	only	only	RB
37894	661	14	,	,	,
37894	661	15	and	and	CC
37894	661	16	thirty	thirty	CD
37894	661	17	-	-	HYPH
37894	661	18	four	four	CD
37894	661	19	by	by	IN
37894	661	20	Carpenter	Carpenter	NNP
37894	661	21	only	only	RB
37894	661	22	.	.	.
37894	662	1	On	on	IN
37894	662	2	October	October	NNP
37894	662	3	10	10	CD
37894	662	4	,	,	,
37894	662	5	1905	1905	CD
37894	662	6	,	,	,
37894	662	7	at	at	IN
37894	662	8	the	the	DT
37894	662	9	same	same	JJ
37894	662	10	place	place	NN
37894	662	11	,	,	,
37894	662	12	in	in	IN
37894	662	13	two	two	CD
37894	662	14	hours	hour	NNS
37894	662	15	,	,	,
37894	662	16	fifty	fifty	CD
37894	662	17	-	-	HYPH
37894	662	18	seven	seven	CD
37894	662	19	birds	bird	NNS
37894	662	20	were	be	VBD
37894	662	21	counted	count	VBN
37894	662	22	,	,	,
37894	662	23	eleven	eleven	CD
37894	662	24	being	be	VBG
37894	662	25	visible	visible	JJ
37894	662	26	through	through	IN
37894	662	27	both	both	DT
37894	662	28	telescopes	telescope	NNS
37894	662	29	.	.	.
37894	663	1	Of	of	IN
37894	663	2	the	the	DT
37894	663	3	remainder	remainder	NN
37894	663	4	,	,	,
37894	663	5	Stebbins	Stebbins	NNP
37894	663	6	saw	see	VBD
37894	663	7	seventeen	seventeen	CD
37894	663	8	and	and	CC
37894	663	9	Carpenter	Carpenter	NNP
37894	663	10	,	,	,
37894	663	11	twenty	twenty	CD
37894	663	12	-	-	HYPH
37894	663	13	nine	nine	CD
37894	663	14	.	.	.
37894	664	1	On	on	IN
37894	664	2	September	September	NNP
37894	664	3	12	12	CD
37894	664	4	,	,	,
37894	664	5	1945	1945	CD
37894	664	6	,	,	,
37894	664	7	at	at	IN
37894	664	8	Baton	Baton	NNP
37894	664	9	Rouge	Rouge	NNP
37894	664	10	,	,	,
37894	664	11	Louisiana	Louisiana	NNP
37894	664	12	,	,	,
37894	664	13	in	in	IN
37894	664	14	an	an	DT
37894	664	15	interval	interval	NN
37894	664	16	of	of	IN
37894	664	17	one	one	CD
37894	664	18	hour	hour	NN
37894	664	19	and	and	CC
37894	664	20	forty	forty	CD
37894	664	21	minutes	minute	NNS
37894	664	22	,	,	,
37894	664	23	two	two	CD
37894	664	24	independent	independent	JJ
37894	664	25	observers	observer	NNS
37894	664	26	each	each	DT
37894	664	27	counted	count	VBD
37894	664	28	six	six	CD
37894	664	29	birds	bird	NNS
37894	664	30	.	.	.
37894	665	1	Again	again	RB
37894	665	2	,	,	,
37894	665	3	on	on	IN
37894	665	4	October	October	NNP
37894	665	5	17	17	CD
37894	665	6	,	,	,
37894	665	7	1945	1945	CD
37894	665	8	,	,	,
37894	665	9	two	two	CD
37894	665	10	observers	observer	NNS
37894	665	11	each	each	DT
37894	665	12	saw	see	VBD
37894	665	13	eleven	eleven	CD
37894	665	14	birds	bird	NNS
37894	665	15	in	in	IN
37894	665	16	twenty	twenty	CD
37894	665	17	-	-	HYPH
37894	665	18	two	two	CD
37894	665	19	minutes	minute	NNS
37894	665	20	.	.	.
37894	666	1	On	on	IN
37894	666	2	April	April	NNP
37894	666	3	10	10	CD
37894	666	4	,	,	,
37894	666	5	1946	1946	CD
37894	666	6	,	,	,
37894	666	7	in	in	IN
37894	666	8	one	one	CD
37894	666	9	hour	hour	NN
37894	666	10	and	and	CC
37894	666	11	five	five	CD
37894	666	12	minutes	minute	NNS
37894	666	13	,	,	,
37894	666	14	twenty	twenty	CD
37894	666	15	-	-	HYPH
37894	666	16	four	four	CD
37894	666	17	birds	bird	NNS
37894	666	18	were	be	VBD
37894	666	19	seen	see	VBN
37894	666	20	through	through	IN
37894	666	21	one	one	CD
37894	666	22	scope	scope	NN
37894	666	23	and	and	CC
37894	666	24	twenty	twenty	CD
37894	666	25	-	-	HYPH
37894	666	26	six	six	CD
37894	666	27	through	through	IN
37894	666	28	the	the	DT
37894	666	29	other	other	JJ
37894	666	30	.	.	.
37894	667	1	Likewise	likewise	RB
37894	667	2	on	on	IN
37894	667	3	May	May	NNP
37894	667	4	12	12	CD
37894	667	5	,	,	,
37894	667	6	1946	1946	CD
37894	667	7	,	,	,
37894	667	8	in	in	IN
37894	667	9	a	a	DT
37894	667	10	single	single	JJ
37894	667	11	hour	hour	NN
37894	667	12	,	,	,
37894	667	13	seventy	seventy	CD
37894	667	14	-	-	HYPH
37894	667	15	three	three	CD
37894	667	16	birds	bird	NNS
37894	667	17	were	be	VBD
37894	667	18	counted	count	VBN
37894	667	19	by	by	IN
37894	667	20	each	each	DT
37894	667	21	of	of	IN
37894	667	22	two	two	CD
37894	667	23	observers	observer	NNS
37894	667	24	.	.	.
37894	668	1	The	the	DT
37894	668	2	Baton	Baton	NNP
37894	668	3	Rouge	Rouge	NNP
37894	668	4	observations	observation	NNS
37894	668	5	were	be	VBD
37894	668	6	made	make	VBN
37894	668	7	with	with	IN
37894	668	8	telescopes	telescope	NNS
37894	668	9	six	six	CD
37894	668	10	to	to	TO
37894	668	11	twelve	twelve	CD
37894	668	12	feet	foot	NNS
37894	668	13	apart	apart	RB
37894	668	14	.	.	.
37894	669	1	These	these	DT
37894	669	2	results	result	NNS
37894	669	3	show	show	VBP
37894	669	4	a	a	DT
37894	669	5	remarkable	remarkable	JJ
37894	669	6	conformity	conformity	NN
37894	669	7	,	,	,
37894	669	8	though	though	IN
37894	669	9	the	the	DT
37894	669	10	exceptional	exceptional	JJ
37894	669	11	October	October	NNP
37894	669	12	observation	observation	NN
37894	669	13	of	of	IN
37894	669	14	Carpenter	Carpenter	NNP
37894	669	15	and	and	CC
37894	669	16	Stebbins	Stebbins	NNP
37894	669	17	indicates	indicate	VBZ
37894	669	18	the	the	DT
37894	669	19	desirability	desirability	NN
37894	669	20	of	of	IN
37894	669	21	continuing	continue	VBG
37894	669	22	these	these	DT
37894	669	23	studies	study	NNS
37894	669	24	,	,	,
37894	669	25	particularly	particularly	RB
37894	669	26	in	in	IN
37894	669	27	the	the	DT
37894	669	28	fall	fall	NN
37894	669	29	.	.	.
37894	670	1	On	on	IN
37894	670	2	the	the	DT
37894	670	3	whole	whole	NN
37894	670	4	,	,	,
37894	670	5	the	the	DT
37894	670	6	available	available	JJ
37894	670	7	evidence	evidence	NN
37894	670	8	points	point	VBZ
37894	670	9	to	to	IN
37894	670	10	the	the	DT
37894	670	11	conclusion	conclusion	NN
37894	670	12	that	that	DT
37894	670	13	night	night	NN
37894	670	14	migration	migration	NN
37894	670	15	differs	differ	VBZ
37894	670	16	materially	materially	RB
37894	670	17	from	from	IN
37894	670	18	the	the	DT
37894	670	19	kind	kind	NN
37894	670	20	of	of	IN
37894	670	21	daytime	daytime	JJ
37894	670	22	migration	migration	NN
37894	670	23	with	with	IN
37894	670	24	which	which	WDT
37894	670	25	we	-PRON-	PRP
37894	670	26	are	be	VBP
37894	670	27	generally	generally	RB
37894	670	28	familiar	familiar	JJ
37894	670	29	.	.	.
37894	671	1	Birds	bird	NNS
37894	671	2	are	be	VBP
37894	671	3	apparently	apparently	RB
37894	671	4	evenly	evenly	RB
37894	671	5	spread	spread	VBN
37894	671	6	throughout	throughout	IN
37894	671	7	the	the	DT
37894	671	8	sky	sky	NN
37894	671	9	,	,	,
37894	671	10	with	with	IN
37894	671	11	little	little	JJ
37894	671	12	tendency	tendency	NN
37894	671	13	to	to	TO
37894	671	14	fly	fly	VB
37894	671	15	in	in	IN
37894	671	16	flocks	flock	NNS
37894	671	17	.	.	.
37894	672	1	It	-PRON-	PRP
37894	672	2	must	must	MD
37894	672	3	be	be	VB
37894	672	4	remembered	remember	VBN
37894	672	5	,	,	,
37894	672	6	however	however	RB
37894	672	7	,	,	,
37894	672	8	that	that	IN
37894	672	9	only	only	RB
37894	672	10	in	in	IN
37894	672	11	the	the	DT
37894	672	12	case	case	NN
37894	672	13	of	of	IN
37894	672	14	night	night	NN
37894	672	15	migration	migration	NN
37894	672	16	have	have	VBP
37894	672	17	objective	objective	JJ
37894	672	18	and	and	CC
37894	672	19	truly	truly	RB
37894	672	20	quantitative	quantitative	JJ
37894	672	21	studies	study	NNS
37894	672	22	been	be	VBN
37894	672	23	made	make	VBN
37894	672	24	of	of	IN
37894	672	25	horizontal	horizontal	JJ
37894	672	26	distribution	distribution	NN
37894	672	27	.	.	.
37894	673	1	There	there	EX
37894	673	2	is	be	VBZ
37894	673	3	a	a	DT
37894	673	4	possibility	possibility	NN
37894	673	5	that	that	IN
37894	673	6	our	-PRON-	PRP$
37894	673	7	impressions	impression	NNS
37894	673	8	of	of	IN
37894	673	9	diurnal	diurnal	JJ
37894	673	10	migration	migration	NN
37894	673	11	are	be	VBP
37894	673	12	unduly	unduly	RB
37894	673	13	influenced	influence	VBN
37894	673	14	by	by	IN
37894	673	15	the	the	DT
37894	673	16	fact	fact	NN
37894	673	17	that	that	IN
37894	673	18	the	the	DT
37894	673	19	species	specie	NNS
37894	673	20	accustomed	accustom	VBN
37894	673	21	to	to	IN
37894	673	22	flying	fly	VBG
37894	673	23	in	in	IN
37894	673	24	flocks	flock	NNS
37894	673	25	are	be	VBP
37894	673	26	the	the	DT
37894	673	27	ones	one	NNS
37894	673	28	that	that	WDT
37894	673	29	attract	attract	VBP
37894	673	30	the	the	DT
37894	673	31	most	most	JJS
37894	673	32	attention	attention	NN
37894	673	33	.	.	.
37894	674	1	These	these	DT
37894	674	2	conclusions	conclusion	NNS
37894	674	3	relate	relate	VBP
37894	674	4	to	to	IN
37894	674	5	the	the	DT
37894	674	6	uniformity	uniformity	NN
37894	674	7	of	of	IN
37894	674	8	migration	migration	NN
37894	674	9	in	in	IN
37894	674	10	terms	term	NNS
37894	674	11	of	of	IN
37894	674	12	short	short	JJ
37894	674	13	distances	distance	NNS
37894	674	14	only	only	RB
37894	674	15	,	,	,
37894	674	16	in	in	IN
37894	674	17	the	the	DT
37894	674	18	immediate	immediate	JJ
37894	674	19	vicinity	vicinity	NN
37894	674	20	of	of	IN
37894	674	21	an	an	DT
37894	674	22	observation	observation	NN
37894	674	23	station	station	NN
37894	674	24	.	.	.
37894	675	1	The	the	DT
37894	675	2	extent	extent	NN
37894	675	3	to	to	TO
37894	675	4	which	which	WDT
37894	675	5	they	-PRON-	PRP
37894	675	6	may	may	MD
37894	675	7	be	be	VB
37894	675	8	applied	apply	VBN
37894	675	9	to	to	IN
37894	675	10	broader	broad	JJR
37894	675	11	fronts	front	NNS
37894	675	12	is	be	VBZ
37894	675	13	a	a	DT
37894	675	14	question	question	NN
37894	675	15	that	that	WDT
37894	675	16	may	may	MD
37894	675	17	be	be	VB
37894	675	18	more	more	RBR
37894	675	19	appropriately	appropriately	RB
37894	675	20	considered	consider	VBN
37894	675	21	later	later	RBR
37894	675	22	,	,	,
37894	675	23	in	in	IN
37894	675	24	connection	connection	NN
37894	675	25	with	with	IN
37894	675	26	continental	continental	JJ
37894	675	27	aspects	aspect	NNS
37894	675	28	of	of	IN
37894	675	29	the	the	DT
37894	675	30	problem	problem	NN
37894	675	31	.	.	.
37894	676	1	B.	B.	NNP
37894	676	2	DENSITY	DENSITY	NNP
37894	676	3	AS	as	IN
37894	676	4	FUNCTION	function	NN
37894	676	5	OF	of	IN
37894	676	6	THE	the	DT
37894	676	7	HOUR	hour	NN
37894	676	8	OF	of	IN
37894	676	9	THE	the	DT
37894	676	10	NIGHT	NIGHT	NNP
37894	676	11	There	there	EX
37894	676	12	are	be	VBP
37894	676	13	few	few	JJ
37894	676	14	aspects	aspect	NNS
37894	676	15	of	of	IN
37894	676	16	nocturnal	nocturnal	JJ
37894	676	17	migration	migration	NN
37894	676	18	about	about	IN
37894	676	19	which	which	WDT
37894	676	20	there	there	EX
37894	676	21	is	be	VBZ
37894	676	22	less	less	RBR
37894	676	23	understanding	understanding	NN
37894	676	24	than	than	IN
37894	676	25	the	the	DT
37894	676	26	matter	matter	NN
37894	676	27	of	of	IN
37894	676	28	when	when	WRB
37894	676	29	the	the	DT
37894	676	30	night	night	NN
37894	676	31	flight	flight	NN
37894	676	32	begins	begin	VBZ
37894	676	33	,	,	,
37894	676	34	at	at	IN
37894	676	35	what	what	WDT
37894	676	36	rate	rate	NN
37894	676	37	it	-PRON-	PRP
37894	676	38	progresses	progress	VBZ
37894	676	39	,	,	,
37894	676	40	and	and	CC
37894	676	41	for	for	IN
37894	676	42	what	what	WDT
37894	676	43	duration	duration	NN
37894	676	44	it	-PRON-	PRP
37894	676	45	continues	continue	VBZ
37894	676	46	.	.	.
37894	677	1	One	one	PRP
37894	677	2	would	would	MD
37894	677	3	think	think	VB
37894	677	4	,	,	,
37894	677	5	however	however	RB
37894	677	6	,	,	,
37894	677	7	that	that	IN
37894	677	8	this	this	DT
37894	677	9	aspect	aspect	NN
37894	677	10	of	of	IN
37894	677	11	the	the	DT
37894	677	12	problem	problem	NN
37894	677	13	,	,	,
37894	677	14	above	above	IN
37894	677	15	most	most	JJS
37894	677	16	others	other	NNS
37894	677	17	,	,	,
37894	677	18	would	would	MD
37894	677	19	have	have	VB
37894	677	20	been	be	VBN
37894	677	21	thoroughly	thoroughly	RB
37894	677	22	explored	explore	VBN
37894	677	23	by	by	IN
37894	677	24	some	some	DT
37894	677	25	means	mean	NNS
37894	677	26	of	of	IN
37894	677	27	objective	objective	JJ
37894	677	28	study	study	NN
37894	677	29	.	.	.
37894	678	1	Yet	yet	RB
37894	678	2	,	,	,
37894	678	3	this	this	DT
37894	678	4	is	be	VBZ
37894	678	5	not	not	RB
37894	678	6	the	the	DT
37894	678	7	case	case	NN
37894	678	8	.	.	.
37894	679	1	Indeed	indeed	RB
37894	679	2	,	,	,
37894	679	3	I	-PRON-	PRP
37894	679	4	find	find	VBP
37894	679	5	not	not	RB
37894	679	6	a	a	DT
37894	679	7	single	single	JJ
37894	679	8	paper	paper	NN
37894	679	9	in	in	IN
37894	679	10	the	the	DT
37894	679	11	American	american	JJ
37894	679	12	literature	literature	NN
37894	679	13	wherein	wherein	WRB
37894	679	14	the	the	DT
37894	679	15	subject	subject	NN
37894	679	16	is	be	VBZ
37894	679	17	discussed	discuss	VBN
37894	679	18	,	,	,
37894	679	19	although	although	IN
37894	679	20	some	some	DT
37894	679	21	attention	attention	NN
37894	679	22	has	have	VBZ
37894	679	23	been	be	VBN
37894	679	24	given	give	VBN
37894	679	25	the	the	DT
37894	679	26	matter	matter	NN
37894	679	27	by	by	IN
37894	679	28	European	european	JJ
37894	679	29	ornithologists	ornithologist	NNS
37894	679	30	.	.	.
37894	680	1	Siivonen	Siivonen	NNP
37894	680	2	(	(	-LRB-
37894	680	3	1936	1936	CD
37894	680	4	)	)	-RRB-
37894	680	5	recorded	record	VBN
37894	680	6	in	in	IN
37894	680	7	Finland	Finland	NNP
37894	680	8	the	the	DT
37894	680	9	frequency	frequency	NN
37894	680	10	of	of	IN
37894	680	11	call	call	JJ
37894	680	12	notes	note	NNS
37894	680	13	of	of	IN
37894	680	14	night	night	NN
37894	680	15	migrating	migrating	NN
37894	680	16	species	specie	NNS
37894	680	17	of	of	IN
37894	680	18	_	_	NNP
37894	680	19	Turdus	Turdus	NNP
37894	680	20	_	_	NNP
37894	680	21	and	and	CC
37894	680	22	from	from	IN
37894	680	23	these	these	DT
37894	680	24	data	datum	NNS
37894	680	25	plotted	plot	VBD
37894	680	26	a	a	DT
37894	680	27	time	time	NN
37894	680	28	curve	curve	NN
37894	680	29	showing	show	VBG
37894	680	30	a	a	DT
37894	680	31	peak	peak	NN
37894	680	32	near	near	IN
37894	680	33	midnight	midnight	NN
37894	680	34	.	.	.
37894	681	1	Bergman	Bergman	NNP
37894	681	2	(	(	-LRB-
37894	681	3	1941	1941	CD
37894	681	4	)	)	-RRB-
37894	681	5	and	and	CC
37894	681	6	Putkonen	Putkonen	NNP
37894	681	7	(	(	-LRB-
37894	681	8	1942	1942	CD
37894	681	9	)	)	-RRB-
37894	681	10	,	,	,
37894	681	11	also	also	RB
37894	681	12	in	in	IN
37894	681	13	Finland	Finland	NNP
37894	681	14	,	,	,
37894	681	15	studied	study	VBD
37894	681	16	the	the	DT
37894	681	17	night	night	NN
37894	681	18	flights	flight	NNS
37894	681	19	of	of	IN
37894	681	20	certain	certain	JJ
37894	681	21	ducks	duck	NNS
37894	681	22	(	(	-LRB-
37894	681	23	_	_	NNP
37894	681	24	Clangula	Clangula	NNP
37894	681	25	hyemalis	hyemalis	NNP
37894	681	26	_	_	NNP
37894	681	27	and	and	CC
37894	681	28	_	_	NNP
37894	681	29	Oidemia	Oidemia	NNP
37894	681	30	fusca	fusca	VBP
37894	681	31	_	_	NNP
37894	681	32	and	and	CC
37894	681	33	_	_	NNP
37894	681	34	O.	O.	NNP
37894	682	1	nigra	nigra	NNP
37894	682	2	_	_	NNP
37894	682	3	)	)	-RRB-
37894	682	4	and	and	CC
37894	682	5	a	a	DT
37894	682	6	goose	goose	NN
37894	682	7	(	(	-LRB-
37894	682	8	_	_	NNP
37894	682	9	Branta	Branta	NNP
37894	682	10	bernicla	bernicla	NNP
37894	682	11	_	_	NNP
37894	682	12	)	)	-RRB-
37894	682	13	and	and	CC
37894	682	14	likewise	likewise	RB
37894	682	15	demonstrated	demonstrate	VBD
37894	682	16	a	a	DT
37894	682	17	peak	peak	NN
37894	682	18	near	near	IN
37894	682	19	midnight	midnight	NN
37894	682	20	.	.	.
37894	683	1	However	however	RB
37894	683	2	,	,	,
37894	683	3	these	these	DT
37894	683	4	studies	study	NNS
37894	683	5	were	be	VBD
37894	683	6	made	make	VBN
37894	683	7	at	at	IN
37894	683	8	northern	northern	JJ
37894	683	9	latitudes	latitude	NNS
37894	683	10	and	and	CC
37894	683	11	in	in	IN
37894	683	12	seasons	season	NNS
37894	683	13	characterized	characterize	VBN
37894	683	14	by	by	IN
37894	683	15	evenings	evening	NNS
37894	683	16	of	of	IN
37894	683	17	long	long	JJ
37894	683	18	twilight	twilight	NN
37894	683	19	,	,	,
37894	683	20	with	with	IN
37894	683	21	complete	complete	JJ
37894	683	22	darkness	darkness	NN
37894	683	23	limited	limit	VBN
37894	683	24	to	to	IN
37894	683	25	a	a	DT
37894	683	26	period	period	NN
37894	683	27	of	of	IN
37894	683	28	short	short	JJ
37894	683	29	duration	duration	NN
37894	683	30	around	around	IN
37894	683	31	midnight	midnight	NN
37894	683	32	.	.	.
37894	684	1	Van	Van	NNP
37894	684	2	Oordt	Oordt	NNP
37894	684	3	(	(	-LRB-
37894	684	4	1943	1943	CD
37894	684	5	:	:	:
37894	684	6	34	34	CD
37894	684	7	)	)	-RRB-
37894	684	8	states	state	VBZ
37894	684	9	that	that	IN
37894	684	10	in	in	IN
37894	684	11	many	many	JJ
37894	684	12	cases	case	NNS
37894	684	13	migration	migration	NN
37894	684	14	lasts	last	VBZ
37894	684	15	all	all	DT
37894	684	16	night	night	NN
37894	684	17	;	;	:
37894	684	18	yet	yet	CC
37894	684	19	,	,	,
37894	684	20	according	accord	VBG
37894	684	21	to	to	IN
37894	684	22	him	-PRON-	PRP
37894	684	23	,	,	,
37894	684	24	most	most	JJS
37894	684	25	European	european	JJ
37894	684	26	investigators	investigator	NNS
37894	684	27	are	be	VBP
37894	684	28	of	of	IN
37894	684	29	the	the	DT
37894	684	30	opinion	opinion	NN
37894	684	31	that	that	IN
37894	684	32	,	,	,
37894	684	33	in	in	IN
37894	684	34	general	general	JJ
37894	684	35	,	,	,
37894	684	36	only	only	RB
37894	684	37	a	a	DT
37894	684	38	part	part	NN
37894	684	39	of	of	IN
37894	684	40	the	the	DT
37894	684	41	night	night	NN
37894	684	42	is	be	VBZ
37894	684	43	used	use	VBN
37894	684	44	,	,	,
37894	684	45	that	that	RB
37894	684	46	is	is	RB
37894	684	47	,	,	,
37894	684	48	the	the	DT
37894	684	49	evening	evening	NN
37894	684	50	and	and	CC
37894	684	51	early	early	JJ
37894	684	52	morning	morning	NN
37894	684	53	hours	hour	NNS
37894	684	54	.	.	.
37894	685	1	The	the	DT
37894	685	2	consensus	consensus	NN
37894	685	3	of	of	IN
37894	685	4	American	american	JJ
37894	685	5	ornithologists	ornithologist	NNS
37894	685	6	seems	seem	VBZ
37894	685	7	to	to	TO
37894	685	8	be	be	VB
37894	685	9	that	that	IN
37894	685	10	migratory	migratory	JJ
37894	685	11	birds	bird	NNS
37894	685	12	begin	begin	VBP
37894	685	13	their	-PRON-	PRP$
37894	685	14	flights	flight	NNS
37894	685	15	in	in	IN
37894	685	16	twilight	twilight	NN
37894	685	17	or	or	CC
37894	685	18	soon	soon	RB
37894	685	19	thereafter	thereafter	RB
37894	685	20	and	and	CC
37894	685	21	that	that	IN
37894	685	22	they	-PRON-	PRP
37894	685	23	remain	remain	VBP
37894	685	24	on	on	IN
37894	685	25	the	the	DT
37894	685	26	wing	wing	NN
37894	685	27	until	until	IN
37894	685	28	dawn	dawn	NN
37894	685	29	.	.	.
37894	686	1	Where	where	WRB
37894	686	2	this	this	DT
37894	686	3	idea	idea	NN
37894	686	4	has	have	VBZ
37894	686	5	been	be	VBN
37894	686	6	challenged	challenge	VBN
37894	686	7	at	at	RB
37894	686	8	all	all	RB
37894	686	9	,	,	,
37894	686	10	the	the	DT
37894	686	11	implication	implication	NN
37894	686	12	seems	seem	VBZ
37894	686	13	to	to	TO
37894	686	14	have	have	VB
37894	686	15	been	be	VBN
37894	686	16	that	that	IN
37894	686	17	the	the	DT
37894	686	18	flights	flight	NNS
37894	686	19	are	be	VBP
37894	686	20	sustained	sustain	VBN
37894	686	21	even	even	RB
37894	686	22	longer	long	RBR
37894	686	23	,	,	,
37894	686	24	often	often	RB
37894	686	25	being	be	VBG
37894	686	26	a	a	DT
37894	686	27	continuation	continuation	NN
37894	686	28	far	far	RB
37894	686	29	into	into	IN
37894	686	30	the	the	DT
37894	686	31	night	night	NN
37894	686	32	of	of	IN
37894	686	33	movements	movement	NNS
37894	686	34	begun	begin	VBN
37894	686	35	in	in	IN
37894	686	36	the	the	DT
37894	686	37	daytime	daytime	NN
37894	686	38	.	.	.
37894	687	1	The	the	DT
37894	687	2	telescopic	telescopic	NN
37894	687	3	method	method	NN
37894	687	4	fails	fail	VBZ
37894	687	5	to	to	TO
37894	687	6	support	support	VB
37894	687	7	either	either	DT
37894	687	8	of	of	IN
37894	687	9	these	these	DT
37894	687	10	latter	latter	JJ
37894	687	11	concepts	concept	NNS
37894	687	12	.	.	.
37894	688	1	[	[	-LRB-
37894	688	2	Illustration	illustration	NN
37894	688	3	:	:	:
37894	688	4	FIG	FIG	NNP
37894	688	5	.	.	.
37894	689	1	26	26	CD
37894	689	2	.	.	.
37894	690	1	Average	average	JJ
37894	690	2	hourly	hourly	JJ
37894	690	3	station	station	NN
37894	690	4	densities	density	NNS
37894	690	5	in	in	IN
37894	690	6	spring	spring	NN
37894	690	7	of	of	IN
37894	690	8	1948	1948	CD
37894	690	9	.	.	.
37894	691	1	This	this	DT
37894	691	2	curve	curve	NN
37894	691	3	represents	represent	VBZ
37894	691	4	the	the	DT
37894	691	5	arithmetic	arithmetic	JJ
37894	691	6	mean	mean	NN
37894	691	7	obtained	obtain	VBN
37894	691	8	by	by	IN
37894	691	9	adding	add	VBG
37894	691	10	all	all	PDT
37894	691	11	the	the	DT
37894	691	12	station	station	NN
37894	691	13	densities	densitie	VBZ
37894	691	14	for	for	IN
37894	691	15	each	each	DT
37894	691	16	hour	hour	NN
37894	691	17	,	,	,
37894	691	18	regardless	regardless	RB
37894	691	19	of	of	IN
37894	691	20	date	date	NN
37894	691	21	,	,	,
37894	691	22	and	and	CC
37894	691	23	dividing	divide	VBG
37894	691	24	the	the	DT
37894	691	25	sum	sum	NN
37894	691	26	by	by	IN
37894	691	27	the	the	DT
37894	691	28	number	number	NN
37894	691	29	of	of	IN
37894	691	30	sets	set	NNS
37894	691	31	of	of	IN
37894	691	32	observations	observation	NNS
37894	691	33	at	at	IN
37894	691	34	that	that	DT
37894	691	35	hour	hour	NN
37894	691	36	(	(	-LRB-
37894	691	37	CST	cst	NN
37894	691	38	)	)	-RRB-
37894	691	39	.	.	.
37894	691	40	]	]	-RRB-
37894	692	1	_	_	NNP
37894	692	2	The	the	DT
37894	692	3	Time	Time	NNP
37894	692	4	Pattern	Pattern	NNP
37894	692	5	_	_	XX
37894	692	6	When	when	WRB
37894	692	7	the	the	DT
37894	692	8	nightly	nightly	JJ
37894	692	9	curves	curve	NNS
37894	692	10	of	of	IN
37894	692	11	density	density	NN
37894	692	12	at	at	IN
37894	692	13	the	the	DT
37894	692	14	various	various	JJ
37894	692	15	stations	station	NNS
37894	692	16	are	be	VBP
37894	692	17	plotted	plot	VBN
37894	692	18	as	as	IN
37894	692	19	a	a	DT
37894	692	20	function	function	NN
37894	692	21	of	of	IN
37894	692	22	time	time	NN
37894	692	23	,	,	,
37894	692	24	a	a	DT
37894	692	25	salient	salient	NN
37894	692	26	fact	fact	NN
37894	692	27	emerges	emerge	VBZ
37894	692	28	--	--	:
37894	692	29	that	that	IN
37894	692	30	the	the	DT
37894	692	31	flow	flow	NN
37894	692	32	of	of	IN
37894	692	33	birds	bird	NNS
37894	692	34	is	be	VBZ
37894	692	35	in	in	IN
37894	692	36	no	no	DT
37894	692	37	instance	instance	NN
37894	692	38	sustained	sustain	VBD
37894	692	39	throughout	throughout	IN
37894	692	40	the	the	DT
37894	692	41	night	night	NN
37894	692	42	.	.	.
37894	693	1	The	the	DT
37894	693	2	majority	majority	NN
37894	693	3	of	of	IN
37894	693	4	the	the	DT
37894	693	5	curves	curve	NNS
37894	693	6	rise	rise	VBP
37894	693	7	smoothly	smoothly	RB
37894	693	8	from	from	IN
37894	693	9	near	near	IN
37894	693	10	zero	zero	CD
37894	693	11	at	at	IN
37894	693	12	the	the	DT
37894	693	13	time	time	NN
37894	693	14	of	of	IN
37894	693	15	twilight	twilight	NN
37894	693	16	to	to	IN
37894	693	17	a	a	DT
37894	693	18	single	single	JJ
37894	693	19	peak	peak	NN
37894	693	20	and	and	CC
37894	693	21	then	then	RB
37894	693	22	decline	decline	VBP
37894	693	23	more	more	RBR
37894	693	24	or	or	CC
37894	693	25	less	less	RBR
37894	693	26	symmetrically	symmetrically	RB
37894	693	27	to	to	TO
37894	693	28	near	near	IN
37894	693	29	the	the	DT
37894	693	30	base	base	NN
37894	693	31	line	line	NN
37894	693	32	before	before	IN
37894	693	33	dawn	dawn	NN
37894	693	34	.	.	.
37894	694	1	The	the	DT
37894	694	2	high	high	JJ
37894	694	3	point	point	NN
37894	694	4	is	be	VBZ
37894	694	5	reached	reach	VBN
37894	694	6	in	in	IN
37894	694	7	or	or	CC
37894	694	8	around	around	IN
37894	694	9	the	the	DT
37894	694	10	eleven	eleven	CD
37894	694	11	to	to	TO
37894	694	12	twelve	twelve	CD
37894	694	13	o'clock	o'clock	NN
37894	694	14	interval	interval	NN
37894	694	15	more	more	RBR
37894	694	16	often	often	RB
37894	694	17	than	than	IN
37894	694	18	at	at	IN
37894	694	19	any	any	DT
37894	694	20	other	other	JJ
37894	694	21	time	time	NN
37894	694	22	.	.	.
37894	695	1	[	[	-LRB-
37894	695	2	Illustration	illustration	NN
37894	695	3	:	:	:
37894	695	4	FIG	FIG	NNP
37894	695	5	.	.	.
37894	696	1	27	27	CD
37894	696	2	.	.	.
37894	697	1	Hourly	hourly	JJ
37894	697	2	station	station	NN
37894	697	3	densities	density	NNS
37894	697	4	plotted	plot	VBD
37894	697	5	as	as	IN
37894	697	6	a	a	DT
37894	697	7	percentage	percentage	NN
37894	697	8	of	of	IN
37894	697	9	peak	peak	NN
37894	697	10	.	.	.
37894	698	1	The	the	DT
37894	698	2	curve	curve	NN
37894	698	3	is	be	VBZ
37894	698	4	based	base	VBN
37894	698	5	only	only	RB
37894	698	6	on	on	IN
37894	698	7	those	those	DT
37894	698	8	sets	set	NNS
37894	698	9	of	of	IN
37894	698	10	data	datum	NNS
37894	698	11	where	where	WRB
37894	698	12	observations	observation	NNS
37894	698	13	were	be	VBD
37894	698	14	continued	continue	VBN
37894	698	15	long	long	RB
37894	698	16	enough	enough	RB
37894	698	17	to	to	TO
37894	698	18	include	include	VB
37894	698	19	the	the	DT
37894	698	20	nightly	nightly	JJ
37894	698	21	peak	peak	NN
37894	698	22	.	.	.
37894	699	1	In	in	IN
37894	699	2	each	each	DT
37894	699	3	set	set	NN
37894	699	4	of	of	IN
37894	699	5	data	datum	NNS
37894	699	6	the	the	DT
37894	699	7	station	station	NN
37894	699	8	density	density	NN
37894	699	9	for	for	IN
37894	699	10	each	each	DT
37894	699	11	hour	hour	NN
37894	699	12	has	have	VBZ
37894	699	13	been	be	VBN
37894	699	14	expressed	express	VBN
37894	699	15	as	as	IN
37894	699	16	a	a	DT
37894	699	17	percentage	percentage	NN
37894	699	18	of	of	IN
37894	699	19	the	the	DT
37894	699	20	peak	peak	NN
37894	699	21	for	for	IN
37894	699	22	the	the	DT
37894	699	23	night	night	NN
37894	699	24	at	at	IN
37894	699	25	the	the	DT
37894	699	26	station	station	NN
37894	699	27	in	in	IN
37894	699	28	question	question	NN
37894	699	29	.	.	.
37894	700	1	All	all	DT
37894	700	2	percentages	percentage	NNS
37894	700	3	for	for	IN
37894	700	4	the	the	DT
37894	700	5	same	same	JJ
37894	700	6	hour	hour	NN
37894	700	7	on	on	IN
37894	700	8	all	all	DT
37894	700	9	dates	date	NNS
37894	700	10	have	have	VBP
37894	700	11	been	be	VBN
37894	700	12	averaged	average	VBN
37894	700	13	to	to	TO
37894	700	14	obtain	obtain	VB
37894	700	15	the	the	DT
37894	700	16	percentile	percentile	JJ
37894	700	17	value	value	NN
37894	700	18	of	of	IN
37894	700	19	the	the	DT
37894	700	20	combined	combined	JJ
37894	700	21	station	station	NN
37894	700	22	density	density	NN
37894	700	23	at	at	IN
37894	700	24	each	each	DT
37894	700	25	hour	hour	NN
37894	700	26	(	(	-LRB-
37894	700	27	CST	cst	NN
37894	700	28	)	)	-RRB-
37894	700	29	.	.	.
37894	700	30	]	]	-RRB-
37894	701	1	Figure	figure	NN
37894	701	2	26	26	CD
37894	701	3	,	,	,
37894	701	4	representing	represent	VBG
37894	701	5	the	the	DT
37894	701	6	average	average	JJ
37894	701	7	hourly	hourly	JJ
37894	701	8	densities	density	NNS
37894	701	9	for	for	IN
37894	701	10	all	all	DT
37894	701	11	stations	station	NNS
37894	701	12	on	on	IN
37894	701	13	all	all	DT
37894	701	14	nights	night	NNS
37894	701	15	of	of	IN
37894	701	16	observation	observation	NN
37894	701	17	,	,	,
37894	701	18	demonstrates	demonstrate	VBZ
37894	701	19	the	the	DT
37894	701	20	over	over	RB
37894	701	21	-	-	HYPH
37894	701	22	all	all	DT
37894	701	23	effect	effect	NN
37894	701	24	of	of	IN
37894	701	25	these	these	DT
37894	701	26	tendencies	tendency	NNS
37894	701	27	.	.	.
37894	702	1	Here	here	RB
37894	702	2	the	the	DT
37894	702	3	highest	high	JJS
37894	702	4	density	density	NN
37894	702	5	is	be	VBZ
37894	702	6	reached	reach	VBN
37894	702	7	in	in	IN
37894	702	8	the	the	DT
37894	702	9	hour	hour	NN
37894	702	10	before	before	IN
37894	702	11	midnight	midnight	NN
37894	702	12	with	with	IN
37894	702	13	indications	indication	NNS
37894	702	14	of	of	IN
37894	702	15	flights	flight	NNS
37894	702	16	of	of	IN
37894	702	17	great	great	JJ
37894	702	18	magnitude	magnitude	NN
37894	702	19	also	also	RB
37894	702	20	in	in	IN
37894	702	21	the	the	DT
37894	702	22	hour	hour	NN
37894	702	23	preceding	precede	VBG
37894	702	24	and	and	CC
37894	702	25	the	the	DT
37894	702	26	hour	hour	NN
37894	702	27	following	follow	VBG
37894	702	28	the	the	DT
37894	702	29	peak	peak	NN
37894	702	30	interval	interval	NN
37894	702	31	.	.	.
37894	703	1	The	the	DT
37894	703	2	curve	curve	NN
37894	703	3	ascends	ascend	VBZ
37894	703	4	somewhat	somewhat	RB
37894	703	5	more	more	RBR
37894	703	6	rapidly	rapidly	RB
37894	703	7	than	than	IN
37894	703	8	it	-PRON-	PRP
37894	703	9	declines	decline	VBZ
37894	703	10	,	,	,
37894	703	11	which	which	WDT
37894	703	12	fact	fact	NN
37894	703	13	may	may	MD
37894	703	14	or	or	CC
37894	703	15	may	may	MD
37894	703	16	not	not	RB
37894	703	17	be	be	VB
37894	703	18	significant	significant	JJ
37894	703	19	.	.	.
37894	704	1	Since	since	IN
37894	704	2	there	there	EX
37894	704	3	is	be	VBZ
37894	704	4	a	a	DT
37894	704	5	great	great	JJ
37894	704	6	disproportion	disproportion	NN
37894	704	7	in	in	IN
37894	704	8	the	the	DT
37894	704	9	total	total	JJ
37894	704	10	volume	volume	NN
37894	704	11	of	of	IN
37894	704	12	migration	migration	NN
37894	704	13	at	at	IN
37894	704	14	different	different	JJ
37894	704	15	localities	locality	NNS
37894	704	16	,	,	,
37894	704	17	the	the	DT
37894	704	18	thought	thought	NN
37894	704	19	might	may	MD
37894	704	20	be	be	VB
37894	704	21	entertained	entertain	VBN
37894	704	22	that	that	IN
37894	704	23	a	a	DT
37894	704	24	few	few	JJ
37894	704	25	high	high	JJ
37894	704	26	magnitude	magnitude	NN
37894	704	27	stations	station	NNS
37894	704	28	,	,	,
37894	704	29	such	such	JJ
37894	704	30	as	as	IN
37894	704	31	Tampico	Tampico	NNP
37894	704	32	and	and	CC
37894	704	33	Progreso	Progreso	NNP
37894	704	34	,	,	,
37894	704	35	have	have	VBP
37894	704	36	imposed	impose	VBN
37894	704	37	their	-PRON-	PRP$
37894	704	38	own	own	JJ
37894	704	39	characteristics	characteristic	NNS
37894	704	40	on	on	IN
37894	704	41	the	the	DT
37894	704	42	final	final	JJ
37894	704	43	graph	graph	NN
37894	704	44	.	.	.
37894	705	1	Fortunately	fortunately	RB
37894	705	2	,	,	,
37894	705	3	this	this	DT
37894	705	4	idea	idea	NN
37894	705	5	may	may	MD
37894	705	6	be	be	VB
37894	705	7	tested	test	VBN
37894	705	8	by	by	IN
37894	705	9	subjecting	subject	VBG
37894	705	10	the	the	DT
37894	705	11	data	datum	NNS
37894	705	12	to	to	IN
37894	705	13	a	a	DT
37894	705	14	second	second	JJ
37894	705	15	treatment	treatment	NN
37894	705	16	.	.	.
37894	706	1	If	if	IN
37894	706	2	hourly	hourly	JJ
37894	706	3	densities	density	NNS
37894	706	4	are	be	VBP
37894	706	5	expressed	express	VBN
37894	706	6	as	as	IN
37894	706	7	a	a	DT
37894	706	8	percentage	percentage	NN
37894	706	9	of	of	IN
37894	706	10	the	the	DT
37894	706	11	nightly	nightly	JJ
37894	706	12	peak	peak	NN
37894	706	13	,	,	,
37894	706	14	each	each	DT
37894	706	15	set	set	NN
37894	706	16	of	of	IN
37894	706	17	observations	observation	NNS
37894	706	18	,	,	,
37894	706	19	regardless	regardless	RB
37894	706	20	of	of	IN
37894	706	21	the	the	DT
37894	706	22	number	number	NN
37894	706	23	of	of	IN
37894	706	24	birds	bird	NNS
37894	706	25	involved	involve	VBN
37894	706	26	,	,	,
37894	706	27	carries	carry	VBZ
37894	706	28	an	an	DT
37894	706	29	equal	equal	JJ
37894	706	30	weight	weight	NN
37894	706	31	in	in	IN
37894	706	32	determining	determine	VBG
37894	706	33	the	the	DT
37894	706	34	character	character	NN
37894	706	35	of	of	IN
37894	706	36	the	the	DT
37894	706	37	over	over	RB
37894	706	38	-	-	HYPH
37894	706	39	all	all	DT
37894	706	40	curve	curve	NN
37894	706	41	.	.	.
37894	707	1	Figure	figure	NN
37894	707	2	27	27	CD
37894	707	3	shows	show	VBZ
37894	707	4	that	that	DT
37894	707	5	percentage	percentage	NN
37894	707	6	analysis	analysis	NN
37894	707	7	produces	produce	VBZ
37894	707	8	a	a	DT
37894	707	9	curve	curve	NN
37894	707	10	almost	almost	RB
37894	707	11	identical	identical	JJ
37894	707	12	with	with	IN
37894	707	13	the	the	DT
37894	707	14	preceding	precede	VBG
37894	707	15	one	one	CD
37894	707	16	.	.	.
37894	708	1	To	to	TO
37894	708	2	be	be	VB
37894	708	3	sure	sure	JJ
37894	708	4	,	,	,
37894	708	5	all	all	DT
37894	708	6	of	of	IN
37894	708	7	the	the	DT
37894	708	8	individual	individual	JJ
37894	708	9	curves	curve	NNS
37894	708	10	do	do	VBP
37894	708	11	not	not	RB
37894	708	12	conform	conform	VB
37894	708	13	with	with	IN
37894	708	14	the	the	DT
37894	708	15	composite	composite	JJ
37894	708	16	,	,	,
37894	708	17	either	either	CC
37894	708	18	in	in	IN
37894	708	19	shape	shape	NN
37894	708	20	or	or	CC
37894	708	21	incidence	incidence	NN
37894	708	22	of	of	IN
37894	708	23	peak	peak	NN
37894	708	24	.	.	.
37894	709	1	The	the	DT
37894	709	2	extent	extent	NN
37894	709	3	of	of	IN
37894	709	4	this	this	DT
37894	709	5	departure	departure	NN
37894	709	6	in	in	IN
37894	709	7	the	the	DT
37894	709	8	latter	latter	JJ
37894	709	9	respect	respect	NN
37894	709	10	is	be	VBZ
37894	709	11	evident	evident	JJ
37894	709	12	from	from	IN
37894	709	13	Figure	Figure	NNP
37894	709	14	28	28	CD
37894	709	15	,	,	,
37894	709	16	showing	show	VBG
37894	709	17	the	the	DT
37894	709	18	number	number	NN
37894	709	19	of	of	IN
37894	709	20	individual	individual	JJ
37894	709	21	nightly	nightly	JJ
37894	709	22	station	station	NN
37894	709	23	curves	curve	NNS
37894	709	24	reaching	reach	VBG
37894	709	25	a	a	DT
37894	709	26	maximum	maximum	JJ
37894	709	27	peak	peak	NN
37894	709	28	in	in	IN
37894	709	29	each	each	DT
37894	709	30	hour	hour	NN
37894	709	31	interval	interval	NN
37894	709	32	.	.	.
37894	710	1	Even	even	RB
37894	710	2	this	this	DT
37894	710	3	graph	graph	NN
37894	710	4	demonstrates	demonstrate	VBZ
37894	710	5	that	that	IN
37894	710	6	maximum	maximum	JJ
37894	710	7	densities	density	NNS
37894	710	8	near	near	IN
37894	710	9	midnight	midnight	NN
37894	710	10	represent	represent	VBP
37894	710	11	the	the	DT
37894	710	12	typical	typical	JJ
37894	710	13	condition	condition	NN
37894	710	14	.	.	.
37894	711	1	[	[	-LRB-
37894	711	2	Illustration	illustration	NN
37894	711	3	:	:	:
37894	711	4	FIG	FIG	NNP
37894	711	5	.	.	.
37894	712	1	28	28	CD
37894	712	2	.	.	.
37894	713	1	Incidence	incidence	NN
37894	713	2	of	of	IN
37894	713	3	maximum	maximum	JJ
37894	713	4	peak	peak	NN
37894	713	5	at	at	IN
37894	713	6	the	the	DT
37894	713	7	various	various	JJ
37894	713	8	hours	hour	NNS
37894	713	9	of	of	IN
37894	713	10	the	the	DT
37894	713	11	night	night	NN
37894	713	12	in	in	IN
37894	713	13	1948	1948	CD
37894	713	14	.	.	.
37894	714	1	"	"	``
37894	714	2	Number	number	NN
37894	714	3	of	of	IN
37894	714	4	stations	station	NNS
37894	714	5	"	"	``
37894	714	6	represents	represent	VBZ
37894	714	7	the	the	DT
37894	714	8	total	total	NN
37894	714	9	for	for	IN
37894	714	10	all	all	DT
37894	714	11	nights	night	NNS
37894	714	12	of	of	IN
37894	714	13	the	the	DT
37894	714	14	numbers	number	NNS
37894	714	15	of	of	IN
37894	714	16	station	station	NN
37894	714	17	peaks	peak	NNS
37894	714	18	falling	fall	VBG
37894	714	19	within	within	IN
37894	714	20	a	a	DT
37894	714	21	given	give	VBN
37894	714	22	hour	hour	NN
37894	714	23	.	.	.
37894	714	24	]	]	-RRB-
37894	715	1	The	the	DT
37894	715	2	remarkable	remarkable	JJ
37894	715	3	smoothness	smoothness	NN
37894	715	4	and	and	CC
37894	715	5	consistency	consistency	NN
37894	715	6	of	of	IN
37894	715	7	the	the	DT
37894	715	8	curves	curve	NNS
37894	715	9	shown	show	VBN
37894	715	10	in	in	IN
37894	715	11	Figures	Figures	NNP
37894	715	12	26	26	CD
37894	715	13	and	and	CC
37894	715	14	27	27	CD
37894	715	15	seem	seem	VBP
37894	715	16	to	to	TO
37894	715	17	lead	lead	VB
37894	715	18	directly	directly	RB
37894	715	19	to	to	IN
37894	715	20	the	the	DT
37894	715	21	conclusion	conclusion	NN
37894	715	22	that	that	IN
37894	715	23	the	the	DT
37894	715	24	volume	volume	NN
37894	715	25	of	of	IN
37894	715	26	night	night	NN
37894	715	27	migration	migration	NN
37894	715	28	varies	vary	VBZ
37894	715	29	as	as	IN
37894	715	30	a	a	DT
37894	715	31	function	function	NN
37894	715	32	of	of	IN
37894	715	33	time	time	NN
37894	715	34	.	.	.
37894	716	1	Admittedly	admittedly	RB
37894	716	2	other	other	JJ
37894	716	3	factors	factor	NNS
37894	716	4	are	be	VBP
37894	716	5	potentially	potentially	RB
37894	716	6	capable	capable	JJ
37894	716	7	of	of	IN
37894	716	8	influencing	influence	VBG
37894	716	9	the	the	DT
37894	716	10	number	number	NN
37894	716	11	of	of	IN
37894	716	12	birds	bird	NNS
37894	716	13	passing	pass	VBG
37894	716	14	a	a	DT
37894	716	15	given	give	VBN
37894	716	16	station	station	NN
37894	716	17	in	in	IN
37894	716	18	a	a	DT
37894	716	19	given	give	VBN
37894	716	20	hour	hour	NN
37894	716	21	.	.	.
37894	717	1	Among	among	IN
37894	717	2	these	these	DT
37894	717	3	are	be	VBP
37894	717	4	weather	weather	NN
37894	717	5	conditions	condition	NNS
37894	717	6	,	,	,
37894	717	7	ecological	ecological	JJ
37894	717	8	patterns	pattern	NNS
37894	717	9	,	,	,
37894	717	10	and	and	CC
37894	717	11	specific	specific	JJ
37894	717	12	topographical	topographical	JJ
37894	717	13	features	feature	NNS
37894	717	14	that	that	WDT
37894	717	15	might	may	MD
37894	717	16	conceivably	conceivably	RB
37894	717	17	serve	serve	VB
37894	717	18	as	as	IN
37894	717	19	preferred	preferred	JJ
37894	717	20	avenues	avenue	NNS
37894	717	21	of	of	IN
37894	717	22	flight	flight	NN
37894	717	23	.	.	.
37894	718	1	However	however	RB
37894	718	2	,	,	,
37894	718	3	if	if	IN
37894	718	4	any	any	DT
37894	718	5	of	of	IN
37894	718	6	these	these	DT
37894	718	7	considerations	consideration	NNS
37894	718	8	were	be	VBD
37894	718	9	alone	alone	RB
37894	718	10	responsible	responsible	JJ
37894	718	11	for	for	IN
37894	718	12	changes	change	NNS
37894	718	13	in	in	IN
37894	718	14	the	the	DT
37894	718	15	numbers	number	NNS
37894	718	16	of	of	IN
37894	718	17	birds	bird	NNS
37894	718	18	seen	see	VBN
37894	718	19	in	in	IN
37894	718	20	successive	successive	JJ
37894	718	21	intervals	interval	NNS
37894	718	22	,	,	,
37894	718	23	the	the	DT
37894	718	24	distribution	distribution	NN
37894	718	25	of	of	IN
37894	718	26	the	the	DT
37894	718	27	peak	peak	NN
37894	718	28	in	in	IN
37894	718	29	time	time	NN
37894	718	30	could	could	MD
37894	718	31	be	be	VB
37894	718	32	expected	expect	VBN
37894	718	33	to	to	TO
37894	718	34	be	be	VB
37894	718	35	haphazard	haphazard	VBN
37894	718	36	.	.	.
37894	719	1	For	for	IN
37894	719	2	example	example	NN
37894	719	3	,	,	,
37894	719	4	there	there	EX
37894	719	5	is	be	VBZ
37894	719	6	no	no	DT
37894	719	7	reason	reason	NN
37894	719	8	to	to	TO
37894	719	9	suppose	suppose	VB
37894	719	10	that	that	IN
37894	719	11	the	the	DT
37894	719	12	cone	cone	NN
37894	719	13	of	of	IN
37894	719	14	observation	observation	NN
37894	719	15	would	would	MD
37894	719	16	come	come	VB
37894	719	17	to	to	TO
37894	719	18	lie	lie	VB
37894	719	19	over	over	IN
37894	719	20	favored	favored	JJ
37894	719	21	terrain	terrain	NN
37894	719	22	at	at	IN
37894	719	23	precisely	precisely	RB
37894	719	24	the	the	DT
37894	719	25	hour	hour	NN
37894	719	26	between	between	IN
37894	719	27	eleven	eleven	CD
37894	719	28	and	and	CC
37894	719	29	twelve	twelve	CD
37894	719	30	o'clock	o'clock	NN
37894	719	31	at	at	IN
37894	719	32	so	so	RB
37894	719	33	many	many	JJ
37894	719	34	widely	widely	RB
37894	719	35	separated	separated	JJ
37894	719	36	stations	station	NNS
37894	719	37	.	.	.
37894	720	1	Neither	neither	DT
37894	720	2	could	could	MD
37894	720	3	the	the	DT
37894	720	4	topographical	topographical	JJ
37894	720	5	hypothesis	hypothesis	NN
37894	720	6	explain	explain	VB
37894	720	7	the	the	DT
37894	720	8	consistently	consistently	RB
37894	720	9	ascending	ascend	VBG
37894	720	10	and	and	CC
37894	720	11	descending	descend	VBG
37894	720	12	pattern	pattern	NN
37894	720	13	of	of	IN
37894	720	14	the	the	DT
37894	720	15	ordinates	ordinate	NNS
37894	720	16	in	in	IN
37894	720	17	Figure	Figure	NNP
37894	720	18	28	28	CD
37894	720	19	.	.	.
37894	721	1	This	this	DT
37894	721	2	is	be	VBZ
37894	721	3	not	not	RB
37894	721	4	to	to	TO
37894	721	5	say	say	VB
37894	721	6	that	that	IN
37894	721	7	other	other	JJ
37894	721	8	factors	factor	NNS
37894	721	9	are	be	VBP
37894	721	10	without	without	IN
37894	721	11	effect	effect	NN
37894	721	12	;	;	:
37894	721	13	they	-PRON-	PRP
37894	721	14	no	no	RB
37894	721	15	doubt	doubt	RB
37894	721	16	explain	explain	VBP
37894	721	17	the	the	DT
37894	721	18	divergencies	divergency	NNS
37894	721	19	in	in	IN
37894	721	20	the	the	DT
37894	721	21	time	time	NN
37894	721	22	pattern	pattern	NN
37894	721	23	exhibited	exhibit	VBN
37894	721	24	by	by	IN
37894	721	25	Figure	Figure	NNP
37894	721	26	28	28	CD
37894	721	27	.	.	.
37894	722	1	Nevertheless	nevertheless	RB
37894	722	2	,	,	,
37894	722	3	the	the	DT
37894	722	4	underlying	underlie	VBG
37894	722	5	circumstances	circumstance	NNS
37894	722	6	are	be	VBP
37894	722	7	such	such	JJ
37894	722	8	that	that	IN
37894	722	9	when	when	WRB
37894	722	10	many	many	JJ
37894	722	11	sets	set	NNS
37894	722	12	of	of	IN
37894	722	13	data	datum	NNS
37894	722	14	are	be	VBP
37894	722	15	merged	merge	VBN
37894	722	16	these	these	DT
37894	722	17	other	other	JJ
37894	722	18	influences	influence	NNS
37894	722	19	are	be	VBP
37894	722	20	subordinated	subordinate	VBN
37894	722	21	to	to	IN
37894	722	22	the	the	DT
37894	722	23	rise	rise	NN
37894	722	24	and	and	CC
37894	722	25	fall	fall	VB
37894	722	26	of	of	IN
37894	722	27	an	an	DT
37894	722	28	evident	evident	JJ
37894	722	29	time	time	NN
37894	722	30	pattern	pattern	NN
37894	722	31	.	.	.
37894	723	1	Stated	state	VBN
37894	723	2	in	in	IN
37894	723	3	concrete	concrete	JJ
37894	723	4	terms	term	NNS
37894	723	5	,	,	,
37894	723	6	the	the	DT
37894	723	7	time	time	NN
37894	723	8	frequencies	frequency	NNS
37894	723	9	shown	show	VBN
37894	723	10	in	in	IN
37894	723	11	the	the	DT
37894	723	12	graphs	graph	NNS
37894	723	13	suggest	suggest	VBP
37894	723	14	the	the	DT
37894	723	15	following	following	JJ
37894	723	16	conclusions	conclusion	NNS
37894	723	17	:	:	:
37894	723	18	first	first	JJ
37894	723	19	,	,	,
37894	723	20	nocturnal	nocturnal	JJ
37894	723	21	migrations	migration	NNS
37894	723	22	are	be	VBP
37894	723	23	not	not	RB
37894	723	24	a	a	DT
37894	723	25	continuation	continuation	NN
37894	723	26	of	of	IN
37894	723	27	daytime	daytime	JJ
37894	723	28	flights	flight	NNS
37894	723	29	;	;	,
37894	723	30	second	second	RB
37894	723	31	,	,	,
37894	723	32	nearly	nearly	RB
37894	723	33	all	all	DT
37894	723	34	night	night	NN
37894	723	35	migrants	migrant	NNS
37894	723	36	come	come	VBP
37894	723	37	to	to	IN
37894	723	38	earth	earth	NN
37894	723	39	well	well	RB
37894	723	40	before	before	IN
37894	723	41	dawn	dawn	NN
37894	723	42	;	;	:
37894	723	43	and	and	CC
37894	723	44	,	,	,
37894	723	45	third	third	JJ
37894	723	46	,	,	,
37894	723	47	in	in	IN
37894	723	48	each	each	DT
37894	723	49	hour	hour	NN
37894	723	50	of	of	IN
37894	723	51	the	the	DT
37894	723	52	night	night	NN
37894	723	53	up	up	RB
37894	723	54	until	until	IN
37894	723	55	eleven	eleven	CD
37894	723	56	or	or	CC
37894	723	57	twelve	twelve	CD
37894	723	58	o'clock	o'clock	NN
37894	723	59	there	there	EX
37894	723	60	is	be	VBZ
37894	723	61	typically	typically	RB
37894	723	62	a	a	DT
37894	723	63	progressive	progressive	JJ
37894	723	64	increase	increase	NN
37894	723	65	in	in	IN
37894	723	66	the	the	DT
37894	723	67	number	number	NN
37894	723	68	of	of	IN
37894	723	69	birds	bird	NNS
37894	723	70	that	that	WDT
37894	723	71	have	have	VBP
37894	723	72	taken	take	VBN
37894	723	73	wing	wing	NN
37894	723	74	and	and	CC
37894	723	75	in	in	IN
37894	723	76	each	each	DT
37894	723	77	of	of	IN
37894	723	78	the	the	DT
37894	723	79	hours	hour	NNS
37894	723	80	thereafter	thereafter	RB
37894	723	81	there	there	EX
37894	723	82	is	be	VBZ
37894	723	83	a	a	DT
37894	723	84	gradual	gradual	JJ
37894	723	85	decrease	decrease	NN
37894	723	86	.	.	.
37894	724	1	Taken	take	VBN
37894	724	2	at	at	IN
37894	724	3	its	-PRON-	PRP$
37894	724	4	face	face	NN
37894	724	5	value	value	NN
37894	724	6	,	,	,
37894	724	7	the	the	DT
37894	724	8	evidence	evidence	NN
37894	724	9	seems	seem	VBZ
37894	724	10	to	to	TO
37894	724	11	indicate	indicate	VB
37894	724	12	that	that	IN
37894	724	13	birds	bird	NNS
37894	724	14	do	do	VBP
37894	724	15	not	not	RB
37894	724	16	begin	begin	VB
37894	724	17	their	-PRON-	PRP$
37894	724	18	night	night	NN
37894	724	19	migrations	migration	NNS
37894	724	20	_	_	NNP
37894	724	21	en	en	IN
37894	724	22	masse	masse	NNP
37894	724	23	_	_	NNP
37894	724	24	and	and	CC
37894	724	25	remain	remain	VB
37894	724	26	on	on	IN
37894	724	27	the	the	DT
37894	724	28	wing	wing	NN
37894	724	29	until	until	IN
37894	724	30	dawn	dawn	NN
37894	724	31	and	and	CC
37894	724	32	that	that	IN
37894	724	33	in	in	IN
37894	724	34	all	all	DT
37894	724	35	probability	probability	NN
37894	724	36	most	most	JJS
37894	724	37	of	of	IN
37894	724	38	them	-PRON-	PRP
37894	724	39	utilize	utilize	VBP
37894	724	40	less	less	JJR
37894	724	41	than	than	IN
37894	724	42	half	half	NN
37894	724	43	of	of	IN
37894	724	44	the	the	DT
37894	724	45	night	night	NN
37894	724	46	.	.	.
37894	725	1	Interestingly	interestingly	RB
37894	725	2	enough	enough	RB
37894	725	3	,	,	,
37894	725	4	the	the	DT
37894	725	5	fact	fact	NN
37894	725	6	that	that	IN
37894	725	7	the	the	DT
37894	725	8	plot	plot	NN
37894	725	9	points	point	NNS
37894	725	10	in	in	IN
37894	725	11	Figure	figure	NN
37894	725	12	26	26	CD
37894	725	13	lie	lie	VBP
37894	725	14	nearly	nearly	RB
37894	725	15	in	in	IN
37894	725	16	line	line	NN
37894	725	17	tempts	tempt	VBZ
37894	725	18	one	one	CD
37894	725	19	to	to	IN
37894	725	20	a	a	DT
37894	725	21	further	further	JJ
37894	725	22	conclusion	conclusion	NN
37894	725	23	.	.	.
37894	726	1	The	the	DT
37894	726	2	curve	curve	NN
37894	726	3	behaves	behave	NNS
37894	726	4	as	as	IN
37894	726	5	an	an	DT
37894	726	6	arithmetic	arithmetic	JJ
37894	726	7	progression	progression	NN
37894	726	8	,	,	,
37894	726	9	indicating	indicate	VBG
37894	726	10	that	that	IN
37894	726	11	approximately	approximately	RB
37894	726	12	the	the	DT
37894	726	13	same	same	JJ
37894	726	14	number	number	NN
37894	726	15	of	of	IN
37894	726	16	birds	bird	NNS
37894	726	17	are	be	VBP
37894	726	18	leaving	leave	VBG
37894	726	19	the	the	DT
37894	726	20	ground	ground	NN
37894	726	21	in	in	IN
37894	726	22	each	each	DT
37894	726	23	hour	hour	NN
37894	726	24	interval	interval	NN
37894	726	25	up	up	IN
37894	726	26	to	to	IN
37894	726	27	a	a	DT
37894	726	28	point	point	NN
37894	726	29	and	and	CC
37894	726	30	that	that	IN
37894	726	31	afterwards	afterwards	RB
37894	726	32	approximately	approximately	RB
37894	726	33	the	the	DT
37894	726	34	same	same	JJ
37894	726	35	number	number	NN
37894	726	36	are	be	VBP
37894	726	37	descending	descend	VBG
37894	726	38	within	within	IN
37894	726	39	each	each	DT
37894	726	40	hour	hour	NN
37894	726	41	.	.	.
37894	727	1	However	however	RB
37894	727	2	,	,	,
37894	727	3	some	some	DT
37894	727	4	of	of	IN
37894	727	5	the	the	DT
37894	727	6	components	component	NNS
37894	727	7	making	make	VBG
37894	727	8	up	up	RP
37894	727	9	this	this	DT
37894	727	10	curve	curve	NN
37894	727	11	,	,	,
37894	727	12	as	as	IN
37894	727	13	later	later	RB
37894	727	14	shown	show	VBN
37894	727	15	,	,	,
37894	727	16	are	be	VBP
37894	727	17	so	so	RB
37894	727	18	aberrant	aberrant	JJ
37894	727	19	in	in	IN
37894	727	20	this	this	DT
37894	727	21	regard	regard	NN
37894	727	22	that	that	IN
37894	727	23	serious	serious	JJ
37894	727	24	doubt	doubt	NN
37894	727	25	is	be	VBZ
37894	727	26	cast	cast	VBN
37894	727	27	on	on	IN
37894	727	28	the	the	DT
37894	727	29	validity	validity	NN
37894	727	30	of	of	IN
37894	727	31	this	this	DT
37894	727	32	generalization	generalization	NN
37894	727	33	.	.	.
37894	728	1	Because	because	IN
37894	728	2	the	the	DT
37894	728	3	results	result	NNS
37894	728	4	of	of	IN
37894	728	5	these	these	DT
37894	728	6	time	time	NN
37894	728	7	studies	study	NNS
37894	728	8	are	be	VBP
37894	728	9	unexpected	unexpected	JJ
37894	728	10	and	and	CC
37894	728	11	startling	startling	JJ
37894	728	12	,	,	,
37894	728	13	I	-PRON-	PRP
37894	728	14	have	have	VBP
37894	728	15	sought	seek	VBN
37894	728	16	to	to	TO
37894	728	17	explore	explore	VB
37894	728	18	other	other	JJ
37894	728	19	alternative	alternative	JJ
37894	728	20	explanations	explanation	NNS
37894	728	21	and	and	CC
37894	728	22	none	none	NN
37894	728	23	appears	appear	VBZ
37894	728	24	to	to	TO
37894	728	25	be	be	VB
37894	728	26	tenable	tenable	JJ
37894	728	27	.	.	.
37894	729	1	For	for	IN
37894	729	2	example	example	NN
37894	729	3	,	,	,
37894	729	4	the	the	DT
37894	729	5	notion	notion	NN
37894	729	6	that	that	IN
37894	729	7	the	the	DT
37894	729	8	varying	vary	VBG
37894	729	9	flight	flight	NN
37894	729	10	speeds	speed	NNS
37894	729	11	of	of	IN
37894	729	12	birds	bird	NNS
37894	729	13	might	may	MD
37894	729	14	operate	operate	VB
37894	729	15	in	in	IN
37894	729	16	some	some	DT
37894	729	17	way	way	NN
37894	729	18	to	to	TO
37894	729	19	produce	produce	VB
37894	729	20	a	a	DT
37894	729	21	cumulative	cumulative	JJ
37894	729	22	effect	effect	NN
37894	729	23	as	as	IN
37894	729	24	the	the	DT
37894	729	25	night	night	NN
37894	729	26	progresses	progress	NNS
37894	729	27	must	must	MD
37894	729	28	be	be	VB
37894	729	29	rejected	reject	VBN
37894	729	30	on	on	IN
37894	729	31	close	close	JJ
37894	729	32	analysis	analysis	NN
37894	729	33	.	.	.
37894	730	1	If	if	IN
37894	730	2	birds	bird	NNS
37894	730	3	of	of	IN
37894	730	4	varying	vary	VBG
37894	730	5	flight	flight	NN
37894	730	6	speeds	speed	NNS
37894	730	7	are	be	VBP
37894	730	8	continuously	continuously	RB
37894	730	9	and	and	CC
37894	730	10	evenly	evenly	RB
37894	730	11	distributed	distribute	VBN
37894	730	12	in	in	IN
37894	730	13	space	space	NN
37894	730	14	,	,	,
37894	730	15	a	a	DT
37894	730	16	continuous	continuous	JJ
37894	730	17	and	and	CC
37894	730	18	even	even	RB
37894	730	19	flow	flow	NN
37894	730	20	would	would	MD
37894	730	21	result	result	VB
37894	730	22	all	all	RB
37894	730	23	along	along	IN
37894	730	24	their	-PRON-	PRP$
37894	730	25	line	line	NN
37894	730	26	of	of	IN
37894	730	27	flight	flight	NN
37894	730	28	.	.	.
37894	731	1	If	if	IN
37894	731	2	they	-PRON-	PRP
37894	731	3	are	be	VBP
37894	731	4	haphazardly	haphazardly	RB
37894	731	5	distributed	distribute	VBN
37894	731	6	in	in	IN
37894	731	7	space	space	NN
37894	731	8	,	,	,
37894	731	9	a	a	DT
37894	731	10	correspondingly	correspondingly	RB
37894	731	11	haphazard	haphazard	JJ
37894	731	12	density	density	NN
37894	731	13	pattern	pattern	NN
37894	731	14	would	would	MD
37894	731	15	be	be	VB
37894	731	16	expected	expect	VBN
37894	731	17	.	.	.
37894	732	1	Another	another	DT
37894	732	2	explanation	explanation	NN
37894	732	3	might	may	MD
37894	732	4	be	be	VB
37894	732	5	sought	seek	VBN
37894	732	6	in	in	IN
37894	732	7	the	the	DT
37894	732	8	purely	purely	RB
37894	732	9	mathematical	mathematical	JJ
37894	732	10	effects	effect	NNS
37894	732	11	of	of	IN
37894	732	12	the	the	DT
37894	732	13	method	method	NN
37894	732	14	itself	-PRON-	PRP
37894	732	15	.	.	.
37894	733	1	The	the	DT
37894	733	2	computational	computational	JJ
37894	733	3	procedure	procedure	NN
37894	733	4	assumes	assume	VBZ
37894	733	5	that	that	IN
37894	733	6	the	the	DT
37894	733	7	effective	effective	JJ
37894	733	8	area	area	NN
37894	733	9	of	of	IN
37894	733	10	the	the	DT
37894	733	11	sample	sample	NN
37894	733	12	is	be	VBZ
37894	733	13	extremely	extremely	RB
37894	733	14	large	large	JJ
37894	733	15	when	when	WRB
37894	733	16	the	the	DT
37894	733	17	moon	moon	NN
37894	733	18	is	be	VBZ
37894	733	19	low	low	JJ
37894	733	20	,	,	,
37894	733	21	a	a	DT
37894	733	22	condition	condition	NN
37894	733	23	that	that	WDT
37894	733	24	usually	usually	RB
37894	733	25	obtains	obtain	VBZ
37894	733	26	in	in	IN
37894	733	27	the	the	DT
37894	733	28	early	early	JJ
37894	733	29	hours	hour	NNS
37894	733	30	of	of	IN
37894	733	31	the	the	DT
37894	733	32	evening	evening	NN
37894	733	33	in	in	IN
37894	733	34	the	the	DT
37894	733	35	days	day	NNS
37894	733	36	surrounding	surround	VBG
37894	733	37	the	the	DT
37894	733	38	full	full	JJ
37894	733	39	moon	moon	NN
37894	733	40	.	.	.
37894	734	1	Actually	actually	RB
37894	734	2	no	no	DT
37894	734	3	tests	test	NNS
37894	734	4	have	have	VBP
37894	734	5	yet	yet	RB
37894	734	6	been	be	VBN
37894	734	7	conducted	conduct	VBN
37894	734	8	to	to	TO
37894	734	9	ascertain	ascertain	VB
37894	734	10	how	how	WRB
37894	734	11	far	far	RB
37894	734	12	away	away	RB
37894	734	13	a	a	DT
37894	734	14	silhouette	silhouette	NN
37894	734	15	of	of	IN
37894	734	16	a	a	DT
37894	734	17	small	small	JJ
37894	734	18	bird	bird	NN
37894	734	19	can	can	MD
37894	734	20	be	be	VB
37894	734	21	seen	see	VBN
37894	734	22	as	as	IN
37894	734	23	it	-PRON-	PRP
37894	734	24	passes	pass	VBZ
37894	734	25	before	before	IN
37894	734	26	the	the	DT
37894	734	27	moon	moon	NN
37894	734	28	.	.	.
37894	735	1	Consequently	consequently	RB
37894	735	2	,	,	,
37894	735	3	it	-PRON-	PRP
37894	735	4	is	be	VBZ
37894	735	5	possible	possible	JJ
37894	735	6	that	that	IN
37894	735	7	some	some	DT
37894	735	8	birds	bird	NNS
37894	735	9	are	be	VBP
37894	735	10	missed	miss	VBN
37894	735	11	under	under	IN
37894	735	12	these	these	DT
37894	735	13	conditions	condition	NNS
37894	735	14	and	and	CC
37894	735	15	that	that	IN
37894	735	16	the	the	DT
37894	735	17	effective	effective	JJ
37894	735	18	field	field	NN
37894	735	19	of	of	IN
37894	735	20	visibility	visibility	NN
37894	735	21	is	be	VBZ
37894	735	22	considerably	considerably	RB
37894	735	23	smaller	small	JJR
37894	735	24	than	than	IN
37894	735	25	the	the	DT
37894	735	26	computed	compute	VBN
37894	735	27	field	field	NN
37894	735	28	of	of	IN
37894	735	29	visibility	visibility	NN
37894	735	30	.	.	.
37894	736	1	The	the	DT
37894	736	2	tendency	tendency	NN
37894	736	3	,	,	,
37894	736	4	therefore	therefore	RB
37894	736	5	,	,	,
37894	736	6	may	may	MD
37894	736	7	be	be	VB
37894	736	8	to	to	TO
37894	736	9	minimize	minimize	VB
37894	736	10	the	the	DT
37894	736	11	densities	density	NNS
37894	736	12	in	in	IN
37894	736	13	such	such	JJ
37894	736	14	situations	situation	NNS
37894	736	15	more	more	JJR
37894	736	16	than	than	IN
37894	736	17	is	be	VBZ
37894	736	18	justified	justify	VBN
37894	736	19	.	.	.
37894	737	1	However	however	RB
37894	737	2	,	,	,
37894	737	3	in	in	IN
37894	737	4	many	many	JJ
37894	737	5	,	,	,
37894	737	6	if	if	IN
37894	737	7	not	not	RB
37894	737	8	most	most	JJS
37894	737	9	,	,	,
37894	737	10	cases	case	NNS
37894	737	11	,	,	,
37894	737	12	the	the	DT
37894	737	13	plotting	plotting	NN
37894	737	14	of	of	IN
37894	737	15	the	the	DT
37894	737	16	actual	actual	JJ
37894	737	17	number	number	NN
37894	737	18	of	of	IN
37894	737	19	birds	bird	NNS
37894	737	20	seen	see	VBN
37894	737	21	,	,	,
37894	737	22	devoid	devoid	JJ
37894	737	23	of	of	IN
37894	737	24	any	any	DT
37894	737	25	mathematical	mathematical	JJ
37894	737	26	procedures	procedure	NNS
37894	737	27	,	,	,
37894	737	28	results	result	NNS
37894	737	29	in	in	IN
37894	737	30	an	an	DT
37894	737	31	ascending	ascending	NN
37894	737	32	and	and	CC
37894	737	33	descending	descend	VBG
37894	737	34	curve	curve	NN
37894	737	35	.	.	.
37894	738	1	[	[	-LRB-
37894	738	2	Illustration	illustration	NN
37894	738	3	:	:	:
37894	738	4	FIG	FIG	NNP
37894	738	5	.	.	.
37894	739	1	29	29	CD
37894	739	2	.	.	.
37894	740	1	Various	various	JJ
37894	740	2	types	type	NNS
37894	740	3	of	of	IN
37894	740	4	density	density	NN
37894	740	5	-	-	HYPH
37894	740	6	time	time	NN
37894	740	7	curves	curve	NNS
37894	740	8	.	.	.
37894	741	1	(	(	-LRB-
37894	741	2	A	a	NN
37894	741	3	)	)	-RRB-
37894	741	4	Near	near	IN
37894	741	5	typical	typical	JJ
37894	741	6	,	,	,
37894	741	7	Ottumwa	Ottumwa	NNP
37894	741	8	,	,	,
37894	741	9	April	April	NNP
37894	741	10	22	22	CD
37894	741	11	-	-	SYM
37894	741	12	23	23	CD
37894	741	13	;	;	:
37894	741	14	(	(	-LRB-
37894	741	15	B	b	NN
37894	741	16	)	)	-RRB-
37894	741	17	random	random	JJ
37894	741	18	fluctuation	fluctuation	NN
37894	741	19	,	,	,
37894	741	20	Stillwater	Stillwater	NNP
37894	741	21	,	,	,
37894	741	22	April	April	NNP
37894	741	23	23	23	CD
37894	741	24	-	-	SYM
37894	741	25	24	24	CD
37894	741	26	;	;	:
37894	741	27	(	(	-LRB-
37894	741	28	C	c	NN
37894	741	29	)	)	-RRB-
37894	741	30	bimodal	bimodal	NN
37894	741	31	,	,	,
37894	741	32	Knoxville	Knoxville	NNP
37894	741	33	,	,	,
37894	741	34	April	April	NNP
37894	741	35	22	22	CD
37894	741	36	-	-	SYM
37894	741	37	23	23	CD
37894	741	38	;	;	:
37894	741	39	(	(	-LRB-
37894	741	40	D	d	NN
37894	741	41	)	)	-RRB-
37894	741	42	sustained	sustained	JJ
37894	741	43	peak	peak	NN
37894	741	44	,	,	,
37894	741	45	Ottumwa	Ottumwa	NNP
37894	741	46	,	,	,
37894	741	47	April	April	NNP
37894	741	48	21	21	CD
37894	741	49	-	-	SYM
37894	741	50	22	22	CD
37894	741	51	;	;	:
37894	741	52	(	(	-LRB-
37894	741	53	E	e	NN
37894	741	54	)	)	-RRB-
37894	741	55	early	early	JJ
37894	741	56	peak	peak	NN
37894	741	57	,	,	,
37894	741	58	Oak	Oak	NNP
37894	741	59	Grove	Grove	NNP
37894	741	60	,	,	,
37894	741	61	May	May	NNP
37894	741	62	21	21	CD
37894	741	63	-	-	SYM
37894	741	64	22	22	CD
37894	741	65	;	;	:
37894	741	66	(	(	-LRB-
37894	741	67	F	f	NN
37894	741	68	)	)	-RRB-
37894	741	69	late	late	JJ
37894	741	70	peak	peak	NN
37894	741	71	,	,	,
37894	741	72	Memphis	Memphis	NNP
37894	741	73	,	,	,
37894	741	74	April	April	NNP
37894	741	75	23	23	CD
37894	741	76	-	-	SYM
37894	741	77	24	24	CD
37894	741	78	.	.	.
37894	741	79	]	]	-RRB-
37894	742	1	A	a	DT
37894	742	2	third	third	JJ
37894	742	3	hypothesis	hypothesis	NN
37894	742	4	proposes	propose	VBZ
37894	742	5	that	that	IN
37894	742	6	all	all	DT
37894	742	7	birds	bird	NNS
37894	742	8	take	take	VBP
37894	742	9	wing	wing	NN
37894	742	10	at	at	IN
37894	742	11	nearly	nearly	RB
37894	742	12	the	the	DT
37894	742	13	same	same	JJ
37894	742	14	time	time	NN
37894	742	15	,	,	,
37894	742	16	gradually	gradually	RB
37894	742	17	increase	increase	VB
37894	742	18	altitude	altitude	NN
37894	742	19	until	until	IN
37894	742	20	they	-PRON-	PRP
37894	742	21	reach	reach	VBP
37894	742	22	the	the	DT
37894	742	23	mid	mid	NN
37894	742	24	-	-	NN
37894	742	25	point	point	NN
37894	742	26	of	of	IN
37894	742	27	their	-PRON-	PRP$
37894	742	28	night	night	NN
37894	742	29	's	's	POS
37894	742	30	journey	journey	NN
37894	742	31	,	,	,
37894	742	32	and	and	CC
37894	742	33	then	then	RB
37894	742	34	begin	begin	VB
37894	742	35	a	a	DT
37894	742	36	similarly	similarly	RB
37894	742	37	slow	slow	JJ
37894	742	38	descent	descent	NN
37894	742	39	.	.	.
37894	743	1	Since	since	IN
37894	743	2	the	the	DT
37894	743	3	field	field	NN
37894	743	4	of	of	IN
37894	743	5	observation	observation	NN
37894	743	6	of	of	IN
37894	743	7	the	the	DT
37894	743	8	telescope	telescope	NN
37894	743	9	is	be	VBZ
37894	743	10	conical	conical	JJ
37894	743	11	,	,	,
37894	743	12	it	-PRON-	PRP
37894	743	13	is	be	VBZ
37894	743	14	assumed	assume	VBN
37894	743	15	that	that	IN
37894	743	16	the	the	DT
37894	743	17	higher	high	JJR
37894	743	18	the	the	DT
37894	743	19	birds	bird	NNS
37894	743	20	arise	arise	VBP
37894	743	21	into	into	IN
37894	743	22	the	the	DT
37894	743	23	sky	sky	NN
37894	743	24	the	the	DT
37894	743	25	more	more	RBR
37894	743	26	they	-PRON-	PRP
37894	743	27	increase	increase	VBP
37894	743	28	their	-PRON-	PRP$
37894	743	29	chances	chance	NNS
37894	743	30	of	of	IN
37894	743	31	being	be	VBG
37894	743	32	seen	see	VBN
37894	743	33	.	.	.
37894	744	1	According	accord	VBG
37894	744	2	to	to	IN
37894	744	3	this	this	DT
37894	744	4	view	view	NN
37894	744	5	,	,	,
37894	744	6	the	the	DT
37894	744	7	changes	change	NNS
37894	744	8	in	in	IN
37894	744	9	the	the	DT
37894	744	10	density	density	NN
37894	744	11	curve	curve	NN
37894	744	12	represent	represent	NN
37894	744	13	changes	change	NNS
37894	744	14	in	in	IN
37894	744	15	the	the	DT
37894	744	16	opportunity	opportunity	NN
37894	744	17	to	to	TO
37894	744	18	see	see	VB
37894	744	19	birds	bird	NNS
37894	744	20	rather	rather	RB
37894	744	21	than	than	IN
37894	744	22	an	an	DT
37894	744	23	increase	increase	NN
37894	744	24	or	or	CC
37894	744	25	decrease	decrease	NN
37894	744	26	in	in	IN
37894	744	27	the	the	DT
37894	744	28	actual	actual	JJ
37894	744	29	number	number	NN
37894	744	30	of	of	IN
37894	744	31	migrants	migrant	NNS
37894	744	32	in	in	IN
37894	744	33	the	the	DT
37894	744	34	air	air	NN
37894	744	35	.	.	.
37894	745	1	Although	although	IN
37894	745	2	measurements	measurement	NNS
37894	745	3	of	of	IN
37894	745	4	flight	flight	NN
37894	745	5	altitude	altitude	NN
37894	745	6	at	at	IN
37894	745	7	various	various	JJ
37894	745	8	hours	hour	NNS
37894	745	9	of	of	IN
37894	745	10	the	the	DT
37894	745	11	night	night	NN
37894	745	12	have	have	VBP
37894	745	13	not	not	RB
37894	745	14	been	be	VBN
37894	745	15	made	make	VBN
37894	745	16	in	in	IN
37894	745	17	sufficient	sufficient	JJ
37894	745	18	number	number	NN
37894	745	19	to	to	TO
37894	745	20	subject	subject	VB
37894	745	21	this	this	DT
37894	745	22	idea	idea	NN
37894	745	23	to	to	TO
37894	745	24	direct	direct	VB
37894	745	25	test	test	NN
37894	745	26	,	,	,
37894	745	27	it	-PRON-	PRP
37894	745	28	is	be	VBZ
37894	745	29	hardly	hardly	RB
37894	745	30	worthy	worthy	JJ
37894	745	31	of	of	IN
37894	745	32	serious	serious	JJ
37894	745	33	consideration	consideration	NN
37894	745	34	.	.	.
37894	746	1	The	the	DT
37894	746	2	fallacy	fallacy	NN
37894	746	3	in	in	IN
37894	746	4	the	the	DT
37894	746	5	hypothesis	hypothesis	NN
37894	746	6	is	be	VBZ
37894	746	7	that	that	IN
37894	746	8	the	the	DT
37894	746	9	cone	cone	NN
37894	746	10	of	of	IN
37894	746	11	observation	observation	NN
37894	746	12	itself	-PRON-	PRP
37894	746	13	would	would	MD
37894	746	14	be	be	VB
37894	746	15	rising	rise	VBG
37894	746	16	with	with	IN
37894	746	17	the	the	DT
37894	746	18	rising	rise	VBG
37894	746	19	birds	bird	NNS
37894	746	20	so	so	IN
37894	746	21	that	that	IN
37894	746	22	actually	actually	RB
37894	746	23	the	the	DT
37894	746	24	greatest	great	JJS
37894	746	25	proportion	proportion	NN
37894	746	26	of	of	IN
37894	746	27	birds	bird	NNS
37894	746	28	flying	fly	VBG
37894	746	29	would	would	MD
37894	746	30	still	still	RB
37894	746	31	be	be	VB
37894	746	32	seen	see	VBN
37894	746	33	when	when	WRB
37894	746	34	the	the	DT
37894	746	35	field	field	NN
37894	746	36	of	of	IN
37894	746	37	observation	observation	NN
37894	746	38	is	be	VBZ
37894	746	39	in	in	IN
37894	746	40	the	the	DT
37894	746	41	supine	supine	NN
37894	746	42	position	position	NN
37894	746	43	of	of	IN
37894	746	44	early	early	JJ
37894	746	45	evening	evening	NN
37894	746	46	.	.	.
37894	747	1	It	-PRON-	PRP
37894	747	2	can	can	MD
37894	747	3	not	not	RB
37894	747	4	be	be	VB
37894	747	5	too	too	RB
37894	747	6	strongly	strongly	RB
37894	747	7	emphasized	emphasize	VBN
37894	747	8	that	that	IN
37894	747	9	the	the	DT
37894	747	10	over	over	RB
37894	747	11	-	-	HYPH
37894	747	12	all	all	DT
37894	747	13	time	time	NN
37894	747	14	curves	curve	NNS
37894	747	15	just	just	RB
37894	747	16	discussed	discuss	VBN
37894	747	17	have	have	VBP
37894	747	18	been	be	VBN
37894	747	19	derived	derive	VBN
37894	747	20	from	from	IN
37894	747	21	a	a	DT
37894	747	22	series	series	NN
37894	747	23	of	of	IN
37894	747	24	individual	individual	JJ
37894	747	25	curves	curve	NNS
37894	747	26	,	,	,
37894	747	27	some	some	DT
37894	747	28	of	of	IN
37894	747	29	which	which	WDT
37894	747	30	differ	differ	VBP
37894	747	31	radically	radically	RB
37894	747	32	from	from	IN
37894	747	33	the	the	DT
37894	747	34	composite	composite	JJ
37894	747	35	pattern	pattern	NN
37894	747	36	.	.	.
37894	748	1	In	in	IN
37894	748	2	Figure	figure	NN
37894	748	3	29	29	CD
37894	748	4	,	,	,
37894	748	5	six	six	CD
37894	748	6	dissimilar	dissimilar	JJ
37894	748	7	types	type	NNS
37894	748	8	are	be	VBP
37894	748	9	shown	show	VBN
37894	748	10	.	.	.
37894	749	1	This	this	DT
37894	749	2	variation	variation	NN
37894	749	3	is	be	VBZ
37894	749	4	not	not	RB
37894	749	5	surprising	surprising	JJ
37894	749	6	in	in	IN
37894	749	7	view	view	NN
37894	749	8	of	of	IN
37894	749	9	the	the	DT
37894	749	10	fact	fact	NN
37894	749	11	that	that	IN
37894	749	12	many	many	JJ
37894	749	13	other	other	JJ
37894	749	14	causative	causative	JJ
37894	749	15	factors	factor	NNS
37894	749	16	aside	aside	RB
37894	749	17	from	from	IN
37894	749	18	time	time	NN
37894	749	19	operate	operate	VB
37894	749	20	on	on	IN
37894	749	21	the	the	DT
37894	749	22	flow	flow	NN
37894	749	23	of	of	IN
37894	749	24	birds	bird	NNS
37894	749	25	from	from	IN
37894	749	26	hour	hour	NN
37894	749	27	to	to	IN
37894	749	28	hour	hour	NN
37894	749	29	.	.	.
37894	750	1	Figure	Figure	NNP
37894	750	2	29A	29A	NNP
37894	750	3	illustrates	illustrate	VBZ
37894	750	4	how	how	WRB
37894	750	5	closely	closely	RB
37894	750	6	some	some	DT
37894	750	7	individual	individual	JJ
37894	750	8	patterns	pattern	NNS
37894	750	9	conform	conform	VBP
37894	750	10	with	with	IN
37894	750	11	the	the	DT
37894	750	12	average	average	NN
37894	750	13	.	.	.
37894	751	1	Figure	Figure	NNP
37894	751	2	29B	29B	NNP
37894	751	3	is	be	VBZ
37894	751	4	an	an	DT
37894	751	5	example	example	NN
37894	751	6	of	of	IN
37894	751	7	a	a	DT
37894	751	8	random	random	JJ
37894	751	9	type	type	NN
37894	751	10	of	of	IN
37894	751	11	fluctuation	fluctuation	NN
37894	751	12	with	with	IN
37894	751	13	no	no	DT
37894	751	14	pronounced	pronounced	JJ
37894	751	15	time	time	NN
37894	751	16	character	character	NN
37894	751	17	.	.	.
37894	752	1	It	-PRON-	PRP
37894	752	2	is	be	VBZ
37894	752	3	an	an	DT
37894	752	4	effect	effect	NN
37894	752	5	rarely	rarely	RB
37894	752	6	observed	observe	VBN
37894	752	7	,	,	,
37894	752	8	occurring	occur	VBG
37894	752	9	only	only	RB
37894	752	10	in	in	IN
37894	752	11	the	the	DT
37894	752	12	cases	case	NNS
37894	752	13	where	where	WRB
37894	752	14	the	the	DT
37894	752	15	number	number	NN
37894	752	16	of	of	IN
37894	752	17	birds	bird	NNS
37894	752	18	observed	observe	VBN
37894	752	19	is	be	VBZ
37894	752	20	so	so	RB
37894	752	21	small	small	JJ
37894	752	22	that	that	IN
37894	752	23	pure	pure	JJ
37894	752	24	chance	chance	NN
37894	752	25	has	have	VBZ
37894	752	26	a	a	DT
37894	752	27	pronounced	pronounced	JJ
37894	752	28	effect	effect	NN
37894	752	29	on	on	IN
37894	752	30	the	the	DT
37894	752	31	computed	compute	VBN
37894	752	32	densities	density	NNS
37894	752	33	;	;	:
37894	752	34	its	-PRON-	PRP$
37894	752	35	vacillations	vacillation	NNS
37894	752	36	are	be	VBP
37894	752	37	explicable	explicable	JJ
37894	752	38	on	on	IN
37894	752	39	that	that	DT
37894	752	40	account	account	NN
37894	752	41	alone	alone	RB
37894	752	42	.	.	.
37894	753	1	Errors	error	NNS
37894	753	2	of	of	IN
37894	753	3	sampling	sampling	NN
37894	753	4	may	may	MD
37894	753	5	similarly	similarly	RB
37894	753	6	account	account	VB
37894	753	7	for	for	IN
37894	753	8	some	some	DT
37894	753	9	,	,	,
37894	753	10	though	though	IN
37894	753	11	not	not	RB
37894	753	12	all	all	DT
37894	753	13	,	,	,
37894	753	14	of	of	IN
37894	753	15	the	the	DT
37894	753	16	curves	curve	NNS
37894	753	17	of	of	IN
37894	753	18	the	the	DT
37894	753	19	bimodal	bimodal	JJ
37894	753	20	type	type	NN
37894	753	21	shown	show	VBN
37894	753	22	in	in	IN
37894	753	23	Figure	figure	NN
37894	753	24	29C.	29c.	CD
37894	754	1	Some	some	DT
37894	754	2	variation	variation	NN
37894	754	3	in	in	IN
37894	754	4	the	the	DT
37894	754	5	curves	curve	NNS
37894	754	6	might	may	MD
37894	754	7	be	be	VB
37894	754	8	ascribed	ascribe	VBN
37894	754	9	to	to	IN
37894	754	10	the	the	DT
37894	754	11	variations	variation	NNS
37894	754	12	in	in	IN
37894	754	13	kinds	kind	NNS
37894	754	14	of	of	IN
37894	754	15	species	specie	NNS
37894	754	16	comprising	comprise	VBG
37894	754	17	the	the	DT
37894	754	18	individual	individual	JJ
37894	754	19	flights	flight	NNS
37894	754	20	at	at	IN
37894	754	21	different	different	JJ
37894	754	22	times	time	NNS
37894	754	23	at	at	IN
37894	754	24	different	different	JJ
37894	754	25	places	place	NNS
37894	754	26	,	,	,
37894	754	27	provided	provide	VBN
37894	754	28	that	that	IN
37894	754	29	it	-PRON-	PRP
37894	754	30	could	could	MD
37894	754	31	be	be	VB
37894	754	32	demonstrated	demonstrate	VBN
37894	754	33	that	that	IN
37894	754	34	different	different	JJ
37894	754	35	species	specie	NNS
37894	754	36	of	of	IN
37894	754	37	birds	bird	NNS
37894	754	38	show	show	VBP
37894	754	39	dissimilar	dissimilar	JJ
37894	754	40	temporal	temporal	JJ
37894	754	41	patterns	pattern	NNS
37894	754	42	.	.	.
37894	755	1	The	the	DT
37894	755	2	other	other	JJ
37894	755	3	atypical	atypical	JJ
37894	755	4	patterns	pattern	NNS
37894	755	5	are	be	VBP
37894	755	6	not	not	RB
37894	755	7	so	so	RB
37894	755	8	easily	easily	RB
37894	755	9	dismissed	dismiss	VBN
37894	755	10	and	and	CC
37894	755	11	will	will	MD
37894	755	12	be	be	VB
37894	755	13	the	the	DT
37894	755	14	subject	subject	NN
37894	755	15	of	of	IN
37894	755	16	inquiry	inquiry	NN
37894	755	17	in	in	IN
37894	755	18	the	the	DT
37894	755	19	discussions	discussion	NNS
37894	755	20	that	that	WDT
37894	755	21	follow	follow	VBP
37894	755	22	.	.	.
37894	756	1	It	-PRON-	PRP
37894	756	2	is	be	VBZ
37894	756	3	significant	significant	JJ
37894	756	4	that	that	IN
37894	756	5	in	in	IN
37894	756	6	spite	spite	NN
37894	756	7	of	of	IN
37894	756	8	the	the	DT
37894	756	9	variety	variety	NN
37894	756	10	of	of	IN
37894	756	11	the	the	DT
37894	756	12	curves	curve	NNS
37894	756	13	depicted	depict	VBN
37894	756	14	,	,	,
37894	756	15	which	which	WDT
37894	756	16	represent	represent	VBP
37894	756	17	every	every	DT
37894	756	18	condition	condition	NN
37894	756	19	encountered	encounter	VBN
37894	756	20	,	,	,
37894	756	21	in	in	IN
37894	756	22	not	not	RB
37894	756	23	a	a	DT
37894	756	24	single	single	JJ
37894	756	25	instance	instance	NN
37894	756	26	is	be	VBZ
37894	756	27	the	the	DT
37894	756	28	density	density	NN
37894	756	29	sustained	sustain	VBN
37894	756	30	at	at	IN
37894	756	31	a	a	DT
37894	756	32	high	high	JJ
37894	756	33	level	level	NN
37894	756	34	throughout	throughout	IN
37894	756	35	the	the	DT
37894	756	36	night	night	NN
37894	756	37	.	.	.
37894	757	1	Moreover	moreover	RB
37894	757	2	,	,	,
37894	757	3	these	these	DT
37894	757	4	dissident	dissident	JJ
37894	757	5	patterns	pattern	NNS
37894	757	6	merge	merge	VBP
37894	757	7	into	into	IN
37894	757	8	a	a	DT
37894	757	9	remarkably	remarkably	RB
37894	757	10	harmonious	harmonious	JJ
37894	757	11	,	,	,
37894	757	12	almost	almost	RB
37894	757	13	normal	normal	JJ
37894	757	14	,	,	,
37894	757	15	average	average	JJ
37894	757	16	curve	curve	NN
37894	757	17	.	.	.
37894	758	1	When	when	WRB
37894	758	2	,	,	,
37894	758	3	at	at	IN
37894	758	4	some	some	DT
37894	758	5	future	future	JJ
37894	758	6	date	date	NN
37894	758	7	,	,	,
37894	758	8	suitable	suitable	JJ
37894	758	9	data	datum	NNS
37894	758	10	are	be	VBP
37894	758	11	available	available	JJ
37894	758	12	,	,	,
37894	758	13	it	-PRON-	PRP
37894	758	14	would	would	MD
37894	758	15	be	be	VB
37894	758	16	highly	highly	RB
37894	758	17	desirable	desirable	JJ
37894	758	18	to	to	TO
37894	758	19	study	study	VB
37894	758	20	the	the	DT
37894	758	21	average	average	JJ
37894	758	22	monthly	monthly	JJ
37894	758	23	time	time	NN
37894	758	24	patterns	pattern	NNS
37894	758	25	to	to	TO
37894	758	26	ascertain	ascertain	VB
37894	758	27	to	to	IN
37894	758	28	what	what	WDT
37894	758	29	extent	extent	NN
37894	758	30	they	-PRON-	PRP
37894	758	31	may	may	MD
37894	758	32	deviate	deviate	VB
37894	758	33	from	from	IN
37894	758	34	the	the	DT
37894	758	35	over	over	RB
37894	758	36	-	-	HYPH
37894	758	37	all	all	DT
37894	758	38	average	average	JJ
37894	758	39	.	.	.
37894	759	1	At	at	IN
37894	759	2	present	present	NN
37894	759	3	this	this	DT
37894	759	4	is	be	VBZ
37894	759	5	not	not	RB
37894	759	6	justifiable	justifiable	JJ
37894	759	7	because	because	IN
37894	759	8	there	there	EX
37894	759	9	are	be	VBP
37894	759	10	not	not	RB
37894	759	11	yet	yet	RB
37894	759	12	enough	enough	JJ
37894	759	13	sets	set	NNS
37894	759	14	of	of	IN
37894	759	15	data	datum	NNS
37894	759	16	in	in	IN
37894	759	17	any	any	DT
37894	759	18	two	two	CD
37894	759	19	months	month	NNS
37894	759	20	representing	represent	VBG
37894	759	21	the	the	DT
37894	759	22	same	same	JJ
37894	759	23	selection	selection	NN
37894	759	24	of	of	IN
37894	759	25	stations	station	NNS
37894	759	26	.	.	.
37894	760	1	_	_	NNP
37894	760	2	Correlations	Correlations	NNPS
37894	760	3	with	with	IN
37894	760	4	Other	Other	NNP
37894	760	5	Data	Data	NNPS
37894	760	6	_	_	NNP
37894	760	7	It	-PRON-	PRP
37894	760	8	is	be	VBZ
37894	760	9	especially	especially	RB
37894	760	10	interesting	interesting	JJ
37894	760	11	to	to	TO
37894	760	12	note	note	VB
37894	760	13	that	that	IN
37894	760	14	the	the	DT
37894	760	15	data	datum	NNS
37894	760	16	pertaining	pertain	VBG
37894	760	17	to	to	IN
37894	760	18	this	this	DT
37894	760	19	problem	problem	NN
37894	760	20	derived	derive	VBN
37894	760	21	from	from	IN
37894	760	22	other	other	JJ
37894	760	23	methods	method	NNS
37894	760	24	of	of	IN
37894	760	25	inquiry	inquiry	NN
37894	760	26	fit	fit	VBP
37894	760	27	the	the	DT
37894	760	28	conclusions	conclusion	NNS
37894	760	29	adduced	adduce	VBN
37894	760	30	by	by	IN
37894	760	31	the	the	DT
37894	760	32	telescopic	telescopic	NNP
37894	760	33	method	method	NN
37894	760	34	.	.	.
37894	761	1	Overing	overe	VBG
37894	761	2	(	(	-LRB-
37894	761	3	1938	1938	CD
37894	761	4	)	)	-RRB-
37894	761	5	,	,	,
37894	761	6	who	who	WP
37894	761	7	for	for	IN
37894	761	8	several	several	JJ
37894	761	9	years	year	NNS
37894	761	10	kept	keep	VBD
37894	761	11	records	record	NNS
37894	761	12	of	of	IN
37894	761	13	birds	bird	NNS
37894	761	14	striking	strike	VBG
37894	761	15	the	the	DT
37894	761	16	Washington	Washington	NNP
37894	761	17	Monument	Monument	NNP
37894	761	18	,	,	,
37894	761	19	stated	state	VBD
37894	761	20	that	that	IN
37894	761	21	the	the	DT
37894	761	22	record	record	NN
37894	761	23	number	number	NN
37894	761	24	of	of	IN
37894	761	25	576	576	CD
37894	761	26	individuals	individual	NNS
37894	761	27	killed	kill	VBN
37894	761	28	on	on	IN
37894	761	29	the	the	DT
37894	761	30	night	night	NN
37894	761	31	of	of	IN
37894	761	32	September	September	NNP
37894	761	33	12	12	CD
37894	761	34	,	,	,
37894	761	35	1937	1937	CD
37894	761	36	,	,	,
37894	761	37	all	all	DT
37894	761	38	came	come	VBD
37894	761	39	down	down	RP
37894	761	40	between	between	IN
37894	761	41	10:30	10:30	CD
37894	761	42	P.	P.	NNP
37894	761	43	M.	M.	NNP
37894	761	44	and	and	CC
37894	761	45	midnight	midnight	NN
37894	761	46	.	.	.
37894	762	1	His	-PRON-	PRP$
37894	762	2	report	report	NN
37894	762	3	of	of	IN
37894	762	4	the	the	DT
37894	762	5	mortality	mortality	NN
37894	762	6	on	on	IN
37894	762	7	other	other	JJ
37894	762	8	nights	night	NNS
37894	762	9	fails	fail	VBZ
37894	762	10	to	to	TO
37894	762	11	mention	mention	VB
37894	762	12	the	the	DT
37894	762	13	time	time	NN
37894	762	14	factor	factor	NN
37894	762	15	,	,	,
37894	762	16	but	but	CC
37894	762	17	I	-PRON-	PRP
37894	762	18	am	be	VBP
37894	762	19	recently	recently	RB
37894	762	20	informed	inform	VBN
37894	762	21	by	by	IN
37894	762	22	Frederick	Frederick	NNP
37894	762	23	C.	C.	NNP
37894	762	24	Lincoln	Lincoln	NNP
37894	762	25	(	(	-LRB-
37894	762	26	_	_	NNP
37894	762	27	in	in	IN
37894	762	28	litt	litt	NNP
37894	762	29	.	.	.
37894	762	30	_	_	NNP
37894	762	31	)	)	-RRB-
37894	762	32	that	that	IN
37894	762	33	it	-PRON-	PRP
37894	762	34	is	be	VBZ
37894	762	35	typical	typical	JJ
37894	762	36	for	for	IN
37894	762	37	birds	bird	NNS
37894	762	38	to	to	TO
37894	762	39	strike	strike	VB
37894	762	40	the	the	DT
37894	762	41	monument	monument	NN
37894	762	42	in	in	IN
37894	762	43	greatest	great	JJS
37894	762	44	numbers	number	NNS
37894	762	45	between	between	IN
37894	762	46	ten	ten	CD
37894	762	47	and	and	CC
37894	762	48	twelve	twelve	CD
37894	762	49	o'clock	o'clock	NN
37894	762	50	at	at	IN
37894	762	51	night	night	NN
37894	762	52	.	.	.
37894	763	1	At	at	IN
37894	763	2	the	the	DT
37894	763	3	latter	latter	JJ
37894	763	4	time	time	NN
37894	763	5	the	the	DT
37894	763	6	lights	light	NNS
37894	763	7	illuminating	illuminate	VBG
37894	763	8	the	the	DT
37894	763	9	shaft	shaft	NN
37894	763	10	are	be	VBP
37894	763	11	extinguished	extinguish	VBN
37894	763	12	,	,	,
37894	763	13	thus	thus	RB
37894	763	14	resulting	result	VBG
37894	763	15	in	in	IN
37894	763	16	few	few	JJ
37894	763	17	or	or	CC
37894	763	18	no	no	DT
37894	763	19	casualties	casualty	NNS
37894	763	20	after	after	IN
37894	763	21	midnight	midnight	NN
37894	763	22	.	.	.
37894	764	1	The	the	DT
37894	764	2	recent	recent	JJ
37894	764	3	report	report	NN
37894	764	4	by	by	IN
37894	764	5	Spofford	Spofford	NNP
37894	764	6	(	(	-LRB-
37894	764	7	1949	1949	CD
37894	764	8	)	)	-RRB-
37894	764	9	of	of	IN
37894	764	10	over	over	IN
37894	764	11	300	300	CD
37894	764	12	birds	bird	NNS
37894	764	13	killed	kill	VBN
37894	764	14	or	or	CC
37894	764	15	incapacitated	incapacitate	VBN
37894	764	16	at	at	IN
37894	764	17	the	the	DT
37894	764	18	Nashville	Nashville	NNP
37894	764	19	airport	airport	NN
37894	764	20	on	on	IN
37894	764	21	the	the	DT
37894	764	22	night	night	NN
37894	764	23	of	of	IN
37894	764	24	September	September	NNP
37894	764	25	9	9	CD
37894	764	26	-	-	SYM
37894	764	27	10	10	CD
37894	764	28	,	,	,
37894	764	29	1948	1948	CD
37894	764	30	,	,	,
37894	764	31	after	after	IN
37894	764	32	flying	fly	VBG
37894	764	33	into	into	IN
37894	764	34	the	the	DT
37894	764	35	light	light	JJ
37894	764	36	beam	beam	NN
37894	764	37	from	from	IN
37894	764	38	a	a	DT
37894	764	39	ceilometer	ceilometer	NN
37894	764	40	,	,	,
37894	764	41	is	be	VBZ
37894	764	42	of	of	IN
37894	764	43	interest	interest	NN
37894	764	44	in	in	IN
37894	764	45	this	this	DT
37894	764	46	connection	connection	NN
37894	764	47	even	even	RB
37894	764	48	though	though	IN
37894	764	49	the	the	DT
37894	764	50	cause	cause	NN
37894	764	51	of	of	IN
37894	764	52	the	the	DT
37894	764	53	fatality	fatality	NN
37894	764	54	is	be	VBZ
37894	764	55	shrouded	shroud	VBN
37894	764	56	in	in	IN
37894	764	57	mystery	mystery	NN
37894	764	58	.	.	.
37894	765	1	It	-PRON-	PRP
37894	765	2	may	may	MD
37894	765	3	be	be	VB
37894	765	4	noted	note	VBN
37894	765	5	,	,	,
37894	765	6	however	however	RB
37894	765	7	,	,	,
37894	765	8	that	that	IN
37894	765	9	"	"	``
37894	765	10	most	most	JJS
37894	765	11	of	of	IN
37894	765	12	the	the	DT
37894	765	13	birds	bird	NNS
37894	765	14	fell	fall	VBD
37894	765	15	in	in	IN
37894	765	16	the	the	DT
37894	765	17	first	first	JJ
37894	765	18	hour	hour	NN
37894	765	19	,	,	,
37894	765	20	"	"	''
37894	765	21	which	which	WDT
37894	765	22	,	,	,
37894	765	23	according	accord	VBG
37894	765	24	to	to	IN
37894	765	25	the	the	DT
37894	765	26	account	account	NN
37894	765	27	,	,	,
37894	765	28	was	be	VBD
37894	765	29	between	between	IN
37894	765	30	12:30	12:30	CD
37894	765	31	A.	a.	NN
37894	765	32	M.	M.	NNP
37894	765	33	and	and	CC
37894	765	34	1:30	1:30	CD
37894	765	35	A.	a.	NN
37894	765	36	M.	M.	NNP
37894	765	37	Furthermore	Furthermore	NNP
37894	765	38	,	,	,
37894	765	39	birds	bird	NNS
37894	765	40	killed	kill	VBN
37894	765	41	at	at	IN
37894	765	42	the	the	DT
37894	765	43	Empire	Empire	NNP
37894	765	44	State	State	NNP
37894	765	45	Building	Building	NNP
37894	765	46	in	in	IN
37894	765	47	New	New	NNP
37894	765	48	York	York	NNP
37894	765	49	on	on	IN
37894	765	50	the	the	DT
37894	765	51	night	night	NN
37894	765	52	of	of	IN
37894	765	53	September	September	NNP
37894	765	54	10	10	CD
37894	765	55	-	-	SYM
37894	765	56	11	11	CD
37894	765	57	,	,	,
37894	765	58	1948	1948	CD
37894	765	59	,	,	,
37894	765	60	began	begin	VBD
37894	765	61	to	to	TO
37894	765	62	strike	strike	VB
37894	765	63	the	the	DT
37894	765	64	tower	tower	NN
37894	765	65	"	"	''
37894	765	66	shortly	shortly	RB
37894	765	67	after	after	IN
37894	765	68	midnight	midnight	NN
37894	765	69	"	"	''
37894	765	70	(	(	-LRB-
37894	765	71	Pough	Pough	NNP
37894	765	72	,	,	,
37894	765	73	1948	1948	CD
37894	765	74	)	)	-RRB-
37894	765	75	.	.	.
37894	766	1	Also	also	RB
37894	766	2	it	-PRON-	PRP
37894	766	3	will	will	MD
37894	766	4	be	be	VB
37894	766	5	recalled	recall	VBN
37894	766	6	that	that	IN
37894	766	7	the	the	DT
37894	766	8	observations	observation	NNS
37894	766	9	of	of	IN
37894	766	10	Stone	Stone	NNP
37894	766	11	(	(	-LRB-
37894	766	12	_	_	NNP
37894	766	13	loc	loc	NNP
37894	766	14	.	.	.
37894	767	1	cit	cit	NNP
37894	767	2	.	.	.
37894	767	3	_	_	NNP
37894	767	4	)	)	-RRB-
37894	767	5	,	,	,
37894	767	6	already	already	RB
37894	767	7	referred	refer	VBD
37894	767	8	to	to	IN
37894	767	9	in	in	IN
37894	767	10	this	this	DT
37894	767	11	paper	paper	NN
37894	767	12	(	(	-LRB-
37894	767	13	page	page	NN
37894	767	14	410	410	CD
37894	767	15	)	)	-RRB-
37894	767	16	,	,	,
37894	767	17	show	show	VB
37894	767	18	a	a	DT
37894	767	19	situation	situation	NN
37894	767	20	where	where	WRB
37894	767	21	the	the	DT
37894	767	22	flight	flight	NN
37894	767	23	in	in	IN
37894	767	24	the	the	DT
37894	767	25	early	early	JJ
37894	767	26	part	part	NN
37894	767	27	of	of	IN
37894	767	28	the	the	DT
37894	767	29	night	night	NN
37894	767	30	was	be	VBD
37894	767	31	negligible	negligible	JJ
37894	767	32	but	but	CC
37894	767	33	mounted	mount	VBD
37894	767	34	to	to	IN
37894	767	35	a	a	DT
37894	767	36	peak	peak	NN
37894	767	37	between	between	IN
37894	767	38	ten	ten	CD
37894	767	39	and	and	CC
37894	767	40	eleven	eleven	CD
37894	767	41	o'clock	o'clock	NN
37894	767	42	,	,	,
37894	767	43	with	with	IN
37894	767	44	continuing	continue	VBG
37894	767	45	activity	activity	NN
37894	767	46	at	at	IN
37894	767	47	least	least	JJS
37894	767	48	until	until	IN
37894	767	49	midnight	midnight	NN
37894	767	50	.	.	.
37894	768	1	All	all	DT
37894	768	2	of	of	IN
37894	768	3	these	these	DT
37894	768	4	observations	observation	NNS
37894	768	5	are	be	VBP
37894	768	6	of	of	IN
37894	768	7	significance	significance	NN
37894	768	8	in	in	IN
37894	768	9	connection	connection	NN
37894	768	10	with	with	IN
37894	768	11	the	the	DT
37894	768	12	conclusions	conclusion	NNS
37894	768	13	herein	herein	NNP
37894	768	14	advanced	advance	VBD
37894	768	15	,	,	,
37894	768	16	but	but	CC
37894	768	17	by	by	IN
37894	768	18	far	far	RB
37894	768	19	the	the	DT
37894	768	20	most	most	RBS
37894	768	21	striking	striking	JJ
37894	768	22	correlation	correlation	NN
37894	768	23	between	between	IN
37894	768	24	these	these	DT
37894	768	25	present	present	JJ
37894	768	26	results	result	NNS
37894	768	27	and	and	CC
37894	768	28	other	other	JJ
37894	768	29	evidences	evidence	NNS
37894	768	30	is	be	VBZ
37894	768	31	found	find	VBN
37894	768	32	in	in	IN
37894	768	33	the	the	DT
37894	768	34	highly	highly	RB
37894	768	35	important	important	JJ
37894	768	36	work	work	NN
37894	768	37	of	of	IN
37894	768	38	various	various	JJ
37894	768	39	European	european	JJ
37894	768	40	investigators	investigator	NNS
37894	768	41	studying	study	VBG
37894	768	42	the	the	DT
37894	768	43	activity	activity	NN
37894	768	44	of	of	IN
37894	768	45	caged	cage	VBN
37894	768	46	migratory	migratory	JJ
37894	768	47	birds	bird	NNS
37894	768	48	.	.	.
37894	769	1	This	this	DT
37894	769	2	work	work	NN
37894	769	3	was	be	VBD
37894	769	4	recently	recently	RB
37894	769	5	reviewed	review	VBN
37894	769	6	and	and	CC
37894	769	7	extended	extend	VBN
37894	769	8	by	by	IN
37894	769	9	Palmgren	Palmgren	NNP
37894	769	10	(	(	-LRB-
37894	769	11	1944	1944	CD
37894	769	12	)	)	-RRB-
37894	769	13	in	in	IN
37894	769	14	the	the	DT
37894	769	15	most	most	RBS
37894	769	16	comprehensive	comprehensive	JJ
37894	769	17	treatise	treatise	NN
37894	769	18	on	on	IN
37894	769	19	the	the	DT
37894	769	20	subject	subject	NN
37894	769	21	yet	yet	CC
37894	769	22	published	publish	VBN
37894	769	23	.	.	.
37894	770	1	Palmgren	Palmgren	NNP
37894	770	2	recorded	record	VBD
37894	770	3	,	,	,
37894	770	4	by	by	IN
37894	770	5	an	an	DT
37894	770	6	electrically	electrically	RB
37894	770	7	operated	operate	VBN
37894	770	8	apparatus	apparatus	NN
37894	770	9	,	,	,
37894	770	10	the	the	DT
37894	770	11	seasonal	seasonal	JJ
37894	770	12	,	,	,
37894	770	13	daily	daily	JJ
37894	770	14	,	,	,
37894	770	15	and	and	CC
37894	770	16	hourly	hourly	JJ
37894	770	17	activity	activity	NN
37894	770	18	patterns	pattern	NNS
37894	770	19	in	in	IN
37894	770	20	caged	cage	VBN
37894	770	21	examples	example	NNS
37894	770	22	of	of	IN
37894	770	23	two	two	CD
37894	770	24	typical	typical	JJ
37894	770	25	European	european	JJ
37894	770	26	migrants	migrant	NNS
37894	770	27	,	,	,
37894	770	28	_	_	NNP
37894	770	29	Turdus	Turdus	NNP
37894	770	30	ericetorum	ericetorum	NN
37894	770	31	philomelas	philomela	NNS
37894	770	32	_	_	NNP
37894	770	33	Brehm	Brehm	NNP
37894	770	34	and	and	CC
37894	770	35	_	_	NNP
37894	770	36	Erithacus	Erithacus	NNP
37894	770	37	rubecula	rubecula	NN
37894	770	38	_	_	NNP
37894	770	39	(	(	-LRB-
37894	770	40	Linnaeus	Linnaeus	NNP
37894	770	41	)	)	-RRB-
37894	770	42	.	.	.
37894	771	1	Four	four	CD
37894	771	2	rather	rather	RB
37894	771	3	distinct	distinct	JJ
37894	771	4	seasonal	seasonal	JJ
37894	771	5	phases	phase	NNS
37894	771	6	in	in	IN
37894	771	7	activity	activity	NN
37894	771	8	of	of	IN
37894	771	9	the	the	DT
37894	771	10	birds	bird	NNS
37894	771	11	were	be	VBD
37894	771	12	discerned	discern	VBN
37894	771	13	:	:	:
37894	771	14	_	_	NNP
37894	771	15	winter	winter	NN
37894	771	16	non	non	JJ
37894	771	17	-	-	JJ
37894	771	18	migratory	migratory	JJ
37894	771	19	_	_	NNP
37894	771	20	,	,	,
37894	771	21	_	_	NNP
37894	771	22	spring	spring	NN
37894	771	23	migratory	migratory	NN
37894	771	24	_	_	NNP
37894	771	25	,	,	,
37894	771	26	_	_	NNP
37894	771	27	summer	summer	NN
37894	771	28	non	non	JJ
37894	771	29	-	-	JJ
37894	771	30	migratory	migratory	JJ
37894	771	31	_	_	NNP
37894	771	32	,	,	,
37894	771	33	and	and	CC
37894	771	34	_	_	NNP
37894	771	35	autumn	autumn	NN
37894	771	36	migratory	migratory	NN
37894	771	37	_	_	NNP
37894	771	38	.	.	.
37894	772	1	The	the	DT
37894	772	2	first	first	JJ
37894	772	3	of	of	IN
37894	772	4	these	these	DT
37894	772	5	is	be	VBZ
37894	772	6	distinguished	distinguish	VBN
37894	772	7	by	by	IN
37894	772	8	morning	morning	NN
37894	772	9	and	and	CC
37894	772	10	evening	evening	NN
37894	772	11	maxima	maxima	NN
37894	772	12	of	of	IN
37894	772	13	activity	activity	NN
37894	772	14	,	,	,
37894	772	15	the	the	DT
37894	772	16	latter	latter	JJ
37894	772	17	being	be	VBG
37894	772	18	better	well	RBR
37894	772	19	developed	develop	VBN
37894	772	20	but	but	CC
37894	772	21	the	the	DT
37894	772	22	former	former	JJ
37894	772	23	being	be	VBG
37894	772	24	more	more	RBR
37894	772	25	prolonged	prolonged	JJ
37894	772	26	.	.	.
37894	773	1	Toward	toward	IN
37894	773	2	the	the	DT
37894	773	3	beginning	beginning	NN
37894	773	4	of	of	IN
37894	773	5	migration	migration	NN
37894	773	6	,	,	,
37894	773	7	these	these	DT
37894	773	8	two	two	CD
37894	773	9	periods	period	NNS
37894	773	10	of	of	IN
37894	773	11	activity	activity	NN
37894	773	12	decline	decline	NN
37894	773	13	somewhat	somewhat	RB
37894	773	14	.	.	.
37894	774	1	The	the	DT
37894	774	2	second	second	JJ
37894	774	3	,	,	,
37894	774	4	or	or	CC
37894	774	5	spring	spring	VB
37894	774	6	migratory	migratory	JJ
37894	774	7	phase	phase	NN
37894	774	8	,	,	,
37894	774	9	which	which	WDT
37894	774	10	is	be	VBZ
37894	774	11	of	of	IN
37894	774	12	special	special	JJ
37894	774	13	interest	interest	NN
37894	774	14	in	in	IN
37894	774	15	connection	connection	NN
37894	774	16	with	with	IN
37894	774	17	the	the	DT
37894	774	18	present	present	JJ
37894	774	19	problem	problem	NN
37894	774	20	,	,	,
37894	774	21	is	be	VBZ
37894	774	22	characterized	characterize	VBN
37894	774	23	by	by	IN
37894	774	24	what	what	WP
37894	774	25	Palmgren	Palmgren	NNP
37894	774	26	describes	describe	VBZ
37894	774	27	as	as	IN
37894	774	28	nightly	nightly	JJ
37894	774	29	migratory	migratory	JJ
37894	774	30	restlessness	restlessness	NN
37894	774	31	(	(	-LRB-
37894	774	32	_	_	NNP
37894	774	33	Zugunruhe	Zugunruhe	NNP
37894	774	34	_	_	NNP
37894	774	35	)	)	-RRB-
37894	774	36	.	.	.
37894	775	1	The	the	DT
37894	775	2	morning	morning	NN
37894	775	3	maximum	maximum	NN
37894	775	4	,	,	,
37894	775	5	when	when	WRB
37894	775	6	present	present	JJ
37894	775	7	,	,	,
37894	775	8	is	be	VBZ
37894	775	9	weaker	weak	JJR
37894	775	10	and	and	CC
37894	775	11	the	the	DT
37894	775	12	evening	evening	NN
37894	775	13	maximum	maximum	NN
37894	775	14	often	often	RB
37894	775	15	disappears	disappear	VBZ
37894	775	16	altogether	altogether	RB
37894	775	17	.	.	.
37894	776	1	Although	although	IN
37894	776	2	variations	variation	NNS
37894	776	3	are	be	VBP
37894	776	4	described	describe	VBN
37894	776	5	,	,	,
37894	776	6	the	the	DT
37894	776	7	migratory	migratory	JJ
37894	776	8	restlessness	restlessness	NN
37894	776	9	begins	begin	VBZ
37894	776	10	ordinarily	ordinarily	RB
37894	776	11	after	after	IN
37894	776	12	a	a	DT
37894	776	13	period	period	NN
37894	776	14	of	of	IN
37894	776	15	sleep	sleep	NN
37894	776	16	(	(	-LRB-
37894	776	17	"	"	``
37894	776	18	sleeping	sleep	VBG
37894	776	19	pause	pause	NN
37894	776	20	"	"	''
37894	776	21	)	)	-RRB-
37894	776	22	in	in	IN
37894	776	23	the	the	DT
37894	776	24	evening	evening	NN
37894	776	25	and	and	CC
37894	776	26	reaches	reach	VBZ
37894	776	27	a	a	DT
37894	776	28	maximum	maximum	NN
37894	776	29	and	and	CC
37894	776	30	declines	decline	NNS
37894	776	31	before	before	IN
37894	776	32	midnight	midnight	NN
37894	776	33	.	.	.
37894	777	1	This	this	DT
37894	777	2	pattern	pattern	NN
37894	777	3	agrees	agree	VBZ
37894	777	4	closely	closely	RB
37894	777	5	with	with	IN
37894	777	6	the	the	DT
37894	777	7	rhythm	rhythm	NN
37894	777	8	of	of	IN
37894	777	9	activity	activity	NN
37894	777	10	indicated	indicate	VBN
37894	777	11	by	by	IN
37894	777	12	the	the	DT
37894	777	13	time	time	NN
37894	777	14	curves	curve	NNS
37894	777	15	emerging	emerge	VBG
37894	777	16	from	from	IN
37894	777	17	the	the	DT
37894	777	18	present	present	JJ
37894	777	19	research	research	NN
37894	777	20	.	.	.
37894	778	1	Combining	combine	VBG
37894	778	2	the	the	DT
37894	778	3	two	two	CD
37894	778	4	studies	study	NNS
37894	778	5	,	,	,
37894	778	6	we	-PRON-	PRP
37894	778	7	may	may	MD
37894	778	8	postulate	postulate	VB
37894	778	9	that	that	IN
37894	778	10	most	most	JJS
37894	778	11	migrants	migrant	NNS
37894	778	12	go	go	VBP
37894	778	13	to	to	TO
37894	778	14	sleep	sleep	VB
37894	778	15	for	for	IN
37894	778	16	a	a	DT
37894	778	17	period	period	NN
37894	778	18	following	follow	VBG
37894	778	19	twilight	twilight	NN
37894	778	20	,	,	,
37894	778	21	thereby	thereby	RB
37894	778	22	accounting	account	VBG
37894	778	23	for	for	IN
37894	778	24	the	the	DT
37894	778	25	low	low	JJ
37894	778	26	densities	density	NNS
37894	778	27	in	in	IN
37894	778	28	the	the	DT
37894	778	29	early	early	JJ
37894	778	30	part	part	NN
37894	778	31	of	of	IN
37894	778	32	the	the	DT
37894	778	33	night	night	NN
37894	778	34	.	.	.
37894	779	1	On	on	IN
37894	779	2	awakening	awaken	VBG
37894	779	3	later	later	RB
37894	779	4	,	,	,
37894	779	5	they	-PRON-	PRP
37894	779	6	begin	begin	VBP
37894	779	7	to	to	TO
37894	779	8	exhibit	exhibit	VB
37894	779	9	migratory	migratory	JJ
37894	779	10	restlessness	restlessness	NN
37894	779	11	.	.	.
37894	780	1	The	the	DT
37894	780	2	first	first	JJ
37894	780	3	hour	hour	NN
37894	780	4	finds	find	VBZ
37894	780	5	a	a	DT
37894	780	6	certain	certain	JJ
37894	780	7	number	number	NN
37894	780	8	of	of	IN
37894	780	9	birds	bird	NNS
37894	780	10	sufficiently	sufficiently	RB
37894	780	11	stimulated	stimulate	VBD
37894	780	12	so	so	IN
37894	780	13	that	that	IN
37894	780	14	they	-PRON-	PRP
37894	780	15	rise	rise	VBP
37894	780	16	forthwith	forthwith	NN
37894	780	17	into	into	IN
37894	780	18	the	the	DT
37894	780	19	air	air	NN
37894	780	20	.	.	.
37894	781	1	In	in	IN
37894	781	2	the	the	DT
37894	781	3	next	next	JJ
37894	781	4	hour	hour	NN
37894	781	5	still	still	RB
37894	781	6	others	other	NNS
37894	781	7	respond	respond	VBP
37894	781	8	to	to	IN
37894	781	9	this	this	DT
37894	781	10	urge	urge	NN
37894	781	11	and	and	CC
37894	781	12	they	-PRON-	PRP
37894	781	13	too	too	RB
37894	781	14	mount	mount	VBP
37894	781	15	into	into	IN
37894	781	16	the	the	DT
37894	781	17	air	air	NN
37894	781	18	.	.	.
37894	782	1	This	this	DT
37894	782	2	continues	continue	VBZ
37894	782	3	until	until	IN
37894	782	4	the	the	DT
37894	782	5	"	"	``
37894	782	6	restlessness	restlessness	JJ
37894	782	7	"	"	''
37894	782	8	begins	begin	VBZ
37894	782	9	to	to	TO
37894	782	10	abate	abate	VB
37894	782	11	,	,	,
37894	782	12	after	after	IN
37894	782	13	which	which	WDT
37894	782	14	fewer	few	JJR
37894	782	15	and	and	CC
37894	782	16	fewer	few	JJR
37894	782	17	birds	bird	NNS
37894	782	18	take	take	VBP
37894	782	19	wing	wing	NN
37894	782	20	.	.	.
37894	783	1	By	by	IN
37894	783	2	this	this	DT
37894	783	3	time	time	NN
37894	783	4	,	,	,
37894	783	5	the	the	DT
37894	783	6	birds	bird	NNS
37894	783	7	that	that	WDT
37894	783	8	began	begin	VBD
37894	783	9	to	to	TO
37894	783	10	fly	fly	VB
37894	783	11	early	early	RB
37894	783	12	are	be	VBP
37894	783	13	commencing	commence	VBG
37894	783	14	to	to	TO
37894	783	15	descend	descend	VB
37894	783	16	,	,	,
37894	783	17	and	and	CC
37894	783	18	since	since	IN
37894	783	19	their	-PRON-	PRP$
37894	783	20	place	place	NN
37894	783	21	is	be	VBZ
37894	783	22	not	not	RB
37894	783	23	being	be	VBG
37894	783	24	filled	fill	VBN
37894	783	25	by	by	IN
37894	783	26	others	other	NNS
37894	783	27	leaving	leave	VBG
37894	783	28	the	the	DT
37894	783	29	ground	ground	NN
37894	783	30	,	,	,
37894	783	31	the	the	DT
37894	783	32	density	density	NN
37894	783	33	curve	curve	NN
37894	783	34	starts	start	VBZ
37894	783	35	its	-PRON-	PRP$
37894	783	36	decline	decline	NN
37894	783	37	.	.	.
37894	784	1	Farner	Farner	NNP
37894	784	2	(	(	-LRB-
37894	784	3	1947	1947	CD
37894	784	4	)	)	-RRB-
37894	784	5	has	have	VBZ
37894	784	6	called	call	VBN
37894	784	7	attention	attention	NN
37894	784	8	to	to	IN
37894	784	9	the	the	DT
37894	784	10	basic	basic	JJ
37894	784	11	importance	importance	NN
37894	784	12	of	of	IN
37894	784	13	the	the	DT
37894	784	14	work	work	NN
37894	784	15	by	by	IN
37894	784	16	Palmgren	Palmgren	NNP
37894	784	17	and	and	CC
37894	784	18	the	the	DT
37894	784	19	many	many	JJ
37894	784	20	experimental	experimental	JJ
37894	784	21	problems	problem	NNS
37894	784	22	it	-PRON-	PRP
37894	784	23	suggests	suggest	VBZ
37894	784	24	.	.	.
37894	785	1	Of	of	IN
37894	785	2	particular	particular	JJ
37894	785	3	interest	interest	NN
37894	785	4	would	would	MD
37894	785	5	be	be	VB
37894	785	6	studies	study	NNS
37894	785	7	comparing	compare	VBG
37894	785	8	the	the	DT
37894	785	9	activity	activity	NN
37894	785	10	of	of	IN
37894	785	11	caged	cage	VBN
37894	785	12	American	american	JJ
37894	785	13	migrant	migrant	JJ
37894	785	14	species	specie	NNS
37894	785	15	and	and	CC
37894	785	16	the	the	DT
37894	785	17	nightly	nightly	JJ
37894	785	18	variations	variation	NNS
37894	785	19	in	in	IN
37894	785	20	the	the	DT
37894	785	21	flight	flight	NN
37894	785	22	rates	rate	NNS
37894	785	23	.	.	.
37894	786	1	_	_	NNP
37894	786	2	The	the	DT
37894	786	3	Baton	Baton	NNP
37894	786	4	Rouge	Rouge	NNP
37894	786	5	Drop	Drop	NNP
37894	786	6	-	-	HYPH
37894	786	7	off	off	RP
37894	786	8	_	_	NNP
37894	786	9	As	as	IN
37894	786	10	already	already	RB
37894	786	11	stated	state	VBN
37894	786	12	,	,	,
37894	786	13	the	the	DT
37894	786	14	present	present	JJ
37894	786	15	study	study	NN
37894	786	16	was	be	VBD
37894	786	17	initiated	initiate	VBN
37894	786	18	at	at	IN
37894	786	19	Baton	Baton	NNP
37894	786	20	Rouge	Rouge	NNP
37894	786	21	,	,	,
37894	786	22	Louisiana	Louisiana	NNP
37894	786	23	,	,	,
37894	786	24	in	in	IN
37894	786	25	1945	1945	CD
37894	786	26	,	,	,
37894	786	27	and	and	CC
37894	786	28	from	from	IN
37894	786	29	the	the	DT
37894	786	30	outset	outset	NN
37894	786	31	a	a	DT
37894	786	32	very	very	RB
37894	786	33	peculiar	peculiar	JJ
37894	786	34	density	density	NN
37894	786	35	time	time	NN
37894	786	36	pattern	pattern	NN
37894	786	37	was	be	VBD
37894	786	38	manifest	manifest	JJ
37894	786	39	.	.	.
37894	787	1	I	-PRON-	PRP
37894	787	2	soon	soon	RB
37894	787	3	found	find	VBD
37894	787	4	that	that	IN
37894	787	5	birds	bird	NNS
37894	787	6	virtually	virtually	RB
37894	787	7	disappeared	disappear	VBD
37894	787	8	from	from	IN
37894	787	9	the	the	DT
37894	787	10	sky	sky	NN
37894	787	11	after	after	IN
37894	787	12	midnight	midnight	NN
37894	787	13	.	.	.
37894	788	1	Within	within	IN
37894	788	2	an	an	DT
37894	788	3	hour	hour	NN
37894	788	4	after	after	IN
37894	788	5	the	the	DT
37894	788	6	termination	termination	NN
37894	788	7	of	of	IN
37894	788	8	twilight	twilight	NN
37894	788	9	,	,	,
37894	788	10	the	the	DT
37894	788	11	density	density	NN
37894	788	12	would	would	MD
37894	788	13	start	start	VB
37894	788	14	to	to	TO
37894	788	15	ascend	ascend	VB
37894	788	16	toward	toward	IN
37894	788	17	a	a	DT
37894	788	18	peak	peak	NN
37894	788	19	which	which	WDT
37894	788	20	was	be	VBD
37894	788	21	usually	usually	RB
37894	788	22	reached	reach	VBN
37894	788	23	before	before	IN
37894	788	24	ten	ten	CD
37894	788	25	o'clock	o'clock	NN
37894	788	26	,	,	,
37894	788	27	and	and	CC
37894	788	28	then	then	RB
37894	788	29	would	would	MD
37894	788	30	begin	begin	VB
37894	788	31	,	,	,
37894	788	32	surprisingly	surprisingly	RB
37894	788	33	enough	enough	RB
37894	788	34	,	,	,
37894	788	35	a	a	DT
37894	788	36	rapid	rapid	JJ
37894	788	37	decline	decline	NN
37894	788	38	,	,	,
37894	788	39	reaching	reach	VBG
37894	788	40	a	a	DT
37894	788	41	point	point	NN
37894	788	42	where	where	WRB
37894	788	43	the	the	DT
37894	788	44	migratory	migratory	NN
37894	788	45	flow	flow	NN
37894	788	46	was	be	VBD
37894	788	47	negligible	negligible	JJ
37894	788	48	.	.	.
37894	789	1	In	in	IN
37894	789	2	Figure	figure	NN
37894	789	3	30	30	CD
37894	789	4	the	the	DT
37894	789	5	density	density	NN
37894	789	6	curves	curve	NNS
37894	789	7	are	be	VBP
37894	789	8	shown	show	VBN
37894	789	9	for	for	IN
37894	789	10	five	five	CD
37894	789	11	nights	night	NNS
37894	789	12	that	that	WDT
37894	789	13	demonstrate	demonstrate	VBP
37894	789	14	this	this	DT
37894	789	15	characteristically	characteristically	RB
37894	789	16	early	early	JJ
37894	789	17	decline	decline	NN
37894	789	18	in	in	IN
37894	789	19	the	the	DT
37894	789	20	volume	volume	NN
37894	789	21	of	of	IN
37894	789	22	migration	migration	NN
37894	789	23	at	at	IN
37894	789	24	this	this	DT
37894	789	25	station	station	NN
37894	789	26	.	.	.
37894	790	1	Since	since	IN
37894	790	2	,	,	,
37894	790	3	in	in	IN
37894	790	4	the	the	DT
37894	790	5	early	early	JJ
37894	790	6	stages	stage	NNS
37894	790	7	of	of	IN
37894	790	8	the	the	DT
37894	790	9	work	work	NN
37894	790	10	,	,	,
37894	790	11	coördinates	coördinate	NNS
37894	790	12	of	of	IN
37894	790	13	apparent	apparent	JJ
37894	790	14	pathways	pathway	NNS
37894	790	15	of	of	IN
37894	790	16	all	all	PDT
37894	790	17	the	the	DT
37894	790	18	birds	bird	NNS
37894	790	19	seen	see	VBN
37894	790	20	were	be	VBD
37894	790	21	not	not	RB
37894	790	22	recorded	record	VBN
37894	790	23	,	,	,
37894	790	24	I	-PRON-	PRP
37894	790	25	am	be	VBP
37894	790	26	unable	unable	JJ
37894	790	27	now	now	RB
37894	790	28	to	to	TO
37894	790	29	ascertain	ascertain	VB
37894	790	30	the	the	DT
37894	790	31	direction	direction	NN
37894	790	32	of	of	IN
37894	790	33	flight	flight	NN
37894	790	34	and	and	CC
37894	790	35	thereby	thereby	RB
37894	790	36	arrive	arrive	VBP
37894	790	37	at	at	IN
37894	790	38	a	a	DT
37894	790	39	density	density	NN
37894	790	40	figure	figure	NN
37894	790	41	based	base	VBN
37894	790	42	on	on	IN
37894	790	43	the	the	DT
37894	790	44	dimension	dimension	NN
37894	790	45	of	of	IN
37894	790	46	the	the	DT
37894	790	47	cone	cone	NN
37894	790	48	and	and	CC
37894	790	49	the	the	DT
37894	790	50	length	length	NN
37894	790	51	of	of	IN
37894	790	52	the	the	DT
37894	790	53	front	front	NN
37894	790	54	presented	present	VBN
37894	790	55	to	to	IN
37894	790	56	birds	bird	NNS
37894	790	57	flying	fly	VBG
37894	790	58	in	in	IN
37894	790	59	certain	certain	JJ
37894	790	60	directions	direction	NNS
37894	790	61	.	.	.
37894	791	1	It	-PRON-	PRP
37894	791	2	is	be	VBZ
37894	791	3	feasible	feasible	JJ
37894	791	4	,	,	,
37894	791	5	nevertheless	nevertheless	RB
37894	791	6	,	,	,
37894	791	7	to	to	TO
37894	791	8	compute	compute	VB
37894	791	9	what	what	WP
37894	791	10	I	-PRON-	PRP
37894	791	11	have	have	VBP
37894	791	12	termed	term	VBN
37894	791	13	a	a	DT
37894	791	14	"	"	``
37894	791	15	plus	plus	CC
37894	791	16	or	or	CC
37894	791	17	minus	minus	CC
37894	791	18	"	"	``
37894	791	19	flight	flight	NN
37894	791	20	density	density	NN
37894	791	21	figure	figure	NN
37894	791	22	stating	state	VBG
37894	791	23	the	the	DT
37894	791	24	rate	rate	NN
37894	791	25	of	of	IN
37894	791	26	passage	passage	NN
37894	791	27	of	of	IN
37894	791	28	birds	bird	NNS
37894	791	29	in	in	IN
37894	791	30	terms	term	NNS
37894	791	31	of	of	IN
37894	791	32	the	the	DT
37894	791	33	maximum	maximum	JJ
37894	791	34	and	and	CC
37894	791	35	minimum	minimum	JJ
37894	791	36	corrections	correction	NNS
37894	791	37	which	which	WDT
37894	791	38	all	all	DT
37894	791	39	possible	possible	JJ
37894	791	40	directions	direction	NNS
37894	791	41	of	of	IN
37894	791	42	flight	flight	NN
37894	791	43	would	would	MD
37894	791	44	impose	impose	VB
37894	791	45	.	.	.
37894	792	1	In	in	IN
37894	792	2	other	other	JJ
37894	792	3	words	word	NNS
37894	792	4	,	,	,
37894	792	5	density	density	NN
37894	792	6	is	be	VBZ
37894	792	7	here	here	RB
37894	792	8	computed	compute	VBN
37894	792	9	,	,	,
37894	792	10	first	first	RB
37894	792	11	,	,	,
37894	792	12	as	as	IN
37894	792	13	if	if	IN
37894	792	14	all	all	PDT
37894	792	15	the	the	DT
37894	792	16	birds	bird	NNS
37894	792	17	were	be	VBD
37894	792	18	flying	fly	VBG
37894	792	19	perpendicular	perpendicular	JJ
37894	792	20	to	to	IN
37894	792	21	the	the	DT
37894	792	22	long	long	JJ
37894	792	23	axis	axis	NN
37894	792	24	of	of	IN
37894	792	25	the	the	DT
37894	792	26	ellipse	ellipse	NN
37894	792	27	,	,	,
37894	792	28	and	and	CC
37894	792	29	,	,	,
37894	792	30	secondly	secondly	RB
37894	792	31	,	,	,
37894	792	32	as	as	IN
37894	792	33	if	if	IN
37894	792	34	all	all	PDT
37894	792	35	the	the	DT
37894	792	36	birds	bird	NNS
37894	792	37	were	be	VBD
37894	792	38	flying	fly	VBG
37894	792	39	across	across	IN
37894	792	40	the	the	DT
37894	792	41	short	short	JJ
37894	792	42	axis	axi	NNS
37894	792	43	of	of	IN
37894	792	44	the	the	DT
37894	792	45	ellipse	ellipse	NN
37894	792	46	.	.	.
37894	793	1	Since	since	IN
37894	793	2	the	the	DT
37894	793	3	actual	actual	JJ
37894	793	4	directions	direction	NNS
37894	793	5	of	of	IN
37894	793	6	flight	flight	NN
37894	793	7	were	be	VBD
37894	793	8	somewhere	somewhere	RB
37894	793	9	between	between	IN
37894	793	10	these	these	DT
37894	793	11	two	two	CD
37894	793	12	extremes	extreme	NNS
37894	793	13	,	,	,
37894	793	14	the	the	DT
37894	793	15	"	"	``
37894	793	16	plus	plus	CC
37894	793	17	or	or	CC
37894	793	18	minus	minus	CC
37894	793	19	"	"	``
37894	793	20	density	density	NN
37894	793	21	figure	figure	NN
37894	793	22	is	be	VBZ
37894	793	23	highly	highly	RB
37894	793	24	useful	useful	JJ
37894	793	25	.	.	.
37894	794	1	[	[	-LRB-
37894	794	2	Illustration	illustration	NN
37894	794	3	:	:	:
37894	794	4	FIG	FIG	NNP
37894	794	5	.	.	.
37894	795	1	30	30	CD
37894	795	2	.	.	.
37894	796	1	Density	density	NN
37894	796	2	-	-	HYPH
37894	796	3	time	time	NN
37894	796	4	curves	curve	NNS
37894	796	5	on	on	IN
37894	796	6	various	various	JJ
37894	796	7	nights	night	NNS
37894	796	8	at	at	IN
37894	796	9	Baton	Baton	NNP
37894	796	10	Rouge	Rouge	NNP
37894	796	11	.	.	.
37894	797	1	(	(	-LRB-
37894	797	2	A	a	DT
37894	797	3	)	)	-RRB-
37894	797	4	April	April	NNP
37894	797	5	25	25	CD
37894	797	6	,	,	,
37894	797	7	1945	1945	CD
37894	797	8	;	;	:
37894	797	9	(	(	-LRB-
37894	797	10	B	b	NN
37894	797	11	)	)	-RRB-
37894	797	12	April	April	NNP
37894	797	13	15	15	CD
37894	797	14	,	,	,
37894	797	15	1946	1946	CD
37894	797	16	;	;	:
37894	797	17	(	(	-LRB-
37894	797	18	C	C	NNP
37894	797	19	)	)	-RRB-
37894	797	20	May	May	NNP
37894	797	21	10	10	CD
37894	797	22	,	,	,
37894	797	23	1946	1946	CD
37894	797	24	;	;	:
37894	797	25	(	(	-LRB-
37894	797	26	D	d	NN
37894	797	27	)	)	-RRB-
37894	797	28	May	May	NNP
37894	797	29	15	15	CD
37894	797	30	,	,	,
37894	797	31	1946	1946	CD
37894	797	32	;	;	:
37894	797	33	(	(	-LRB-
37894	797	34	E	e	NN
37894	797	35	)	)	-RRB-
37894	797	36	April	April	NNP
37894	797	37	22	22	CD
37894	797	38	-	-	SYM
37894	797	39	23	23	CD
37894	797	40	,	,	,
37894	797	41	1948	1948	CD
37894	797	42	.	.	.
37894	798	1	These	these	DT
37894	798	2	curves	curve	NNS
37894	798	3	are	be	VBP
37894	798	4	plotted	plot	VBN
37894	798	5	on	on	IN
37894	798	6	a	a	DT
37894	798	7	"	"	``
37894	798	8	plus	plus	CC
37894	798	9	or	or	CC
37894	798	10	minus	minus	CC
37894	798	11	"	"	``
37894	798	12	basis	basis	NN
37894	798	13	as	as	IN
37894	798	14	described	describe	VBN
37894	798	15	in	in	IN
37894	798	16	the	the	DT
37894	798	17	text	text	NN
37894	798	18	,	,	,
37894	798	19	with	with	IN
37894	798	20	the	the	DT
37894	798	21	bottom	bottom	NN
37894	798	22	of	of	IN
37894	798	23	the	the	DT
37894	798	24	curve	curve	NN
37894	798	25	representing	represent	VBG
37894	798	26	the	the	DT
37894	798	27	minimum	minimum	JJ
37894	798	28	density	density	NN
37894	798	29	and	and	CC
37894	798	30	the	the	DT
37894	798	31	top	top	NN
37894	798	32	of	of	IN
37894	798	33	the	the	DT
37894	798	34	curve	curve	NN
37894	798	35	the	the	DT
37894	798	36	maximum	maximum	NN
37894	798	37	.	.	.
37894	798	38	]	]	-RRB-
37894	799	1	The	the	DT
37894	799	2	well	well	RB
37894	799	3	-	-	HYPH
37894	799	4	marked	mark	VBN
37894	799	5	decline	decline	NN
37894	799	6	before	before	IN
37894	799	7	midnight	midnight	NN
37894	799	8	in	in	IN
37894	799	9	the	the	DT
37894	799	10	migration	migration	NN
37894	799	11	rates	rate	NNS
37894	799	12	at	at	IN
37894	799	13	Baton	Baton	NNP
37894	799	14	Rouge	Rouge	NNP
37894	799	15	may	may	MD
37894	799	16	be	be	VB
37894	799	17	regarded	regard	VBN
37894	799	18	as	as	IN
37894	799	19	one	one	CD
37894	799	20	of	of	IN
37894	799	21	the	the	DT
37894	799	22	outstanding	outstanding	JJ
37894	799	23	results	result	NNS
37894	799	24	emerging	emerge	VBG
37894	799	25	from	from	IN
37894	799	26	this	this	DT
37894	799	27	study	study	NN
37894	799	28	.	.	.
37894	800	1	Many	many	JJ
37894	800	2	years	year	NNS
37894	800	3	of	of	IN
37894	800	4	ornithological	ornithological	JJ
37894	800	5	investigation	investigation	NN
37894	800	6	in	in	IN
37894	800	7	this	this	DT
37894	800	8	general	general	JJ
37894	800	9	region	region	NN
37894	800	10	failed	fail	VBD
37894	800	11	to	to	TO
37894	800	12	suggest	suggest	VB
37894	800	13	even	even	RB
37894	800	14	remotely	remotely	RB
37894	800	15	that	that	IN
37894	800	16	a	a	DT
37894	800	17	situation	situation	NN
37894	800	18	of	of	IN
37894	800	19	this	this	DT
37894	800	20	sort	sort	NN
37894	800	21	obtained	obtain	VBD
37894	800	22	.	.	.
37894	801	1	Now	now	RB
37894	801	2	,	,	,
37894	801	3	in	in	IN
37894	801	4	the	the	DT
37894	801	5	light	light	NN
37894	801	6	of	of	IN
37894	801	7	this	this	DT
37894	801	8	new	new	JJ
37894	801	9	fact	fact	NN
37894	801	10	,	,	,
37894	801	11	it	-PRON-	PRP
37894	801	12	is	be	VBZ
37894	801	13	possible	possible	JJ
37894	801	14	for	for	IN
37894	801	15	the	the	DT
37894	801	16	first	first	JJ
37894	801	17	time	time	NN
37894	801	18	to	to	TO
37894	801	19	rationalize	rationalize	VB
37894	801	20	certain	certain	JJ
37894	801	21	previously	previously	RB
37894	801	22	incongruous	incongruous	JJ
37894	801	23	data	datum	NNS
37894	801	24	.	.	.
37894	802	1	Ornithologists	ornithologist	NNS
37894	802	2	in	in	IN
37894	802	3	this	this	DT
37894	802	4	area	area	NN
37894	802	5	long	long	RB
37894	802	6	have	have	VBP
37894	802	7	noted	note	VBN
37894	802	8	that	that	IN
37894	802	9	local	local	JJ
37894	802	10	storms	storm	NNS
37894	802	11	and	and	CC
37894	802	12	cold	cold	JJ
37894	802	13	-	-	HYPH
37894	802	14	front	front	JJ
37894	802	15	phenomena	phenomenon	NNS
37894	802	16	at	at	IN
37894	802	17	night	night	NN
37894	802	18	in	in	IN
37894	802	19	spring	spring	NN
37894	802	20	sometimes	sometimes	RB
37894	802	21	precipitate	precipitate	VBP
37894	802	22	great	great	JJ
37894	802	23	numbers	number	NNS
37894	802	24	of	of	IN
37894	802	25	birds	bird	NNS
37894	802	26	,	,	,
37894	802	27	whereupon	whereupon	VB
37894	802	28	the	the	DT
37894	802	29	woods	wood	NNS
37894	802	30	are	be	VBP
37894	802	31	filled	fill	VBN
37894	802	32	the	the	DT
37894	802	33	following	follow	VBG
37894	802	34	day	day	NN
37894	802	35	with	with	IN
37894	802	36	migrants	migrant	NNS
37894	802	37	.	.	.
37894	803	1	On	on	IN
37894	803	2	other	other	JJ
37894	803	3	occasions	occasion	NNS
37894	803	4	,	,	,
37894	803	5	sudden	sudden	JJ
37894	803	6	storms	storm	NNS
37894	803	7	at	at	IN
37894	803	8	night	night	NN
37894	803	9	have	have	VBP
37894	803	10	produced	produce	VBN
37894	803	11	no	no	DT
37894	803	12	visible	visible	JJ
37894	803	13	results	result	NNS
37894	803	14	in	in	IN
37894	803	15	terms	term	NNS
37894	803	16	of	of	IN
37894	803	17	bird	bird	NN
37894	803	18	densities	densitie	VBZ
37894	803	19	the	the	DT
37894	803	20	following	follow	VBG
37894	803	21	day	day	NN
37894	803	22	.	.	.
37894	804	1	For	for	IN
37894	804	2	every	every	DT
37894	804	3	situation	situation	NN
37894	804	4	such	such	JJ
37894	804	5	as	as	IN
37894	804	6	described	describe	VBN
37894	804	7	by	by	IN
37894	804	8	Gates	Gates	NNP
37894	804	9	(	(	-LRB-
37894	804	10	1933	1933	CD
37894	804	11	)	)	-RRB-
37894	804	12	in	in	IN
37894	804	13	which	which	WDT
37894	804	14	hordes	horde	NNS
37894	804	15	of	of	IN
37894	804	16	birds	bird	NNS
37894	804	17	were	be	VBD
37894	804	18	forced	force	VBN
37894	804	19	down	down	RP
37894	804	20	at	at	IN
37894	804	21	night	night	NN
37894	804	22	by	by	IN
37894	804	23	inclement	inclement	JJ
37894	804	24	weather	weather	NN
37894	804	25	,	,	,
37894	804	26	there	there	EX
37894	804	27	are	be	VBP
37894	804	28	just	just	RB
37894	804	29	as	as	RB
37894	804	30	many	many	JJ
37894	804	31	instances	instance	NNS
37894	804	32	,	,	,
37894	804	33	even	even	RB
37894	804	34	at	at	IN
37894	804	35	the	the	DT
37894	804	36	height	height	NN
37894	804	37	of	of	IN
37894	804	38	spring	spring	NN
37894	804	39	migration	migration	NN
37894	804	40	,	,	,
37894	804	41	when	when	WRB
37894	804	42	similar	similar	JJ
37894	804	43	weather	weather	NN
37894	804	44	conditions	condition	NNS
37894	804	45	yielded	yield	VBD
37894	804	46	no	no	DT
37894	804	47	birds	bird	NNS
37894	804	48	on	on	IN
37894	804	49	the	the	DT
37894	804	50	ground	ground	NN
37894	804	51	.	.	.
37894	805	1	However	however	RB
37894	805	2	,	,	,
37894	805	3	the	the	DT
37894	805	4	explanation	explanation	NN
37894	805	5	of	of	IN
37894	805	6	these	these	DT
37894	805	7	facts	fact	NNS
37894	805	8	is	be	VBZ
37894	805	9	simple	simple	JJ
37894	805	10	;	;	:
37894	805	11	for	for	IN
37894	805	12	we	-PRON-	PRP
37894	805	13	discover	discover	VBP
37894	805	14	that	that	IN
37894	805	15	storms	storm	NNS
37894	805	16	that	that	WDT
37894	805	17	produced	produce	VBD
37894	805	18	birds	bird	NNS
37894	805	19	occurred	occur	VBD
37894	805	20	before	before	IN
37894	805	21	midnight	midnight	NN
37894	805	22	and	and	CC
37894	805	23	those	those	DT
37894	805	24	that	that	WDT
37894	805	25	failed	fail	VBD
37894	805	26	to	to	TO
37894	805	27	produce	produce	VB
37894	805	28	birds	bird	NNS
37894	805	29	occurred	occur	VBD
37894	805	30	after	after	IN
37894	805	31	that	that	DT
37894	805	32	time	time	NN
37894	805	33	(	(	-LRB-
37894	805	34	the	the	DT
37894	805	35	storm	storm	NN
37894	805	36	described	describe	VBN
37894	805	37	by	by	IN
37894	805	38	Gates	Gates	NNP
37894	805	39	occurred	occur	VBD
37894	805	40	between	between	IN
37894	805	41	8:30	8:30	CD
37894	805	42	and	and	CC
37894	805	43	9:00	9:00	CD
37894	805	44	P.	P.	NNP
37894	805	45	M.	M.	NNP
37894	805	46	)	)	-RRB-
37894	805	47	.	.	.
37894	806	1	The	the	DT
37894	806	2	early	early	JJ
37894	806	3	hour	hour	NN
37894	806	4	decline	decline	NN
37894	806	5	in	in	IN
37894	806	6	density	density	NN
37894	806	7	at	at	IN
37894	806	8	Baton	Baton	NNP
37894	806	9	Rouge	Rouge	NNP
37894	806	10	at	at	IN
37894	806	11	first	first	RB
37894	806	12	did	do	VBD
37894	806	13	not	not	RB
37894	806	14	seem	seem	VB
37894	806	15	surprising	surprising	JJ
37894	806	16	in	in	IN
37894	806	17	view	view	NN
37894	806	18	of	of	IN
37894	806	19	the	the	DT
37894	806	20	small	small	JJ
37894	806	21	amount	amount	NN
37894	806	22	of	of	IN
37894	806	23	land	land	NN
37894	806	24	area	area	NN
37894	806	25	between	between	IN
37894	806	26	this	this	DT
37894	806	27	station	station	NN
37894	806	28	and	and	CC
37894	806	29	the	the	DT
37894	806	30	Gulf	Gulf	NNP
37894	806	31	of	of	IN
37894	806	32	Mexico	Mexico	NNP
37894	806	33	.	.	.
37894	807	1	Since	since	IN
37894	807	2	the	the	DT
37894	807	3	majority	majority	NN
37894	807	4	of	of	IN
37894	807	5	the	the	DT
37894	807	6	birds	bird	NNS
37894	807	7	destined	destine	VBN
37894	807	8	to	to	TO
37894	807	9	pass	pass	VB
37894	807	10	Baton	Baton	NNP
37894	807	11	Rouge	Rouge	NNP
37894	807	12	on	on	IN
37894	807	13	a	a	DT
37894	807	14	certain	certain	JJ
37894	807	15	night	night	NN
37894	807	16	come	come	VBP
37894	807	17	in	in	IN
37894	807	18	general	general	JJ
37894	807	19	from	from	IN
37894	807	20	the	the	DT
37894	807	21	area	area	NN
37894	807	22	to	to	IN
37894	807	23	the	the	DT
37894	807	24	south	south	NN
37894	807	25	of	of	IN
37894	807	26	that	that	DT
37894	807	27	place	place	NN
37894	807	28	,	,	,
37894	807	29	and	and	CC
37894	807	30	since	since	IN
37894	807	31	the	the	DT
37894	807	32	distances	distance	NNS
37894	807	33	to	to	IN
37894	807	34	various	various	JJ
37894	807	35	points	point	NNS
37894	807	36	on	on	IN
37894	807	37	the	the	DT
37894	807	38	coast	coast	NN
37894	807	39	are	be	VBP
37894	807	40	slight	slight	JJ
37894	807	41	,	,	,
37894	807	42	we	-PRON-	PRP
37894	807	43	inferred	infer	VBD
37894	807	44	that	that	IN
37894	807	45	a	a	DT
37894	807	46	three	three	CD
37894	807	47	-	-	HYPH
37894	807	48	hour	hour	NN
37894	807	49	flight	flight	NN
37894	807	50	from	from	IN
37894	807	51	even	even	RB
37894	807	52	the	the	DT
37894	807	53	more	more	RBR
37894	807	54	remote	remote	JJ
37894	807	55	points	point	NNS
37894	807	56	would	would	MD
37894	807	57	probably	probably	RB
37894	807	58	take	take	VB
37894	807	59	the	the	DT
37894	807	60	bulk	bulk	NN
37894	807	61	of	of	IN
37894	807	62	the	the	DT
37894	807	63	birds	bird	NNS
37894	807	64	northward	northward	RB
37894	807	65	past	past	IN
37894	807	66	Baton	Baton	NNP
37894	807	67	Rouge	Rouge	NNP
37894	807	68	.	.	.
37894	808	1	In	in	IN
37894	808	2	short	short	JJ
37894	808	3	,	,	,
37894	808	4	the	the	DT
37894	808	5	coastal	coastal	JJ
37894	808	6	plain	plain	NN
37894	808	7	would	would	MD
37894	808	8	be	be	VB
37894	808	9	emptied	empty	VBN
37894	808	10	well	well	RB
37894	808	11	before	before	IN
37894	808	12	midnight	midnight	NN
37894	808	13	of	of	IN
37894	808	14	its	-PRON-	PRP$
37894	808	15	migrant	migrant	JJ
37894	808	16	bird	bird	NN
37894	808	17	life	life	NN
37894	808	18	,	,	,
37894	808	19	or	or	CC
37894	808	20	at	at	IN
37894	808	21	least	least	JJS
37894	808	22	that	that	DT
37894	808	23	part	part	NN
37894	808	24	of	of	IN
37894	808	25	the	the	DT
37894	808	26	population	population	NN
37894	808	27	destined	destine	VBN
37894	808	28	to	to	TO
37894	808	29	migrate	migrate	VB
37894	808	30	on	on	IN
37894	808	31	any	any	DT
37894	808	32	particular	particular	JJ
37894	808	33	night	night	NN
37894	808	34	in	in	IN
37894	808	35	question	question	NN
37894	808	36	.	.	.
37894	809	1	Although	although	IN
37894	809	2	data	datum	NNS
37894	809	3	in	in	IN
37894	809	4	quantity	quantity	NN
37894	809	5	are	be	VBP
37894	809	6	not	not	RB
37894	809	7	available	available	JJ
37894	809	8	from	from	IN
37894	809	9	stations	station	NNS
37894	809	10	on	on	IN
37894	809	11	the	the	DT
37894	809	12	coastal	coastal	JJ
37894	809	13	plain	plain	NN
37894	809	14	other	other	JJ
37894	809	15	than	than	IN
37894	809	16	Baton	Baton	NNP
37894	809	17	Rouge	Rouge	NNP
37894	809	18	,	,	,
37894	809	19	it	-PRON-	PRP
37894	809	20	may	may	MD
37894	809	21	be	be	VB
37894	809	22	pointed	point	VBN
37894	809	23	out	out	RP
37894	809	24	that	that	IN
37894	809	25	such	such	JJ
37894	809	26	observations	observation	NNS
37894	809	27	as	as	IN
37894	809	28	we	-PRON-	PRP
37894	809	29	do	do	VBP
37894	809	30	have	have	VB
37894	809	31	,	,	,
37894	809	32	from	from	IN
37894	809	33	Lafayette	Lafayette	NNP
37894	809	34	and	and	CC
37894	809	35	New	New	NNP
37894	809	36	Orleans	Orleans	NNP
37894	809	37	,	,	,
37894	809	38	Louisiana	Louisiana	NNP
37894	809	39	,	,	,
37894	809	40	and	and	CC
37894	809	41	from	from	IN
37894	809	42	Thomasville	Thomasville	NNP
37894	809	43	,	,	,
37894	809	44	Georgia	Georgia	NNP
37894	809	45	,	,	,
37894	809	46	are	be	VBP
37894	809	47	in	in	IN
37894	809	48	agreement	agreement	NN
37894	809	49	with	with	IN
37894	809	50	this	this	DT
37894	809	51	hypothesis	hypothesis	NN
37894	809	52	.	.	.
37894	810	1	A	a	DT
37894	810	2	hundred	hundred	CD
37894	810	3	and	and	CC
37894	810	4	seventy	seventy	CD
37894	810	5	miles	mile	NNS
37894	810	6	northward	northward	RB
37894	810	7	in	in	IN
37894	810	8	the	the	DT
37894	810	9	Mississippi	Mississippi	NNP
37894	810	10	Valley	Valley	NNP
37894	810	11	,	,	,
37894	810	12	at	at	IN
37894	810	13	Oak	Oak	NNP
37894	810	14	Grove	Grove	NNP
37894	810	15	,	,	,
37894	810	16	Louisiana	Louisiana	NNP
37894	810	17	,	,	,
37894	810	18	a	a	DT
37894	810	19	somewhat	somewhat	RB
37894	810	20	more	more	RBR
37894	810	21	normal	normal	JJ
37894	810	22	density	density	NN
37894	810	23	pattern	pattern	NN
37894	810	24	is	be	VBZ
37894	810	25	manifested	manifest	VBN
37894	810	26	.	.	.
37894	811	1	There	there	RB
37894	811	2	,	,	,
37894	811	3	in	in	IN
37894	811	4	four	four	CD
37894	811	5	nights	night	NNS
37894	811	6	of	of	IN
37894	811	7	careful	careful	JJ
37894	811	8	observation	observation	NN
37894	811	9	,	,	,
37894	811	10	a	a	DT
37894	811	11	pronounced	pronounce	VBN
37894	811	12	early	early	JJ
37894	811	13	peak	peak	NN
37894	811	14	resulted	result	VBD
37894	811	15	on	on	IN
37894	811	16	the	the	DT
37894	811	17	night	night	NN
37894	811	18	of	of	IN
37894	811	19	May	May	NNP
37894	811	20	21	21	CD
37894	811	21	-	-	SYM
37894	811	22	22	22	CD
37894	811	23	(	(	-LRB-
37894	811	24	Figure	Figure	NNP
37894	811	25	29E	29E	NNP
37894	811	26	)	)	-RRB-
37894	811	27	,	,	,
37894	811	28	but	but	CC
37894	811	29	on	on	IN
37894	811	30	the	the	DT
37894	811	31	other	other	JJ
37894	811	32	three	three	CD
37894	811	33	nights	night	NNS
37894	811	34	significant	significant	JJ
37894	811	35	densities	density	NNS
37894	811	36	held	hold	VBN
37894	811	37	up	up	RP
37894	811	38	until	until	IN
37894	811	39	near	near	IN
37894	811	40	twelve	twelve	CD
37894	811	41	o'clock	o'clock	NN
37894	811	42	,	,	,
37894	811	43	thereby	thereby	RB
37894	811	44	demonstrating	demonstrate	VBG
37894	811	45	the	the	DT
37894	811	46	probable	probable	JJ
37894	811	47	effect	effect	NN
37894	811	48	of	of	IN
37894	811	49	the	the	DT
37894	811	50	increased	increase	VBN
37894	811	51	amount	amount	NN
37894	811	52	of	of	IN
37894	811	53	land	land	NN
37894	811	54	to	to	IN
37894	811	55	the	the	DT
37894	811	56	south	south	NN
37894	811	57	of	of	IN
37894	811	58	the	the	DT
37894	811	59	station	station	NN
37894	811	60	.	.	.
37894	812	1	Subsequent	subsequent	JJ
37894	812	2	studies	study	NNS
37894	812	3	,	,	,
37894	812	4	revealing	reveal	VBG
37894	812	5	the	the	DT
37894	812	6	evident	evident	JJ
37894	812	7	existence	existence	NN
37894	812	8	of	of	IN
37894	812	9	an	an	DT
37894	812	10	underlying	underlying	JJ
37894	812	11	density	density	NN
37894	812	12	time	time	NN
37894	812	13	pattern	pattern	NN
37894	812	14	,	,	,
37894	812	15	cast	cast	VBD
37894	812	16	serious	serious	JJ
37894	812	17	doubt	doubt	NN
37894	812	18	on	on	IN
37894	812	19	the	the	DT
37894	812	20	explanations	explanation	NNS
37894	812	21	just	just	RB
37894	812	22	advanced	advanced	JJ
37894	812	23	of	of	IN
37894	812	24	the	the	DT
37894	812	25	early	early	JJ
37894	812	26	decline	decline	NN
37894	812	27	in	in	IN
37894	812	28	the	the	DT
37894	812	29	volume	volume	NN
37894	812	30	of	of	IN
37894	812	31	migration	migration	NN
37894	812	32	at	at	IN
37894	812	33	Baton	Baton	NNP
37894	812	34	Rouge	Rouge	NNP
37894	812	35	.	.	.
37894	813	1	It	-PRON-	PRP
37894	813	2	has	have	VBZ
37894	813	3	as	as	RB
37894	813	4	yet	yet	RB
37894	813	5	been	be	VBN
37894	813	6	impossible	impossible	JJ
37894	813	7	to	to	TO
37894	813	8	reconcile	reconcile	VB
37894	813	9	the	the	DT
37894	813	10	early	early	JJ
37894	813	11	drop	drop	NN
37894	813	12	-	-	HYPH
37894	813	13	off	off	NN
37894	813	14	at	at	IN
37894	813	15	this	this	DT
37894	813	16	station	station	NN
37894	813	17	with	with	IN
37894	813	18	the	the	DT
37894	813	19	idea	idea	NN
37894	813	20	that	that	IN
37894	813	21	birds	bird	NNS
37894	813	22	are	be	VBP
37894	813	23	still	still	RB
37894	813	24	mounting	mount	VBG
37894	813	25	into	into	IN
37894	813	26	the	the	DT
37894	813	27	air	air	NN
37894	813	28	at	at	IN
37894	813	29	eleven	eleven	CD
37894	813	30	o'clock	o'clock	NN
37894	813	31	,	,	,
37894	813	32	as	as	IN
37894	813	33	is	be	VBZ
37894	813	34	implied	imply	VBN
37894	813	35	by	by	IN
37894	813	36	the	the	DT
37894	813	37	ideal	ideal	JJ
37894	813	38	time	time	NN
37894	813	39	curves	curve	NNS
37894	813	40	.	.	.
37894	814	1	C.	C.	NNP
37894	814	2	MIGRATION	MIGRATION	NNP
37894	814	3	IN	in	IN
37894	814	4	RELATION	relation	NN
37894	814	5	TO	to	IN
37894	814	6	TOPOGRAPHY	TOPOGRAPHY	NNP
37894	814	7	To	to	IN
37894	814	8	this	this	DT
37894	814	9	point	point	NN
37894	814	10	we	-PRON-	PRP
37894	814	11	have	have	VBP
37894	814	12	considered	consider	VBN
37894	814	13	the	the	DT
37894	814	14	horizontal	horizontal	JJ
37894	814	15	distribution	distribution	NN
37894	814	16	of	of	IN
37894	814	17	birds	bird	NNS
37894	814	18	in	in	IN
37894	814	19	the	the	DT
37894	814	20	sky	sky	NN
37894	814	21	only	only	RB
37894	814	22	on	on	IN
37894	814	23	a	a	DT
37894	814	24	very	very	RB
37894	814	25	narrow	narrow	JJ
37894	814	26	scale	scale	NN
37894	814	27	and	and	CC
37894	814	28	mainly	mainly	RB
37894	814	29	in	in	IN
37894	814	30	terms	term	NNS
37894	814	31	of	of	IN
37894	814	32	the	the	DT
37894	814	33	chance	chance	NN
37894	814	34	element	element	NN
37894	814	35	in	in	IN
37894	814	36	observations	observation	NNS
37894	814	37	.	.	.
37894	815	1	Various	various	JJ
37894	815	2	considerations	consideration	NNS
37894	815	3	have	have	VBP
37894	815	4	supported	support	VBN
37894	815	5	the	the	DT
37894	815	6	premise	premise	NN
37894	815	7	that	that	IN
37894	815	8	the	the	DT
37894	815	9	spread	spread	NN
37894	815	10	of	of	IN
37894	815	11	nocturnal	nocturnal	JJ
37894	815	12	migration	migration	NN
37894	815	13	is	be	VBZ
37894	815	14	rather	rather	RB
37894	815	15	even	even	RB
37894	815	16	,	,	,
37894	815	17	at	at	IN
37894	815	18	least	least	JJS
37894	815	19	within	within	IN
37894	815	20	restricted	restrict	VBN
37894	815	21	spacial	spacial	JJ
37894	815	22	limits	limit	NNS
37894	815	23	and	and	CC
37894	815	24	short	short	JJ
37894	815	25	intervals	interval	NNS
37894	815	26	of	of	IN
37894	815	27	time	time	NN
37894	815	28	.	.	.
37894	816	1	This	this	DT
37894	816	2	means	mean	VBZ
37894	816	3	that	that	IN
37894	816	4	in	in	IN
37894	816	5	general	general	JJ
37894	816	6	the	the	DT
37894	816	7	flow	flow	NN
37894	816	8	of	of	IN
37894	816	9	birds	bird	NNS
37894	816	10	from	from	IN
37894	816	11	hour	hour	NN
37894	816	12	to	to	IN
37894	816	13	hour	hour	NN
37894	816	14	at	at	IN
37894	816	15	a	a	DT
37894	816	16	single	single	JJ
37894	816	17	station	station	NN
37894	816	18	exhibits	exhibit	VBZ
37894	816	19	a	a	DT
37894	816	20	smooth	smooth	JJ
37894	816	21	continuity	continuity	NN
37894	816	22	.	.	.
37894	817	1	It	-PRON-	PRP
37894	817	2	does	do	VBZ
37894	817	3	not	not	RB
37894	817	4	mean	mean	VB
37894	817	5	that	that	IN
37894	817	6	it	-PRON-	PRP
37894	817	7	is	be	VBZ
37894	817	8	a	a	DT
37894	817	9	uniform	uniform	JJ
37894	817	10	flow	flow	NN
37894	817	11	in	in	IN
37894	817	12	the	the	DT
37894	817	13	sense	sense	NN
37894	817	14	that	that	IN
37894	817	15	approximately	approximately	RB
37894	817	16	the	the	DT
37894	817	17	same	same	JJ
37894	817	18	numbers	number	NNS
37894	817	19	of	of	IN
37894	817	20	birds	bird	NNS
37894	817	21	are	be	VBP
37894	817	22	passing	pass	VBG
37894	817	23	at	at	IN
37894	817	24	all	all	DT
37894	817	25	hours	hour	NNS
37894	817	26	,	,	,
37894	817	27	or	or	CC
37894	817	28	at	at	IN
37894	817	29	all	all	DT
37894	817	30	localities	locality	NNS
37894	817	31	,	,	,
37894	817	32	or	or	CC
37894	817	33	even	even	RB
37894	817	34	on	on	IN
37894	817	35	all	all	DT
37894	817	36	one	one	CD
37894	817	37	-	-	HYPH
37894	817	38	mile	mile	NN
37894	817	39	fronts	front	NNS
37894	817	40	in	in	IN
37894	817	41	the	the	DT
37894	817	42	same	same	JJ
37894	817	43	locality	locality	NN
37894	817	44	.	.	.
37894	818	1	On	on	IN
37894	818	2	the	the	DT
37894	818	3	contrary	contrary	NN
37894	818	4	,	,	,
37894	818	5	there	there	EX
37894	818	6	is	be	VBZ
37894	818	7	evidence	evidence	NN
37894	818	8	of	of	IN
37894	818	9	a	a	DT
37894	818	10	pronounced	pronounced	JJ
37894	818	11	but	but	CC
37894	818	12	orderly	orderly	JJ
37894	818	13	change	change	NN
37894	818	14	through	through	IN
37894	818	15	the	the	DT
37894	818	16	night	night	NN
37894	818	17	in	in	IN
37894	818	18	the	the	DT
37894	818	19	intensity	intensity	NN
37894	818	20	of	of	IN
37894	818	21	the	the	DT
37894	818	22	flight	flight	NN
37894	818	23	,	,	,
37894	818	24	corresponding	correspond	VBG
37894	818	25	to	to	IN
37894	818	26	a	a	DT
37894	818	27	basic	basic	JJ
37894	818	28	and	and	CC
37894	818	29	definitely	definitely	RB
37894	818	30	timed	time	VBD
37894	818	31	cycle	cycle	NN
37894	818	32	of	of	IN
37894	818	33	activity	activity	NN
37894	818	34	.	.	.
37894	819	1	Other	other	JJ
37894	819	2	influences	influence	NNS
37894	819	3	may	may	MD
37894	819	4	interfere	interfere	VB
37894	819	5	with	with	IN
37894	819	6	the	the	DT
37894	819	7	direct	direct	JJ
37894	819	8	expression	expression	NN
37894	819	9	of	of	IN
37894	819	10	this	this	DT
37894	819	11	temporal	temporal	JJ
37894	819	12	rhythm	rhythm	NN
37894	819	13	as	as	IN
37894	819	14	it	-PRON-	PRP
37894	819	15	is	be	VBZ
37894	819	16	exhibited	exhibit	VBN
37894	819	17	by	by	IN
37894	819	18	observations	observation	NNS
37894	819	19	at	at	IN
37894	819	20	a	a	DT
37894	819	21	particular	particular	JJ
37894	819	22	geographical	geographical	JJ
37894	819	23	location	location	NN
37894	819	24	.	.	.
37894	820	1	Among	among	IN
37894	820	2	these	these	DT
37894	820	3	,	,	,
37894	820	4	as	as	IN
37894	820	5	we	-PRON-	PRP
37894	820	6	have	have	VBP
37894	820	7	just	just	RB
37894	820	8	seen	see	VBN
37894	820	9	,	,	,
37894	820	10	is	be	VBZ
37894	820	11	the	the	DT
37894	820	12	disposition	disposition	NN
37894	820	13	of	of	IN
37894	820	14	the	the	DT
37894	820	15	areas	area	NNS
37894	820	16	that	that	WDT
37894	820	17	offer	offer	VBP
37894	820	18	suitable	suitable	JJ
37894	820	19	resting	resting	NN
37894	820	20	places	place	NNS
37894	820	21	for	for	IN
37894	820	22	transient	transient	JJ
37894	820	23	birds	bird	NNS
37894	820	24	and	and	CC
37894	820	25	hence	hence	RB
37894	820	26	contribute	contribute	VBP
37894	820	27	directly	directly	RB
37894	820	28	and	and	CC
37894	820	29	immediately	immediately	RB
37894	820	30	to	to	IN
37894	820	31	the	the	DT
37894	820	32	flight	flight	NN
37894	820	33	overhead	overhead	RB
37894	820	34	.	.	.
37894	821	1	A	a	DT
37894	821	2	second	second	JJ
37894	821	3	possible	possible	JJ
37894	821	4	geographical	geographical	JJ
37894	821	5	effect	effect	NN
37894	821	6	is	be	VBZ
37894	821	7	linked	link	VBN
37894	821	8	with	with	IN
37894	821	9	the	the	DT
37894	821	10	question	question	NN
37894	821	11	of	of	IN
37894	821	12	the	the	DT
37894	821	13	tendency	tendency	NN
37894	821	14	of	of	IN
37894	821	15	night	night	NN
37894	821	16	migrants	migrant	NNS
37894	821	17	to	to	TO
37894	821	18	follow	follow	VB
37894	821	19	topographical	topographical	JJ
37894	821	20	features	feature	NNS
37894	821	21	.	.	.
37894	822	1	_	_	NNP
37894	822	2	General	General	NNP
37894	822	3	Aspects	Aspects	NNPS
37894	822	4	of	of	IN
37894	822	5	the	the	DT
37894	822	6	Topographical	Topographical	NNP
37894	822	7	Problem	Problem	NNP
37894	822	8	_	_	NNP
37894	822	9	That	that	DT
37894	822	10	many	many	JJ
37894	822	11	diurnal	diurnal	JJ
37894	822	12	migrants	migrant	NNS
37894	822	13	tend	tend	VBP
37894	822	14	to	to	TO
37894	822	15	fly	fly	VB
37894	822	16	along	along	IN
37894	822	17	shorelines	shoreline	NNS
37894	822	18	,	,	,
37894	822	19	rivers	river	NNS
37894	822	20	,	,	,
37894	822	21	and	and	CC
37894	822	22	mountain	mountain	NN
37894	822	23	ridges	ridge	NNS
37894	822	24	is	be	VBZ
37894	822	25	well	well	RB
37894	822	26	known	known	JJ
37894	822	27	,	,	,
37894	822	28	but	but	CC
37894	822	29	this	this	DT
37894	822	30	fact	fact	NN
37894	822	31	provides	provide	VBZ
37894	822	32	no	no	DT
37894	822	33	assurance	assurance	NN
37894	822	34	that	that	DT
37894	822	35	night	night	NN
37894	822	36	migrants	migrant	NNS
37894	822	37	do	do	VBP
37894	822	38	the	the	DT
37894	822	39	same	same	JJ
37894	822	40	thing	thing	NN
37894	822	41	.	.	.
37894	823	1	Many	many	JJ
37894	823	2	of	of	IN
37894	823	3	the	the	DT
37894	823	4	obvious	obvious	JJ
37894	823	5	advantages	advantage	NNS
37894	823	6	of	of	IN
37894	823	7	specialized	specialized	JJ
37894	823	8	routes	route	NNS
37894	823	9	in	in	IN
37894	823	10	daylight	daylight	NN
37894	823	11	,	,	,
37894	823	12	such	such	JJ
37894	823	13	as	as	IN
37894	823	14	feeding	feed	VBG
37894	823	15	opportunities	opportunity	NNS
37894	823	16	,	,	,
37894	823	17	the	the	DT
37894	823	18	lift	lift	NN
37894	823	19	provided	provide	VBN
37894	823	20	by	by	IN
37894	823	21	thermal	thermal	JJ
37894	823	22	updrafts	updraft	NNS
37894	823	23	,	,	,
37894	823	24	and	and	CC
37894	823	25	the	the	DT
37894	823	26	possible	possible	JJ
37894	823	27	aid	aid	NN
37894	823	28	of	of	IN
37894	823	29	certain	certain	JJ
37894	823	30	landmarks	landmark	NNS
37894	823	31	in	in	IN
37894	823	32	navigation	navigation	NN
37894	823	33	,	,	,
37894	823	34	assume	assume	VBP
37894	823	35	less	less	JJR
37894	823	36	importance	importance	NN
37894	823	37	after	after	IN
37894	823	38	night	night	NN
37894	823	39	falls	fall	VBZ
37894	823	40	.	.	.
37894	824	1	Therefore	therefore	RB
37894	824	2	,	,	,
37894	824	3	it	-PRON-	PRP
37894	824	4	would	would	MD
37894	824	5	not	not	RB
37894	824	6	be	be	VB
37894	824	7	safe	safe	JJ
37894	824	8	to	to	TO
37894	824	9	conclude	conclude	VB
37894	824	10	that	that	IN
37894	824	11	_	_	NNP
37894	824	12	all	all	DT
37894	824	13	_	_	NNP
37894	824	14	nocturnal	nocturnal	JJ
37894	824	15	migrants	migrant	NNS
37894	824	16	operate	operate	VBP
37894	824	17	as	as	IN
37894	824	18	do	do	VBP
37894	824	19	_	_	NNP
37894	824	20	some	some	DT
37894	824	21	_	_	NNP
37894	824	22	diurnal	diurnal	JJ
37894	824	23	migrants	migrant	NNS
37894	824	24	.	.	.
37894	825	1	For	for	IN
37894	825	2	instance	instance	NN
37894	825	3	,	,	,
37894	825	4	the	the	DT
37894	825	5	passage	passage	NN
37894	825	6	of	of	IN
37894	825	7	great	great	JJ
37894	825	8	numbers	number	NNS
37894	825	9	of	of	IN
37894	825	10	certain	certain	JJ
37894	825	11	species	specie	NNS
37894	825	12	of	of	IN
37894	825	13	birds	bird	NNS
37894	825	14	along	along	IN
37894	825	15	the	the	DT
37894	825	16	Texas	Texas	NNP
37894	825	17	coast	coast	NN
37894	825	18	in	in	IN
37894	825	19	daylight	daylight	NN
37894	825	20	hours	hour	NNS
37894	825	21	can	can	MD
37894	825	22	not	not	RB
37894	825	23	be	be	VB
37894	825	24	regarded	regard	VBN
37894	825	25	as	as	IN
37894	825	26	certain	certain	JJ
37894	825	27	proof	proof	NN
37894	825	28	that	that	IN
37894	825	29	the	the	DT
37894	825	30	larger	large	JJR
37894	825	31	part	part	NN
37894	825	32	of	of	IN
37894	825	33	the	the	DT
37894	825	34	nocturnal	nocturnal	JJ
37894	825	35	flight	flight	NN
37894	825	36	uses	use	VBZ
37894	825	37	the	the	DT
37894	825	38	same	same	JJ
37894	825	39	route	route	NN
37894	825	40	.	.	.
37894	826	1	Neither	neither	CC
37894	826	2	can	can	MD
37894	826	3	we	-PRON-	PRP
37894	826	4	assume	assume	VB
37894	826	5	that	that	IN
37894	826	6	birds	bird	NNS
37894	826	7	follow	follow	VBP
37894	826	8	the	the	DT
37894	826	9	Mississippi	Mississippi	NNP
37894	826	10	River	River	NNP
37894	826	11	at	at	IN
37894	826	12	night	night	NN
37894	826	13	simply	simply	RB
37894	826	14	because	because	IN
37894	826	15	we	-PRON-	PRP
37894	826	16	frequently	frequently	RB
37894	826	17	find	find	VBP
37894	826	18	migrants	migrant	NNS
37894	826	19	concentrated	concentrate	VBN
37894	826	20	along	along	IN
37894	826	21	its	-PRON-	PRP$
37894	826	22	course	course	NN
37894	826	23	in	in	IN
37894	826	24	the	the	DT
37894	826	25	day	day	NN
37894	826	26	.	.	.
37894	827	1	Fortunately	fortunately	RB
37894	827	2	we	-PRON-	PRP
37894	827	3	shall	shall	MD
37894	827	4	not	not	RB
37894	827	5	need	need	VB
37894	827	6	to	to	TO
37894	827	7	speculate	speculate	VB
37894	827	8	indefinitely	indefinitely	RB
37894	827	9	on	on	IN
37894	827	10	this	this	DT
37894	827	11	problem	problem	NN
37894	827	12	;	;	:
37894	827	13	for	for	IN
37894	827	14	the	the	DT
37894	827	15	telescopic	telescopic	JJ
37894	827	16	method	method	NN
37894	827	17	offers	offer	VBZ
37894	827	18	a	a	DT
37894	827	19	means	means	NN
37894	827	20	of	of	IN
37894	827	21	study	study	NN
37894	827	22	based	base	VBN
37894	827	23	on	on	IN
37894	827	24	what	what	WDT
37894	827	25	night	night	NN
37894	827	26	migrants	migrant	NNS
37894	827	27	are	be	VBP
37894	827	28	doing	do	VBG
37894	827	29	_	_	NNP
37894	827	30	at	at	IN
37894	827	31	night	night	NN
37894	827	32	_	_	NNP
37894	827	33	.	.	.
37894	828	1	Two	two	CD
37894	828	2	lines	line	NNS
37894	828	3	of	of	IN
37894	828	4	attack	attack	NN
37894	828	5	may	may	MD
37894	828	6	be	be	VB
37894	828	7	pursued	pursue	VBN
37894	828	8	.	.	.
37894	829	1	First	first	RB
37894	829	2	we	-PRON-	PRP
37894	829	3	may	may	MD
37894	829	4	compare	compare	VB
37894	829	5	flight	flight	NN
37894	829	6	densities	density	NNS
37894	829	7	obtained	obtain	VBN
37894	829	8	when	when	WRB
37894	829	9	the	the	DT
37894	829	10	field	field	NN
37894	829	11	of	of	IN
37894	829	12	the	the	DT
37894	829	13	telescope	telescope	NN
37894	829	14	lies	lie	VBZ
37894	829	15	over	over	IN
37894	829	16	some	some	DT
37894	829	17	outstanding	outstanding	JJ
37894	829	18	topographical	topographical	JJ
37894	829	19	feature	feature	NN
37894	829	20	,	,	,
37894	829	21	such	such	JJ
37894	829	22	as	as	IN
37894	829	23	a	a	DT
37894	829	24	river	river	NN
37894	829	25	,	,	,
37894	829	26	with	with	IN
37894	829	27	the	the	DT
37894	829	28	recorded	record	VBN
37894	829	29	volume	volume	NN
37894	829	30	of	of	IN
37894	829	31	flight	flight	NN
37894	829	32	when	when	WRB
37894	829	33	the	the	DT
37894	829	34	cone	cone	NN
37894	829	35	of	of	IN
37894	829	36	observation	observation	NN
37894	829	37	is	be	VBZ
37894	829	38	directed	direct	VBN
37894	829	39	away	away	RB
37894	829	40	from	from	IN
37894	829	41	that	that	DT
37894	829	42	feature	feature	NN
37894	829	43	.	.	.
37894	830	1	Secondly	secondly	RB
37894	830	2	,	,	,
37894	830	3	we	-PRON-	PRP
37894	830	4	may	may	MD
37894	830	5	inquire	inquire	VB
37894	830	6	how	how	WRB
37894	830	7	the	the	DT
37894	830	8	major	major	JJ
37894	830	9	flight	flight	NN
37894	830	10	directions	direction	NNS
37894	830	11	at	at	IN
37894	830	12	a	a	DT
37894	830	13	certain	certain	JJ
37894	830	14	station	station	NN
37894	830	15	are	be	VBP
37894	830	16	oriented	orient	VBN
37894	830	17	with	with	IN
37894	830	18	respect	respect	NN
37894	830	19	to	to	IN
37894	830	20	the	the	DT
37894	830	21	terrain	terrain	NN
37894	830	22	.	.	.
37894	831	1	If	if	IN
37894	831	2	the	the	DT
37894	831	3	flight	flight	NN
37894	831	4	is	be	VBZ
37894	831	5	concentrated	concentrate	VBN
37894	831	6	along	along	IN
37894	831	7	a	a	DT
37894	831	8	river	river	NN
37894	831	9	,	,	,
37894	831	10	for	for	IN
37894	831	11	instance	instance	NN
37894	831	12	,	,	,
37894	831	13	the	the	DT
37894	831	14	flight	flight	NN
37894	831	15	density	density	NN
37894	831	16	curve	curve	NN
37894	831	17	should	should	MD
37894	831	18	climb	climb	VB
37894	831	19	upward	upward	RB
37894	831	20	as	as	IN
37894	831	21	the	the	DT
37894	831	22	cone	cone	NN
37894	831	23	of	of	IN
37894	831	24	observation	observation	NN
37894	831	25	swings	swing	NNS
37894	831	26	over	over	IN
37894	831	27	the	the	DT
37894	831	28	river	river	NN
37894	831	29	,	,	,
37894	831	30	_	_	NNP
37894	831	31	regardless	regardless	RB
37894	831	32	of	of	IN
37894	831	33	the	the	DT
37894	831	34	hour	hour	NN
37894	831	35	at	at	IN
37894	831	36	which	which	WDT
37894	831	37	it	-PRON-	PRP
37894	831	38	does	do	VBZ
37894	831	39	so	so	RB
37894	831	40	_	_	NNP
37894	831	41	.	.	.
37894	832	1	The	the	DT
37894	832	2	effect	effect	NN
37894	832	3	should	should	MD
37894	832	4	be	be	VB
37894	832	5	most	most	RBS
37894	832	6	pronounced	pronounce	VBN
37894	832	7	if	if	IN
37894	832	8	the	the	DT
37894	832	9	observer	observer	NN
37894	832	10	were	be	VBD
37894	832	11	situated	situate	VBN
37894	832	12	on	on	IN
37894	832	13	the	the	DT
37894	832	14	river	river	NN
37894	832	15	bank	bank	NN
37894	832	16	,	,	,
37894	832	17	so	so	IN
37894	832	18	that	that	IN
37894	832	19	the	the	DT
37894	832	20	cone	cone	NN
37894	832	21	would	would	MD
37894	832	22	eventually	eventually	RB
37894	832	23	come	come	VB
37894	832	24	to	to	IN
37894	832	25	a	a	DT
37894	832	26	position	position	NN
37894	832	27	directly	directly	RB
37894	832	28	along	along	IN
37894	832	29	the	the	DT
37894	832	30	watercourse	watercourse	NN
37894	832	31	.	.	.
37894	833	1	Though	though	IN
37894	833	2	in	in	IN
37894	833	3	that	that	DT
37894	833	4	event	event	NN
37894	833	5	birds	bird	NNS
37894	833	6	coming	come	VBG
37894	833	7	up	up	IN
37894	833	8	the	the	DT
37894	833	9	river	river	NN
37894	833	10	route	route	NN
37894	833	11	would	would	MD
37894	833	12	be	be	VB
37894	833	13	flying	fly	VBG
37894	833	14	across	across	IN
37894	833	15	the	the	DT
37894	833	16	short	short	JJ
37894	833	17	axis	axi	NNS
37894	833	18	of	of	IN
37894	833	19	an	an	DT
37894	833	20	elliptical	elliptical	JJ
37894	833	21	section	section	NN
37894	833	22	of	of	IN
37894	833	23	the	the	DT
37894	833	24	cone	cone	NN
37894	833	25	,	,	,
37894	833	26	the	the	DT
37894	833	27	fact	fact	NN
37894	833	28	that	that	IN
37894	833	29	the	the	DT
37894	833	30	whole	whole	JJ
37894	833	31	field	field	NN
37894	833	32	of	of	IN
37894	833	33	observation	observation	NN
37894	833	34	would	would	MD
37894	833	35	be	be	VB
37894	833	36	in	in	IN
37894	833	37	their	-PRON-	PRP$
37894	833	38	path	path	NN
37894	833	39	should	should	MD
37894	833	40	insure	insure	VB
37894	833	41	their	-PRON-	PRP$
37894	833	42	being	be	VBG
37894	833	43	seen	see	VBN
37894	833	44	in	in	IN
37894	833	45	maximum	maximum	JJ
37894	833	46	proportions	proportion	NNS
37894	833	47	.	.	.
37894	834	1	If	if	IN
37894	834	2	,	,	,
37894	834	3	on	on	IN
37894	834	4	the	the	DT
37894	834	5	other	other	JJ
37894	834	6	hand	hand	NN
37894	834	7	,	,	,
37894	834	8	the	the	DT
37894	834	9	telescope	telescope	NN
37894	834	10	were	be	VBD
37894	834	11	set	set	VBN
37894	834	12	up	up	RP
37894	834	13	some	some	DT
37894	834	14	distance	distance	NN
37894	834	15	away	away	RB
37894	834	16	from	from	IN
37894	834	17	the	the	DT
37894	834	18	river	river	NN
37894	834	19	so	so	IN
37894	834	20	that	that	IN
37894	834	21	the	the	DT
37894	834	22	cone	cone	NN
37894	834	23	merely	merely	RB
37894	834	24	moved	move	VBD
37894	834	25	_	_	NNP
37894	834	26	across	across	IN
37894	834	27	_	_	NNP
37894	834	28	its	-PRON-	PRP$
37894	834	29	course	course	NN
37894	834	30	,	,	,
37894	834	31	only	only	RB
37894	834	32	a	a	DT
37894	834	33	section	section	NN
37894	834	34	of	of	IN
37894	834	35	the	the	DT
37894	834	36	observation	observation	NN
37894	834	37	field	field	NN
37894	834	38	would	would	MD
37894	834	39	be	be	VB
37894	834	40	interposed	interpose	VBN
37894	834	41	on	on	IN
37894	834	42	the	the	DT
37894	834	43	main	main	JJ
37894	834	44	flight	flight	NN
37894	834	45	lane	lane	NN
37894	834	46	.	.	.
37894	835	1	The	the	DT
37894	835	2	interaction	interaction	NN
37894	835	3	of	of	IN
37894	835	4	these	these	DT
37894	835	5	possibilities	possibility	NNS
37894	835	6	with	with	IN
37894	835	7	the	the	DT
37894	835	8	activity	activity	NN
37894	835	9	rhythm	rhythm	NN
37894	835	10	should	should	MD
37894	835	11	have	have	VB
37894	835	12	a	a	DT
37894	835	13	variety	variety	NN
37894	835	14	of	of	IN
37894	835	15	effects	effect	NNS
37894	835	16	on	on	IN
37894	835	17	the	the	DT
37894	835	18	flight	flight	NN
37894	835	19	density	density	NN
37894	835	20	curves	curve	NNS
37894	835	21	.	.	.
37894	836	1	If	if	IN
37894	836	2	the	the	DT
37894	836	3	cone	cone	NN
37894	836	4	comes	come	VBZ
37894	836	5	to	to	TO
37894	836	6	lie	lie	VB
37894	836	7	over	over	IN
37894	836	8	the	the	DT
37894	836	9	favored	favor	VBN
37894	836	10	topographical	topographical	JJ
37894	836	11	feature	feature	NN
37894	836	12	in	in	IN
37894	836	13	the	the	DT
37894	836	14	hour	hour	NN
37894	836	15	of	of	IN
37894	836	16	greatest	great	JJS
37894	836	17	migrational	migrational	JJ
37894	836	18	activity	activity	NN
37894	836	19	,	,	,
37894	836	20	the	the	DT
37894	836	21	results	result	NNS
37894	836	22	would	would	MD
37894	836	23	be	be	VB
37894	836	24	a	a	DT
37894	836	25	simple	simple	JJ
37894	836	26	sharp	sharp	JJ
37894	836	27	peak	peak	NN
37894	836	28	of	of	IN
37894	836	29	doubtful	doubtful	JJ
37894	836	30	meaning	meaning	NN
37894	836	31	.	.	.
37894	837	1	However	however	RB
37894	837	2	,	,	,
37894	837	3	since	since	IN
37894	837	4	the	the	DT
37894	837	5	moon	moon	NN
37894	837	6	rises	rise	VBZ
37894	837	7	at	at	IN
37894	837	8	a	a	DT
37894	837	9	different	different	JJ
37894	837	10	time	time	NN
37894	837	11	each	each	DT
37894	837	12	evening	evening	NN
37894	837	13	,	,	,
37894	837	14	the	the	DT
37894	837	15	cone	cone	NN
37894	837	16	likewise	likewise	RB
37894	837	17	would	would	MD
37894	837	18	reach	reach	VB
37894	837	19	the	the	DT
37894	837	20	immediate	immediate	JJ
37894	837	21	vicinity	vicinity	NN
37894	837	22	of	of	IN
37894	837	23	the	the	DT
37894	837	24	terrain	terrain	NN
37894	837	25	feature	feature	NN
37894	837	26	at	at	IN
37894	837	27	a	a	DT
37894	837	28	different	different	JJ
37894	837	29	time	time	NN
37894	837	30	each	each	DT
37894	837	31	night	night	NN
37894	837	32	.	.	.
37894	838	1	As	as	IN
37894	838	2	a	a	DT
37894	838	3	result	result	NN
37894	838	4	,	,	,
37894	838	5	the	the	DT
37894	838	6	terrain	terrain	NN
37894	838	7	peak	peak	NN
37894	838	8	would	would	MD
37894	838	9	move	move	VB
37894	838	10	away	away	RB
37894	838	11	from	from	IN
37894	838	12	its	-PRON-	PRP$
37894	838	13	position	position	NN
37894	838	14	of	of	IN
37894	838	15	coincidence	coincidence	NN
37894	838	16	with	with	IN
37894	838	17	the	the	DT
37894	838	18	time	time	NN
37894	838	19	peak	peak	NN
37894	838	20	on	on	IN
37894	838	21	successive	successive	JJ
37894	838	22	dates	date	NNS
37894	838	23	,	,	,
37894	838	24	producing	produce	VBG
37894	838	25	first	first	RB
37894	838	26	,	,	,
37894	838	27	perhaps	perhaps	RB
37894	838	28	,	,	,
37894	838	29	a	a	DT
37894	838	30	sustention	sustention	NN
37894	838	31	of	of	IN
37894	838	32	peak	peak	NN
37894	838	33	and	and	CC
37894	838	34	later	later	RB
37894	838	35	a	a	DT
37894	838	36	definitely	definitely	RB
37894	838	37	bimodal	bimodal	JJ
37894	838	38	curve	curve	NN
37894	838	39	.	.	.
37894	839	1	Since	since	IN
37894	839	2	other	other	JJ
37894	839	3	hypotheses	hypothesis	NNS
37894	839	4	explain	explain	VBP
37894	839	5	double	double	JJ
37894	839	6	peaks	peak	NNS
37894	839	7	equally	equally	RB
37894	839	8	well	well	RB
37894	839	9	,	,	,
37894	839	10	their	-PRON-	PRP$
37894	839	11	mere	mere	JJ
37894	839	12	existence	existence	NN
37894	839	13	does	do	VBZ
37894	839	14	not	not	RB
37894	839	15	necessarily	necessarily	RB
37894	839	16	imply	imply	VB
37894	839	17	that	that	IN
37894	839	18	migrants	migrant	NNS
37894	839	19	actually	actually	RB
37894	839	20	do	do	VBP
37894	839	21	travel	travel	NN
37894	839	22	along	along	IN
37894	839	23	narrow	narrow	JJ
37894	839	24	topographical	topographical	JJ
37894	839	25	lanes	lane	NNS
37894	839	26	.	.	.
37894	840	1	Real	real	JJ
37894	840	2	proof	proof	NN
37894	840	3	requires	require	VBZ
37894	840	4	that	that	IN
37894	840	5	we	-PRON-	PRP
37894	840	6	demonstrate	demonstrate	VBP
37894	840	7	a	a	DT
37894	840	8	moving	move	VBG
37894	840	9	peak	peak	NN
37894	840	10	,	,	,
37894	840	11	based	base	VBN
37894	840	12	on	on	IN
37894	840	13	properly	properly	RB
37894	840	14	corrected	correct	VBN
37894	840	15	density	density	NN
37894	840	16	computations	computation	NNS
37894	840	17	,	,	,
37894	840	18	corresponding	correspond	VBG
37894	840	19	always	always	RB
37894	840	20	with	with	IN
37894	840	21	the	the	DT
37894	840	22	position	position	NN
37894	840	23	of	of	IN
37894	840	24	the	the	DT
37894	840	25	cone	cone	NN
37894	840	26	over	over	IN
37894	840	27	the	the	DT
37894	840	28	most	most	RBS
37894	840	29	favored	favored	JJ
37894	840	30	terrain	terrain	NN
37894	840	31	,	,	,
37894	840	32	and	and	CC
37894	840	33	that	that	IN
37894	840	34	the	the	DT
37894	840	35	flight	flight	NN
37894	840	36	vectors	vector	NNS
37894	840	37	be	be	VB
37894	840	38	consistent	consistent	JJ
37894	840	39	with	with	IN
37894	840	40	the	the	DT
37894	840	41	picture	picture	NN
37894	840	42	thus	thus	RB
37894	840	43	engendered	engender	VBD
37894	840	44	.	.	.
37894	841	1	_	_	NNP
37894	841	2	The	the	DT
37894	841	3	Work	Work	NNP
37894	841	4	of	of	IN
37894	841	5	Winkenwerder	Winkenwerder	NNP
37894	841	6	_	_	NNP
37894	841	7	To	to	IN
37894	841	8	date	date	NN
37894	841	9	,	,	,
37894	841	10	none	none	NN
37894	841	11	of	of	IN
37894	841	12	the	the	DT
37894	841	13	evidence	evidence	NN
37894	841	14	in	in	IN
37894	841	15	favor	favor	NN
37894	841	16	of	of	IN
37894	841	17	the	the	DT
37894	841	18	topographical	topographical	JJ
37894	841	19	hypothesis	hypothesis	NN
37894	841	20	completely	completely	RB
37894	841	21	fills	fill	VBZ
37894	841	22	these	these	DT
37894	841	23	requirements	requirement	NNS
37894	841	24	.	.	.
37894	842	1	Winkenwerder	Winkenwerder	NNP
37894	842	2	(	(	-LRB-
37894	842	3	_	_	NNP
37894	842	4	loc	loc	NN
37894	842	5	.	.	.
37894	843	1	cit	cit	NNP
37894	843	2	.	.	.
37894	843	3	_	_	NNP
37894	843	4	)	)	-RRB-
37894	843	5	,	,	,
37894	843	6	in	in	IN
37894	843	7	analyzing	analyze	VBG
37894	843	8	the	the	DT
37894	843	9	results	result	NNS
37894	843	10	of	of	IN
37894	843	11	telescopic	telescopic	NN
37894	843	12	counts	count	NNS
37894	843	13	of	of	IN
37894	843	14	birds	bird	NNS
37894	843	15	at	at	IN
37894	843	16	Madison	Madison	NNP
37894	843	17	and	and	CC
37894	843	18	Beloit	Beloit	NNP
37894	843	19	,	,	,
37894	843	20	Wisconsin	Wisconsin	NNP
37894	843	21	,	,	,
37894	843	22	Detroit	Detroit	NNP
37894	843	23	and	and	CC
37894	843	24	Ann	Ann	NNP
37894	843	25	Arbor	Arbor	NNP
37894	843	26	,	,	,
37894	843	27	Michigan	Michigan	NNP
37894	843	28	,	,	,
37894	843	29	and	and	CC
37894	843	30	at	at	IN
37894	843	31	Lake	Lake	NNP
37894	843	32	Forest	Forest	NNP
37894	843	33	,	,	,
37894	843	34	Illinois	Illinois	NNP
37894	843	35	,	,	,
37894	843	36	between	between	IN
37894	843	37	1898	1898	CD
37894	843	38	and	and	CC
37894	843	39	1900	1900	CD
37894	843	40	,	,	,
37894	843	41	plotted	plot	VBD
37894	843	42	the	the	DT
37894	843	43	number	number	NN
37894	843	44	of	of	IN
37894	843	45	birds	bird	NNS
37894	843	46	seen	see	VBN
37894	843	47	at	at	IN
37894	843	48	fifteen	fifteen	CD
37894	843	49	-	-	HYPH
37894	843	50	minute	minute	NN
37894	843	51	intervals	interval	NNS
37894	843	52	as	as	IN
37894	843	53	a	a	DT
37894	843	54	function	function	NN
37894	843	55	of	of	IN
37894	843	56	the	the	DT
37894	843	57	time	time	NN
37894	843	58	of	of	IN
37894	843	59	the	the	DT
37894	843	60	night	night	NN
37894	843	61	.	.	.
37894	844	1	He	-PRON-	PRP
37894	844	2	believed	believe	VBD
37894	844	3	that	that	IN
37894	844	4	the	the	DT
37894	844	5	high	high	JJ
37894	844	6	points	point	NNS
37894	844	7	in	in	IN
37894	844	8	the	the	DT
37894	844	9	resulting	result	VBG
37894	844	10	frequency	frequency	NN
37894	844	11	histograms	histogram	NNS
37894	844	12	represented	represent	VBD
37894	844	13	intervals	interval	NNS
37894	844	14	when	when	WRB
37894	844	15	the	the	DT
37894	844	16	field	field	NN
37894	844	17	of	of	IN
37894	844	18	the	the	DT
37894	844	19	telescope	telescope	NN
37894	844	20	was	be	VBD
37894	844	21	moving	move	VBG
37894	844	22	over	over	IN
37894	844	23	certain	certain	JJ
37894	844	24	topographically	topographically	RB
37894	844	25	determined	determine	VBN
37894	844	26	flight	flight	NN
37894	844	27	lanes	lane	NNS
37894	844	28	,	,	,
37894	844	29	though	though	IN
37894	844	30	he	-PRON-	PRP
37894	844	31	did	do	VBD
37894	844	32	not	not	RB
37894	844	33	specify	specify	VB
37894	844	34	in	in	IN
37894	844	35	all	all	DT
37894	844	36	cases	case	NNS
37894	844	37	just	just	RB
37894	844	38	what	what	WP
37894	844	39	he	-PRON-	PRP
37894	844	40	assumed	assume	VBD
37894	844	41	the	the	DT
37894	844	42	critical	critical	JJ
37894	844	43	physiographic	physiographic	NN
37894	844	44	features	feature	NNS
37894	844	45	to	to	TO
37894	844	46	be	be	VB
37894	844	47	.	.	.
37894	845	1	Especially	especially	RB
37894	845	2	convincing	convincing	JJ
37894	845	3	to	to	IN
37894	845	4	him	-PRON-	PRP
37894	845	5	were	be	VBD
37894	845	6	results	result	NNS
37894	845	7	obtained	obtain	VBN
37894	845	8	at	at	IN
37894	845	9	Beloit	Beloit	NNP
37894	845	10	,	,	,
37894	845	11	where	where	WRB
37894	845	12	the	the	DT
37894	845	13	telescope	telescope	NN
37894	845	14	was	be	VBD
37894	845	15	situated	situate	VBN
37894	845	16	on	on	IN
37894	845	17	the	the	DT
37894	845	18	east	east	NNP
37894	845	19	bank	bank	NNP
37894	845	20	of	of	IN
37894	845	21	the	the	DT
37894	845	22	Rock	Rock	NNP
37894	845	23	River	River	NNP
37894	845	24	,	,	,
37894	845	25	on	on	IN
37894	845	26	the	the	DT
37894	845	27	south	south	JJ
37894	845	28	side	side	NN
37894	845	29	of	of	IN
37894	845	30	the	the	DT
37894	845	31	city	city	NN
37894	845	32	.	.	.
37894	846	1	Immediately	immediately	RB
37894	846	2	below	below	IN
37894	846	3	Beloit	Beloit	NNP
37894	846	4	the	the	DT
37894	846	5	river	river	NN
37894	846	6	turns	turn	VBZ
37894	846	7	southwestward	southwestward	NN
37894	846	8	and	and	CC
37894	846	9	continues	continue	VBZ
37894	846	10	in	in	IN
37894	846	11	this	this	DT
37894	846	12	direction	direction	NN
37894	846	13	about	about	RB
37894	846	14	five	five	CD
37894	846	15	miles	mile	NNS
37894	846	16	before	before	IN
37894	846	17	turning	turn	VBG
37894	846	18	again	again	RB
37894	846	19	to	to	TO
37894	846	20	flow	flow	VB
37894	846	21	in	in	IN
37894	846	22	a	a	DT
37894	846	23	southeastward	southeastward	JJ
37894	846	24	course	course	NN
37894	846	25	for	for	IN
37894	846	26	approximately	approximately	RB
37894	846	27	another	another	DT
37894	846	28	five	five	CD
37894	846	29	miles	mile	NNS
37894	846	30	.	.	.
37894	847	1	In	in	IN
37894	847	2	this	this	DT
37894	847	3	setting	setting	NN
37894	847	4	,	,	,
37894	847	5	on	on	IN
37894	847	6	two	two	CD
37894	847	7	consecutive	consecutive	JJ
37894	847	8	nights	night	NNS
37894	847	9	of	of	IN
37894	847	10	observation	observation	NN
37894	847	11	in	in	IN
37894	847	12	May	May	NNP
37894	847	13	,	,	,
37894	847	14	the	the	DT
37894	847	15	number	number	NN
37894	847	16	of	of	IN
37894	847	17	birds	bird	NNS
37894	847	18	observed	observe	VBN
37894	847	19	increased	increase	VBD
37894	847	20	tremendously	tremendously	RB
37894	847	21	in	in	IN
37894	847	22	the	the	DT
37894	847	23	2	2	CD
37894	847	24	to	to	TO
37894	847	25	3	3	CD
37894	847	26	A.	a.	NN
37894	847	27	M.	M.	NNP
37894	847	28	interval	interval	NN
37894	847	29	,	,	,
37894	847	30	when	when	WRB
37894	847	31	,	,	,
37894	847	32	according	accord	VBG
37894	847	33	to	to	IN
37894	847	34	Winkenwerder	Winkenwerder	NNP
37894	847	35	's	's	POS
37894	847	36	interpretation	interpretation	NN
37894	847	37	of	of	IN
37894	847	38	the	the	DT
37894	847	39	data	datum	NNS
37894	847	40	(	(	-LRB-
37894	847	41	he	-PRON-	PRP
37894	847	42	did	do	VBD
37894	847	43	not	not	RB
37894	847	44	make	make	VB
37894	847	45	the	the	DT
37894	847	46	original	original	JJ
37894	847	47	observations	observation	NNS
37894	847	48	at	at	IN
37894	847	49	Beloit	Beloit	NNP
37894	847	50	himself	-PRON-	PRP
37894	847	51	)	)	-RRB-
37894	847	52	,	,	,
37894	847	53	the	the	DT
37894	847	54	telescope	telescope	NN
37894	847	55	was	be	VBD
37894	847	56	pointing	point	VBG
37894	847	57	directly	directly	RB
37894	847	58	down	down	IN
37894	847	59	the	the	DT
37894	847	60	course	course	NN
37894	847	61	of	of	IN
37894	847	62	the	the	DT
37894	847	63	river	river	NN
37894	847	64	.	.	.
37894	848	1	This	this	DT
37894	848	2	conclusion	conclusion	NN
37894	848	3	is	be	VBZ
37894	848	4	weakened	weaken	VBN
37894	848	5	,	,	,
37894	848	6	however	however	RB
37894	848	7	,	,	,
37894	848	8	by	by	IN
37894	848	9	notable	notable	JJ
37894	848	10	inconsistencies	inconsistency	NNS
37894	848	11	.	.	.
37894	849	1	Since	since	IN
37894	849	2	the	the	DT
37894	849	3	moon	moon	NN
37894	849	4	rises	rise	VBZ
37894	849	5	later	later	RB
37894	849	6	each	each	DT
37894	849	7	evening	evening	NN
37894	849	8	,	,	,
37894	849	9	it	-PRON-	PRP
37894	849	10	could	could	MD
37894	849	11	not	not	RB
37894	849	12	have	have	VB
37894	849	13	reached	reach	VBN
37894	849	14	the	the	DT
37894	849	15	same	same	JJ
37894	849	16	position	position	NN
37894	849	17	over	over	IN
37894	849	18	the	the	DT
37894	849	19	Rock	Rock	NNP
37894	849	20	River	River	NNP
37894	849	21	at	at	IN
37894	849	22	the	the	DT
37894	849	23	same	same	JJ
37894	849	24	time	time	NN
37894	849	25	on	on	IN
37894	849	26	both	both	DT
37894	849	27	May	May	NNP
37894	849	28	12	12	CD
37894	849	29	-	-	SYM
37894	849	30	13	13	CD
37894	849	31	and	and	CC
37894	849	32	May	May	NNP
37894	849	33	13	13	CD
37894	849	34	-	-	SYM
37894	849	35	14	14	CD
37894	849	36	,	,	,
37894	849	37	and	and	CC
37894	849	38	therefore	therefore	RB
37894	849	39	,	,	,
37894	849	40	if	if	IN
37894	849	41	the	the	DT
37894	849	42	peaks	peak	NNS
37894	849	43	in	in	IN
37894	849	44	the	the	DT
37894	849	45	graph	graph	NN
37894	849	46	were	be	VBD
37894	849	47	really	really	RB
37894	849	48	due	due	JJ
37894	849	49	to	to	IN
37894	849	50	a	a	DT
37894	849	51	greater	great	JJR
37894	849	52	volume	volume	NN
37894	849	53	of	of	IN
37894	849	54	migration	migration	NN
37894	849	55	along	along	IN
37894	849	56	the	the	DT
37894	849	57	watercourse	watercourse	NN
37894	849	58	,	,	,
37894	849	59	they	-PRON-	PRP
37894	849	60	should	should	MD
37894	849	61	not	not	RB
37894	849	62	have	have	VB
37894	849	63	so	so	RB
37894	849	64	nearly	nearly	RB
37894	849	65	coincided	coincide	VBN
37894	849	66	.	.	.
37894	850	1	As	as	IN
37894	850	2	a	a	DT
37894	850	3	matter	matter	NN
37894	850	4	of	of	IN
37894	850	5	fact	fact	NN
37894	850	6	the	the	DT
37894	850	7	incidence	incidence	NN
37894	850	8	of	of	IN
37894	850	9	the	the	DT
37894	850	10	peak	peak	NN
37894	850	11	on	on	IN
37894	850	12	May	May	NNP
37894	850	13	12	12	CD
37894	850	14	-	-	SYM
37894	850	15	13	13	CD
37894	850	16	should	should	MD
37894	850	17	have	have	VB
37894	850	18	preceded	precede	VBN
37894	850	19	that	that	DT
37894	850	20	of	of	IN
37894	850	21	the	the	DT
37894	850	22	peak	peak	NN
37894	850	23	on	on	IN
37894	850	24	May	May	NNP
37894	850	25	13	13	CD
37894	850	26	-	-	SYM
37894	850	27	14	14	CD
37894	850	28	;	;	:
37894	850	29	whereas	whereas	IN
37894	850	30	his	-PRON-	PRP$
37894	850	31	figure	figure	NN
37894	850	32	shows	show	VBZ
37894	850	33	the	the	DT
37894	850	34	reverse	reverse	NN
37894	850	35	to	to	TO
37894	850	36	have	have	VB
37894	850	37	been	be	VBN
37894	850	38	true	true	JJ
37894	850	39	.	.	.
37894	851	1	Singularly	singularly	RB
37894	851	2	enough	enough	RB
37894	851	3	,	,	,
37894	851	4	Winkenwerder	Winkenwerder	NNP
37894	851	5	recognized	recognize	VBD
37894	851	6	this	this	DT
37894	851	7	difficulty	difficulty	NN
37894	851	8	in	in	IN
37894	851	9	his	-PRON-	PRP$
37894	851	10	treatment	treatment	NN
37894	851	11	of	of	IN
37894	851	12	the	the	DT
37894	851	13	data	datum	NNS
37894	851	14	from	from	IN
37894	851	15	Madison	Madison	NNP
37894	851	16	,	,	,
37894	851	17	Wisconsin	Wisconsin	NNP
37894	851	18	.	.	.
37894	852	1	Unable	unable	JJ
37894	852	2	to	to	TO
37894	852	3	correlate	correlate	VB
37894	852	4	the	the	DT
37894	852	5	peak	peak	NN
37894	852	6	period	period	NN
37894	852	7	with	with	IN
37894	852	8	the	the	DT
37894	852	9	Madison	Madison	NNP
37894	852	10	terrain	terrain	NN
37894	852	11	by	by	IN
37894	852	12	the	the	DT
37894	852	13	approach	approach	NN
37894	852	14	used	use	VBN
37894	852	15	for	for	IN
37894	852	16	Beloit	Beloit	NNP
37894	852	17	,	,	,
37894	852	18	he	-PRON-	PRP
37894	852	19	plotted	plot	VBD
37894	852	20	the	the	DT
37894	852	21	observations	observation	NNS
37894	852	22	in	in	IN
37894	852	23	terms	term	NNS
37894	852	24	of	of	IN
37894	852	25	hours	hour	NNS
37894	852	26	after	after	IN
37894	852	27	moonrise	moonrise	NN
37894	852	28	instead	instead	RB
37894	852	29	of	of	IN
37894	852	30	standard	standard	JJ
37894	852	31	time	time	NN
37894	852	32	.	.	.
37894	853	1	This	this	DT
37894	853	2	procedure	procedure	NN
37894	853	3	was	be	VBD
37894	853	4	entirely	entirely	RB
37894	853	5	correct	correct	JJ
37894	853	6	;	;	:
37894	853	7	the	the	DT
37894	853	8	moon	moon	NN
37894	853	9	does	do	VBZ
37894	853	10	reach	reach	VB
37894	853	11	approximately	approximately	RB
37894	853	12	the	the	DT
37894	853	13	same	same	JJ
37894	853	14	position	position	NN
37894	853	15	at	at	IN
37894	853	16	each	each	DT
37894	853	17	hour	hour	NN
37894	853	18	after	after	IN
37894	853	19	its	-PRON-	PRP$
37894	853	20	rise	rise	NN
37894	853	21	on	on	IN
37894	853	22	successive	successive	JJ
37894	853	23	nights	night	NNS
37894	853	24	.	.	.
37894	854	1	The	the	DT
37894	854	2	surprising	surprising	JJ
37894	854	3	thing	thing	NN
37894	854	4	is	be	VBZ
37894	854	5	that	that	IN
37894	854	6	Winkenwerder	Winkenwerder	NNP
37894	854	7	did	do	VBD
37894	854	8	not	not	RB
37894	854	9	seem	seem	VB
37894	854	10	to	to	TO
37894	854	11	realize	realize	VB
37894	854	12	the	the	DT
37894	854	13	incompatibility	incompatibility	NN
37894	854	14	of	of	IN
37894	854	15	his	-PRON-	PRP$
37894	854	16	two	two	CD
37894	854	17	approaches	approach	NNS
37894	854	18	or	or	CC
37894	854	19	to	to	TO
37894	854	20	realize	realize	VB
37894	854	21	that	that	IN
37894	854	22	he	-PRON-	PRP
37894	854	23	was	be	VBD
37894	854	24	simply	simply	RB
37894	854	25	choosing	choose	VBG
37894	854	26	the	the	DT
37894	854	27	method	method	NN
37894	854	28	to	to	TO
37894	854	29	suit	suit	VB
37894	854	30	the	the	DT
37894	854	31	desired	desire	VBN
37894	854	32	results	result	NNS
37894	854	33	.	.	.
37894	855	1	Furthermore	furthermore	RB
37894	855	2	,	,	,
37894	855	3	as	as	IN
37894	855	4	shown	show	VBN
37894	855	5	in	in	IN
37894	855	6	Part	Part	NNP
37894	855	7	I	-PRON-	PRP
37894	855	8	of	of	IN
37894	855	9	this	this	DT
37894	855	10	paper	paper	NN
37894	855	11	,	,	,
37894	855	12	the	the	DT
37894	855	13	number	number	NN
37894	855	14	of	of	IN
37894	855	15	birds	bird	NNS
37894	855	16	seen	see	VBN
37894	855	17	through	through	IN
37894	855	18	the	the	DT
37894	855	19	telescope	telescope	NN
37894	855	20	often	often	RB
37894	855	21	has	have	VBZ
37894	855	22	only	only	RB
37894	855	23	an	an	DT
37894	855	24	indirect	indirect	JJ
37894	855	25	connection	connection	NN
37894	855	26	with	with	IN
37894	855	27	the	the	DT
37894	855	28	actual	actual	JJ
37894	855	29	number	number	NN
37894	855	30	of	of	IN
37894	855	31	birds	bird	NNS
37894	855	32	passing	pass	VBG
37894	855	33	over	over	RP
37894	855	34	.	.	.
37894	856	1	My	-PRON-	PRP$
37894	856	2	computations	computation	NNS
37894	856	3	reveal	reveal	VBP
37894	856	4	that	that	IN
37894	856	5	the	the	DT
37894	856	6	highest	high	JJS
37894	856	7	counts	count	NNS
37894	856	8	of	of	IN
37894	856	9	birds	bird	NNS
37894	856	10	at	at	IN
37894	856	11	Beloit	Beloit	NNP
37894	856	12	on	on	IN
37894	856	13	May	May	NNP
37894	856	14	12	12	CD
37894	856	15	-	-	SYM
37894	856	16	13	13	CD
37894	856	17	were	be	VBD
37894	856	18	recorded	record	VBN
37894	856	19	when	when	WRB
37894	856	20	the	the	DT
37894	856	21	moon	moon	NN
37894	856	22	was	be	VBD
37894	856	23	at	at	IN
37894	856	24	an	an	DT
37894	856	25	altitude	altitude	NN
37894	856	26	of	of	IN
37894	856	27	only	only	RB
37894	856	28	8	8	CD
37894	856	29	°	°	NNS
37894	856	30	to	to	IN
37894	856	31	15	15	CD
37894	856	32	°	°	NNS
37894	856	33	and	and	CC
37894	856	34	,	,	,
37894	856	35	that	that	IN
37894	856	36	when	when	WRB
37894	856	37	appropriate	appropriate	JJ
37894	856	38	allowance	allowance	NN
37894	856	39	is	be	VBZ
37894	856	40	made	make	VBN
37894	856	41	for	for	IN
37894	856	42	the	the	DT
37894	856	43	immense	immense	JJ
37894	856	44	size	size	NN
37894	856	45	of	of	IN
37894	856	46	the	the	DT
37894	856	47	field	field	NN
37894	856	48	of	of	IN
37894	856	49	observation	observation	NN
37894	856	50	at	at	IN
37894	856	51	this	this	DT
37894	856	52	time	time	NN
37894	856	53	,	,	,
37894	856	54	the	the	DT
37894	856	55	partially	partially	RB
37894	856	56	corrected	correct	VBN
37894	856	57	flight	flight	NN
37894	856	58	density	density	NN
37894	856	59	for	for	IN
37894	856	60	the	the	DT
37894	856	61	period	period	NN
37894	856	62	is	be	VBZ
37894	856	63	not	not	RB
37894	856	64	materially	materially	RB
37894	856	65	greater	great	JJR
37894	856	66	than	than	IN
37894	856	67	at	at	IN
37894	856	68	some	some	DT
37894	856	69	other	other	JJ
37894	856	70	intervals	interval	NNS
37894	856	71	in	in	IN
37894	856	72	the	the	DT
37894	856	73	night	night	NN
37894	856	74	when	when	WRB
37894	856	75	the	the	DT
37894	856	76	telescope	telescope	NN
37894	856	77	was	be	VBD
37894	856	78	not	not	RB
37894	856	79	directed	direct	VBN
37894	856	80	over	over	IN
37894	856	81	the	the	DT
37894	856	82	course	course	NN
37894	856	83	of	of	IN
37894	856	84	the	the	DT
37894	856	85	Rock	Rock	NNP
37894	856	86	River	River	NNP
37894	856	87	.	.	.
37894	857	1	These	these	DT
37894	857	2	allowances	allowance	NNS
37894	857	3	do	do	VBP
37894	857	4	not	not	RB
37894	857	5	take	take	VB
37894	857	6	the	the	DT
37894	857	7	direction	direction	NN
37894	857	8	factor	factor	NN
37894	857	9	into	into	IN
37894	857	10	consideration	consideration	NN
37894	857	11	.	.	.
37894	858	1	Had	have	VBD
37894	858	2	the	the	DT
37894	858	3	birds	bird	NNS
37894	858	4	been	be	VBN
37894	858	5	flying	fly	VBG
37894	858	6	at	at	IN
37894	858	7	right	right	JJ
37894	858	8	angles	angle	NNS
37894	858	9	to	to	IN
37894	858	10	the	the	DT
37894	858	11	short	short	JJ
37894	858	12	axis	axi	NNS
37894	858	13	of	of	IN
37894	858	14	an	an	DT
37894	858	15	elliptical	elliptical	JJ
37894	858	16	section	section	NN
37894	858	17	of	of	IN
37894	858	18	the	the	DT
37894	858	19	cone	cone	NN
37894	858	20	throughout	throughout	IN
37894	858	21	the	the	DT
37894	858	22	night	night	NN
37894	858	23	,	,	,
37894	858	24	the	the	DT
37894	858	25	flight	flight	NN
37894	858	26	density	density	NN
37894	858	27	in	in	IN
37894	858	28	the	the	DT
37894	858	29	period	period	NN
37894	858	30	Winkenwerder	Winkenwerder	NNP
37894	858	31	considered	consider	VBD
37894	858	32	the	the	DT
37894	858	33	peak	peak	NN
37894	858	34	would	would	MD
37894	858	35	have	have	VB
37894	858	36	been	be	VBN
37894	858	37	about	about	RB
37894	858	38	twice	twice	RB
37894	858	39	as	as	RB
37894	858	40	high	high	JJ
37894	858	41	as	as	IN
37894	858	42	in	in	IN
37894	858	43	any	any	DT
37894	858	44	previous	previous	JJ
37894	858	45	interval	interval	NN
37894	858	46	.	.	.
37894	859	1	On	on	IN
37894	859	2	the	the	DT
37894	859	3	other	other	JJ
37894	859	4	hand	hand	NN
37894	859	5	,	,	,
37894	859	6	if	if	IN
37894	859	7	they	-PRON-	PRP
37894	859	8	had	have	VBD
37894	859	9	been	be	VBN
37894	859	10	flying	fly	VBG
37894	859	11	across	across	IN
37894	859	12	the	the	DT
37894	859	13	long	long	JJ
37894	859	14	axis	axis	NN
37894	859	15	at	at	IN
37894	859	16	all	all	DT
37894	859	17	times	time	NNS
37894	859	18	,	,	,
37894	859	19	the	the	DT
37894	859	20	supposed	suppose	VBN
37894	859	21	peak	peak	NN
37894	859	22	would	would	MD
37894	859	23	be	be	VB
37894	859	24	decidedly	decidedly	RB
37894	859	25	inferior	inferior	JJ
37894	859	26	to	to	IN
37894	859	27	the	the	DT
37894	859	28	flight	flight	NN
37894	859	29	density	density	NN
37894	859	30	at	at	IN
37894	859	31	10	10	CD
37894	859	32	to	to	TO
37894	859	33	11:00	11:00	CD
37894	859	34	P.	P.	NNP
37894	859	35	M.	M.	NNP
37894	859	36	,	,	,
37894	859	37	before	before	IN
37894	859	38	the	the	DT
37894	859	39	cone	cone	NN
37894	859	40	came	come	VBD
37894	859	41	near	near	IN
37894	859	42	the	the	DT
37894	859	43	river	river	NN
37894	859	44	.	.	.
37894	860	1	Admittedly	admittedly	RB
37894	860	2	,	,	,
37894	860	3	these	these	DT
37894	860	4	considerations	consideration	NNS
37894	860	5	contain	contain	VBP
37894	860	6	a	a	DT
37894	860	7	tremendous	tremendous	JJ
37894	860	8	element	element	NN
37894	860	9	of	of	IN
37894	860	10	uncertainty	uncertainty	NN
37894	860	11	.	.	.
37894	861	1	They	-PRON-	PRP
37894	861	2	are	be	VBP
37894	861	3	of	of	IN
37894	861	4	value	value	NN
37894	861	5	only	only	RB
37894	861	6	because	because	IN
37894	861	7	they	-PRON-	PRP
37894	861	8	expose	expose	VBP
37894	861	9	the	the	DT
37894	861	10	equal	equal	JJ
37894	861	11	uncertainty	uncertainty	NN
37894	861	12	in	in	IN
37894	861	13	Winkenwerder	Winkenwerder	NNP
37894	861	14	's	's	POS
37894	861	15	basic	basic	JJ
37894	861	16	evidence	evidence	NN
37894	861	17	.	.	.
37894	862	1	Since	since	IN
37894	862	2	the	the	DT
37894	862	3	coördinates	coördinate	NNS
37894	862	4	of	of	IN
37894	862	5	the	the	DT
37894	862	6	birds	bird	NNS
37894	862	7	'	'	POS
37894	862	8	apparent	apparent	JJ
37894	862	9	pathways	pathway	NNS
37894	862	10	at	at	IN
37894	862	11	Beloit	Beloit	NNP
37894	862	12	were	be	VBD
37894	862	13	given	give	VBN
37894	862	14	,	,	,
37894	862	15	I	-PRON-	PRP
37894	862	16	at	at	IN
37894	862	17	first	first	RB
37894	862	18	entertained	entertain	VBD
37894	862	19	the	the	DT
37894	862	20	hope	hope	NN
37894	862	21	of	of	IN
37894	862	22	computing	compute	VBG
37894	862	23	the	the	DT
37894	862	24	flight	flight	NN
37894	862	25	densities	density	NNS
37894	862	26	rigorously	rigorously	RB
37894	862	27	,	,	,
37894	862	28	by	by	IN
37894	862	29	the	the	DT
37894	862	30	method	method	NNP
37894	862	31	herein	herein	NNP
37894	862	32	employed	employ	VBD
37894	862	33	.	.	.
37894	863	1	Unfortunately	unfortunately	RB
37894	863	2	,	,	,
37894	863	3	Winkenwerder	Winkenwerder	NNP
37894	863	4	was	be	VBD
37894	863	5	apparently	apparently	RB
37894	863	6	dealing	deal	VBG
37894	863	7	with	with	IN
37894	863	8	telescopes	telescope	NNS
37894	863	9	that	that	WDT
37894	863	10	gave	give	VBD
37894	863	11	inverted	invert	VBN
37894	863	12	images	image	NNS
37894	863	13	,	,	,
37894	863	14	and	and	CC
37894	863	15	he	-PRON-	PRP
37894	863	16	used	use	VBD
37894	863	17	a	a	DT
37894	863	18	system	system	NN
37894	863	19	for	for	IN
37894	863	20	recording	record	VBG
37894	863	21	coördinates	coördinate	NNS
37894	863	22	so	so	RB
37894	863	23	ambiguously	ambiguously	RB
37894	863	24	described	describe	VBD
37894	863	25	that	that	IN
37894	863	26	I	-PRON-	PRP
37894	863	27	am	be	VBP
37894	863	28	not	not	RB
37894	863	29	certain	certain	JJ
37894	863	30	I	-PRON-	PRP
37894	863	31	have	have	VBP
37894	863	32	deciphered	decipher	VBN
37894	863	33	its	-PRON-	PRP$
37894	863	34	true	true	JJ
37894	863	35	meaning	meaning	NN
37894	863	36	.	.	.
37894	864	1	When	when	WRB
37894	864	2	,	,	,
37894	864	3	however	however	RB
37894	864	4	,	,	,
37894	864	5	his	-PRON-	PRP$
37894	864	6	birds	bird	NNS
37894	864	7	are	be	VBP
37894	864	8	plotted	plot	VBN
37894	864	9	according	accord	VBG
37894	864	10	to	to	IN
37894	864	11	the	the	DT
37894	864	12	instructions	instruction	NNS
37894	864	13	as	as	IN
37894	864	14	he	-PRON-	PRP
37894	864	15	stated	state	VBD
37894	864	16	them	-PRON-	PRP
37894	864	17	,	,	,
37894	864	18	the	the	DT
37894	864	19	prevailing	prevail	VBG
37894	864	20	direction	direction	NN
37894	864	21	of	of	IN
37894	864	22	flight	flight	NN
37894	864	23	indicated	indicate	VBN
37894	864	24	by	by	IN
37894	864	25	the	the	DT
37894	864	26	projection	projection	NN
37894	864	27	formula	formula	NN
37894	864	28	falls	fall	VBZ
37894	864	29	close	close	RB
37894	864	30	to	to	IN
37894	864	31	west	west	NN
37894	864	32	-	-	HYPH
37894	864	33	northwest	northwest	NN
37894	864	34	,	,	,
37894	864	35	not	not	RB
37894	864	36	along	along	IN
37894	864	37	the	the	DT
37894	864	38	course	course	NN
37894	864	39	of	of	IN
37894	864	40	the	the	DT
37894	864	41	Rock	Rock	NNP
37894	864	42	River	River	NNP
37894	864	43	,	,	,
37894	864	44	but	but	CC
37894	864	45	_	_	NNP
37894	864	46	at	at	IN
37894	864	47	direct	direct	JJ
37894	864	48	right	right	JJ
37894	864	49	angles	angle	NNS
37894	864	50	to	to	IN
37894	864	51	it	-PRON-	PRP
37894	864	52	_	_	NNP
37894	864	53	.	.	.
37894	865	1	[	[	-LRB-
37894	865	2	Illustration	illustration	NN
37894	865	3	:	:	:
37894	865	4	FIG	FIG	NNP
37894	865	5	.	.	.
37894	866	1	31	31	CD
37894	866	2	.	.	.
37894	867	1	Directional	directional	JJ
37894	867	2	components	component	NNS
37894	867	3	in	in	IN
37894	867	4	the	the	DT
37894	867	5	flight	flight	NN
37894	867	6	at	at	IN
37894	867	7	Tampico	Tampico	NNP
37894	867	8	on	on	IN
37894	867	9	three	three	CD
37894	867	10	nights	night	NNS
37894	867	11	in	in	IN
37894	867	12	1948	1948	CD
37894	867	13	.	.	.
37894	868	1	The	the	DT
37894	868	2	lengths	length	NNS
37894	868	3	of	of	IN
37894	868	4	the	the	DT
37894	868	5	sector	sector	NN
37894	868	6	vectors	vector	NNS
37894	868	7	are	be	VBP
37894	868	8	determined	determine	VBN
37894	868	9	by	by	IN
37894	868	10	their	-PRON-	PRP$
37894	868	11	respective	respective	JJ
37894	868	12	densities	density	NNS
37894	868	13	expressed	express	VBD
37894	868	14	as	as	IN
37894	868	15	a	a	DT
37894	868	16	percentage	percentage	NN
37894	868	17	of	of	IN
37894	868	18	the	the	DT
37894	868	19	station	station	NN
37894	868	20	density	density	NN
37894	868	21	for	for	IN
37894	868	22	that	that	DT
37894	868	23	night	night	NN
37894	868	24	;	;	:
37894	868	25	the	the	DT
37894	868	26	vector	vector	NN
37894	868	27	resultants	resultant	NNS
37894	868	28	are	be	VBP
37894	868	29	plotted	plot	VBN
37894	868	30	from	from	IN
37894	868	31	them	-PRON-	PRP
37894	868	32	by	by	IN
37894	868	33	standard	standard	JJ
37894	868	34	procedure	procedure	NN
37894	868	35	.	.	.
37894	869	1	Thus	thus	RB
37894	869	2	,	,	,
37894	869	3	the	the	DT
37894	869	4	nightly	nightly	JJ
37894	869	5	diagrams	diagram	NNS
37894	869	6	are	be	VBP
37894	869	7	not	not	RB
37894	869	8	on	on	IN
37894	869	9	the	the	DT
37894	869	10	same	same	JJ
37894	869	11	scale	scale	NN
37894	869	12	with	with	IN
37894	869	13	respect	respect	NN
37894	869	14	to	to	IN
37894	869	15	the	the	DT
37894	869	16	actual	actual	JJ
37894	869	17	number	number	NN
37894	869	18	of	of	IN
37894	869	19	birds	bird	NNS
37894	869	20	involved	involve	VBN
37894	869	21	.	.	.
37894	869	22	]	]	-RRB-
37894	870	1	[	[	-LRB-
37894	870	2	Illustration	illustration	NN
37894	870	3	:	:	:
37894	870	4	FIG	FIG	NNP
37894	870	5	.	.	.
37894	871	1	32	32	CD
37894	871	2	.	.	.
37894	872	1	Hourly	hourly	JJ
37894	872	2	station	station	NN
37894	872	3	density	density	NN
37894	872	4	curve	curve	NN
37894	872	5	at	at	IN
37894	872	6	Tampico	Tampico	NNP
37894	872	7	,	,	,
37894	872	8	Tamaulipas	Tamaulipas	NNP
37894	872	9	,	,	,
37894	872	10	on	on	IN
37894	872	11	the	the	DT
37894	872	12	night	night	NN
37894	872	13	of	of	IN
37894	872	14	April	April	NNP
37894	872	15	21	21	CD
37894	872	16	-	-	SYM
37894	872	17	22	22	CD
37894	872	18	,	,	,
37894	872	19	1948	1948	CD
37894	872	20	(	(	-LRB-
37894	872	21	CST	cst	NN
37894	872	22	)	)	-RRB-
37894	872	23	.	.	.
37894	872	24	]	]	-RRB-
37894	873	1	_	_	NNP
37894	873	2	Interpretation	Interpretation	NNP
37894	873	3	of	of	IN
37894	873	4	Recent	Recent	NNP
37894	873	5	Data	Data	NNPS
37894	873	6	_	_	NNP
37894	873	7	I	-PRON-	PRP
37894	873	8	am	be	VBP
37894	873	9	in	in	IN
37894	873	10	a	a	DT
37894	873	11	position	position	NN
37894	873	12	to	to	TO
37894	873	13	establish	establish	VB
37894	873	14	more	more	RBR
37894	873	15	exact	exact	JJ
37894	873	16	correlations	correlation	NNS
37894	873	17	between	between	IN
37894	873	18	flight	flight	NN
37894	873	19	density	density	NN
37894	873	20	and	and	CC
37894	873	21	terrain	terrain	NN
37894	873	22	features	feature	NNS
37894	873	23	in	in	IN
37894	873	24	the	the	DT
37894	873	25	case	case	NN
37894	873	26	of	of	IN
37894	873	27	current	current	JJ
37894	873	28	sets	set	NNS
37894	873	29	of	of	IN
37894	873	30	observations	observation	NNS
37894	873	31	.	.	.
37894	874	1	Some	some	DT
37894	874	2	of	of	IN
37894	874	3	these	these	DT
37894	874	4	data	datum	NNS
37894	874	5	seem	seem	VBP
37894	874	6	at	at	IN
37894	874	7	first	first	JJ
37894	874	8	glance	glance	NN
37894	874	9	to	to	TO
37894	874	10	fit	fit	VB
37894	874	11	the	the	DT
37894	874	12	idea	idea	NN
37894	874	13	of	of	IN
37894	874	14	narrow	narrow	JJ
37894	874	15	topographically	topographically	RB
37894	874	16	-	-	HYPH
37894	874	17	oriented	orient	VBN
37894	874	18	flight	flight	NN
37894	874	19	lanes	lane	NNS
37894	874	20	rather	rather	RB
37894	874	21	nicely	nicely	RB
37894	874	22	.	.	.
37894	875	1	At	at	IN
37894	875	2	Tampico	Tampico	NNP
37894	875	3	,	,	,
37894	875	4	where	where	WRB
37894	875	5	six	six	CD
37894	875	6	excellent	excellent	JJ
37894	875	7	sets	set	NNS
37894	875	8	of	of	IN
37894	875	9	observations	observation	NNS
37894	875	10	were	be	VBD
37894	875	11	made	make	VBN
37894	875	12	in	in	IN
37894	875	13	March	March	NNP
37894	875	14	and	and	CC
37894	875	15	April	April	NNP
37894	875	16	,	,	,
37894	875	17	1948	1948	CD
37894	875	18	,	,	,
37894	875	19	the	the	DT
37894	875	20	telescope	telescope	NN
37894	875	21	was	be	VBD
37894	875	22	set	set	VBN
37894	875	23	up	up	RP
37894	875	24	on	on	IN
37894	875	25	the	the	DT
37894	875	26	beach	beach	NN
37894	875	27	within	within	IN
37894	875	28	a	a	DT
37894	875	29	few	few	JJ
37894	875	30	yards	yard	NNS
37894	875	31	of	of	IN
37894	875	32	the	the	DT
37894	875	33	Gulf	Gulf	NNP
37894	875	34	of	of	IN
37894	875	35	Mexico	Mexico	NNP
37894	875	36	.	.	.
37894	876	1	As	as	IN
37894	876	2	can	can	MD
37894	876	3	be	be	VB
37894	876	4	seen	see	VBN
37894	876	5	from	from	IN
37894	876	6	Figure	figure	NN
37894	876	7	25	25	CD
37894	876	8	(	(	-LRB-
37894	876	9	_	_	NNP
37894	876	10	ante	ante	NNP
37894	876	11	_	_	NNP
37894	876	12	)	)	-RRB-
37894	876	13	,	,	,
37894	876	14	the	the	DT
37894	876	15	slant	slant	NN
37894	876	16	of	of	IN
37894	876	17	the	the	DT
37894	876	18	coastline	coastline	NN
37894	876	19	at	at	IN
37894	876	20	this	this	DT
37894	876	21	point	point	NN
37894	876	22	is	be	VBZ
37894	876	23	definitely	definitely	RB
37894	876	24	west	west	NN
37894	876	25	of	of	IN
37894	876	26	north	north	NN
37894	876	27	,	,	,
37894	876	28	as	as	IN
37894	876	29	is	be	VBZ
37894	876	30	also	also	RB
37894	876	31	the	the	DT
37894	876	32	general	general	JJ
37894	876	33	trend	trend	NN
37894	876	34	of	of	IN
37894	876	35	the	the	DT
37894	876	36	entire	entire	JJ
37894	876	37	coast	coast	NN
37894	876	38	from	from	IN
37894	876	39	southern	southern	JJ
37894	876	40	Veracruz	Veracruz	NNP
37894	876	41	to	to	IN
37894	876	42	southern	southern	JJ
37894	876	43	Tamaulipas	Tamaulipas	NNP
37894	876	44	(	(	-LRB-
37894	876	45	see	see	VB
37894	876	46	Figure	Figure	NNP
37894	876	47	34	34	CD
37894	876	48	,	,	,
37894	876	49	beyond	beyond	IN
37894	876	50	)	)	-RRB-
37894	876	51	.	.	.
37894	877	1	The	the	DT
37894	877	2	over	over	IN
37894	877	3	-	-	HYPH
37894	877	4	all	all	DT
37894	877	5	vector	vector	NN
37894	877	6	resultant	resultant	NN
37894	877	7	of	of	IN
37894	877	8	all	all	DT
37894	877	9	bird	bird	NN
37894	877	10	flights	flight	NNS
37894	877	11	at	at	IN
37894	877	12	this	this	DT
37894	877	13	station	station	NN
37894	877	14	was	be	VBD
37894	877	15	N	n	CD
37894	877	16	11	11	CD
37894	877	17	°	°	NNS
37894	877	18	W	w	NN
37894	877	19	,	,	,
37894	877	20	and	and	CC
37894	877	21	,	,	,
37894	877	22	as	as	IN
37894	877	23	will	will	MD
37894	877	24	be	be	VB
37894	877	25	seen	see	VBN
37894	877	26	from	from	IN
37894	877	27	Figure	figure	NN
37894	877	28	31	31	CD
37894	877	29	,	,	,
37894	877	30	none	none	NN
37894	877	31	of	of	IN
37894	877	32	the	the	DT
37894	877	33	nightly	nightly	JJ
37894	877	34	vector	vector	NN
37894	877	35	resultants	resultant	NNS
37894	877	36	in	in	IN
37894	877	37	April	April	NNP
37894	877	38	deviates	deviate	VBZ
37894	877	39	more	more	JJR
37894	877	40	than	than	IN
37894	877	41	one	one	CD
37894	877	42	degree	degree	NN
37894	877	43	from	from	IN
37894	877	44	this	this	DT
37894	877	45	average	average	NN
37894	877	46	.	.	.
37894	878	1	Thus	thus	RB
37894	878	2	the	the	DT
37894	878	3	prevailing	prevail	VBG
37894	878	4	direction	direction	NN
37894	878	5	of	of	IN
37894	878	6	flight	flight	NN
37894	878	7	,	,	,
37894	878	8	as	as	IN
37894	878	9	computed	compute	VBN
37894	878	10	,	,	,
37894	878	11	agrees	agree	VBZ
37894	878	12	with	with	IN
37894	878	13	the	the	DT
37894	878	14	trend	trend	NN
37894	878	15	of	of	IN
37894	878	16	the	the	DT
37894	878	17	coast	coast	NN
37894	878	18	at	at	IN
37894	878	19	the	the	DT
37894	878	20	precise	precise	JJ
37894	878	21	point	point	NN
37894	878	22	of	of	IN
37894	878	23	the	the	DT
37894	878	24	observations	observation	NNS
37894	878	25	,	,	,
37894	878	26	at	at	IN
37894	878	27	least	least	JJS
37894	878	28	to	to	IN
37894	878	29	the	the	DT
37894	878	30	extent	extent	NN
37894	878	31	that	that	IN
37894	878	32	both	both	DT
37894	878	33	are	be	VBP
37894	878	34	west	west	NN
37894	878	35	of	of	IN
37894	878	36	north	north	NN
37894	878	37	.	.	.
37894	879	1	To	to	TO
37894	879	2	be	be	VB
37894	879	3	sure	sure	JJ
37894	879	4	,	,	,
37894	879	5	the	the	DT
37894	879	6	individual	individual	JJ
37894	879	7	sector	sector	NN
37894	879	8	vectors	vector	NNS
37894	879	9	indicate	indicate	VBP
37894	879	10	that	that	IN
37894	879	11	not	not	RB
37894	879	12	all	all	DT
37894	879	13	birds	bird	NNS
37894	879	14	were	be	VBD
37894	879	15	following	follow	VBG
37894	879	16	this	this	DT
37894	879	17	course	course	NN
37894	879	18	;	;	:
37894	879	19	indeed	indeed	RB
37894	879	20	,	,	,
37894	879	21	some	some	DT
37894	879	22	appear	appear	VBP
37894	879	23	to	to	TO
37894	879	24	have	have	VB
37894	879	25	been	be	VBN
37894	879	26	flying	fly	VBG
37894	879	27	east	east	RB
37894	879	28	of	of	IN
37894	879	29	north	north	NNP
37894	879	30	,	,	,
37894	879	31	heading	head	VBG
37894	879	32	for	for	IN
37894	879	33	a	a	DT
37894	879	34	landfall	landfall	NN
37894	879	35	in	in	IN
37894	879	36	the	the	DT
37894	879	37	region	region	NN
37894	879	38	of	of	IN
37894	879	39	Brownsville	Brownsville	NNP
37894	879	40	,	,	,
37894	879	41	Texas	Texas	NNP
37894	879	42	,	,	,
37894	879	43	and	and	CC
37894	879	44	a	a	DT
37894	879	45	very	very	RB
37894	879	46	few	few	JJ
37894	879	47	to	to	TO
37894	879	48	have	have	VB
37894	879	49	been	be	VBN
37894	879	50	traveling	travel	VBG
37894	879	51	northeastward	northeastward	NN
37894	879	52	toward	toward	IN
37894	879	53	the	the	DT
37894	879	54	central	central	JJ
37894	879	55	Gulf	Gulf	NNP
37894	879	56	coast	coast	NN
37894	879	57	.	.	.
37894	880	1	But	but	CC
37894	880	2	it	-PRON-	PRP
37894	880	3	must	must	MD
37894	880	4	be	be	VB
37894	880	5	remembered	remember	VBN
37894	880	6	that	that	IN
37894	880	7	a	a	DT
37894	880	8	certain	certain	JJ
37894	880	9	amount	amount	NN
37894	880	10	of	of	IN
37894	880	11	computational	computational	JJ
37894	880	12	deviation	deviation	NN
37894	880	13	and	and	CC
37894	880	14	of	of	IN
37894	880	15	localized	localized	JJ
37894	880	16	zigzagging	zigzagging	NN
37894	880	17	in	in	IN
37894	880	18	flight	flight	NN
37894	880	19	must	must	MD
37894	880	20	be	be	VB
37894	880	21	anticipated	anticipate	VBN
37894	880	22	.	.	.
37894	881	1	Perhaps	perhaps	RB
37894	881	2	none	none	NN
37894	881	3	of	of	IN
37894	881	4	these	these	DT
37894	881	5	eastward	eastward	JJ
37894	881	6	vectors	vector	NNS
37894	881	7	represents	represent	VBZ
37894	881	8	an	an	DT
37894	881	9	actual	actual	JJ
37894	881	10	extended	extend	VBN
37894	881	11	flight	flight	NN
37894	881	12	path	path	NN
37894	881	13	.	.	.
37894	882	1	The	the	DT
37894	882	2	nightly	nightly	JJ
37894	882	3	vector	vector	NN
37894	882	4	resultants	resultant	NNS
37894	882	5	,	,	,
37894	882	6	on	on	IN
37894	882	7	the	the	DT
37894	882	8	other	other	JJ
37894	882	9	hand	hand	NN
37894	882	10	,	,	,
37894	882	11	are	be	VBP
37894	882	12	so	so	RB
37894	882	13	consistent	consistent	JJ
37894	882	14	that	that	IN
37894	882	15	they	-PRON-	PRP
37894	882	16	have	have	VBP
37894	882	17	the	the	DT
37894	882	18	appearance	appearance	NN
37894	882	19	of	of	IN
37894	882	20	remarkable	remarkable	JJ
37894	882	21	accuracy	accuracy	NN
37894	882	22	and	and	CC
37894	882	23	tempt	tempt	VB
37894	882	24	one	one	NN
37894	882	25	to	to	TO
37894	882	26	draw	draw	VB
37894	882	27	close	close	JJ
37894	882	28	correlations	correlation	NNS
37894	882	29	with	with	IN
37894	882	30	the	the	DT
37894	882	31	terrain	terrain	NN
37894	882	32	.	.	.
37894	883	1	When	when	WRB
37894	883	2	this	this	DT
37894	883	3	is	be	VBZ
37894	883	4	done	do	VBN
37894	883	5	,	,	,
37894	883	6	it	-PRON-	PRP
37894	883	7	is	be	VBZ
37894	883	8	found	find	VBN
37894	883	9	that	that	IN
37894	883	10	,	,	,
37894	883	11	while	while	IN
37894	883	12	the	the	DT
37894	883	13	prevailing	prevail	VBG
37894	883	14	flight	flight	NN
37894	883	15	direction	direction	NN
37894	883	16	is	be	VBZ
37894	883	17	11	11	CD
37894	883	18	°	°	NNS
37894	883	19	west	west	RB
37894	883	20	of	of	IN
37894	883	21	north	north	NN
37894	883	22	,	,	,
37894	883	23	the	the	DT
37894	883	24	exact	exact	JJ
37894	883	25	slant	slant	NN
37894	883	26	of	of	IN
37894	883	27	the	the	DT
37894	883	28	coastline	coastline	NN
37894	883	29	at	at	IN
37894	883	30	the	the	DT
37894	883	31	location	location	NN
37894	883	32	of	of	IN
37894	883	33	the	the	DT
37894	883	34	station	station	NN
37894	883	35	is	be	VBZ
37894	883	36	about	about	RB
37894	883	37	30	30	CD
37894	883	38	°	°	NNS
37894	883	39	west	west	RB
37894	883	40	of	of	IN
37894	883	41	north	north	NN
37894	883	42	,	,	,
37894	883	43	a	a	DT
37894	883	44	difference	difference	NN
37894	883	45	of	of	IN
37894	883	46	around	around	RB
37894	883	47	19	19	CD
37894	883	48	°	°	NNS
37894	883	49	.	.	.
37894	884	1	It	-PRON-	PRP
37894	884	2	appears	appear	VBZ
37894	884	3	,	,	,
37894	884	4	therefore	therefore	RB
37894	884	5	,	,	,
37894	884	6	that	that	IN
37894	884	7	the	the	DT
37894	884	8	birds	bird	NNS
37894	884	9	were	be	VBD
37894	884	10	not	not	RB
37894	884	11	following	follow	VBG
37894	884	12	the	the	DT
37894	884	13	shoreline	shoreline	NN
37894	884	14	precisely	precisely	RB
37894	884	15	but	but	CC
37894	884	16	cutting	cut	VBG
37894	884	17	a	a	DT
37894	884	18	chord	chord	NN
37894	884	19	about	about	RB
37894	884	20	ten	ten	CD
37894	884	21	miles	mile	NNS
37894	884	22	long	long	RB
37894	884	23	across	across	IN
37894	884	24	an	an	DT
37894	884	25	indentation	indentation	NN
37894	884	26	of	of	IN
37894	884	27	the	the	DT
37894	884	28	coast	coast	NN
37894	884	29	.	.	.
37894	885	1	If	if	IN
37894	885	2	it	-PRON-	PRP
37894	885	3	be	be	VB
37894	885	4	argued	argue	VBN
37894	885	5	that	that	IN
37894	885	6	the	the	DT
37894	885	7	method	method	NN
37894	885	8	of	of	IN
37894	885	9	calculation	calculation	NN
37894	885	10	is	be	VBZ
37894	885	11	not	not	RB
37894	885	12	accurate	accurate	JJ
37894	885	13	enough	enough	RB
37894	885	14	to	to	TO
37894	885	15	make	make	VB
37894	885	16	a	a	DT
37894	885	17	19	19	CD
37894	885	18	°	°	NNS
37894	885	19	difference	difference	NN
37894	885	20	significant	significant	JJ
37894	885	21	,	,	,
37894	885	22	and	and	CC
37894	885	23	that	that	IN
37894	885	24	most	most	JJS
37894	885	25	of	of	IN
37894	885	26	the	the	DT
37894	885	27	birds	bird	NNS
37894	885	28	might	may	MD
37894	885	29	have	have	VB
37894	885	30	been	be	VBN
37894	885	31	traveling	travel	VBG
37894	885	32	along	along	IN
37894	885	33	the	the	DT
37894	885	34	beach	beach	NN
37894	885	35	after	after	RB
37894	885	36	all	all	RB
37894	885	37	,	,	,
37894	885	38	it	-PRON-	PRP
37894	885	39	can	can	MD
37894	885	40	be	be	VB
37894	885	41	pointed	point	VBN
37894	885	42	out	out	RP
37894	885	43	with	with	IN
37894	885	44	equal	equal	JJ
37894	885	45	justification	justification	NN
37894	885	46	that	that	IN
37894	885	47	,	,	,
37894	885	48	if	if	IN
37894	885	49	this	this	DT
37894	885	50	be	be	VB
37894	885	51	so	so	RB
37894	885	52	,	,	,
37894	885	53	the	the	DT
37894	885	54	11	11	CD
37894	885	55	°	°	,
37894	885	56	divergence	divergence	NN
37894	885	57	from	from	IN
37894	885	58	north	north	NN
37894	885	59	does	do	VBZ
37894	885	60	not	not	RB
37894	885	61	mean	mean	VB
37894	885	62	anything	anything	NN
37894	885	63	either	either	RB
37894	885	64	and	and	CC
37894	885	65	that	that	IN
37894	885	66	perhaps	perhaps	RB
37894	885	67	the	the	DT
37894	885	68	majority	majority	NN
37894	885	69	of	of	IN
37894	885	70	the	the	DT
37894	885	71	birds	bird	NNS
37894	885	72	were	be	VBD
37894	885	73	going	go	VBG
37894	885	74	due	due	JJ
37894	885	75	north	north	RB
37894	885	76	.	.	.
37894	886	1	We	-PRON-	PRP
37894	886	2	are	be	VBP
37894	886	3	obliged	oblige	VBN
37894	886	4	to	to	TO
37894	886	5	conclude	conclude	VB
37894	886	6	either	either	CC
37894	886	7	that	that	IN
37894	886	8	the	the	DT
37894	886	9	main	main	JJ
37894	886	10	avenue	avenue	NN
37894	886	11	of	of	IN
37894	886	12	flight	flight	NN
37894	886	13	paralleled	parallel	VBD
37894	886	14	the	the	DT
37894	886	15	disposition	disposition	NN
37894	886	16	of	of	IN
37894	886	17	the	the	DT
37894	886	18	major	major	JJ
37894	886	19	topographical	topographical	JJ
37894	886	20	features	feature	NNS
37894	886	21	only	only	RB
37894	886	22	in	in	IN
37894	886	23	a	a	DT
37894	886	24	general	general	JJ
37894	886	25	way	way	NN
37894	886	26	or	or	CC
37894	886	27	that	that	IN
37894	886	28	the	the	DT
37894	886	29	angle	angle	NN
37894	886	30	between	between	IN
37894	886	31	the	the	DT
37894	886	32	line	line	NN
37894	886	33	of	of	IN
37894	886	34	the	the	DT
37894	886	35	coast	coast	NN
37894	886	36	and	and	CC
37894	886	37	true	true	JJ
37894	886	38	north	north	NN
37894	886	39	is	be	VBZ
37894	886	40	not	not	RB
37894	886	41	great	great	JJ
37894	886	42	enough	enough	RB
37894	886	43	to	to	TO
37894	886	44	warrant	warrant	VB
37894	886	45	any	any	DT
37894	886	46	inference	inference	NN
37894	886	47	at	at	RB
37894	886	48	all	all	RB
37894	886	49	.	.	.
37894	887	1	Consideration	consideration	NN
37894	887	2	of	of	IN
37894	887	3	the	the	DT
37894	887	4	Tampico	Tampico	NNP
37894	887	5	density	density	NN
37894	887	6	curves	curve	NNS
37894	887	7	leads	lead	VBZ
37894	887	8	to	to	IN
37894	887	9	similarly	similarly	RB
37894	887	10	ambiguous	ambiguous	JJ
37894	887	11	results	result	NNS
37894	887	12	.	.	.
37894	888	1	On	on	IN
37894	888	2	the	the	DT
37894	888	3	night	night	NN
37894	888	4	of	of	IN
37894	888	5	April	April	NNP
37894	888	6	21	21	CD
37894	888	7	-	-	SYM
37894	888	8	22	22	CD
37894	888	9	,	,	,
37894	888	10	as	as	IN
37894	888	11	is	be	VBZ
37894	888	12	evident	evident	JJ
37894	888	13	from	from	IN
37894	888	14	a	a	DT
37894	888	15	comparison	comparison	NN
37894	888	16	of	of	IN
37894	888	17	Figures	Figures	NNP
37894	888	18	25	25	CD
37894	888	19	and	and	CC
37894	888	20	32	32	CD
37894	888	21	,	,	,
37894	888	22	the	the	DT
37894	888	23	highest	high	JJS
37894	888	24	flight	flight	NN
37894	888	25	density	density	NN
37894	888	26	occurred	occur	VBD
37894	888	27	when	when	WRB
37894	888	28	the	the	DT
37894	888	29	projection	projection	NN
37894	888	30	of	of	IN
37894	888	31	the	the	DT
37894	888	32	cone	cone	NN
37894	888	33	on	on	IN
37894	888	34	the	the	DT
37894	888	35	terrain	terrain	NN
37894	888	36	was	be	VBD
37894	888	37	wholly	wholly	RB
37894	888	38	included	include	VBN
37894	888	39	within	within	IN
37894	888	40	the	the	DT
37894	888	41	beach	beach	NN
37894	888	42	.	.	.
37894	889	1	This	this	DT
37894	889	2	is	be	VBZ
37894	889	3	very	very	RB
37894	889	4	nearly	nearly	RB
37894	889	5	the	the	DT
37894	889	6	case	case	NN
37894	889	7	on	on	IN
37894	889	8	the	the	DT
37894	889	9	night	night	NN
37894	889	10	of	of	IN
37894	889	11	April	April	NNP
37894	889	12	23	23	CD
37894	889	13	-	-	SYM
37894	889	14	24	24	CD
37894	889	15	also	also	RB
37894	889	16	,	,	,
37894	889	17	the	the	DT
37894	889	18	positions	position	NNS
37894	889	19	of	of	IN
37894	889	20	the	the	DT
37894	889	21	cone	cone	NN
37894	889	22	during	during	IN
37894	889	23	the	the	DT
37894	889	24	peak	peak	NN
37894	889	25	period	period	NN
37894	889	26	of	of	IN
37894	889	27	density	density	NN
37894	889	28	being	be	VBG
37894	889	29	only	only	RB
37894	889	30	about	about	RB
37894	889	31	16	16	CD
37894	889	32	°	°	,
37894	889	33	apart	apart	RB
37894	889	34	.	.	.
37894	890	1	(	(	-LRB-
37894	890	2	On	on	IN
37894	890	3	the	the	DT
37894	890	4	intervening	intervene	VBG
37894	890	5	date	date	NN
37894	890	6	,	,	,
37894	890	7	clouds	cloud	NNS
37894	890	8	prevented	prevent	VBD
37894	890	9	continuous	continuous	JJ
37894	890	10	observation	observation	NN
37894	890	11	during	during	IN
37894	890	12	the	the	DT
37894	890	13	critical	critical	JJ
37894	890	14	part	part	NN
37894	890	15	of	of	IN
37894	890	16	the	the	DT
37894	890	17	night	night	NN
37894	890	18	.	.	.
37894	890	19	)	)	-RRB-
37894	891	1	These	these	DT
37894	891	2	correlations	correlation	NNS
37894	891	3	would	would	MD
37894	891	4	seem	seem	VB
37894	891	5	to	to	TO
37894	891	6	be	be	VB
37894	891	7	good	good	JJ
37894	891	8	evidence	evidence	NN
37894	891	9	that	that	IN
37894	891	10	most	most	JJS
37894	891	11	of	of	IN
37894	891	12	these	these	DT
37894	891	13	night	night	NN
37894	891	14	migrants	migrant	NNS
37894	891	15	were	be	VBD
37894	891	16	following	follow	VBG
37894	891	17	the	the	DT
37894	891	18	coastline	coastline	NN
37894	891	19	of	of	IN
37894	891	20	the	the	DT
37894	891	21	Gulf	Gulf	NNP
37894	891	22	of	of	IN
37894	891	23	Mexico	Mexico	NNP
37894	891	24	.	.	.
37894	892	1	However	however	RB
37894	892	2	,	,	,
37894	892	3	the	the	DT
37894	892	4	problem	problem	NN
37894	892	5	is	be	VBZ
37894	892	6	much	much	RB
37894	892	7	more	more	RBR
37894	892	8	complicated	complicated	JJ
37894	892	9	.	.	.
37894	893	1	The	the	DT
37894	893	2	estimated	estimate	VBN
37894	893	3	point	point	NN
37894	893	4	of	of	IN
37894	893	5	maximum	maximum	JJ
37894	893	6	flight	flight	NN
37894	893	7	density	density	NN
37894	893	8	fell	fall	VBD
37894	893	9	at	at	IN
37894	893	10	10:45	10:45	CD
37894	893	11	P.	P.	NNP
37894	893	12	M.	M.	NNP
37894	893	13	on	on	IN
37894	893	14	April	April	NNP
37894	893	15	21	21	CD
37894	893	16	-	-	SYM
37894	893	17	22	22	CD
37894	893	18	and	and	CC
37894	893	19	11:00	11:00	CD
37894	893	20	P.	P.	NNP
37894	893	21	M.	M.	NNP
37894	893	22	on	on	IN
37894	893	23	April	April	NNP
37894	893	24	23	23	CD
37894	893	25	-	-	SYM
37894	893	26	24	24	CD
37894	893	27	,	,	,
37894	893	28	both	both	DT
37894	893	29	less	less	JJR
37894	893	30	than	than	IN
37894	893	31	an	an	DT
37894	893	32	hour	hour	NN
37894	893	33	from	from	IN
37894	893	34	the	the	DT
37894	893	35	peak	peak	NN
37894	893	36	in	in	IN
37894	893	37	the	the	DT
37894	893	38	ideal	ideal	JJ
37894	893	39	time	time	NN
37894	893	40	curve	curve	NN
37894	893	41	(	(	-LRB-
37894	893	42	Figure	Figure	NNP
37894	893	43	26	26	CD
37894	893	44	,	,	,
37894	893	45	_	_	NNP
37894	893	46	ante	ante	NNP
37894	893	47	_	_	NNP
37894	893	48	)	)	-RRB-
37894	893	49	.	.	.
37894	894	1	We	-PRON-	PRP
37894	894	2	can	can	MD
37894	894	3	not	not	RB
37894	894	4	be	be	VB
37894	894	5	sure	sure	JJ
37894	894	6	,	,	,
37894	894	7	therefore	therefore	RB
37894	894	8	,	,	,
37894	894	9	that	that	IN
37894	894	10	the	the	DT
37894	894	11	increase	increase	NN
37894	894	12	in	in	IN
37894	894	13	density	density	NN
37894	894	14	coinciding	coincide	VBG
37894	894	15	with	with	IN
37894	894	16	the	the	DT
37894	894	17	position	position	NN
37894	894	18	of	of	IN
37894	894	19	the	the	DT
37894	894	20	moon	moon	NN
37894	894	21	over	over	IN
37894	894	22	the	the	DT
37894	894	23	beach	beach	NN
37894	894	24	is	be	VBZ
37894	894	25	not	not	RB
37894	894	26	an	an	DT
37894	894	27	increase	increase	NN
37894	894	28	which	which	WDT
37894	894	29	would	would	MD
37894	894	30	have	have	VB
37894	894	31	occurred	occur	VBN
37894	894	32	anyway	anyway	RB
37894	894	33	.	.	.
37894	895	1	Observations	observation	NNS
37894	895	2	conducted	conduct	VBD
37894	895	3	several	several	JJ
37894	895	4	nights	night	NNS
37894	895	5	before	before	IN
37894	895	6	or	or	CC
37894	895	7	after	after	IN
37894	895	8	the	the	DT
37894	895	9	second	second	JJ
37894	895	10	quarter	quarter	NN
37894	895	11	,	,	,
37894	895	12	when	when	WRB
37894	895	13	the	the	DT
37894	895	14	moon	moon	NN
37894	895	15	is	be	VBZ
37894	895	16	not	not	RB
37894	895	17	on	on	RB
37894	895	18	or	or	CC
37894	895	19	near	near	IN
37894	895	20	its	-PRON-	PRP$
37894	895	21	zenith	zenith	NN
37894	895	22	at	at	IN
37894	895	23	the	the	DT
37894	895	24	time	time	NN
37894	895	25	of	of	IN
37894	895	26	the	the	DT
37894	895	27	predictable	predictable	JJ
37894	895	28	peak	peak	NN
37894	895	29	in	in	IN
37894	895	30	the	the	DT
37894	895	31	density	density	NN
37894	895	32	curve	curve	NN
37894	895	33	,	,	,
37894	895	34	would	would	MD
37894	895	35	be	be	VB
37894	895	36	of	of	IN
37894	895	37	considerable	considerable	JJ
37894	895	38	value	value	NN
37894	895	39	in	in	IN
37894	895	40	the	the	DT
37894	895	41	study	study	NN
37894	895	42	of	of	IN
37894	895	43	this	this	DT
37894	895	44	particular	particular	JJ
37894	895	45	problem	problem	NN
37894	895	46	.	.	.
37894	896	1	The	the	DT
37894	896	2	situation	situation	NN
37894	896	3	at	at	IN
37894	896	4	Tampico	Tampico	NNP
37894	896	5	has	have	VBZ
37894	896	6	been	be	VBN
37894	896	7	dealt	deal	VBN
37894	896	8	with	with	IN
37894	896	9	at	at	IN
37894	896	10	length	length	NN
37894	896	11	because	because	IN
37894	896	12	,	,	,
37894	896	13	among	among	IN
37894	896	14	all	all	PDT
37894	896	15	the	the	DT
37894	896	16	locations	location	NNS
37894	896	17	for	for	IN
37894	896	18	which	which	WDT
37894	896	19	data	datum	NNS
37894	896	20	are	be	VBP
37894	896	21	available	available	JJ
37894	896	22	,	,	,
37894	896	23	it	-PRON-	PRP
37894	896	24	is	be	VBZ
37894	896	25	the	the	DT
37894	896	26	one	one	NN
37894	896	27	that	that	WDT
37894	896	28	most	most	RBS
37894	896	29	strongly	strongly	RB
37894	896	30	supports	support	VBZ
37894	896	31	the	the	DT
37894	896	32	topographical	topographical	JJ
37894	896	33	hypothesis	hypothesis	NN
37894	896	34	.	.	.
37894	897	1	In	in	IN
37894	897	2	none	none	NN
37894	897	3	of	of	IN
37894	897	4	the	the	DT
37894	897	5	other	other	JJ
37894	897	6	cases	case	NNS
37894	897	7	have	have	VBP
37894	897	8	I	-PRON-	PRP
37894	897	9	been	be	VBN
37894	897	10	able	able	JJ
37894	897	11	to	to	TO
37894	897	12	find	find	VB
37894	897	13	a	a	DT
37894	897	14	definite	definite	JJ
37894	897	15	relation	relation	NN
37894	897	16	between	between	IN
37894	897	17	the	the	DT
37894	897	18	direction	direction	NN
37894	897	19	of	of	IN
37894	897	20	migration	migration	NN
37894	897	21	and	and	CC
37894	897	22	the	the	DT
37894	897	23	features	feature	NNS
37894	897	24	of	of	IN
37894	897	25	the	the	DT
37894	897	26	terrain	terrain	NN
37894	897	27	.	.	.
37894	898	1	Studies	study	NNS
37894	898	2	of	of	IN
37894	898	3	data	datum	NNS
37894	898	4	from	from	IN
37894	898	5	some	some	DT
37894	898	6	of	of	IN
37894	898	7	these	these	DT
37894	898	8	stations	station	NNS
37894	898	9	disclose	disclose	VBP
37894	898	10	directional	directional	JJ
37894	898	11	patterns	pattern	NNS
37894	898	12	that	that	WDT
37894	898	13	vary	vary	VBP
37894	898	14	from	from	IN
37894	898	15	night	night	NN
37894	898	16	to	to	TO
37894	898	17	night	night	NN
37894	898	18	only	only	RB
37894	898	19	slightly	slightly	RB
37894	898	20	more	more	JJR
37894	898	21	than	than	IN
37894	898	22	does	do	VBZ
37894	898	23	the	the	DT
37894	898	24	flight	flight	NN
37894	898	25	at	at	IN
37894	898	26	Tampico	Tampico	NNP
37894	898	27	.	.	.
37894	899	1	In	in	IN
37894	899	2	three	three	CD
37894	899	3	nights	night	NNS
37894	899	4	of	of	IN
37894	899	5	observation	observation	NN
37894	899	6	at	at	IN
37894	899	7	Lawrence	Lawrence	NNP
37894	899	8	,	,	,
37894	899	9	Kansas	Kansas	NNP
37894	899	10	,	,	,
37894	899	11	marked	mark	VBN
37894	899	12	by	by	IN
37894	899	13	very	very	RB
37894	899	14	high	high	JJ
37894	899	15	densities	density	NNS
37894	899	16	,	,	,
37894	899	17	the	the	DT
37894	899	18	directional	directional	JJ
37894	899	19	trend	trend	NN
37894	899	20	was	be	VBD
37894	899	21	north	north	NN
37894	899	22	by	by	IN
37894	899	23	north	north	NN
37894	899	24	-	-	HYPH
37894	899	25	northeast	northeast	NN
37894	899	26	with	with	IN
37894	899	27	a	a	DT
37894	899	28	variation	variation	NN
37894	899	29	of	of	IN
37894	899	30	less	less	JJR
37894	899	31	than	than	IN
37894	899	32	8	8	CD
37894	899	33	°	°	NNS
37894	899	34	,	,	,
37894	899	35	yet	yet	CC
37894	899	36	Lawrence	Lawrence	NNP
37894	899	37	is	be	VBZ
37894	899	38	so	so	RB
37894	899	39	situated	situated	JJ
37894	899	40	that	that	IN
37894	899	41	there	there	EX
37894	899	42	seems	seem	VBZ
37894	899	43	to	to	TO
37894	899	44	be	be	VB
37894	899	45	no	no	DT
37894	899	46	feature	feature	NN
37894	899	47	of	of	IN
37894	899	48	the	the	DT
37894	899	49	landscape	landscape	NN
37894	899	50	locally	locally	RB
37894	899	51	or	or	CC
37894	899	52	in	in	IN
37894	899	53	the	the	DT
37894	899	54	whole	whole	NN
37894	899	55	of	of	IN
37894	899	56	eastern	eastern	JJ
37894	899	57	Kansas	Kansas	NNP
37894	899	58	or	or	CC
37894	899	59	of	of	IN
37894	899	60	western	western	JJ
37894	899	61	Missouri	Missouri	NNP
37894	899	62	that	that	WDT
37894	899	63	coincides	coincide	VBZ
37894	899	64	with	with	IN
37894	899	65	this	this	DT
37894	899	66	heading	heading	NN
37894	899	67	.	.	.
37894	900	1	At	at	IN
37894	900	2	Mansfield	Mansfield	NNP
37894	900	3	,	,	,
37894	900	4	Louisiana	Louisiana	NNP
37894	900	5	,	,	,
37894	900	6	in	in	IN
37894	900	7	twelve	twelve	CD
37894	900	8	nights	night	NNS
37894	900	9	of	of	IN
37894	900	10	observation	observation	NN
37894	900	11	,	,	,
37894	900	12	the	the	DT
37894	900	13	strong	strong	JJ
37894	900	14	east	east	NNP
37894	900	15	by	by	IN
37894	900	16	northeast	northeast	NNP
37894	900	17	trend	trend	NN
37894	900	18	varied	vary	VBD
37894	900	19	less	less	JJR
37894	900	20	than	than	IN
37894	900	21	15	15	CD
37894	900	22	°	°	NNS
37894	900	23	,	,	,
37894	900	24	but	but	CC
37894	900	25	again	again	RB
37894	900	26	there	there	EX
37894	900	27	appears	appear	VBZ
37894	900	28	to	to	TO
37894	900	29	be	be	VB
37894	900	30	no	no	DT
37894	900	31	correlation	correlation	NN
37894	900	32	over	over	IN
37894	900	33	a	a	DT
37894	900	34	wide	wide	JJ
37894	900	35	area	area	NN
37894	900	36	between	between	IN
37894	900	37	this	this	DT
37894	900	38	direction	direction	NN
37894	900	39	and	and	CC
37894	900	40	any	any	DT
37894	900	41	landmarks	landmark	NNS
37894	900	42	.	.	.
37894	901	1	And	and	CC
37894	901	2	,	,	,
37894	901	3	at	at	IN
37894	901	4	Progreso	Progreso	NNP
37894	901	5	,	,	,
37894	901	6	Yucatán	Yucatán	NNP
37894	901	7	,	,	,
37894	901	8	where	where	WRB
37894	901	9	the	the	DT
37894	901	10	vector	vector	NN
37894	901	11	resultants	resultant	NNS
37894	901	12	were	be	VBD
37894	901	13	21	21	CD
37894	901	14	°	°	NNS
37894	901	15	and	and	CC
37894	901	16	27	27	CD
37894	901	17	°	°	NNS
37894	901	18	on	on	IN
37894	901	19	successive	successive	JJ
37894	901	20	nights	night	NNS
37894	901	21	,	,	,
37894	901	22	most	most	JJS
37894	901	23	of	of	IN
37894	901	24	the	the	DT
37894	901	25	birds	bird	NNS
37894	901	26	seen	see	VBN
37894	901	27	had	have	VBD
37894	901	28	left	leave	VBN
37894	901	29	the	the	DT
37894	901	30	land	land	NN
37894	901	31	and	and	CC
37894	901	32	were	be	VBD
37894	901	33	beginning	begin	VBG
37894	901	34	their	-PRON-	PRP$
37894	901	35	flight	flight	NN
37894	901	36	northward	northward	RB
37894	901	37	over	over	IN
37894	901	38	the	the	DT
37894	901	39	trackless	trackless	JJ
37894	901	40	waters	water	NNS
37894	901	41	of	of	IN
37894	901	42	the	the	DT
37894	901	43	Gulf	Gulf	NNP
37894	901	44	of	of	IN
37894	901	45	Mexico	Mexico	NNP
37894	901	46	.	.	.
37894	902	1	Furthermore	furthermore	RB
37894	902	2	,	,	,
37894	902	3	as	as	IN
37894	902	4	I	-PRON-	PRP
37894	902	5	have	have	VBP
37894	902	6	elsewhere	elsewhere	RB
37894	902	7	pointed	point	VBN
37894	902	8	out	out	RP
37894	902	9	(	(	-LRB-
37894	902	10	1946	1946	CD
37894	902	11	:	:	:
37894	902	12	205	205	CD
37894	902	13	)	)	-RRB-
37894	902	14	,	,	,
37894	902	15	the	the	DT
37894	902	16	whole	whole	JJ
37894	902	17	northern	northern	JJ
37894	902	18	part	part	NN
37894	902	19	of	of	IN
37894	902	20	the	the	DT
37894	902	21	Yucatán	Yucatán	NNP
37894	902	22	Peninsula	Peninsula	NNP
37894	902	23	itself	-PRON-	PRP
37894	902	24	is	be	VBZ
37894	902	25	a	a	DT
37894	902	26	flat	flat	JJ
37894	902	27	terrain	terrain	NN
37894	902	28	,	,	,
37894	902	29	unmarked	unmarke	VBN
37894	902	30	by	by	IN
37894	902	31	rivers	river	NNS
37894	902	32	,	,	,
37894	902	33	mountains	mountain	NNS
37894	902	34	,	,	,
37894	902	35	or	or	CC
37894	902	36	any	any	DT
37894	902	37	other	other	JJ
37894	902	38	strong	strong	JJ
37894	902	39	physiographic	physiographic	NN
37894	902	40	features	feature	NNS
37894	902	41	that	that	WDT
37894	902	42	conceivably	conceivably	RB
37894	902	43	might	may	MD
37894	902	44	be	be	VB
37894	902	45	followed	follow	VBN
37894	902	46	by	by	IN
37894	902	47	birds	bird	NNS
37894	902	48	.	.	.
37894	903	1	[	[	-LRB-
37894	903	2	Illustration	illustration	NN
37894	903	3	:	:	:
37894	903	4	FIG	FIG	NNP
37894	903	5	.	.	.
37894	904	1	33	33	CD
37894	904	2	.	.	.
37894	905	1	The	the	DT
37894	905	2	nightly	nightly	JJ
37894	905	3	net	net	JJ
37894	905	4	trend	trend	NN
37894	905	5	of	of	IN
37894	905	6	migrations	migration	NNS
37894	905	7	at	at	IN
37894	905	8	three	three	CD
37894	905	9	stations	station	NNS
37894	905	10	in	in	IN
37894	905	11	1948	1948	CD
37894	905	12	.	.	.
37894	906	1	Each	each	DT
37894	906	2	arrow	arrow	NN
37894	906	3	is	be	VBZ
37894	906	4	the	the	DT
37894	906	5	vector	vector	NN
37894	906	6	resultant	resultant	NN
37894	906	7	for	for	IN
37894	906	8	a	a	DT
37894	906	9	particular	particular	JJ
37894	906	10	night	night	NN
37894	906	11	,	,	,
37894	906	12	its	-PRON-	PRP$
37894	906	13	length	length	NN
37894	906	14	expressing	express	VBG
37894	906	15	the	the	DT
37894	906	16	nightly	nightly	JJ
37894	906	17	density	density	NN
37894	906	18	as	as	IN
37894	906	19	a	a	DT
37894	906	20	percentage	percentage	NN
37894	906	21	of	of	IN
37894	906	22	the	the	DT
37894	906	23	total	total	JJ
37894	906	24	station	station	NN
37894	906	25	density	density	NN
37894	906	26	for	for	IN
37894	906	27	the	the	DT
37894	906	28	nights	night	NNS
37894	906	29	represented	represent	VBN
37894	906	30	.	.	.
37894	907	1	Thus	thus	RB
37894	907	2	,	,	,
37894	907	3	the	the	DT
37894	907	4	various	various	JJ
37894	907	5	station	station	NN
37894	907	6	diagrams	diagram	NNS
37894	907	7	are	be	VBP
37894	907	8	not	not	RB
37894	907	9	to	to	IN
37894	907	10	the	the	DT
37894	907	11	same	same	JJ
37894	907	12	scale	scale	NN
37894	907	13	.	.	.
37894	907	14	]	]	-RRB-
37894	908	1	In	in	IN
37894	908	2	Figure	figure	NN
37894	908	3	33	33	CD
37894	908	4	I	-PRON-	PRP
37894	908	5	have	have	VBP
37894	908	6	shown	show	VBN
37894	908	7	the	the	DT
37894	908	8	directional	directional	JJ
37894	908	9	patterns	pattern	NNS
37894	908	10	at	at	IN
37894	908	11	certain	certain	JJ
37894	908	12	stations	station	NNS
37894	908	13	where	where	WRB
37894	908	14	,	,	,
37894	908	15	unlike	unlike	IN
37894	908	16	the	the	DT
37894	908	17	cases	case	NNS
37894	908	18	noted	note	VBN
37894	908	19	above	above	RB
37894	908	20	,	,	,
37894	908	21	there	there	EX
37894	908	22	is	be	VBZ
37894	908	23	considerable	considerable	JJ
37894	908	24	change	change	NN
37894	908	25	on	on	IN
37894	908	26	successive	successive	JJ
37894	908	27	nights	night	NNS
37894	908	28	.	.	.
37894	909	1	Each	each	DT
37894	909	2	vector	vector	NN
37894	909	3	shown	show	VBN
37894	909	4	is	be	VBZ
37894	909	5	the	the	DT
37894	909	6	vector	vector	NN
37894	909	7	resultant	resultant	NN
37894	909	8	for	for	IN
37894	909	9	one	one	CD
37894	909	10	particular	particular	JJ
37894	909	11	night	night	NN
37894	909	12	.	.	.
37894	910	1	The	the	DT
37894	910	2	lengths	length	NNS
37894	910	3	of	of	IN
37894	910	4	the	the	DT
37894	910	5	vectors	vector	NNS
37894	910	6	have	have	VBP
37894	910	7	been	be	VBN
37894	910	8	determined	determine	VBN
37894	910	9	by	by	IN
37894	910	10	their	-PRON-	PRP$
37894	910	11	respective	respective	JJ
37894	910	12	percentages	percentage	NNS
37894	910	13	of	of	IN
37894	910	14	the	the	DT
37894	910	15	total	total	JJ
37894	910	16	computed	computed	JJ
37894	910	17	density	density	NN
37894	910	18	,	,	,
37894	910	19	or	or	CC
37894	910	20	total	total	JJ
37894	910	21	station	station	NN
37894	910	22	magnitude	magnitude	NN
37894	910	23	,	,	,
37894	910	24	for	for	IN
37894	910	25	all	all	PDT
37894	910	26	the	the	DT
37894	910	27	nights	night	NNS
37894	910	28	in	in	IN
37894	910	29	question	question	NN
37894	910	30	.	.	.
37894	911	1	In	in	IN
37894	911	2	other	other	JJ
37894	911	3	words	word	NNS
37894	911	4	,	,	,
37894	911	5	the	the	DT
37894	911	6	lengths	length	NNS
37894	911	7	of	of	IN
37894	911	8	the	the	DT
37894	911	9	individual	individual	JJ
37894	911	10	vectors	vector	NNS
37894	911	11	denote	denote	VBP
37894	911	12	the	the	DT
37894	911	13	percentile	percentile	NN
37894	911	14	rôle	rôle	VBZ
37894	911	15	that	that	IN
37894	911	16	each	each	DT
37894	911	17	night	night	NN
37894	911	18	played	play	VBD
37894	911	19	in	in	IN
37894	911	20	the	the	DT
37894	911	21	total	total	JJ
37894	911	22	density	density	NN
37894	911	23	.	.	.
37894	912	1	From	from	IN
37894	912	2	the	the	DT
37894	912	3	directional	directional	JJ
37894	912	4	spread	spread	NN
37894	912	5	at	at	IN
37894	912	6	these	these	DT
37894	912	7	stations	station	NNS
37894	912	8	it	-PRON-	PRP
37894	912	9	becomes	become	VBZ
37894	912	10	apparent	apparent	JJ
37894	912	11	that	that	IN
37894	912	12	if	if	IN
37894	912	13	most	most	JJS
37894	912	14	of	of	IN
37894	912	15	the	the	DT
37894	912	16	birds	bird	NNS
37894	912	17	were	be	VBD
37894	912	18	traveling	travel	VBG
37894	912	19	along	along	IN
37894	912	20	a	a	DT
37894	912	21	certain	certain	JJ
37894	912	22	topographic	topographic	JJ
37894	912	23	feature	feature	NN
37894	912	24	on	on	IN
37894	912	25	one	one	CD
37894	912	26	night	night	NN
37894	912	27	,	,	,
37894	912	28	they	-PRON-	PRP
37894	912	29	could	could	MD
37894	912	30	not	not	RB
37894	912	31	have	have	VB
37894	912	32	been	be	VBN
37894	912	33	traveling	travel	VBG
37894	912	34	along	along	IN
37894	912	35	the	the	DT
37894	912	36	same	same	JJ
37894	912	37	feature	feature	NN
37894	912	38	on	on	IN
37894	912	39	other	other	JJ
37894	912	40	nights	night	NNS
37894	912	41	.	.	.
37894	913	1	The	the	DT
37894	913	2	possibility	possibility	NN
37894	913	3	should	should	MD
37894	913	4	be	be	VB
37894	913	5	borne	bear	VBN
37894	913	6	in	in	IN
37894	913	7	mind	mind	NN
37894	913	8	,	,	,
37894	913	9	however	however	RB
37894	913	10	,	,	,
37894	913	11	that	that	IN
37894	913	12	there	there	EX
37894	913	13	may	may	MD
37894	913	14	be	be	VB
37894	913	15	more	more	JJR
37894	913	16	than	than	IN
37894	913	17	one	one	CD
37894	913	18	potential	potential	JJ
37894	913	19	topographic	topographic	JJ
37894	913	20	feature	feature	NN
37894	913	21	for	for	IN
37894	913	22	birds	bird	NNS
37894	913	23	to	to	TO
37894	913	24	follow	follow	VB
37894	913	25	at	at	IN
37894	913	26	some	some	DT
37894	913	27	stations	station	NNS
37894	913	28	.	.	.
37894	914	1	Moreover	moreover	RB
37894	914	2	,	,	,
37894	914	3	it	-PRON-	PRP
37894	914	4	is	be	VBZ
37894	914	5	conceivable	conceivable	JJ
37894	914	6	that	that	IN
37894	914	7	certain	certain	JJ
37894	914	8	species	specie	NNS
37894	914	9	might	may	MD
37894	914	10	follow	follow	VB
37894	914	11	one	one	CD
37894	914	12	feature	feature	NN
37894	914	13	that	that	WDT
37894	914	14	would	would	MD
37894	914	15	lead	lead	VB
37894	914	16	them	-PRON-	PRP
37894	914	17	in	in	IN
37894	914	18	the	the	DT
37894	914	19	direction	direction	NN
37894	914	20	of	of	IN
37894	914	21	their	-PRON-	PRP$
37894	914	22	ultimate	ultimate	JJ
37894	914	23	goal	goal	NN
37894	914	24	,	,	,
37894	914	25	whereas	whereas	IN
37894	914	26	other	other	JJ
37894	914	27	species	specie	NNS
37894	914	28	,	,	,
37894	914	29	wishing	wish	VBG
37894	914	30	to	to	TO
37894	914	31	go	go	VB
37894	914	32	in	in	IN
37894	914	33	an	an	DT
37894	914	34	entirely	entirely	RB
37894	914	35	different	different	JJ
37894	914	36	direction	direction	NN
37894	914	37	,	,	,
37894	914	38	might	may	MD
37894	914	39	follow	follow	VB
37894	914	40	another	another	DT
37894	914	41	feature	feature	NN
37894	914	42	that	that	WDT
37894	914	43	would	would	MD
37894	914	44	lead	lead	VB
37894	914	45	them	-PRON-	PRP
37894	914	46	toward	toward	IN
37894	914	47	their	-PRON-	PRP$
37894	914	48	respective	respective	JJ
37894	914	49	destination	destination	NN
37894	914	50	.	.	.
37894	915	1	It	-PRON-	PRP
37894	915	2	would	would	MD
37894	915	3	seem	seem	VB
37894	915	4	unlikely	unlikely	JJ
37894	915	5	,	,	,
37894	915	6	however	however	RB
37894	915	7	,	,	,
37894	915	8	that	that	IN
37894	915	9	the	the	DT
37894	915	10	species	specie	NNS
37894	915	11	composition	composition	NN
37894	915	12	of	of	IN
37894	915	13	the	the	DT
37894	915	14	nocturnal	nocturnal	JJ
37894	915	15	flights	flight	NNS
37894	915	16	would	would	MD
37894	915	17	change	change	VB
37894	915	18	materially	materially	RB
37894	915	19	from	from	IN
37894	915	20	night	night	NN
37894	915	21	to	to	IN
37894	915	22	night	night	NN
37894	915	23	,	,	,
37894	915	24	although	although	IN
37894	915	25	there	there	EX
37894	915	26	is	be	VBZ
37894	915	27	a	a	DT
37894	915	28	strong	strong	JJ
37894	915	29	likelihood	likelihood	NN
37894	915	30	that	that	IN
37894	915	31	it	-PRON-	PRP
37894	915	32	might	may	MD
37894	915	33	do	do	VB
37894	915	34	so	so	RB
37894	915	35	from	from	IN
37894	915	36	week	week	NN
37894	915	37	to	to	IN
37894	915	38	week	week	NN
37894	915	39	and	and	CC
37894	915	40	certainly	certainly	RB
37894	915	41	from	from	IN
37894	915	42	month	month	NN
37894	915	43	to	to	IN
37894	915	44	month	month	NN
37894	915	45	.	.	.
37894	916	1	By	by	IN
37894	916	2	amassing	amass	VBG
37894	916	3	such	such	JJ
37894	916	4	data	datum	NNS
37894	916	5	as	as	IN
37894	916	6	records	record	NNS
37894	916	7	of	of	IN
37894	916	8	flight	flight	NN
37894	916	9	direction	direction	NN
37894	916	10	along	along	IN
37894	916	11	the	the	DT
37894	916	12	same	same	JJ
37894	916	13	coast	coast	NN
37894	916	14	from	from	IN
37894	916	15	points	point	NNS
37894	916	16	where	where	WRB
37894	916	17	the	the	DT
37894	916	18	local	local	JJ
37894	916	19	slant	slant	NN
37894	916	20	of	of	IN
37894	916	21	the	the	DT
37894	916	22	shoreline	shoreline	NN
37894	916	23	is	be	VBZ
37894	916	24	materially	materially	RB
37894	916	25	different	different	JJ
37894	916	26	,	,	,
37894	916	27	and	and	CC
37894	916	28	comparisons	comparison	NNS
37894	916	29	of	of	IN
37894	916	30	the	the	DT
37894	916	31	volume	volume	NN
37894	916	32	of	of	IN
37894	916	33	migration	migration	NN
37894	916	34	at	at	IN
37894	916	35	night	night	NN
37894	916	36	along	along	IN
37894	916	37	specialized	specialized	JJ
37894	916	38	routes	route	NNS
37894	916	39	favored	favor	VBD
37894	916	40	during	during	IN
37894	916	41	the	the	DT
37894	916	42	day	day	NN
37894	916	43	with	with	IN
37894	916	44	the	the	DT
37894	916	45	flight	flight	NN
37894	916	46	densities	density	NNS
37894	916	47	at	at	IN
37894	916	48	progressive	progressive	JJ
37894	916	49	distances	distance	NNS
37894	916	50	from	from	IN
37894	916	51	the	the	DT
37894	916	52	critical	critical	JJ
37894	916	53	terrain	terrain	NN
37894	916	54	feature	feature	NN
37894	916	55	involved	involve	VBN
37894	916	56	,	,	,
37894	916	57	we	-PRON-	PRP
37894	916	58	shall	shall	MD
37894	916	59	eventually	eventually	RB
37894	916	60	be	be	VB
37894	916	61	able	able	JJ
37894	916	62	to	to	TO
37894	916	63	decide	decide	VB
37894	916	64	definitely	definitely	RB
37894	916	65	the	the	DT
37894	916	66	rôle	rôle	JJ
37894	916	67	topography	topography	NN
37894	916	68	plays	play	VBZ
37894	916	69	in	in	IN
37894	916	70	bird	bird	NN
37894	916	71	migration	migration	NN
37894	916	72	.	.	.
37894	917	1	We	-PRON-	PRP
37894	917	2	can	can	MD
37894	917	3	not	not	RB
37894	917	4	say	say	VB
37894	917	5	on	on	IN
37894	917	6	the	the	DT
37894	917	7	basis	basis	NN
37894	917	8	of	of	IN
37894	917	9	the	the	DT
37894	917	10	present	present	JJ
37894	917	11	ambiguous	ambiguous	JJ
37894	917	12	evidence	evidence	NN
37894	917	13	that	that	IN
37894	917	14	it	-PRON-	PRP
37894	917	15	is	be	VBZ
37894	917	16	not	not	RB
37894	917	17	a	a	DT
37894	917	18	factor	factor	NN
37894	917	19	in	in	IN
37894	917	20	determining	determine	VBG
37894	917	21	which	which	WDT
37894	917	22	way	way	NN
37894	917	23	birds	bird	NNS
37894	917	24	fly	fly	VBP
37894	917	25	,	,	,
37894	917	26	but	but	CC
37894	917	27	,	,	,
37894	917	28	if	if	IN
37894	917	29	I	-PRON-	PRP
37894	917	30	had	have	VBD
37894	917	31	to	to	TO
37894	917	32	hazard	hazard	VB
37894	917	33	a	a	DT
37894	917	34	guess	guess	NN
37894	917	35	one	one	CD
37894	917	36	way	way	NN
37894	917	37	or	or	CC
37894	917	38	the	the	DT
37894	917	39	other	other	JJ
37894	917	40	,	,	,
37894	917	41	I	-PRON-	PRP
37894	917	42	would	would	MD
37894	917	43	be	be	VB
37894	917	44	inclined	incline	VBN
37894	917	45	to	to	TO
37894	917	46	discount	discount	VB
37894	917	47	the	the	DT
37894	917	48	likelihood	likelihood	NN
37894	917	49	of	of	IN
37894	917	50	its	-PRON-	PRP$
37894	917	51	proving	prove	VBG
37894	917	52	a	a	DT
37894	917	53	major	major	JJ
37894	917	54	factor	factor	NN
37894	917	55	.	.	.
37894	918	1	D.	D.	NNP
37894	918	2	GEOGRAPHICAL	GEOGRAPHICAL	NNP
37894	918	3	FACTORS	FACTORS	NNP
37894	918	4	AND	and	CC
37894	918	5	THE	the	DT
37894	918	6	CONTINENTAL	continental	NN
37894	918	7	DENSITY	density	NN
37894	918	8	PATTERN	pattern	NN
37894	918	9	A	a	DT
37894	918	10	study	study	NN
37894	918	11	of	of	IN
37894	918	12	the	the	DT
37894	918	13	total	total	NN
37894	918	14	nightly	nightly	JJ
37894	918	15	or	or	CC
37894	918	16	seasonal	seasonal	JJ
37894	918	17	densities	density	NNS
37894	918	18	at	at	IN
37894	918	19	the	the	DT
37894	918	20	various	various	JJ
37894	918	21	stations	station	NNS
37894	918	22	brings	bring	VBZ
37894	918	23	forth	forth	RP
37894	918	24	some	some	DT
37894	918	25	extremely	extremely	RB
37894	918	26	interesting	interesting	JJ
37894	918	27	factors	factor	NNS
37894	918	28	,	,	,
37894	918	29	many	many	DT
37894	918	30	of	of	IN
37894	918	31	which	which	WDT
37894	918	32	,	,	,
37894	918	33	however	however	RB
37894	918	34	,	,	,
37894	918	35	can	can	MD
37894	918	36	not	not	RB
37894	918	37	be	be	VB
37894	918	38	fully	fully	RB
37894	918	39	interpreted	interpret	VBN
37894	918	40	at	at	IN
37894	918	41	this	this	DT
37894	918	42	time	time	NN
37894	918	43	.	.	.
37894	919	1	A	a	DT
37894	919	2	complete	complete	JJ
37894	919	3	picture	picture	NN
37894	919	4	of	of	IN
37894	919	5	the	the	DT
37894	919	6	magnitude	magnitude	NN
37894	919	7	of	of	IN
37894	919	8	migration	migration	NN
37894	919	9	at	at	IN
37894	919	10	a	a	DT
37894	919	11	given	give	VBN
37894	919	12	station	station	NN
37894	919	13	can	can	MD
37894	919	14	not	not	RB
37894	919	15	be	be	VB
37894	919	16	obtained	obtain	VBN
37894	919	17	from	from	IN
37894	919	18	the	the	DT
37894	919	19	number	number	NN
37894	919	20	of	of	IN
37894	919	21	birds	bird	NNS
37894	919	22	that	that	WDT
37894	919	23	pass	pass	VBP
37894	919	24	the	the	DT
37894	919	25	station	station	NN
37894	919	26	on	on	IN
37894	919	27	only	only	RB
37894	919	28	a	a	DT
37894	919	29	few	few	JJ
37894	919	30	nights	night	NNS
37894	919	31	in	in	IN
37894	919	32	one	one	CD
37894	919	33	spring	spring	NN
37894	919	34	.	.	.
37894	920	1	Many	many	JJ
37894	920	2	years	year	NNS
37894	920	3	of	of	IN
37894	920	4	study	study	NN
37894	920	5	may	may	MD
37894	920	6	be	be	VB
37894	920	7	required	require	VBN
37894	920	8	before	before	IN
37894	920	9	hard	hard	JJ
37894	920	10	and	and	CC
37894	920	11	fast	fast	JJ
37894	920	12	principles	principle	NNS
37894	920	13	are	be	VBP
37894	920	14	justifiable	justifiable	JJ
37894	920	15	.	.	.
37894	921	1	Nevertheless	nevertheless	RB
37894	921	2	,	,	,
37894	921	3	certain	certain	JJ
37894	921	4	salient	salient	NN
37894	921	5	features	feature	NNS
37894	921	6	stand	stand	VBP
37894	921	7	out	out	RP
37894	921	8	in	in	IN
37894	921	9	the	the	DT
37894	921	10	continental	continental	JJ
37894	921	11	density	density	NN
37894	921	12	pattern	pattern	NN
37894	921	13	in	in	IN
37894	921	14	the	the	DT
37894	921	15	spring	spring	NN
37894	921	16	of	of	IN
37894	921	17	1948	1948	CD
37894	921	18	.	.	.
37894	922	1	(	(	-LRB-
37894	922	2	The	the	DT
37894	922	3	general	general	JJ
37894	922	4	results	result	NNS
37894	922	5	are	be	VBP
37894	922	6	summarized	summarize	VBN
37894	922	7	in	in	IN
37894	922	8	Tables	Tables	NNP
37894	922	9	2	2	CD
37894	922	10	-	-	SYM
37894	922	11	5	5	CD
37894	922	12	;	;	,
37894	922	13	the	the	DT
37894	922	14	location	location	NN
37894	922	15	of	of	IN
37894	922	16	the	the	DT
37894	922	17	stations	station	NNS
37894	922	18	is	be	VBZ
37894	922	19	shown	show	VBN
37894	922	20	in	in	IN
37894	922	21	Figure	Figure	NNP
37894	922	22	34	34	CD
37894	922	23	.	.	.
37894	922	24	)	)	-RRB-
37894	923	1	These	these	DT
37894	923	2	features	feature	NNS
37894	923	3	will	will	MD
37894	923	4	be	be	VB
37894	923	5	discussed	discuss	VBN
37894	923	6	now	now	RB
37894	923	7	on	on	IN
37894	923	8	a	a	DT
37894	923	9	geographical	geographical	JJ
37894	923	10	basis	basis	NN
37894	923	11	.	.	.
37894	924	1	TABLE	TABLE	NNP
37894	924	2	2.--Extent	2.--extent	CD
37894	924	3	of	of	IN
37894	924	4	Observations	Observations	NNPS
37894	924	5	and	and	CC
37894	924	6	Seasonal	Seasonal	NNP
37894	924	7	Station	Station	NNP
37894	924	8	Densities	density	NNS
37894	924	9	at	at	IN
37894	924	10	Major	Major	NNP
37894	924	11	Stations	Stations	NNPS
37894	924	12	in	in	IN
37894	924	13	1948	1948	CD
37894	924	14	=	=	SYM
37894	924	15	=	=	SYM
37894	924	16	=	=	SYM
37894	924	17	=	=	SYM
37894	924	18	=	=	SYM
37894	924	19	=	=	SYM
37894	924	20	=	=	SYM
37894	924	21	=	=	SYM
37894	924	22	=	=	SYM
37894	924	23	=	=	SYM
37894	924	24	=	=	SYM
37894	924	25	=	=	SYM
37894	924	26	=	=	SYM
37894	924	27	=	=	SYM
37894	924	28	=	=	SYM
37894	924	29	=	=	SYM
37894	924	30	=	=	SYM
37894	924	31	=	=	SYM
37894	924	32	=	=	SYM
37894	924	33	=	=	SYM
37894	924	34	=	=	SYM
37894	924	35	=	=	SYM
37894	924	36	=	=	SYM
37894	924	37	=	=	SYM
37894	924	38	=	=	SYM
37894	924	39	=	=	SYM
37894	924	40	=	=	SYM
37894	924	41	=	=	SYM
37894	924	42	=	=	SYM
37894	924	43	=	=	SYM
37894	924	44	=	=	SYM
37894	924	45	=	=	SYM
37894	924	46	=	=	SYM
37894	924	47	=	=	SYM
37894	924	48	=	=	SYM
37894	924	49	=	=	SYM
37894	924	50	=	=	SYM
37894	924	51	=	=	SYM
37894	924	52	=	=	SYM
37894	924	53	=	=	SYM
37894	924	54	=	=	SYM
37894	924	55	=	=	SYM
37894	924	56	=	=	SYM
37894	924	57	=	=	SYM
37894	924	58	=	=	SYM
37894	924	59	=	=	SYM
37894	924	60	=	=	SYM
37894	924	61	=	=	SYM
37894	924	62	=	=	SYM
37894	924	63	=	=	SYM
37894	924	64	=	=	SYM
37894	924	65	=	=	SYM
37894	924	66	=	=	SYM
37894	924	67	=	=	SYM
37894	924	68	=	=	SYM
37894	924	69	=	=	SYM
37894	924	70	=	=	SYM
37894	924	71	=	=	SYM
37894	924	72	=	=	SYM
37894	924	73	=	=	SYM
37894	924	74	=	=	SYM
37894	924	75	=	=	SYM
37894	924	76	=	=	SYM
37894	924	77	=	=	SYM
37894	924	78	=	=	SYM
37894	924	79	=	=	SYM
37894	924	80	=	=	SYM
37894	924	81	=	=	SYM
37894	924	82	=	=	SYM
37894	924	83	=	=	SYM
37894	924	84	=	=	SYM
37894	924	85	=	=	SYM
37894	924	86	=	=	SYM
37894	924	87	=	=	SYM
37894	924	88	|Nights	|night	NNS
37894	924	89	of	of	IN
37894	924	90	observation|	observation|	CD
37894	924	91	Hours	hour	NNS
37894	924	92	of	of	IN
37894	924	93	observation|	observation|	NNP
37894	924	94	OBSERVATION	OBSERVATION	NNP
37894	924	95	STATION	STATION	NNP
37894	924	96	|---------------------+---------------------|Season	|---------------------+---------------------|Season	NNP
37894	924	97	|March|April|May|Total|March|April|May|Total|density	|march|april|may|total|march|april|may|total|density	NN
37894	924	98	---------------------+-----+-----+---+-----+-----+-----+---+-----+--------	---------------------+-----+-----+---+-----+-----+-----+---+-----+--------	VBZ
37894	924	99	CANADA	CANADA	NNP
37894	924	100	|	|	NNP
37894	924	101	|	|	NNP
37894	924	102	|	|	NNP
37894	924	103	|	|	CD
37894	924	104	|	|	CD
37894	924	105	|	|	CD
37894	924	106	|	|	CD
37894	924	107	|	|	CD
37894	924	108	|	|	NNS
37894	924	109	Pt	Pt	NNP
37894	924	110	.	.	.
37894	925	1	Pelee	Pelee	NNP
37894	925	2	|	|	NNP
37894	925	3	|	|	NNP
37894	925	4	|	|	CD
37894	925	5	1	1	CD
37894	925	6	|	|	CD
37894	925	7	1	1	CD
37894	925	8	|	|	CD
37894	925	9	|	|	CD
37894	925	10	|	|	CD
37894	925	11	6	6	CD
37894	925	12	|	|	CD
37894	925	13	6	6	CD
37894	925	14	|	|	CD
37894	925	15	2,500	2,500	CD
37894	925	16	|	|	CD
37894	925	17	|	|	CD
37894	925	18	|	|	CD
37894	925	19	|	|	CD
37894	925	20	|	|	CD
37894	925	21	|	|	CD
37894	925	22	|	|	CD
37894	925	23	|	|	CD
37894	925	24	|	|	NNP
37894	925	25	MEXICO	MEXICO	NNP
37894	925	26	|	|	NNP
37894	925	27	|	|	NNP
37894	925	28	|	|	CD
37894	925	29	|	|	CD
37894	925	30	|	|	CD
37894	925	31	|	|	CD
37894	925	32	|	|	CD
37894	925	33	|	|	CD
37894	925	34	|	|	NNP
37894	925	35	S.	S.	NNP
37894	925	36	L.	L.	NNP
37894	925	37	P.	P.	NNP
37894	925	38	:	:	:
37894	925	39	Ebano	Ebano	NNP
37894	925	40	|	|	NNP
37894	925	41	1	1	CD
37894	925	42	|	|	CD
37894	925	43	|	|	CD
37894	925	44	|	|	CD
37894	925	45	1	1	CD
37894	925	46	|	|	CD
37894	925	47	3	3	CD
37894	925	48	|	|	CD
37894	925	49	|	|	CD
37894	925	50	|	|	CD
37894	925	51	3	3	CD
37894	925	52	|	|	CD
37894	925	53	1,300	1,300	CD
37894	925	54	Tamps	tamp	NNS
37894	925	55	.	.	.
37894	926	1	:	:	:
37894	926	2	Tampico	Tampico	NNP
37894	926	3	|	|	CD
37894	926	4	3	3	CD
37894	926	5	|	|	CD
37894	926	6	3	3	CD
37894	926	7	|	|	CD
37894	926	8	|	|	CD
37894	926	9	6	6	CD
37894	926	10	|	|	CD
37894	926	11	20	20	CD
37894	926	12	|	|	CD
37894	926	13	20	20	CD
37894	926	14	|	|	CD
37894	926	15	|	|	CD
37894	926	16	40	40	CD
37894	926	17	|	|	CD
37894	926	18	140,300	140,300	CD
37894	926	19	Yuc	Yuc	NNP
37894	926	20	.	.	.
37894	927	1	:	:	:
37894	927	2	Progreso	progreso	NN
37894	927	3	|	|	CD
37894	927	4	|	|	CD
37894	927	5	3	3	CD
37894	927	6	|	|	CD
37894	927	7	|	|	CD
37894	927	8	3	3	CD
37894	927	9	|	|	CD
37894	927	10	|	|	CD
37894	927	11	18	18	CD
37894	927	12	|	|	CD
37894	927	13	|	|	CD
37894	927	14	18	18	CD
37894	927	15	|	|	CD
37894	927	16	60,500	60,500	CD
37894	927	17	|	|	CD
37894	927	18	|	|	CD
37894	927	19	|	|	CD
37894	927	20	|	|	CD
37894	927	21	|	|	CD
37894	927	22	|	|	CD
37894	927	23	|	|	CD
37894	927	24	|	|	CD
37894	927	25	|	|	CD
37894	927	26	UNITED	UNITED	NNP
37894	927	27	STATES	STATES	NNP
37894	927	28	|	|	NNP
37894	927	29	|	|	CD
37894	927	30	|	|	CD
37894	927	31	|	|	CD
37894	927	32	|	|	CD
37894	927	33	|	|	CD
37894	927	34	|	|	CD
37894	927	35	|	|	CD
37894	927	36	|	|	CD
37894	927	37	Fla.	Florida	NNP
37894	927	38	:	:	:
37894	927	39	Pensacola	Pensacola	NNP
37894	927	40	|	|	NNP
37894	927	41	|	|	NNP
37894	927	42	2	2	CD
37894	927	43	|	|	CD
37894	927	44	2	2	CD
37894	927	45	|	|	CD
37894	927	46	4	4	CD
37894	927	47	|	|	CD
37894	927	48	|	|	CD
37894	927	49	8	8	CD
37894	927	50	|	|	CD
37894	927	51	7	7	CD
37894	927	52	|	|	CD
37894	927	53	15	15	CD
37894	927	54	|	|	CD
37894	927	55	1,500	1,500	CD
37894	927	56	Winter	Winter	NNP
37894	927	57	Park	Park	NNP
37894	927	58	|	|	NNP
37894	927	59	|	|	NNP
37894	927	60	5	5	CD
37894	927	61	|	|	CD
37894	927	62	6	6	CD
37894	927	63	|	|	CD
37894	927	64	11	11	CD
37894	927	65	|	|	CD
37894	927	66	|	|	CD
37894	927	67	39	39	CD
37894	927	68	|38	|38	CD
37894	927	69	|	|	CD
37894	927	70	77	77	CD
37894	927	71	|	|	CD
37894	927	72	21,700	21,700	CD
37894	927	73	Ga.	Georgia	NNP
37894	927	74	:	:	:
37894	927	75	Athens	Athens	NNP
37894	927	76	|	|	CD
37894	927	77	|	|	CD
37894	927	78	2	2	CD
37894	927	79	|	|	CD
37894	927	80	|	|	CD
37894	927	81	2	2	CD
37894	927	82	|	|	CD
37894	927	83	|	|	CD
37894	927	84	10	10	CD
37894	927	85	|	|	CD
37894	927	86	|	|	CD
37894	927	87	10	10	CD
37894	927	88	|	|	CD
37894	927	89	4,000	4,000	CD
37894	927	90	Thomasville	Thomasville	NNP
37894	927	91	|	|	NNP
37894	927	92	|	|	NNP
37894	927	93	1	1	CD
37894	927	94	|	|	CD
37894	927	95	1	1	CD
37894	927	96	|	|	CD
37894	927	97	2	2	CD
37894	927	98	|	|	CD
37894	927	99	|	|	CD
37894	927	100	8	8	CD
37894	927	101	|	|	CD
37894	927	102	8	8	CD
37894	927	103	|	|	CD
37894	927	104	16	16	CD
37894	927	105	|	|	CD
37894	927	106	4,700	4,700	CD
37894	927	107	Iowa	Iowa	NNP
37894	927	108	:	:	:
37894	927	109	Ottumwa	Ottumwa	NNP
37894	927	110	|	|	NNP
37894	927	111	|	|	CD
37894	927	112	5	5	CD
37894	927	113	|	|	CD
37894	927	114	5	5	CD
37894	927	115	|	|	CD
37894	927	116	10	10	CD
37894	927	117	|	|	CD
37894	927	118	|	|	CD
37894	927	119	16	16	CD
37894	927	120	|28	|28	CD
37894	927	121	|	|	CD
37894	927	122	44	44	CD
37894	927	123	|	|	CD
37894	927	124	134,400	134,400	CD
37894	927	125	Kans.	Kansas	NNP
37894	928	1	:	:	:
37894	928	2	Lawrence	Lawrence	NNP
37894	928	3	|	|	NNP
37894	928	4	2	2	CD
37894	928	5	|	|	CD
37894	928	6	1	1	CD
37894	928	7	|	|	CD
37894	928	8	|	|	CD
37894	928	9	3	3	CD
37894	928	10	|	|	CD
37894	928	11	16	16	CD
37894	928	12	|	|	CD
37894	928	13	4	4	CD
37894	928	14	|	|	CD
37894	928	15	|	|	CD
37894	928	16	20	20	CD
37894	928	17	|	|	CD
37894	928	18	68,700	68,700	CD
37894	928	19	Ky.	Kentucky	NNP
37894	928	20	:	:	:
37894	928	21	Louisville	Louisville	NNP
37894	928	22	|	|	NNP
37894	928	23	|	|	NNP
37894	928	24	3	3	CD
37894	928	25	|	|	CD
37894	928	26	2	2	CD
37894	928	27	|	|	CD
37894	928	28	5	5	CD
37894	928	29	|	|	CD
37894	928	30	|	|	CD
37894	928	31	20	20	CD
37894	928	32	|14	|14	CD
37894	928	33	|	|	CD
37894	928	34	34	34	CD
37894	928	35	|	|	CD
37894	928	36	49,300	49,300	CD
37894	928	37	Murray	Murray	NNP
37894	928	38	|	|	NNP
37894	928	39	|	|	NNP
37894	928	40	2	2	CD
37894	928	41	|	|	CD
37894	928	42	|	|	CD
37894	928	43	2	2	CD
37894	928	44	|	|	CD
37894	928	45	|	|	CD
37894	928	46	13	13	CD
37894	928	47	|	|	CD
37894	928	48	|	|	CD
37894	928	49	13	13	CD
37894	928	50	|	|	CD
37894	928	51	26,200	26,200	CD
37894	928	52	La.	Louisiana	NNP
37894	929	1	:	:	:
37894	929	2	Baton	Baton	NNP
37894	929	3	Rouge	Rouge	NNP
37894	929	4	|	|	NNP
37894	929	5	|	|	NNP
37894	929	6	3	3	CD
37894	929	7	|	|	CD
37894	929	8	|	|	CD
37894	929	9	3	3	CD
37894	929	10	|	|	CD
37894	929	11	|	|	CD
37894	929	12	15	15	CD
37894	929	13	|	|	CD
37894	929	14	|	|	CD
37894	929	15	15	15	CD
37894	929	16	|	|	CD
37894	929	17	11,000	11,000	CD
37894	929	18	Lafayette	Lafayette	NNP
37894	929	19	|	|	NNP
37894	929	20	|	|	NNP
37894	929	21	1	1	CD
37894	929	22	|	|	CD
37894	929	23	|	|	CD
37894	929	24	1	1	CD
37894	929	25	|	|	CD
37894	929	26	|	|	CD
37894	929	27	5	5	CD
37894	929	28	|	|	CD
37894	929	29	|	|	CD
37894	929	30	5	5	CD
37894	929	31	|	|	CD
37894	929	32	2,800	2,800	CD
37894	929	33	Mansfield	Mansfield	NNP
37894	929	34	|	|	NNP
37894	929	35	1	1	CD
37894	929	36	|	|	CD
37894	929	37	5	5	CD
37894	929	38	|	|	CD
37894	929	39	4	4	CD
37894	929	40	|	|	CD
37894	929	41	10	10	CD
37894	929	42	|	|	CD
37894	929	43	2	2	CD
37894	929	44	|	|	CD
37894	929	45	16	16	CD
37894	929	46	|22	|22	CD
37894	929	47	|	|	CD
37894	929	48	40	40	CD
37894	929	49	|	|	CD
37894	929	50	22,400	22,400	CD
37894	929	51	New	New	NNP
37894	929	52	Orleans	Orleans	NNP
37894	929	53	|	|	NNP
37894	929	54	1	1	CD
37894	929	55	|	|	CD
37894	929	56	1	1	CD
37894	929	57	|	|	CD
37894	929	58	|	|	CD
37894	929	59	2	2	CD
37894	929	60	|	|	CD
37894	929	61	5	5	CD
37894	929	62	|	|	CD
37894	929	63	2	2	CD
37894	929	64	|	|	CD
37894	929	65	|	|	CD
37894	929	66	7	7	CD
37894	929	67	|	|	CD
37894	929	68	1,900	1,900	CD
37894	929	69	Oak	Oak	NNP
37894	929	70	Grove	Grove	NNP
37894	929	71	|	|	NNP
37894	929	72	|	|	NNP
37894	929	73	2	2	CD
37894	929	74	|	|	CD
37894	929	75	2	2	CD
37894	929	76	|	|	CD
37894	929	77	4	4	CD
37894	929	78	|	|	CD
37894	929	79	|	|	CD
37894	929	80	16	16	CD
37894	929	81	|15	|15	CD
37894	929	82	|	|	CD
37894	929	83	31	31	CD
37894	929	84	|	|	CD
37894	929	85	33,900	33,900	CD
37894	929	86	Mich.	Michigan	NNP
37894	929	87	:	:	:
37894	929	88	Albion	Albion	NNP
37894	929	89	|	|	NNP
37894	929	90	|	|	NNP
37894	929	91	1	1	CD
37894	929	92	|	|	CD
37894	929	93	|	|	CD
37894	929	94	1	1	CD
37894	929	95	|	|	CD
37894	929	96	|	|	CD
37894	929	97	3	3	CD
37894	929	98	|	|	CD
37894	929	99	|	|	CD
37894	929	100	3	3	CD
37894	929	101	|	|	CD
37894	929	102	1,100	1,100	CD
37894	929	103	Minn.	Minnesota	NNP
37894	929	104	:	:	:
37894	929	105	Hopkins	Hopkins	NNP
37894	929	106	|	|	NNP
37894	929	107	|	|	NNP
37894	929	108	|	|	CD
37894	929	109	1	1	CD
37894	929	110	|	|	CD
37894	929	111	1	1	CD
37894	929	112	|	|	CD
37894	929	113	|	|	CD
37894	929	114	|	|	CD
37894	929	115	4	4	CD
37894	929	116	|	|	CD
37894	929	117	4	4	CD
37894	929	118	|	|	CD
37894	929	119	2,000	2,000	CD
37894	929	120	Miss.	Mississippi	NNP
37894	930	1	:	:	:
37894	930	2	Rosedale	Rosedale	NNP
37894	930	3	|	|	NNP
37894	930	4	|	|	NNP
37894	930	5	1	1	CD
37894	930	6	|	|	CD
37894	930	7	1	1	CD
37894	930	8	|	|	CD
37894	930	9	2	2	CD
37894	930	10	|	|	CD
37894	930	11	|	|	CD
37894	930	12	6	6	CD
37894	930	13	|	|	CD
37894	930	14	8	8	CD
37894	930	15	|	|	CD
37894	930	16	14	14	CD
37894	930	17	|	|	CD
37894	930	18	12,600	12,600	CD
37894	930	19	Mo.	Mo.	NNP
37894	931	1	:	:	:
37894	931	2	Columbia	Columbia	NNP
37894	931	3	|	|	NNP
37894	931	4	|	|	NNP
37894	931	5	2	2	CD
37894	931	6	|	|	CD
37894	931	7	1	1	CD
37894	931	8	|	|	CD
37894	931	9	3	3	CD
37894	931	10	|	|	CD
37894	931	11	|	|	CD
37894	931	12	8	8	CD
37894	931	13	|	|	CD
37894	931	14	6	6	CD
37894	931	15	|	|	CD
37894	931	16	14	14	CD
37894	931	17	|	|	CD
37894	931	18	13,100	13,100	CD
37894	931	19	Liberty	Liberty	NNP
37894	931	20	|	|	NNP
37894	931	21	|	|	NNP
37894	931	22	1	1	CD
37894	931	23	|	|	CD
37894	931	24	1	1	CD
37894	931	25	|	|	CD
37894	931	26	2	2	CD
37894	931	27	|	|	CD
37894	931	28	|	|	CD
37894	931	29	7	7	CD
37894	931	30	|	|	CD
37894	931	31	7	7	CD
37894	931	32	|	|	CD
37894	931	33	14	14	CD
37894	931	34	|	|	CD
37894	931	35	4,800	4,800	CD
37894	931	36	Okla.	Oklahoma	NNP
37894	931	37	:	:	:
37894	931	38	Stillwater	Stillwater	NNP
37894	931	39	|	|	NNP
37894	931	40	1	1	CD
37894	931	41	|	|	CD
37894	931	42	2	2	CD
37894	931	43	|	|	CD
37894	931	44	1	1	CD
37894	931	45	|	|	CD
37894	931	46	4	4	CD
37894	931	47	|	|	CD
37894	931	48	5	5	CD
37894	931	49	|	|	CD
37894	931	50	11	11	CD
37894	931	51	|	|	CD
37894	931	52	3	3	CD
37894	931	53	|	|	CD
37894	931	54	19	19	CD
37894	931	55	|	|	CD
37894	931	56	8,400	8,400	CD
37894	931	57	S.	s.	NN
37894	932	1	Car	car	NN
37894	932	2	.	.	.
37894	933	1	:	:	:
37894	933	2	Charleston|	Charleston|	NNP
37894	933	3	1	1	CD
37894	933	4	|	|	CD
37894	933	5	1	1	CD
37894	933	6	|	|	CD
37894	933	7	1	1	CD
37894	933	8	|	|	CD
37894	933	9	3	3	CD
37894	933	10	|	|	CD
37894	933	11	5	5	CD
37894	933	12	|	|	CD
37894	933	13	8	8	CD
37894	933	14	|	|	CD
37894	933	15	9	9	CD
37894	933	16	|	|	CD
37894	933	17	22	22	CD
37894	933	18	|	|	CD
37894	933	19	3,000	3,000	CD
37894	933	20	Tenn.	Tennessee	NNP
37894	933	21	:	:	:
37894	933	22	Knoxville	Knoxville	NNP
37894	933	23	|	|	NNP
37894	933	24	|	|	NNP
37894	933	25	2	2	CD
37894	933	26	|	|	CD
37894	933	27	2	2	CD
37894	933	28	|	|	CD
37894	933	29	4	4	CD
37894	933	30	|	|	CD
37894	933	31	|	|	CD
37894	933	32	18	18	CD
37894	933	33	|14	|14	CD
37894	933	34	|	|	CD
37894	933	35	32	32	CD
37894	933	36	|	|	CD
37894	933	37	35,400	35,400	CD
37894	933	38	Memphis	Memphis	NNP
37894	933	39	|	|	NNP
37894	933	40	2	2	CD
37894	933	41	|	|	CD
37894	933	42	3	3	CD
37894	933	43	|	|	CD
37894	933	44	2	2	CD
37894	933	45	|	|	CD
37894	933	46	7	7	CD
37894	933	47	|	|	CD
37894	933	48	13	13	CD
37894	933	49	|	|	CD
37894	933	50	20	20	CD
37894	933	51	|12	|12	CD
37894	933	52	|	|	CD
37894	933	53	45	45	CD
37894	933	54	|	|	CD
37894	933	55	29,700	29,700	CD
37894	933	56	Tex	tex	NN
37894	933	57	.	.	.
37894	934	1	:	:	:
37894	934	2	College	College	NNP
37894	934	3	|	|	NNP
37894	934	4	|	|	NNP
37894	934	5	3	3	CD
37894	934	6	|	|	CD
37894	934	7	1	1	CD
37894	934	8	|	|	CD
37894	934	9	4	4	CD
37894	934	10	|	|	CD
37894	934	11	|	|	CD
37894	934	12	19	19	CD
37894	934	13	|	|	CD
37894	934	14	8	8	CD
37894	934	15	|	|	CD
37894	934	16	27	27	CD
37894	934	17	|	|	CD
37894	934	18	32,200	32,200	CD
37894	934	19	Station	Station	NNP
37894	934	20	Rockport	Rockport	NNP
37894	934	21	|	|	NNP
37894	934	22	|	|	NNP
37894	934	23	1	1	CD
37894	934	24	|	|	CD
37894	934	25	|	|	CD
37894	934	26	1	1	CD
37894	934	27	|	|	CD
37894	934	28	|	|	CD
37894	934	29	4	4	CD
37894	934	30	|	|	CD
37894	934	31	|	|	CD
37894	934	32	4	4	CD
37894	934	33	|	|	CD
37894	934	34	6,200	6,200	CD
37894	934	35	--------------------------------------------------------------------------	--------------------------------------------------------------------------	CD
37894	934	36	TABLE	TABLE	NNS
37894	934	37	3.--Average	3.--average	CD
37894	934	38	Hourly	Hourly	NNP
37894	934	39	Station	Station	NNP
37894	934	40	Densities	density	NNS
37894	934	41	in	in	IN
37894	934	42	1948	1948	CD
37894	934	43	=	=	SYM
37894	934	44	=	=	SYM
37894	934	45	=	=	SYM
37894	934	46	=	=	SYM
37894	934	47	=	=	SYM
37894	934	48	=	=	SYM
37894	934	49	=	=	SYM
37894	934	50	=	=	SYM
37894	934	51	=	=	SYM
37894	934	52	=	=	SYM
37894	934	53	=	=	SYM
37894	934	54	=	=	SYM
37894	934	55	=	=	SYM
37894	934	56	=	=	SYM
37894	934	57	=	=	SYM
37894	934	58	=	=	SYM
37894	934	59	=	=	SYM
37894	934	60	=	=	SYM
37894	934	61	=	=	SYM
37894	934	62	=	=	SYM
37894	934	63	=	=	SYM
37894	934	64	=	=	SYM
37894	934	65	=	=	SYM
37894	934	66	=	=	SYM
37894	934	67	=	=	SYM
37894	934	68	=	=	SYM
37894	934	69	=	=	SYM
37894	934	70	=	=	SYM
37894	934	71	=	=	SYM
37894	934	72	=	=	SYM
37894	934	73	=	=	SYM
37894	934	74	=	=	SYM
37894	934	75	=	=	SYM
37894	934	76	=	=	SYM
37894	934	77	=	=	SYM
37894	934	78	=	=	SYM
37894	934	79	=	=	SYM
37894	934	80	=	=	SYM
37894	934	81	=	=	SYM
37894	934	82	=	=	SYM
37894	934	83	=	=	SYM
37894	934	84	=	=	SYM
37894	934	85	=	=	SYM
37894	934	86	=	=	SYM
37894	934	87	=	=	SYM
37894	934	88	=	=	SYM
37894	934	89	=	=	SYM
37894	934	90	=	=	SYM
37894	934	91	=	=	SYM
37894	934	92	=	=	SYM
37894	934	93	=	=	SYM
37894	934	94	=	=	SYM
37894	934	95	=	=	SYM
37894	934	96	=	=	SYM
37894	934	97	=	=	NFP
37894	934	98	=	=	NFP
37894	934	99	OBSERVATION	OBSERVATION	NNP
37894	934	100	STATION	STATION	NNP
37894	934	101	|	|	NNP
37894	934	102	March	March	NNP
37894	934	103	|	|	NNP
37894	934	104	April	April	NNP
37894	934	105	|	|	NNP
37894	934	106	May	May	NNP
37894	934	107	|	|	HYPH
37894	934	108	Season	Season	NNP
37894	934	109	------------------------+-------+-------+-------+-------	------------------------+-------+-------+-------+-------	VB
37894	934	110	CANADA	CANADA	NNP
37894	934	111	|	|	NNP
37894	934	112	|	|	NNP
37894	934	113	|	|	NNP
37894	934	114	|	|	NNP
37894	934	115	Pt	Pt	NNP
37894	934	116	.	.	.
37894	935	1	Pelee	Pelee	NNP
37894	935	2	|	|	NNP
37894	935	3	|	|	NNP
37894	935	4	|	|	CD
37894	935	5	400	400	CD
37894	935	6	|	|	CD
37894	935	7	400	400	CD
37894	935	8	|	|	CD
37894	935	9	|	|	CD
37894	935	10	|	|	CD
37894	935	11	|	|	NNP
37894	935	12	MEXICO	MEXICO	NNP
37894	935	13	|	|	NNP
37894	935	14	|	|	NNP
37894	935	15	|	|	NNP
37894	935	16	|	|	NNP
37894	935	17	S.	S.	NNP
37894	935	18	L.	L.	NNP
37894	935	19	P.	P.	NNP
37894	935	20	:	:	:
37894	935	21	Ebano	Ebano	NNP
37894	935	22	|	|	NNP
37894	935	23	400	400	CD
37894	935	24	|	|	CD
37894	935	25	|	|	CD
37894	935	26	|	|	CD
37894	935	27	400	400	CD
37894	935	28	Tamps	tamp	NNS
37894	935	29	.	.	.
37894	936	1	:	:	:
37894	936	2	Tampico	Tampico	NNP
37894	936	3	|	|	CD
37894	936	4	700	700	CD
37894	936	5	|	|	CD
37894	936	6	6,300	6,300	CD
37894	936	7	|	|	CD
37894	936	8	|	|	CD
37894	936	9	3,500	3,500	CD
37894	936	10	Yuc	Yuc	NNP
37894	936	11	.	.	.
37894	937	1	:	:	:
37894	937	2	Progreso	progreso	NN
37894	937	3	|	|	CD
37894	937	4	|	|	CD
37894	937	5	2,800	2,800	CD
37894	937	6	|	|	CD
37894	937	7	|	|	CD
37894	937	8	2,800	2,800	CD
37894	937	9	|	|	CD
37894	937	10	|	|	CD
37894	937	11	|	|	CD
37894	937	12	|	|	CD
37894	937	13	UNITED	UNITED	NNP
37894	937	14	STATES	STATES	NNP
37894	937	15	|	|	NNP
37894	937	16	|	|	CD
37894	937	17	|	|	CD
37894	937	18	|	|	CD
37894	937	19	Fla.	Florida	NNP
37894	937	20	:	:	:
37894	937	21	Pensacola	Pensacola	NNP
37894	937	22	|	|	NNP
37894	937	23	|	|	NNP
37894	937	24	0+|	0+|	CD
37894	937	25	200	200	CD
37894	937	26	|	|	CD
37894	937	27	100	100	CD
37894	937	28	Winter	Winter	NNP
37894	937	29	Park	Park	NNP
37894	937	30	|	|	NNP
37894	937	31	|	|	NNP
37894	937	32	300	300	CD
37894	937	33	|	|	CD
37894	937	34	200	200	CD
37894	937	35	|	|	CD
37894	937	36	300	300	CD
37894	937	37	Ga.	Georgia	NNP
37894	937	38	:	:	:
37894	937	39	Athens	Athens	NNP
37894	937	40	|	|	CD
37894	937	41	|	|	CD
37894	937	42	400	400	CD
37894	937	43	|	|	CD
37894	937	44	|	|	CD
37894	937	45	400	400	CD
37894	937	46	Thomasville	Thomasville	NNP
37894	937	47	|	|	NNP
37894	937	48	|	|	NNP
37894	937	49	500	500	CD
37894	937	50	|	|	CD
37894	937	51	100	100	CD
37894	937	52	|	|	CD
37894	937	53	300	300	CD
37894	937	54	Iowa	Iowa	NNP
37894	937	55	:	:	:
37894	937	56	Ottumwa	Ottumwa	NNP
37894	937	57	|	|	NNP
37894	937	58	|	|	NNP
37894	937	59	1,700	1,700	CD
37894	937	60	|	|	CD
37894	937	61	3,800	3,800	CD
37894	937	62	|	|	CD
37894	937	63	3,100	3,100	CD
37894	937	64	Kans.	Kansas	NNP
37894	938	1	:	:	:
37894	938	2	Lawrence	Lawrence	NNP
37894	938	3	|	|	NNP
37894	938	4	4,000	4,000	CD
37894	938	5	|	|	CD
37894	938	6	1,400	1,400	CD
37894	938	7	|	|	CD
37894	938	8	|	|	CD
37894	938	9	3,400	3,400	CD
37894	938	10	Ky.	Kentucky	NNP
37894	938	11	:	:	:
37894	938	12	Louisville	Louisville	NNP
37894	938	13	|	|	NNP
37894	938	14	|	|	NNP
37894	938	15	2,000	2,000	CD
37894	938	16	|	|	CD
37894	938	17	700	700	CD
37894	938	18	|	|	CD
37894	938	19	1,500	1,500	CD
37894	938	20	Murray	Murray	NNP
37894	938	21	|	|	NNP
37894	938	22	|	|	NNP
37894	938	23	2,000	2,000	CD
37894	938	24	|	|	CD
37894	938	25	|	|	CD
37894	938	26	2,000	2,000	CD
37894	938	27	La.	Louisiana	NNP
37894	939	1	:	:	:
37894	939	2	Baton	Baton	NNP
37894	939	3	Rouge	Rouge	NNP
37894	939	4	|	|	NNP
37894	939	5	|	|	NNP
37894	939	6	700	700	CD
37894	939	7	|	|	CD
37894	939	8	|	|	CD
37894	939	9	700	700	CD
37894	939	10	Lafayette	Lafayette	NNP
37894	939	11	|	|	NNP
37894	939	12	|	|	CD
37894	939	13	600	600	CD
37894	939	14	|	|	CD
37894	939	15	|	|	CD
37894	939	16	600	600	CD
37894	939	17	Mansfield	Mansfield	NNP
37894	939	18	|	|	NNP
37894	939	19	0	0	CD
37894	939	20	|	|	NNP
37894	939	21	700	700	CD
37894	939	22	|	|	CD
37894	939	23	800	800	CD
37894	939	24	|	|	CD
37894	939	25	600	600	CD
37894	939	26	New	New	NNP
37894	939	27	Orleans	Orleans	NNP
37894	939	28	|	|	NNP
37894	939	29	60	60	CD
37894	939	30	|	|	CD
37894	939	31	800	800	CD
37894	939	32	|	|	CD
37894	939	33	|	|	CD
37894	939	34	300	300	CD
37894	939	35	Oak	Oak	NNP
37894	939	36	Grove	Grove	NNP
37894	939	37	|	|	NNP
37894	939	38	|	|	CD
37894	939	39	1,400	1,400	CD
37894	939	40	|	|	CD
37894	939	41	800	800	CD
37894	939	42	|	|	CD
37894	939	43	1,100	1,100	CD
37894	939	44	Mich.	Michigan	NNP
37894	939	45	:	:	:
37894	939	46	Albion	Albion	NNP
37894	939	47	|	|	NNP
37894	939	48	|	|	CD
37894	939	49	400	400	CD
37894	939	50	|	|	CD
37894	939	51	|	|	CD
37894	939	52	400	400	CD
37894	939	53	Minn.	Minnesota	NNP
37894	939	54	:	:	:
37894	939	55	Hopkins	Hopkins	NNP
37894	939	56	|	|	NNP
37894	939	57	|	|	NNP
37894	939	58	|	|	CD
37894	939	59	500	500	CD
37894	939	60	|	|	CD
37894	939	61	500	500	CD
37894	939	62	Miss.	Mississippi	NNP
37894	940	1	:	:	:
37894	940	2	Rosedale	Rosedale	NNP
37894	940	3	|	|	NNP
37894	940	4	|	|	CD
37894	940	5	1,100	1,100	CD
37894	940	6	|	|	CD
37894	940	7	700	700	CD
37894	940	8	|	|	CD
37894	940	9	900	900	CD
37894	940	10	Mo.	Mo.	NNP
37894	941	1	:	:	:
37894	941	2	Columbia	Columbia	NNP
37894	941	3	|	|	NNP
37894	941	4	|	|	NNP
37894	941	5	400	400	CD
37894	941	6	|	|	CD
37894	941	7	1,700	1,700	CD
37894	941	8	|	|	CD
37894	941	9	900	900	CD
37894	941	10	Liberty	Liberty	NNP
37894	941	11	|	|	NNP
37894	941	12	|	|	CD
37894	941	13	500	500	CD
37894	941	14	|	|	CD
37894	941	15	200	200	CD
37894	941	16	|	|	CD
37894	941	17	300	300	CD
37894	941	18	Okla.	Oklahoma	NNP
37894	941	19	:	:	:
37894	941	20	Stillwater	Stillwater	NNP
37894	941	21	|	|	NNP
37894	941	22	500	500	CD
37894	941	23	|	|	CD
37894	941	24	200	200	CD
37894	941	25	|	|	CD
37894	941	26	1,000	1,000	CD
37894	941	27	|	|	CD
37894	941	28	400	400	CD
37894	941	29	S.	s.	NN
37894	942	1	Car	car	NN
37894	942	2	.	.	.
37894	943	1	:	:	:
37894	943	2	Charleston	Charleston	NNP
37894	943	3	|	|	POS
37894	943	4	200	200	CD
37894	943	5	|	|	CD
37894	943	6	200	200	CD
37894	943	7	|	|	CD
37894	943	8	0+|	0+|	CD
37894	943	9	100	100	CD
37894	943	10	Tenn.	Tennessee	NNP
37894	943	11	:	:	:
37894	943	12	Knoxville	Knoxville	NNP
37894	943	13	|	|	NNP
37894	943	14	|	|	CD
37894	943	15	1,300	1,300	CD
37894	943	16	|	|	CD
37894	943	17	800	800	CD
37894	943	18	|	|	CD
37894	943	19	1,100	1,100	CD
37894	943	20	Memphis	Memphis	NNP
37894	943	21	|	|	NNP
37894	943	22	300	300	CD
37894	943	23	|	|	CD
37894	943	24	800	800	CD
37894	943	25	|	|	CD
37894	943	26	900	900	CD
37894	943	27	|	|	CD
37894	943	28	700	700	CD
37894	943	29	Tex	tex	NN
37894	943	30	.	.	.
37894	944	1	:	:	:
37894	944	2	College	College	NNP
37894	944	3	Station	Station	NNP
37894	944	4	|	|	NNP
37894	944	5	|	|	CD
37894	944	6	1,100	1,100	CD
37894	944	7	|	|	CD
37894	944	8	1,500	1,500	CD
37894	944	9	|	|	CD
37894	944	10	1,200	1,200	CD
37894	944	11	Rockport	Rockport	NNP
37894	944	12	|	|	NNP
37894	944	13	|	|	CD
37894	944	14	1,600	1,600	CD
37894	944	15	|	|	CD
37894	944	16	|	|	CD
37894	944	17	1,600	1,600	CD
37894	944	18	--------------------------------------------------------	--------------------------------------------------------	CD
37894	944	19	TABLE	TABLE	NNS
37894	944	20	4.--Maximum	4.--maximum	CD
37894	944	21	Hourly	Hourly	NNP
37894	944	22	Station	Station	NNP
37894	944	23	Densities	Densities	NNPS
37894	944	24	in	in	IN
37894	944	25	1948	1948	CD
37894	944	26	=	=	SYM
37894	944	27	=	=	SYM
37894	944	28	=	=	SYM
37894	944	29	=	=	SYM
37894	944	30	=	=	SYM
37894	944	31	=	=	SYM
37894	944	32	=	=	SYM
37894	944	33	=	=	SYM
37894	944	34	=	=	SYM
37894	944	35	=	=	SYM
37894	944	36	=	=	SYM
37894	944	37	=	=	SYM
37894	944	38	=	=	SYM
37894	944	39	=	=	SYM
37894	944	40	=	=	SYM
37894	944	41	=	=	SYM
37894	944	42	=	=	SYM
37894	944	43	=	=	SYM
37894	944	44	=	=	SYM
37894	944	45	=	=	SYM
37894	944	46	=	=	SYM
37894	944	47	=	=	SYM
37894	944	48	=	=	SYM
37894	944	49	=	=	SYM
37894	944	50	=	=	SYM
37894	944	51	=	=	SYM
37894	944	52	=	=	SYM
37894	944	53	=	=	SYM
37894	944	54	=	=	SYM
37894	944	55	=	=	SYM
37894	944	56	=	=	SYM
37894	944	57	=	=	SYM
37894	944	58	=	=	SYM
37894	944	59	=	=	SYM
37894	944	60	=	=	SYM
37894	944	61	=	=	SYM
37894	944	62	=	=	SYM
37894	944	63	=	=	SYM
37894	944	64	=	=	SYM
37894	944	65	=	=	SYM
37894	944	66	=	=	SYM
37894	944	67	=	=	SYM
37894	944	68	=	=	SYM
37894	944	69	=	=	SYM
37894	944	70	=	=	SYM
37894	944	71	=	=	SYM
37894	944	72	=	=	SYM
37894	944	73	=	=	SYM
37894	944	74	=	=	SYM
37894	944	75	=	=	SYM
37894	944	76	=	=	SYM
37894	944	77	=	=	SYM
37894	944	78	=	=	NFP
37894	944	79	=	=	NFP
37894	944	80	OBSERVATION	OBSERVATION	NNP
37894	944	81	STATION	STATION	NNP
37894	944	82	|	|	NNP
37894	944	83	March	March	NNP
37894	944	84	|	|	NNP
37894	944	85	April	April	NNP
37894	944	86	|	|	NNP
37894	944	87	May	May	NNP
37894	944	88	------------------------+---------+---------+---------	------------------------+---------+---------+---------	HYPH
37894	944	89	CANADA	CANADA	NNP
37894	944	90	|	|	NNP
37894	944	91	|	|	NNP
37894	944	92	|	|	NNP
37894	944	93	Pt	Pt	NNP
37894	944	94	.	.	.
37894	945	1	Pelee	Pelee	NNP
37894	945	2	|	|	NNP
37894	945	3	|	|	NNP
37894	945	4	|	|	CD
37894	945	5	1,400	1,400	CD
37894	945	6	|	|	CD
37894	945	7	|	|	CD
37894	945	8	|	|	NNP
37894	945	9	MEXICO	MEXICO	NNP
37894	945	10	|	|	NNP
37894	945	11	|	|	NNP
37894	945	12	|	|	NNP
37894	945	13	S.	S.	NNP
37894	945	14	L.	L.	NNP
37894	945	15	P.	P.	NNP
37894	945	16	:	:	:
37894	945	17	Ebano	Ebano	NNP
37894	945	18	|	|	NNP
37894	945	19	600	600	CD
37894	945	20	|	|	CD
37894	945	21	|	|	NNS
37894	945	22	Tamps	tamp	NNS
37894	945	23	.	.	.
37894	946	1	:	:	:
37894	946	2	Tampico	Tampico	NNP
37894	946	3	|	|	CD
37894	946	4	3,100	3,100	CD
37894	946	5	|	|	CD
37894	946	6	21,200	21,200	CD
37894	946	7	|	|	CD
37894	946	8	Yuc	Yuc	NNP
37894	946	9	.	.	.
37894	947	1	:	:	:
37894	947	2	Progreso	progreso	NN
37894	947	3	|	|	CD
37894	947	4	|	|	CD
37894	947	5	11,900	11,900	CD
37894	947	6	|	|	CD
37894	947	7	|	|	CD
37894	947	8	|	|	CD
37894	947	9	|	|	CD
37894	947	10	UNITED	UNITED	NNP
37894	947	11	STATES	STATES	NNP
37894	947	12	|	|	NNP
37894	947	13	|	|	NNP
37894	947	14	|	|	NNP
37894	947	15	Fla.	Florida	NNP
37894	947	16	:	:	:
37894	947	17	Pensacola	Pensacola	NNP
37894	947	18	|	|	NNP
37894	947	19	|	|	NNP
37894	947	20	100	100	CD
37894	947	21	|	|	CD
37894	947	22	700	700	CD
37894	947	23	Winter	Winter	NNP
37894	947	24	Park	Park	NNP
37894	947	25	|	|	NNP
37894	947	26	|	|	CD
37894	947	27	2,300	2,300	CD
37894	947	28	|	|	CD
37894	947	29	1,000	1,000	CD
37894	947	30	Ga.	Georgia	NNP
37894	947	31	:	:	:
37894	947	32	Athens	Athens	NNP
37894	947	33	|	|	CD
37894	947	34	|	|	CD
37894	947	35	900	900	CD
37894	947	36	|	|	CD
37894	947	37	Thomasville	Thomasville	NNP
37894	947	38	|	|	HYPH
37894	947	39	|	|	NNP
37894	947	40	1,500	1,500	CD
37894	947	41	|	|	CD
37894	947	42	200	200	CD
37894	947	43	Iowa	Iowa	NNP
37894	947	44	:	:	:
37894	947	45	Ottumwa	Ottumwa	NNP
37894	947	46	|	|	NNP
37894	947	47	|	|	CD
37894	947	48	3,800	3,800	CD
37894	947	49	|	|	CD
37894	947	50	12,500	12,500	CD
37894	947	51	Kans.	Kansas	NNPS
37894	948	1	:	:	:
37894	948	2	Lawrence	Lawrence	NNP
37894	948	3	|	|	NNP
37894	948	4	14,500	14,500	CD
37894	948	5	|	|	CD
37894	948	6	2,200	2,200	CD
37894	948	7	|	|	CD
37894	948	8	Ky.	Kentucky	NNP
37894	948	9	:	:	:
37894	948	10	Louisville	Louisville	NNP
37894	948	11	|	|	NNP
37894	948	12	|	|	NNP
37894	948	13	5,000	5,000	CD
37894	948	14	|	|	CD
37894	948	15	1,400	1,400	CD
37894	948	16	Murray	Murray	NNP
37894	948	17	|	|	NNP
37894	948	18	|	|	NNP
37894	948	19	3,700	3,700	CD
37894	948	20	|	|	NNS
37894	948	21	La.	Louisiana	NNP
37894	949	1	:	:	:
37894	949	2	Baton	Baton	NNP
37894	949	3	Rouge	Rouge	NNP
37894	949	4	|	|	NNP
37894	949	5	|	|	CD
37894	949	6	3,400	3,400	CD
37894	949	7	|	|	CD
37894	949	8	Lafayette	Lafayette	NNP
37894	949	9	|	|	NNP
37894	949	10	|	|	CD
37894	949	11	1,800	1,800	CD
37894	949	12	|	|	CD
37894	949	13	Mansfield	Mansfield	NNP
37894	949	14	|	|	NNP
37894	949	15	|	|	NNP
37894	949	16	2,100	2,100	CD
37894	949	17	|	|	CD
37894	949	18	1,600	1,600	CD
37894	949	19	New	New	NNP
37894	949	20	Orleans	Orleans	NNP
37894	949	21	|	|	NNP
37894	949	22	200	200	CD
37894	949	23	|	|	CD
37894	949	24	1,100	1,100	CD
37894	949	25	|	|	CD
37894	949	26	Oak	Oak	NNP
37894	949	27	Grove	Grove	NNP
37894	949	28	|	|	NNP
37894	949	29	|	|	NNP
37894	949	30	2,700	2,700	CD
37894	949	31	|	|	CD
37894	949	32	2,500	2,500	CD
37894	949	33	Mich.	Michigan	NNP
37894	949	34	:	:	:
37894	949	35	Albion	Albion	NNP
37894	949	36	|	|	NNP
37894	949	37	|	|	NNP
37894	949	38	700	700	CD
37894	949	39	|	|	NNP
37894	949	40	Minn.	Minnesota	NNP
37894	949	41	:	:	:
37894	949	42	Hopkins	Hopkins	NNP
37894	949	43	|	|	NNP
37894	949	44	|	|	NNP
37894	949	45	|	|	CD
37894	949	46	1,100	1,100	CD
37894	949	47	Miss.	Mississippi	NNP
37894	950	1	:	:	:
37894	950	2	Rosedale	Rosedale	NNP
37894	950	3	|	|	NNP
37894	950	4	|	|	CD
37894	950	5	2,200	2,200	CD
37894	950	6	|	|	CD
37894	950	7	1,400	1,400	CD
37894	950	8	Mo.	Mo.	NNP
37894	951	1	:	:	:
37894	951	2	Columbia	Columbia	NNP
37894	951	3	|	|	NNP
37894	951	4	|	|	NNP
37894	951	5	800	800	CD
37894	951	6	|	|	CD
37894	951	7	3,400	3,400	CD
37894	951	8	Liberty	Liberty	NNP
37894	951	9	|	|	NNP
37894	951	10	|	|	CD
37894	951	11	800	800	CD
37894	951	12	|	|	CD
37894	951	13	800	800	CD
37894	951	14	Okla.	Oklahoma	NNP
37894	951	15	:	:	:
37894	951	16	Stillwater	Stillwater	NNP
37894	951	17	|	|	NNP
37894	951	18	900	900	CD
37894	951	19	|	|	CD
37894	951	20	700	700	CD
37894	951	21	|	|	CD
37894	951	22	1,400	1,400	CD
37894	951	23	S.	s.	NN
37894	952	1	Car	car	NN
37894	952	2	.	.	.
37894	953	1	:	:	:
37894	953	2	Charleston	Charleston	NNP
37894	953	3	|	|	CD
37894	953	4	400	400	CD
37894	953	5	|	|	CD
37894	953	6	600	600	CD
37894	953	7	|	|	CD
37894	953	8	200	200	CD
37894	953	9	Tenn.	Tennessee	NNP
37894	953	10	:	:	:
37894	953	11	Knoxville	Knoxville	NNP
37894	953	12	|	|	NNP
37894	953	13	|	|	NNP
37894	953	14	5,800	5,800	CD
37894	953	15	|	|	CD
37894	953	16	1,900	1,900	CD
37894	953	17	Memphis	Memphis	NNP
37894	953	18	|	|	CD
37894	953	19	1,200	1,200	CD
37894	953	20	|	|	CD
37894	953	21	3,400	3,400	CD
37894	953	22	|	|	CD
37894	953	23	2,100	2,100	CD
37894	953	24	Tex	tex	NN
37894	953	25	.	.	.
37894	954	1	:	:	:
37894	954	2	College	College	NNP
37894	954	3	Station	Station	NNP
37894	954	4	|	|	NNP
37894	954	5	|	|	CD
37894	954	6	3,400	3,400	CD
37894	954	7	|	|	CD
37894	954	8	3,100	3,100	CD
37894	954	9	Rockport	Rockport	NNP
37894	954	10	|	|	NNP
37894	954	11	|	|	CD
37894	954	12	2,400	2,400	CD
37894	954	13	|	|	CD
37894	954	14	------------------------------------------------------	------------------------------------------------------	CD
37894	954	15	TABLE	table	NN
37894	954	16	5.--Maximum	5.--maximum	CD
37894	954	17	Nightly	nightly	RB
37894	954	18	Densities	densitie	VBZ
37894	954	19	at	at	IN
37894	954	20	Stations	station	NNS
37894	954	21	with	with	IN
37894	954	22	More	More	JJR
37894	954	23	Than	than	IN
37894	954	24	One	one	CD
37894	954	25	Night	Night	NNP
37894	954	26	of	of	IN
37894	954	27	Observation	Observation	NNP
37894	954	28	=	=	SYM
37894	954	29	=	=	SYM
37894	954	30	=	=	SYM
37894	954	31	=	=	SYM
37894	954	32	=	=	SYM
37894	954	33	=	=	SYM
37894	954	34	=	=	SYM
37894	954	35	=	=	SYM
37894	954	36	=	=	SYM
37894	954	37	=	=	SYM
37894	954	38	=	=	SYM
37894	954	39	=	=	SYM
37894	954	40	=	=	SYM
37894	954	41	=	=	SYM
37894	954	42	=	=	SYM
37894	954	43	=	=	SYM
37894	954	44	=	=	SYM
37894	954	45	=	=	SYM
37894	954	46	=	=	SYM
37894	954	47	=	=	SYM
37894	954	48	=	=	SYM
37894	954	49	=	=	SYM
37894	954	50	=	=	SYM
37894	954	51	=	=	SYM
37894	954	52	=	=	SYM
37894	954	53	=	=	SYM
37894	954	54	=	=	SYM
37894	954	55	=	=	SYM
37894	954	56	=	=	SYM
37894	954	57	=	=	SYM
37894	954	58	=	=	SYM
37894	954	59	=	=	SYM
37894	954	60	=	=	SYM
37894	954	61	=	=	SYM
37894	954	62	=	=	SYM
37894	954	63	=	=	SYM
37894	954	64	=	=	SYM
37894	954	65	=	=	SYM
37894	954	66	=	=	SYM
37894	954	67	=	=	SYM
37894	954	68	=	=	SYM
37894	954	69	=	=	SYM
37894	954	70	=	=	SYM
37894	954	71	=	=	SYM
37894	954	72	=	=	SYM
37894	954	73	=	=	SYM
37894	954	74	=	=	SYM
37894	954	75	=	=	SYM
37894	954	76	=	=	SYM
37894	954	77	=	=	SYM
37894	954	78	=	=	SYM
37894	954	79	=	=	SYM
37894	954	80	=	=	NFP
37894	954	81	=	=	NFP
37894	954	82	OBSERVATION	OBSERVATION	NNP
37894	954	83	STATION	STATION	NNP
37894	954	84	|	|	NNP
37894	954	85	March	March	NNP
37894	954	86	|	|	NNP
37894	954	87	April	April	NNP
37894	954	88	|	|	NNP
37894	954	89	May	May	NNP
37894	954	90	------------------------+---------+---------+---------	------------------------+---------+---------+---------	HYPH
37894	954	91	|	|	NNP
37894	954	92	|	|	NNP
37894	954	93	|	|	NNP
37894	954	94	MEXICO	MEXICO	NNP
37894	954	95	|	|	CD
37894	954	96	|	|	NNP
37894	954	97	|	|	NNS
37894	954	98	Tamps	tamp	NNS
37894	954	99	.	.	.
37894	955	1	:	:	:
37894	955	2	Tampico	Tampico	NNP
37894	955	3	|	|	CD
37894	955	4	5,500	5,500	CD
37894	955	5	|	|	CD
37894	955	6	63,600	63,600	CD
37894	955	7	|	|	NNS
37894	955	8	Yuc	Yuc	NNP
37894	955	9	.	.	.
37894	956	1	:	:	:
37894	956	2	Progreso	progreso	NN
37894	956	3	|	|	CD
37894	956	4	|	|	CD
37894	956	5	31,600	31,600	CD
37894	956	6	|	|	CD
37894	956	7	|	|	CD
37894	956	8	|	|	CD
37894	956	9	|	|	CD
37894	956	10	UNITED	UNITED	NNP
37894	956	11	STATES	STATES	NNP
37894	956	12	|	|	NNP
37894	956	13	|	|	NNP
37894	956	14	|	|	NNP
37894	956	15	Fla.	Florida	NNP
37894	956	16	:	:	:
37894	956	17	Winter	Winter	NNP
37894	956	18	Park	Park	NNP
37894	956	19	|	|	NNP
37894	956	20	|	|	NNP
37894	956	21	6,200	6,200	CD
37894	956	22	|	|	CD
37894	956	23	Ga.	Georgia	NNP
37894	956	24	:	:	:
37894	956	25	Athens	Athens	NNP
37894	956	26	|	|	CD
37894	956	27	|	|	CD
37894	956	28	2,600	2,600	CD
37894	956	29	|	|	CD
37894	956	30	Thomasville	Thomasville	NNP
37894	956	31	|	|	NNP
37894	956	32	|	|	NNP
37894	956	33	3,900	3,900	CD
37894	956	34	|	|	NNP
37894	956	35	Iowa	Iowa	NNP
37894	956	36	:	:	:
37894	956	37	Ottumwa	Ottumwa	NNP
37894	956	38	|	|	NNP
37894	956	39	|	|	CD
37894	956	40	15,300	15,300	CD
37894	956	41	|	|	CD
37894	956	42	54,600	54,600	CD
37894	956	43	Kans.	Kansas	NNPS
37894	957	1	:	:	:
37894	957	2	Lawrence	Lawrence	NNP
37894	957	3	|	|	NNP
37894	957	4	51,600	51,600	CD
37894	957	5	|	|	CD
37894	957	6	5,400	5,400	CD
37894	957	7	|	|	CD
37894	957	8	Ky.	Kentucky	NNP
37894	957	9	:	:	:
37894	957	10	Louisville	Louisville	NNP
37894	957	11	|	|	NNP
37894	957	12	|	|	NNP
37894	957	13	17,000	17,000	CD
37894	957	14	|	|	CD
37894	957	15	8,400	8,400	CD
37894	957	16	Murray	Murray	NNP
37894	957	17	|	|	NNP
37894	957	18	|	|	NNP
37894	957	19	16,400	16,400	CD
37894	957	20	|	|	CD
37894	957	21	La.	Louisiana	NNP
37894	958	1	:	:	:
37894	958	2	Baton	Baton	NNP
37894	958	3	Rouge	Rouge	NNP
37894	958	4	|	|	NNP
37894	958	5	|	|	CD
37894	958	6	6,200	6,200	CD
37894	958	7	|	|	NNP
37894	958	8	Mansfield	Mansfield	NNP
37894	958	9	|	|	NNP
37894	958	10	|	|	NNP
37894	958	11	4,900	4,900	CD
37894	958	12	|	|	CD
37894	958	13	5,200	5,200	CD
37894	958	14	Oak	Oak	NNP
37894	958	15	Grove	Grove	NNP
37894	958	16	|	|	NNP
37894	958	17	|	|	CD
37894	958	18	13,600	13,600	CD
37894	958	19	|	|	CD
37894	958	20	5,800	5,800	CD
37894	958	21	Miss.	Mississippi	NNP
37894	959	1	:	:	:
37894	959	2	Rosedale	Rosedale	NNP
37894	959	3	|	|	NNP
37894	959	4	|	|	NNP
37894	959	5	6,800	6,800	CD
37894	959	6	|	|	CD
37894	959	7	5,800	5,800	CD
37894	959	8	Mo.	Mo.	NNP
37894	960	1	:	:	:
37894	960	2	Columbia	Columbia	NNP
37894	960	3	|	|	NNP
37894	960	4	|	|	NNP
37894	960	5	1,400	1,400	CD
37894	960	6	|	|	CD
37894	960	7	10,300	10,300	CD
37894	960	8	Okla.	Oklahoma	NNP
37894	960	9	:	:	:
37894	960	10	Stillwater	Stillwater	NNP
37894	960	11	|	|	NNP
37894	960	12	2,700	2,700	CD
37894	960	13	|	|	CD
37894	960	14	1,900	1,900	CD
37894	960	15	|	|	CD
37894	960	16	3,000	3,000	CD
37894	960	17	Tenn.	Tennessee	NNP
37894	960	18	:	:	:
37894	960	19	Knoxville	Knoxville	NNP
37894	960	20	|	|	NNP
37894	960	21	|	|	CD
37894	960	22	15,200	15,200	CD
37894	960	23	|	|	CD
37894	960	24	9,000	9,000	CD
37894	960	25	Memphis	Memphis	NNP
37894	960	26	|	|	CD
37894	960	27	3,600	3,600	CD
37894	960	28	|	|	CD
37894	960	29	7,900	7,900	CD
37894	960	30	|	|	CD
37894	960	31	7,000	7,000	CD
37894	960	32	Tex	Tex	NNP
37894	960	33	.	.	.
37894	961	1	:	:	:
37894	961	2	College	College	NNP
37894	961	3	Station	Station	NNP
37894	961	4	|	|	NNP
37894	961	5	|	|	NNP
37894	961	6	6,200	6,200	CD
37894	961	7	|	|	CD
37894	961	8	13,200	13,200	CD
37894	961	9	------------------------------------------------------	------------------------------------------------------	NFP
37894	961	10	[	[	-LRB-
37894	961	11	Illustration	illustration	NN
37894	961	12	:	:	:
37894	961	13	FIG	FIG	NNP
37894	961	14	.	.	.
37894	962	1	34	34	CD
37894	962	2	.	.	.
37894	963	1	Stations	station	NNS
37894	963	2	at	at	IN
37894	963	3	which	which	WDT
37894	963	4	telescopic	telescopic	NN
37894	963	5	observations	observation	NNS
37894	963	6	were	be	VBD
37894	963	7	made	make	VBN
37894	963	8	in	in	IN
37894	963	9	1948	1948	CD
37894	963	10	.	.	.
37894	963	11	]	]	-RRB-
37894	964	1	_	_	NNP
37894	964	2	Gulf	Gulf	NNP
37894	964	3	Migration	Migration	NNP
37894	964	4	:	:	:
37894	964	5	A	a	DT
37894	964	6	Review	Review	NNP
37894	964	7	of	of	IN
37894	964	8	the	the	DT
37894	964	9	Problem	Problem	NNP
37894	964	10	_	_	NNP
37894	964	11	In	in	IN
37894	964	12	view	view	NN
37894	964	13	of	of	IN
37894	964	14	the	the	DT
37894	964	15	controversy	controversy	NN
37894	964	16	in	in	IN
37894	964	17	recent	recent	JJ
37894	964	18	years	year	NNS
37894	964	19	pertaining	pertain	VBG
37894	964	20	to	to	IN
37894	964	21	migration	migration	NN
37894	964	22	routes	route	NNS
37894	964	23	in	in	IN
37894	964	24	the	the	DT
37894	964	25	region	region	NN
37894	964	26	of	of	IN
37894	964	27	the	the	DT
37894	964	28	Gulf	Gulf	NNP
37894	964	29	of	of	IN
37894	964	30	Mexico	Mexico	NNP
37894	964	31	(	(	-LRB-
37894	964	32	Williams	Williams	NNP
37894	964	33	,	,	,
37894	964	34	1945	1945	CD
37894	964	35	and	and	CC
37894	964	36	1947	1947	CD
37894	964	37	;	;	:
37894	964	38	Lowery	Lowery	NNP
37894	964	39	,	,	,
37894	964	40	1945	1945	CD
37894	964	41	and	and	CC
37894	964	42	1946	1946	CD
37894	964	43	)	)	-RRB-
37894	964	44	,	,	,
37894	964	45	the	the	DT
37894	964	46	bearing	bearing	NN
37894	964	47	of	of	IN
37894	964	48	the	the	DT
37894	964	49	new	new	JJ
37894	964	50	data	datum	NNS
37894	964	51	on	on	IN
37894	964	52	the	the	DT
37894	964	53	problem	problem	NN
37894	964	54	is	be	VBZ
37894	964	55	of	of	IN
37894	964	56	especial	especial	JJ
37894	964	57	interest	interest	NN
37894	964	58	.	.	.
37894	965	1	While	while	IN
37894	965	2	recent	recent	JJ
37894	965	3	investigations	investigation	NNS
37894	965	4	have	have	VBP
37894	965	5	lent	lend	VBN
37894	965	6	further	further	JJ
37894	965	7	support	support	NN
37894	965	8	to	to	IN
37894	965	9	many	many	JJ
37894	965	10	of	of	IN
37894	965	11	the	the	DT
37894	965	12	ideas	idea	NNS
37894	965	13	expressed	express	VBN
37894	965	14	in	in	IN
37894	965	15	my	-PRON-	PRP$
37894	965	16	previous	previous	JJ
37894	965	17	papers	paper	NNS
37894	965	18	on	on	IN
37894	965	19	the	the	DT
37894	965	20	subject	subject	NN
37894	965	21	,	,	,
37894	965	22	they	-PRON-	PRP
37894	965	23	have	have	VBP
37894	965	24	suggested	suggest	VBN
37894	965	25	alternative	alternative	JJ
37894	965	26	explanations	explanation	NNS
37894	965	27	in	in	IN
37894	965	28	the	the	DT
37894	965	29	case	case	NN
37894	965	30	of	of	IN
37894	965	31	others	other	NNS
37894	965	32	.	.	.
37894	966	1	In	in	IN
37894	966	2	the	the	DT
37894	966	3	three	three	CD
37894	966	4	years	year	NNS
37894	966	5	that	that	WDT
37894	966	6	have	have	VBP
37894	966	7	elapsed	elapse	VBN
37894	966	8	since	since	IN
37894	966	9	my	-PRON-	PRP$
37894	966	10	last	last	JJ
37894	966	11	paper	paper	NN
37894	966	12	dealing	deal	VBG
37894	966	13	with	with	IN
37894	966	14	Gulf	Gulf	NNP
37894	966	15	migration	migration	NN
37894	966	16	,	,	,
37894	966	17	some	some	DT
37894	966	18	confusion	confusion	NN
37894	966	19	seems	seem	VBZ
37894	966	20	to	to	TO
37894	966	21	have	have	VB
37894	966	22	arisen	arise	VBN
37894	966	23	regarding	regard	VBG
37894	966	24	the	the	DT
37894	966	25	concepts	concept	NNS
37894	966	26	therein	therein	RB
37894	966	27	set	set	VBN
37894	966	28	forth	forth	RB
37894	966	29	.	.	.
37894	967	1	Therefore	therefore	RB
37894	967	2	,	,	,
37894	967	3	I	-PRON-	PRP
37894	967	4	shall	shall	MD
37894	967	5	briefly	briefly	RB
37894	967	6	re	re	VB
37894	967	7	-	-	VB
37894	967	8	state	state	VB
37894	967	9	them	-PRON-	PRP
37894	967	10	.	.	.
37894	968	1	It	-PRON-	PRP
37894	968	2	was	be	VBD
37894	968	3	my	-PRON-	PRP$
37894	968	4	opinion	opinion	NN
37894	968	5	that	that	IN
37894	968	6	evidence	evidence	NN
37894	968	7	then	then	RB
37894	968	8	available	available	JJ
37894	968	9	proved	prove	VBD
37894	968	10	conclusively	conclusively	RB
37894	968	11	that	that	IN
37894	968	12	birds	bird	NNS
37894	968	13	traverse	traverse	VBP
37894	968	14	the	the	DT
37894	968	15	Gulf	Gulf	NNP
37894	968	16	frequently	frequently	RB
37894	968	17	and	and	CC
37894	968	18	intentionally	intentionally	RB
37894	968	19	;	;	:
37894	968	20	that	that	IN
37894	968	21	the	the	DT
37894	968	22	same	same	JJ
37894	968	23	evidence	evidence	NN
37894	968	24	suggested	suggest	VBD
37894	968	25	trans	trans	NNP
37894	968	26	-	-	NNP
37894	968	27	Gulf	Gulf	NNP
37894	968	28	flights	flight	NNS
37894	968	29	of	of	IN
37894	968	30	sufficient	sufficient	JJ
37894	968	31	magnitude	magnitude	NN
37894	968	32	to	to	TO
37894	968	33	come	come	VB
37894	968	34	within	within	IN
37894	968	35	the	the	DT
37894	968	36	meaning	meaning	NN
37894	968	37	of	of	IN
37894	968	38	migration	migration	NN
37894	968	39	;	;	:
37894	968	40	that	that	IN
37894	968	41	great	great	JJ
37894	968	42	numbers	number	NNS
37894	968	43	of	of	IN
37894	968	44	birds	bird	NNS
37894	968	45	move	move	VBP
37894	968	46	overland	overland	RB
37894	968	47	around	around	IN
37894	968	48	the	the	DT
37894	968	49	eastern	eastern	JJ
37894	968	50	and	and	CC
37894	968	51	western	western	JJ
37894	968	52	edges	edge	NNS
37894	968	53	of	of	IN
37894	968	54	the	the	DT
37894	968	55	Gulf	Gulf	NNP
37894	968	56	;	;	:
37894	968	57	that	that	IN
37894	968	58	it	-PRON-	PRP
37894	968	59	was	be	VBD
37894	968	60	too	too	RB
37894	968	61	early	early	JJ
37894	968	62	to	to	TO
37894	968	63	say	say	VB
37894	968	64	whether	whether	IN
37894	968	65	the	the	DT
37894	968	66	coastal	coastal	JJ
37894	968	67	or	or	CC
37894	968	68	trans	trans	JJ
37894	968	69	-	-	NNP
37894	968	70	Gulf	Gulf	NNP
37894	968	71	route	route	NN
37894	968	72	was	be	VBD
37894	968	73	the	the	DT
37894	968	74	more	more	RBR
37894	968	75	important	important	JJ
37894	968	76	,	,	,
37894	968	77	but	but	CC
37894	968	78	that	that	IN
37894	968	79	enough	enough	JJ
37894	968	80	birds	bird	NNS
37894	968	81	cross	cross	VBP
37894	968	82	the	the	DT
37894	968	83	water	water	NN
37894	968	84	from	from	IN
37894	968	85	Yucatán	Yucatán	NNP
37894	968	86	to	to	TO
37894	968	87	account	account	VB
37894	968	88	for	for	IN
37894	968	89	transient	transient	JJ
37894	968	90	migration	migration	NN
37894	968	91	in	in	IN
37894	968	92	the	the	DT
37894	968	93	extreme	extreme	JJ
37894	968	94	lower	low	JJR
37894	968	95	Mississippi	Mississippi	NNP
37894	968	96	Valley	Valley	NNP
37894	968	97	;	;	:
37894	968	98	and	and	CC
37894	968	99	,	,	,
37894	968	100	that	that	IN
37894	968	101	,	,	,
37894	968	102	in	in	IN
37894	968	103	fair	fair	JJ
37894	968	104	weather	weather	NN
37894	968	105	,	,	,
37894	968	106	most	most	JJS
37894	968	107	trans	trans	JJ
37894	968	108	-	-	JJ
37894	968	109	Gulf	Gulf	NNP
37894	968	110	migrants	migrant	NNS
37894	968	111	continue	continue	VBP
37894	968	112	on	on	IN
37894	968	113	inland	inland	NN
37894	968	114	for	for	IN
37894	968	115	some	some	DT
37894	968	116	distance	distance	NN
37894	968	117	before	before	IN
37894	968	118	coming	come	VBG
37894	968	119	to	to	IN
37894	968	120	land	land	NN
37894	968	121	,	,	,
37894	968	122	creating	create	VBG
37894	968	123	an	an	DT
37894	968	124	area	area	NN
37894	968	125	of	of	IN
37894	968	126	"	"	``
37894	968	127	hiatus	hiatus	NN
37894	968	128	"	"	''
37894	968	129	that	that	WDT
37894	968	130	is	be	VBZ
37894	968	131	usually	usually	RB
37894	968	132	devoid	devoid	JJ
37894	968	133	of	of	IN
37894	968	134	transient	transient	JJ
37894	968	135	species	specie	NNS
37894	968	136	.	.	.
37894	969	1	I	-PRON-	PRP
37894	969	2	tried	try	VBD
37894	969	3	to	to	TO
37894	969	4	make	make	VB
37894	969	5	it	-PRON-	PRP
37894	969	6	emphatically	emphatically	RB
37894	969	7	clear	clear	JJ
37894	969	8	that	that	IN
37894	969	9	I	-PRON-	PRP
37894	969	10	realized	realize	VBD
37894	969	11	that	that	IN
37894	969	12	many	many	JJ
37894	969	13	birds	bird	NNS
37894	969	14	come	come	VBP
37894	969	15	into	into	IN
37894	969	16	Texas	Texas	NNP
37894	969	17	from	from	IN
37894	969	18	Mexico	Mexico	NNP
37894	969	19	overland	overland	NN
37894	969	20	,	,	,
37894	969	21	that	that	IN
37894	969	22	I	-PRON-	PRP
37894	969	23	did	do	VBD
37894	969	24	not	not	RB
37894	969	25	think	think	VB
37894	969	26	the	the	DT
37894	969	27	hordes	horde	NNS
37894	969	28	of	of	IN
37894	969	29	migrants	migrant	NNS
37894	969	30	normally	normally	RB
37894	969	31	seen	see	VBN
37894	969	32	on	on	IN
37894	969	33	the	the	DT
37894	969	34	Texas	Texas	NNP
37894	969	35	coast	coast	NN
37894	969	36	in	in	IN
37894	969	37	spring	spring	NN
37894	969	38	were	be	VBD
37894	969	39	by	by	IN
37894	969	40	any	any	DT
37894	969	41	means	mean	NNS
37894	969	42	all	all	DT
37894	969	43	trans	trans	JJ
37894	969	44	-	-	NNP
37894	969	45	Gulf	Gulf	NNP
37894	969	46	migrants	migrant	NNS
37894	969	47	.	.	.
37894	970	1	I	-PRON-	PRP
37894	970	2	stated	state	VBD
37894	970	3	(	(	-LRB-
37894	970	4	1946	1946	CD
37894	970	5	:	:	:
37894	970	6	206	206	CD
37894	970	7	)	)	-RRB-
37894	970	8	:	:	:
37894	970	9	"	"	``
37894	970	10	Proving	prove	VBG
37894	970	11	that	that	IN
37894	970	12	birds	bird	NNS
37894	970	13	migrate	migrate	VBP
37894	970	14	in	in	IN
37894	970	15	numbers	number	NNS
37894	970	16	across	across	IN
37894	970	17	the	the	DT
37894	970	18	Gulf	Gulf	NNP
37894	970	19	does	do	VBZ
37894	970	20	not	not	RB
37894	970	21	prove	prove	VB
37894	970	22	that	that	IN
37894	970	23	others	other	NNS
37894	970	24	do	do	VBP
37894	970	25	not	not	RB
37894	970	26	make	make	VB
37894	970	27	the	the	DT
37894	970	28	journey	journey	NN
37894	970	29	by	by	IN
37894	970	30	the	the	DT
37894	970	31	coastal	coastal	JJ
37894	970	32	routes	route	NNS
37894	970	33	.	.	.
37894	971	1	But	but	CC
37894	971	2	that	that	DT
37894	971	3	is	be	VBZ
37894	971	4	exactly	exactly	RB
37894	971	5	the	the	DT
37894	971	6	point	point	NN
37894	971	7	.	.	.
37894	972	1	No	no	DT
37894	972	2	one	one	NN
37894	972	3	has	have	VBZ
37894	972	4	ever	ever	RB
37894	972	5	pretended	pretend	VBN
37894	972	6	that	that	IN
37894	972	7	it	-PRON-	PRP
37894	972	8	does	do	VBZ
37894	972	9	.	.	.
37894	972	10	"	"	''
37894	973	1	Although	although	IN
37894	973	2	some	some	DT
37894	973	3	ornithologists	ornithologist	NNS
37894	973	4	seem	seem	VBP
37894	973	5	to	to	TO
37894	973	6	have	have	VB
37894	973	7	gained	gain	VBN
37894	973	8	the	the	DT
37894	973	9	impression	impression	NN
37894	973	10	that	that	IN
37894	973	11	I	-PRON-	PRP
37894	973	12	endorse	endorse	VBP
37894	973	13	only	only	RB
37894	973	14	the	the	DT
37894	973	15	trans	trans	NNP
37894	973	16	-	-	NNP
37894	973	17	Gulf	Gulf	NNP
37894	973	18	route	route	NN
37894	973	19	,	,	,
37894	973	20	this	this	DT
37894	973	21	is	be	VBZ
37894	973	22	far	far	RB
37894	973	23	from	from	IN
37894	973	24	the	the	DT
37894	973	25	truth	truth	NN
37894	973	26	.	.	.
37894	974	1	I	-PRON-	PRP
37894	974	2	have	have	VBP
37894	974	3	long	long	RB
37894	974	4	held	hold	VBN
37894	974	5	that	that	IN
37894	974	6	the	the	DT
37894	974	7	migrations	migration	NNS
37894	974	8	overland	overland	NN
37894	974	9	through	through	IN
37894	974	10	eastern	eastern	JJ
37894	974	11	Mexico	Mexico	NNP
37894	974	12	and	and	CC
37894	974	13	southern	southern	JJ
37894	974	14	Texas	Texas	NNP
37894	974	15	on	on	IN
37894	974	16	one	one	CD
37894	974	17	hand	hand	NN
37894	974	18	,	,	,
37894	974	19	and	and	CC
37894	974	20	the	the	DT
37894	974	21	over	over	IN
37894	974	22	-	-	HYPH
37894	974	23	water	water	NN
37894	974	24	flights	flight	NNS
37894	974	25	on	on	IN
37894	974	26	the	the	DT
37894	974	27	other	other	JJ
37894	974	28	,	,	,
37894	974	29	are	be	VBP
37894	974	30	each	each	DT
37894	974	31	part	part	NN
37894	974	32	of	of	IN
37894	974	33	the	the	DT
37894	974	34	broad	broad	JJ
37894	974	35	movement	movement	NN
37894	974	36	of	of	IN
37894	974	37	transients	transient	NNS
37894	974	38	northward	northward	RB
37894	974	39	into	into	IN
37894	974	40	the	the	DT
37894	974	41	United	United	NNP
37894	974	42	States	States	NNP
37894	974	43	.	.	.
37894	975	1	There	there	EX
37894	975	2	are	be	VBP
37894	975	3	three	three	CD
37894	975	4	avenues	avenue	NNS
37894	975	5	of	of	IN
37894	975	6	approach	approach	NN
37894	975	7	by	by	IN
37894	975	8	which	which	WDT
37894	975	9	birds	bird	NNS
37894	975	10	making	make	VBG
37894	975	11	up	up	RP
37894	975	12	the	the	DT
37894	975	13	tremendous	tremendous	JJ
37894	975	14	concentrations	concentration	NNS
37894	975	15	on	on	IN
37894	975	16	the	the	DT
37894	975	17	Texas	Texas	NNP
37894	975	18	coast	coast	NN
37894	975	19	may	may	MD
37894	975	20	have	have	VB
37894	975	21	reached	reach	VBN
37894	975	22	there	there	RB
37894	975	23	:	:	:
37894	975	24	by	by	IN
37894	975	25	a	a	DT
37894	975	26	continental	continental	JJ
37894	975	27	pathway	pathway	NN
37894	975	28	from	from	IN
37894	975	29	a	a	DT
37894	975	30	wintering	wintering	JJ
37894	975	31	ground	ground	NN
37894	975	32	in	in	IN
37894	975	33	eastern	eastern	JJ
37894	975	34	and	and	CC
37894	975	35	southern	southern	JJ
37894	975	36	Mexico	Mexico	NNP
37894	975	37	;	;	:
37894	975	38	by	by	IN
37894	975	39	the	the	DT
37894	975	40	over	over	IN
37894	975	41	-	-	HYPH
37894	975	42	water	water	NN
37894	975	43	route	route	NN
37894	975	44	from	from	IN
37894	975	45	Yucatán	Yucatán	NNP
37894	975	46	and	and	CC
37894	975	47	points	point	VBZ
37894	975	48	to	to	IN
37894	975	49	the	the	DT
37894	975	50	southward	southward	NN
37894	975	51	;	;	:
37894	975	52	and	and	CC
37894	975	53	,	,	,
37894	975	54	finally	finally	RB
37894	975	55	,	,	,
37894	975	56	by	by	IN
37894	975	57	an	an	DT
37894	975	58	overland	overland	NN
37894	975	59	route	route	NN
37894	975	60	from	from	IN
37894	975	61	Central	Central	NNP
37894	975	62	America	America	NNP
37894	975	63	via	via	IN
37894	975	64	the	the	DT
37894	975	65	western	western	JJ
37894	975	66	edge	edge	NN
37894	975	67	of	of	IN
37894	975	68	the	the	DT
37894	975	69	Gulf	Gulf	NNP
37894	975	70	.	.	.
37894	976	1	As	as	IN
37894	976	2	a	a	DT
37894	976	3	result	result	NN
37894	976	4	of	of	IN
37894	976	5	Louisiana	Louisiana	NNP
37894	976	6	State	State	NNP
37894	976	7	University	University	NNP
37894	976	8	's	's	POS
37894	976	9	four	four	CD
37894	976	10	-	-	HYPH
37894	976	11	year	year	NN
37894	976	12	study	study	NN
37894	976	13	of	of	IN
37894	976	14	the	the	DT
37894	976	15	avifauna	avifauna	NNP
37894	976	16	in	in	IN
37894	976	17	eastern	eastern	JJ
37894	976	18	Mexico	Mexico	NNP
37894	976	19	,	,	,
37894	976	20	I	-PRON-	PRP
37894	976	21	know	know	VBP
37894	976	22	that	that	IN
37894	976	23	migrants	migrant	NNS
37894	976	24	reach	reach	VBP
37894	976	25	Texas	Texas	NNP
37894	976	26	from	from	IN
37894	976	27	the	the	DT
37894	976	28	first	first	JJ
37894	976	29	source	source	NN
37894	976	30	.	.	.
37894	977	1	As	as	IN
37894	977	2	a	a	DT
37894	977	3	consequence	consequence	NN
37894	977	4	of	of	IN
37894	977	5	my	-PRON-	PRP$
37894	977	6	studies	study	NNS
37894	977	7	in	in	IN
37894	977	8	Yucatán	Yucatán	NNP
37894	977	9	of	of	IN
37894	977	10	nocturnal	nocturnal	JJ
37894	977	11	flight	flight	NN
37894	977	12	densities	density	NNS
37894	977	13	and	and	CC
37894	977	14	their	-PRON-	PRP$
37894	977	15	directional	directional	JJ
37894	977	16	trends	trend	NNS
37894	977	17	,	,	,
37894	977	18	I	-PRON-	PRP
37894	977	19	strongly	strongly	RB
37894	977	20	believe	believe	VBP
37894	977	21	that	that	IN
37894	977	22	migrants	migrant	NNS
37894	977	23	reach	reach	VBP
37894	977	24	Texas	Texas	NNP
37894	977	25	from	from	IN
37894	977	26	this	this	DT
37894	977	27	second	second	JJ
37894	977	28	source	source	NN
37894	977	29	.	.	.
37894	978	1	As	as	IN
37894	978	2	for	for	IN
37894	978	3	the	the	DT
37894	978	4	third	third	JJ
37894	978	5	source	source	NN
37894	978	6	,	,	,
37894	978	7	I	-PRON-	PRP
37894	978	8	have	have	VBP
37894	978	9	never	never	RB
37894	978	10	expressed	express	VBN
37894	978	11	an	an	DT
37894	978	12	opinion	opinion	NN
37894	978	13	.	.	.
37894	979	1	I	-PRON-	PRP
37894	979	2	am	be	VBP
37894	979	3	not	not	RB
37894	979	4	prepared	prepared	JJ
37894	979	5	to	to	TO
37894	979	6	do	do	VB
37894	979	7	so	so	RB
37894	979	8	now	now	RB
37894	979	9	,	,	,
37894	979	10	for	for	IN
37894	979	11	the	the	DT
37894	979	12	reason	reason	NN
37894	979	13	that	that	IN
37894	979	14	today	today	NN
37894	979	15	,	,	,
37894	979	16	as	as	IN
37894	979	17	three	three	CD
37894	979	18	years	year	NNS
37894	979	19	ago	ago	RB
37894	979	20	,	,	,
37894	979	21	there	there	EX
37894	979	22	is	be	VBZ
37894	979	23	no	no	DT
37894	979	24	dependable	dependable	JJ
37894	979	25	evidence	evidence	NN
37894	979	26	on	on	IN
37894	979	27	which	which	WDT
37894	979	28	to	to	TO
37894	979	29	base	base	VB
37894	979	30	a	a	DT
37894	979	31	judgment	judgment	NN
37894	979	32	one	one	CD
37894	979	33	way	way	NN
37894	979	34	or	or	CC
37894	979	35	another	another	DT
37894	979	36	.	.	.
37894	980	1	TABLE	TABLE	NNP
37894	980	2	6.--Computed	6.--compute	VBD
37894	980	3	Hourly	hourly	JJ
37894	980	4	Densities	density	NNS
37894	980	5	at	at	IN
37894	980	6	Tampico	Tampico	NNP
37894	980	7	,	,	,
37894	980	8	Tamps	Tamps	NNP
37894	980	9	.	.	.
37894	980	10	,	,	,
37894	980	11	in	in	IN
37894	980	12	Spring	Spring	NNP
37894	980	13	of	of	IN
37894	980	14	1948	1948	CD
37894	980	15	=	=	SYM
37894	980	16	=	=	SYM
37894	980	17	=	=	SYM
37894	980	18	=	=	SYM
37894	980	19	=	=	SYM
37894	980	20	=	=	SYM
37894	980	21	=	=	SYM
37894	980	22	=	=	SYM
37894	980	23	=	=	SYM
37894	980	24	=	=	SYM
37894	980	25	=	=	SYM
37894	980	26	=	=	SYM
37894	980	27	=	=	SYM
37894	980	28	=	=	SYM
37894	980	29	=	=	SYM
37894	980	30	=	=	SYM
37894	980	31	=	=	SYM
37894	980	32	=	=	SYM
37894	980	33	=	=	SYM
37894	980	34	=	=	SYM
37894	980	35	=	=	SYM
37894	980	36	=	=	SYM
37894	980	37	=	=	SYM
37894	980	38	=	=	SYM
37894	980	39	=	=	SYM
37894	980	40	=	=	SYM
37894	980	41	=	=	SYM
37894	980	42	=	=	SYM
37894	980	43	=	=	SYM
37894	980	44	=	=	SYM
37894	980	45	=	=	SYM
37894	980	46	=	=	SYM
37894	980	47	=	=	SYM
37894	980	48	=	=	SYM
37894	980	49	=	=	SYM
37894	980	50	=	=	SYM
37894	980	51	=	=	SYM
37894	980	52	=	=	SYM
37894	980	53	=	=	SYM
37894	980	54	=	=	SYM
37894	980	55	=	=	SYM
37894	980	56	=	=	SYM
37894	980	57	=	=	SYM
37894	980	58	=	=	SYM
37894	980	59	=	=	SYM
37894	980	60	=	=	SYM
37894	980	61	=	=	SYM
37894	980	62	=	=	SYM
37894	980	63	=	=	SYM
37894	980	64	=	=	SYM
37894	980	65	=	=	SYM
37894	980	66	=	=	SYM
37894	980	67	=	=	SYM
37894	980	68	=	=	SYM
37894	980	69	=	=	SYM
37894	980	70	=	=	SYM
37894	980	71	=	=	SYM
37894	980	72	=	=	SYM
37894	980	73	=	=	SYM
37894	980	74	=	=	SYM
37894	980	75	=	=	SYM
37894	980	76	=	=	SYM
37894	980	77	=	=	SYM
37894	980	78	=	=	SYM
37894	980	79	=	=	SYM
37894	980	80	=	=	SYM
37894	980	81	=	=	SYM
37894	980	82	=	=	SYM
37894	980	83	=	=	SYM
37894	980	84	=	=	SYM
37894	980	85	=	=	SYM
37894	980	86	=	=	SYM
37894	980	87	=	=	SYM
37894	980	88	|	|	NNP
37894	980	89	Average	average	JJ
37894	980	90	hour	hour	NN
37894	980	91	of	of	IN
37894	980	92	observation	observation	NN
37894	980	93	DATE	DATE	NNP
37894	980	94	|-----+------+-------+-------+------+------+------+------+----	|-----+------+-------+-------+------+------+------+------+----	NFP
37894	980	95	|	|	CD
37894	980	96	8:30|	8:30|	CD
37894	980	97	9:30	9:30	CD
37894	980	98	|	|	CD
37894	980	99	10:30	10:30	CD
37894	980	100	|	|	CD
37894	980	101	11:30	11:30	CD
37894	980	102	|12:30	|12:30	NNP
37894	980	103	|	|	CD
37894	980	104	1:30	1:30	CD
37894	980	105	|	|	CD
37894	980	106	2:30	2:30	CD
37894	980	107	|	|	CD
37894	980	108	3:30	3:30	CD
37894	980	109	|4:30	|4:30	JJ
37894	980	110	-----------|-----+------+-------+-------+------+------+------+------+----	-----------|-----+------+-------+-------+------+------+------+------+----	SYM
37894	980	111	22	22	CD
37894	980	112	-	-	HYPH
37894	980	113	23	23	CD
37894	980	114	March|	march|	NN
37894	980	115	600|	600|	CD
37894	980	116	700	700	CD
37894	980	117	|	|	CD
37894	980	118	1,000	1,000	CD
37894	980	119	|	|	CD
37894	980	120	800	800	CD
37894	980	121	|	|	CD
37894	980	122	100	100	CD
37894	980	123	|	|	CD
37894	980	124	100	100	CD
37894	980	125	|	|	CD
37894	980	126	0	0	CD
37894	980	127	|	|	CD
37894	980	128	100	100	CD
37894	980	129	|	|	CD
37894	980	130	..	..	NFP
37894	980	131	23	23	CD
37894	980	132	-	-	SYM
37894	980	133	24	24	CD
37894	980	134	March|	march|	NN
37894	980	135	0|	0|	CD
37894	980	136	400	400	CD
37894	980	137	|	|	CD
37894	980	138	1,200	1,200	CD
37894	980	139	|	|	CD
37894	980	140	3,100	3,100	CD
37894	980	141	|	|	CD
37894	980	142	800	800	CD
37894	980	143	|	|	CD
37894	980	144	..	..	NFP
37894	980	145	|	|	NNP
37894	980	146	..	..	NFP
37894	980	147	|	|	NNP
37894	980	148	..	..	NFP
37894	980	149	|	|	CD
37894	980	150	..	..	.
37894	980	151	24	24	CD
37894	980	152	-	-	SYM
37894	980	153	25	25	CD
37894	980	154	March|	march|	NN
37894	980	155	300|	300|	NNP
37894	980	156	700	700	CD
37894	980	157	|	|	CD
37894	980	158	800	800	CD
37894	980	159	|	|	CD
37894	980	160	1,600	1,600	CD
37894	980	161	|1,100	|1,100	NNS
37894	980	162	|	|	CD
37894	980	163	..	..	NFP
37894	980	164	|	|	NNP
37894	980	165	..	..	NFP
37894	980	166	|	|	NNP
37894	980	167	..	..	NFP
37894	980	168	|	|	CD
37894	980	169	..	..	NFP
37894	980	170	21	21	CD
37894	980	171	-	-	SYM
37894	980	172	22	22	CD
37894	980	173	April|1,100|7,000	april|1,100|7,000	CD
37894	980	174	|14,900	|14,900	CD
37894	980	175	|12,900	|12,900	CD
37894	980	176	|8,100	|8,100	NNS
37894	980	177	|3,800	|3,800	NNP
37894	980	178	|3,500	|3,500	NNP
37894	980	179	|	|	NNP
37894	980	180	200	200	CD
37894	980	181	|	|	CD
37894	980	182	..	..	NFP
37894	980	183	22	22	CD
37894	980	184	-	-	SYM
37894	980	185	23	23	CD
37894	980	186	April|	April|	NNP
37894	980	187	700|2,900	700|2,900	CD
37894	980	188	|	|	CD
37894	980	189	7,500	7,500	CD
37894	980	190	|	|	NNP
37894	980	191	..	..	NFP
37894	980	192	|	|	NNP
37894	980	193	..	..	NFP
37894	980	194	|	|	NNP
37894	980	195	..	..	NFP
37894	980	196	|	|	NNP
37894	980	197	..	..	NFP
37894	980	198	|	|	NNP
37894	980	199	..	..	NFP
37894	980	200	|	|	CD
37894	980	201	..	..	NFP
37894	980	202	23	23	CD
37894	980	203	-	-	SYM
37894	980	204	24	24	CD
37894	980	205	April|	april|	SYM
37894	980	206	600|4,700	600|4,700	CD
37894	980	207	|19,100	|19,100	CD
37894	980	208	|21,200	|21,200	CD
37894	980	209	|5,500	|5,500	JJ
37894	980	210	|5,900	|5,900	NNP
37894	980	211	|4,000	|4,000	NNP
37894	980	212	|2,000	|2,000	NNP
37894	980	213	|200	|200	NNP
37894	980	214	-------------------------------------------------------------------------	-------------------------------------------------------------------------	CD
37894	980	215	_	_	NNP
37894	980	216	Western	Western	NNP
37894	980	217	Gulf	Gulf	NNP
37894	980	218	Area	Area	NNP
37894	980	219	_	_	NNP
37894	980	220	Among	among	IN
37894	980	221	the	the	DT
37894	980	222	present	present	JJ
37894	980	223	flight	flight	NN
37894	980	224	density	density	NN
37894	980	225	data	datum	NNS
37894	980	226	bearing	bear	VBG
37894	980	227	on	on	IN
37894	980	228	the	the	DT
37894	980	229	above	above	JJ
37894	980	230	issues	issue	NNS
37894	980	231	,	,	,
37894	980	232	are	be	VBP
37894	980	233	the	the	DT
37894	980	234	six	six	CD
37894	980	235	sets	set	NNS
37894	980	236	of	of	IN
37894	980	237	observations	observation	NNS
37894	980	238	from	from	IN
37894	980	239	the	the	DT
37894	980	240	vicinity	vicinity	NN
37894	980	241	of	of	IN
37894	980	242	Tampico	Tampico	NNP
37894	980	243	,	,	,
37894	980	244	Tamaulipas	Tamaulipas	NNP
37894	980	245	,	,	,
37894	980	246	already	already	RB
37894	980	247	referred	refer	VBD
37894	980	248	to	to	IN
37894	980	249	.	.	.
37894	981	1	These	these	DT
37894	981	2	were	be	VBD
37894	981	3	secured	secure	VBN
37894	981	4	in	in	IN
37894	981	5	the	the	DT
37894	981	6	spring	spring	NN
37894	981	7	of	of	IN
37894	981	8	1948	1948	CD
37894	981	9	by	by	IN
37894	981	10	a	a	DT
37894	981	11	telescope	telescope	NN
37894	981	12	set	set	VBN
37894	981	13	up	up	RP
37894	981	14	on	on	IN
37894	981	15	the	the	DT
37894	981	16	Gulf	Gulf	NNP
37894	981	17	beach	beach	NN
37894	981	18	just	just	RB
37894	981	19	north	north	RB
37894	981	20	of	of	IN
37894	981	21	the	the	DT
37894	981	22	Miramar	Miramar	NNP
37894	981	23	pavilion	pavilion	NN
37894	981	24	and	and	CC
37894	981	25	only	only	RB
37894	981	26	a	a	DT
37894	981	27	hundred	hundred	CD
37894	981	28	feet	foot	NNS
37894	981	29	from	from	IN
37894	981	30	the	the	DT
37894	981	31	surf	surf	NN
37894	981	32	(	(	-LRB-
37894	981	33	see	see	VB
37894	981	34	Figure	Figure	NNP
37894	981	35	25	25	CD
37894	981	36	,	,	,
37894	981	37	_	_	NNP
37894	981	38	ante	ante	NNP
37894	981	39	_	_	NNP
37894	981	40	)	)	-RRB-
37894	981	41	.	.	.
37894	982	1	The	the	DT
37894	982	2	beach	beach	NN
37894	982	3	here	here	RB
37894	982	4	is	be	VBZ
37894	982	5	approximately	approximately	RB
37894	982	6	400	400	CD
37894	982	7	feet	foot	NNS
37894	982	8	wide	wide	JJ
37894	982	9	and	and	CC
37894	982	10	is	be	VBZ
37894	982	11	backed	back	VBN
37894	982	12	by	by	IN
37894	982	13	scrub	scrub	NN
37894	982	14	-	-	HYPH
37894	982	15	covered	cover	VBN
37894	982	16	dunes	dune	NNS
37894	982	17	,	,	,
37894	982	18	which	which	WDT
37894	982	19	rapidly	rapidly	RB
37894	982	20	give	give	VBP
37894	982	21	way	way	NN
37894	982	22	toward	toward	IN
37894	982	23	the	the	DT
37894	982	24	west	west	NN
37894	982	25	to	to	IN
37894	982	26	a	a	DT
37894	982	27	rather	rather	RB
37894	982	28	dense	dense	JJ
37894	982	29	growth	growth	NN
37894	982	30	of	of	IN
37894	982	31	low	low	JJ
37894	982	32	shrubs	shrub	NNS
37894	982	33	and	and	CC
37894	982	34	trees	tree	NNS
37894	982	35	.	.	.
37894	983	1	One	one	PRP
37894	983	2	might	may	MD
37894	983	3	have	have	VB
37894	983	4	expected	expect	VBN
37894	983	5	that	that	IN
37894	983	6	station	station	NN
37894	983	7	densities	density	NNS
37894	983	8	at	at	IN
37894	983	9	Tampico	Tampico	NNP
37894	983	10	in	in	IN
37894	983	11	March	March	NNP
37894	983	12	would	would	MD
37894	983	13	be	be	VB
37894	983	14	rather	rather	RB
37894	983	15	high	high	JJ
37894	983	16	.	.	.
37894	984	1	Actually	actually	RB
37894	984	2	,	,	,
37894	984	3	though	though	IN
37894	984	4	they	-PRON-	PRP
37894	984	5	are	be	VBP
37894	984	6	the	the	DT
37894	984	7	second	second	RB
37894	984	8	highest	high	JJS
37894	984	9	recorded	record	VBN
37894	984	10	for	for	IN
37894	984	11	the	the	DT
37894	984	12	month	month	NN
37894	984	13	,	,	,
37894	984	14	they	-PRON-	PRP
37894	984	15	are	be	VBP
37894	984	16	not	not	RB
37894	984	17	impressive	impressive	JJ
37894	984	18	and	and	CC
37894	984	19	afford	afford	VB
37894	984	20	a	a	DT
37894	984	21	striking	striking	JJ
37894	984	22	contrast	contrast	NN
37894	984	23	with	with	IN
37894	984	24	the	the	DT
37894	984	25	record	record	NN
37894	984	26	flights	flight	NNS
37894	984	27	there	there	RB
37894	984	28	in	in	IN
37894	984	29	April	April	NNP
37894	984	30	(	(	-LRB-
37894	984	31	Table	Table	NNP
37894	984	32	6	6	CD
37894	984	33	)	)	-RRB-
37894	984	34	.	.	.
37894	985	1	Unfortunately	unfortunately	RB
37894	985	2	,	,	,
37894	985	3	only	only	RB
37894	985	4	a	a	DT
37894	985	5	few	few	JJ
37894	985	6	stations	station	NNS
37894	985	7	were	be	VBD
37894	985	8	operating	operate	VBG
37894	985	9	in	in	IN
37894	985	10	March	March	NNP
37894	985	11	and	and	CC
37894	985	12	thus	thus	RB
37894	985	13	adequate	adequate	JJ
37894	985	14	comparisons	comparison	NNS
37894	985	15	are	be	VBP
37894	985	16	impossible	impossible	JJ
37894	985	17	;	;	:
37894	985	18	but	but	CC
37894	985	19	the	the	DT
37894	985	20	indications	indication	NNS
37894	985	21	are	be	VBP
37894	985	22	that	that	IN
37894	985	23	,	,	,
37894	985	24	in	in	IN
37894	985	25	March	March	NNP
37894	985	26	,	,	,
37894	985	27	migration	migration	NN
37894	985	28	activity	activity	NN
37894	985	29	on	on	IN
37894	985	30	the	the	DT
37894	985	31	western	western	JJ
37894	985	32	edges	edge	NNS
37894	985	33	of	of	IN
37894	985	34	the	the	DT
37894	985	35	Gulf	Gulf	NNP
37894	985	36	is	be	VBZ
37894	985	37	slight	slight	JJ
37894	985	38	.	.	.
37894	986	1	It	-PRON-	PRP
37894	986	2	fails	fail	VBZ
37894	986	3	even	even	RB
37894	986	4	to	to	TO
37894	986	5	approach	approach	VB
37894	986	6	the	the	DT
37894	986	7	volume	volume	NN
37894	986	8	that	that	WDT
37894	986	9	may	may	MD
37894	986	10	be	be	VB
37894	986	11	observed	observe	VBN
37894	986	12	elsewhere	elsewhere	RB
37894	986	13	at	at	IN
37894	986	14	the	the	DT
37894	986	15	same	same	JJ
37894	986	16	time	time	NN
37894	986	17	,	,	,
37894	986	18	as	as	IN
37894	986	19	for	for	IN
37894	986	20	example	example	NN
37894	986	21	,	,	,
37894	986	22	in	in	IN
37894	986	23	eastern	eastern	JJ
37894	986	24	Kansas	Kansas	NNP
37894	986	25	where	where	WRB
37894	986	26	,	,	,
37894	986	27	however	however	RB
37894	986	28	,	,	,
37894	986	29	the	the	DT
37894	986	30	migration	migration	NN
37894	986	31	is	be	VBZ
37894	986	32	not	not	RB
37894	986	33	necessarily	necessarily	RB
37894	986	34	correlated	correlate	VBN
37894	986	35	with	with	IN
37894	986	36	the	the	DT
37894	986	37	migration	migration	NN
37894	986	38	in	in	IN
37894	986	39	the	the	DT
37894	986	40	lower	low	JJR
37894	986	41	Gulf	Gulf	NNP
37894	986	42	area	area	NN
37894	986	43	.	.	.
37894	987	1	Strangely	strangely	RB
37894	987	2	enough	enough	RB
37894	987	3	,	,	,
37894	987	4	on	on	IN
37894	987	5	the	the	DT
37894	987	6	night	night	NN
37894	987	7	of	of	IN
37894	987	8	March	March	NNP
37894	987	9	22	22	CD
37894	987	10	-	-	SYM
37894	987	11	23	23	CD
37894	987	12	,	,	,
37894	987	13	at	at	IN
37894	987	14	Tampico	Tampico	NNP
37894	987	15	,	,	,
37894	987	16	approximately	approximately	RB
37894	987	17	85	85	CD
37894	987	18	per	per	NN
37894	987	19	cent	cent	NN
37894	987	20	of	of	IN
37894	987	21	the	the	DT
37894	987	22	birds	bird	NNS
37894	987	23	were	be	VBD
37894	987	24	flying	fly	VBG
37894	987	25	from	from	IN
37894	987	26	north	north	RB
37894	987	27	of	of	IN
37894	987	28	an	an	DT
37894	987	29	east	east	JJ
37894	987	30	-	-	HYPH
37894	987	31	west	west	NN
37894	987	32	line	line	NN
37894	987	33	to	to	IN
37894	987	34	south	south	NN
37894	987	35	of	of	IN
37894	987	36	it	-PRON-	PRP
37894	987	37	,	,	,
37894	987	38	opposite	opposite	RB
37894	987	39	to	to	IN
37894	987	40	the	the	DT
37894	987	41	normal	normal	JJ
37894	987	42	trend	trend	NN
37894	987	43	of	of	IN
37894	987	44	spring	spring	NN
37894	987	45	migration	migration	NN
37894	987	46	.	.	.
37894	988	1	This	this	DT
37894	988	2	phenomenon	phenomenon	NN
37894	988	3	,	,	,
37894	988	4	inexplicable	inexplicable	JJ
37894	988	5	in	in	IN
37894	988	6	the	the	DT
37894	988	7	present	present	JJ
37894	988	8	instance	instance	NN
37894	988	9	,	,	,
37894	988	10	will	will	MD
37894	988	11	be	be	VB
37894	988	12	discussed	discuss	VBN
37894	988	13	below	below	RB
37894	988	14	.	.	.
37894	989	1	On	on	IN
37894	989	2	the	the	DT
37894	989	3	other	other	JJ
37894	989	4	two	two	CD
37894	989	5	nights	night	NNS
37894	989	6	in	in	IN
37894	989	7	March	March	NNP
37894	989	8	,	,	,
37894	989	9	the	the	DT
37894	989	10	directional	directional	JJ
37894	989	11	trend	trend	NN
37894	989	12	at	at	IN
37894	989	13	Tampico	Tampico	NNP
37894	989	14	was	be	VBD
37894	989	15	northward	northward	RB
37894	989	16	with	with	IN
37894	989	17	few	few	JJ
37894	989	18	or	or	CC
37894	989	19	no	no	DT
37894	989	20	aberrant	aberrant	JJ
37894	989	21	components	component	NNS
37894	989	22	.	.	.
37894	990	1	Observations	observation	NNS
37894	990	2	made	make	VBD
37894	990	3	approximately	approximately	RB
37894	990	4	thirty	thirty	CD
37894	990	5	-	-	HYPH
37894	990	6	five	five	CD
37894	990	7	miles	mile	NNS
37894	990	8	inland	inland	RB
37894	990	9	from	from	IN
37894	990	10	the	the	DT
37894	990	11	Gulf	Gulf	NNP
37894	990	12	,	,	,
37894	990	13	at	at	IN
37894	990	14	Ebano	Ebano	NNP
37894	990	15	,	,	,
37894	990	16	San	San	NNP
37894	990	17	Luis	Luis	NNP
37894	990	18	Potosí	Potosí	NNP
37894	990	19	,	,	,
37894	990	20	on	on	IN
37894	990	21	the	the	DT
37894	990	22	night	night	NN
37894	990	23	of	of	IN
37894	990	24	March	March	NNP
37894	990	25	25	25	CD
37894	990	26	-	-	SYM
37894	990	27	26	26	CD
37894	990	28	,	,	,
37894	990	29	show	show	VB
37894	990	30	lower	low	JJR
37894	990	31	station	station	NN
37894	990	32	densities	density	NNS
37894	990	33	than	than	IN
37894	990	34	the	the	DT
37894	990	35	poorest	poor	JJS
37894	990	36	night	night	NN
37894	990	37	at	at	IN
37894	990	38	Tampico	Tampico	NNP
37894	990	39	,	,	,
37894	990	40	but	but	CC
37894	990	41	since	since	IN
37894	990	42	they	-PRON-	PRP
37894	990	43	cover	cover	VBP
37894	990	44	only	only	RB
37894	990	45	a	a	DT
37894	990	46	three	three	CD
37894	990	47	-	-	HYPH
37894	990	48	hour	hour	NN
37894	990	49	watch	watch	NN
37894	990	50	,	,	,
37894	990	51	they	-PRON-	PRP
37894	990	52	reveal	reveal	VBP
37894	990	53	little	little	JJ
37894	990	54	or	or	CC
37894	990	55	nothing	nothing	NN
37894	990	56	concerning	concern	VBG
37894	990	57	the	the	DT
37894	990	58	breadth	breadth	NN
37894	990	59	of	of	IN
37894	990	60	the	the	DT
37894	990	61	so	so	RB
37894	990	62	-	-	HYPH
37894	990	63	called	call	VBN
37894	990	64	coastal	coastal	JJ
37894	990	65	flyway	flyway	NN
37894	990	66	.	.	.
37894	991	1	April	April	NNP
37894	991	2	flight	flight	NN
37894	991	3	densities	density	NNS
37894	991	4	at	at	IN
37894	991	5	Tampico	Tampico	NNP
37894	991	6	are	be	VBP
37894	991	7	the	the	DT
37894	991	8	highest	high	JJS
37894	991	9	recorded	record	VBN
37894	991	10	in	in	IN
37894	991	11	the	the	DT
37894	991	12	course	course	NN
37894	991	13	of	of	IN
37894	991	14	this	this	DT
37894	991	15	study	study	NN
37894	991	16	.	.	.
37894	992	1	The	the	DT
37894	992	2	maximum	maximum	JJ
37894	992	3	hourly	hourly	JJ
37894	992	4	density	density	NN
37894	992	5	of	of	IN
37894	992	6	21,200	21,200	CD
37894	992	7	birds	bird	NNS
37894	992	8	is	be	VBZ
37894	992	9	46	46	CD
37894	992	10	per	per	NN
37894	992	11	cent	cent	NN
37894	992	12	higher	high	JJR
37894	992	13	than	than	IN
37894	992	14	the	the	DT
37894	992	15	maximum	maximum	JJ
37894	992	16	hourly	hourly	JJ
37894	992	17	density	density	NN
37894	992	18	anywhere	anywhere	RB
37894	992	19	else	else	RB
37894	992	20	.	.	.
37894	993	1	The	the	DT
37894	993	2	average	average	JJ
37894	993	3	hourly	hourly	JJ
37894	993	4	density	density	NN
37894	993	5	of	of	IN
37894	993	6	6,300	6,300	CD
37894	993	7	in	in	IN
37894	993	8	April	April	NNP
37894	993	9	is	be	VBZ
37894	993	10	more	more	JJR
37894	993	11	than	than	IN
37894	993	12	twice	twice	RB
37894	993	13	as	as	RB
37894	993	14	great	great	JJ
37894	993	15	as	as	IN
37894	993	16	the	the	DT
37894	993	17	next	next	RB
37894	993	18	highest	high	JJS
37894	993	19	average	average	NN
37894	993	20	for	for	IN
37894	993	21	that	that	DT
37894	993	22	month	month	NN
37894	993	23	.	.	.
37894	994	1	These	these	DT
37894	994	2	figures	figure	NNS
37894	994	3	would	would	MD
37894	994	4	seem	seem	VB
37894	994	5	to	to	TO
37894	994	6	satisfy	satisfy	VB
37894	994	7	certain	certain	JJ
37894	994	8	hypotheses	hypothesis	NNS
37894	994	9	regarding	regard	VBG
37894	994	10	a	a	DT
37894	994	11	coastwise	coastwise	NN
37894	994	12	flight	flight	NN
37894	994	13	of	of	IN
37894	994	14	birds	bird	NNS
37894	994	15	around	around	IN
37894	994	16	the	the	DT
37894	994	17	western	western	JJ
37894	994	18	edge	edge	NN
37894	994	19	of	of	IN
37894	994	20	the	the	DT
37894	994	21	Gulf	Gulf	NNP
37894	994	22	.	.	.
37894	995	1	Other	other	JJ
37894	995	2	aspects	aspect	NNS
37894	995	3	of	of	IN
37894	995	4	the	the	DT
37894	995	5	observations	observation	NNS
37894	995	6	made	make	VBN
37894	995	7	at	at	IN
37894	995	8	that	that	DT
37894	995	9	time	time	NN
37894	995	10	do	do	VBP
37894	995	11	not	not	RB
37894	995	12	satisfy	satisfy	VB
37894	995	13	these	these	DT
37894	995	14	hypotheses	hypothesis	NNS
37894	995	15	.	.	.
37894	996	1	Texas	Texas	NNP
37894	996	2	ornithologists	ornithologist	NNS
37894	996	3	have	have	VBP
37894	996	4	found	find	VBN
37894	996	5	that	that	IN
37894	996	6	in	in	IN
37894	996	7	periods	period	NNS
37894	996	8	of	of	IN
37894	996	9	heavy	heavy	JJ
37894	996	10	spring	spring	NN
37894	996	11	migration	migration	NN
37894	996	12	,	,	,
37894	996	13	great	great	JJ
37894	996	14	numbers	number	NNS
37894	996	15	of	of	IN
37894	996	16	birds	bird	NNS
37894	996	17	are	be	VBP
37894	996	18	invariably	invariably	RB
37894	996	19	precipitated	precipitate	VBN
37894	996	20	by	by	IN
37894	996	21	rainy	rainy	JJ
37894	996	22	weather	weather	NN
37894	996	23	.	.	.
37894	997	1	On	on	IN
37894	997	2	April	April	NNP
37894	997	3	23	23	CD
37894	997	4	,	,	,
37894	997	5	in	in	IN
37894	997	6	the	the	DT
37894	997	7	midst	midst	NN
37894	997	8	of	of	IN
37894	997	9	the	the	DT
37894	997	10	record	record	NN
37894	997	11	-	-	HYPH
37894	997	12	breaking	break	VBG
37894	997	13	telescopic	telescopic	JJ
37894	997	14	studies	study	NNS
37894	997	15	at	at	IN
37894	997	16	Tampico	Tampico	NNP
37894	997	17	,	,	,
37894	997	18	Mr.	Mr.	NNP
37894	997	19	Robert	Robert	NNP
37894	997	20	J.	J.	NNP
37894	997	21	Newman	Newman	NNP
37894	997	22	made	make	VBD
37894	997	23	a	a	DT
37894	997	24	daytime	daytime	JJ
37894	997	25	census	census	NN
37894	997	26	immediately	immediately	RB
37894	997	27	following	follow	VBG
37894	997	28	four	four	CD
37894	997	29	hours	hour	NNS
37894	997	30	of	of	IN
37894	997	31	rain	rain	NN
37894	997	32	.	.	.
37894	998	1	He	-PRON-	PRP
37894	998	2	made	make	VBD
37894	998	3	an	an	DT
37894	998	4	intensive	intensive	JJ
37894	998	5	search	search	NN
37894	998	6	of	of	IN
37894	998	7	a	a	DT
37894	998	8	small	small	JJ
37894	998	9	area	area	NN
37894	998	10	of	of	IN
37894	998	11	brush	brush	NN
37894	998	12	and	and	CC
37894	998	13	low	low	JJ
37894	998	14	growth	growth	NN
37894	998	15	back	back	RB
37894	998	16	of	of	IN
37894	998	17	the	the	DT
37894	998	18	beach	beach	NN
37894	998	19	for	for	IN
37894	998	20	traces	trace	NNS
37894	998	21	of	of	IN
37894	998	22	North	north	JJ
37894	998	23	American	american	JJ
37894	998	24	migrants	migrant	NNS
37894	998	25	.	.	.
37894	999	1	In	in	IN
37894	999	2	his	-PRON-	PRP$
37894	999	3	best	good	JJS
37894	999	4	hour	hour	NN
37894	999	5	,	,	,
37894	999	6	only	only	RB
37894	999	7	thirteen	thirteen	CD
37894	999	8	individual	individual	JJ
37894	999	9	birds	bird	NNS
37894	999	10	out	out	IN
37894	999	11	of	of	IN
37894	999	12	seventy	seventy	CD
37894	999	13	-	-	HYPH
37894	999	14	five	five	CD
37894	999	15	seen	see	VBN
37894	999	16	were	be	VBD
37894	999	17	of	of	IN
37894	999	18	species	specie	NNS
37894	999	19	that	that	WDT
37894	999	20	do	do	VBP
37894	999	21	not	not	RB
37894	999	22	breed	breed	VB
37894	999	23	there	there	RB
37894	999	24	.	.	.
37894	1000	1	The	the	DT
37894	1000	2	transient	transient	JJ
37894	1000	3	species	specie	NNS
37894	1000	4	were	be	VBD
37894	1000	5	the	the	DT
37894	1000	6	Ruby	Ruby	NNP
37894	1000	7	-	-	HYPH
37894	1000	8	throated	throated	NNP
37894	1000	9	Hummingbird	Hummingbird	NNP
37894	1000	10	(	(	-LRB-
37894	1000	11	1	1	CD
37894	1000	12	)	)	-RRB-
37894	1000	13	,	,	,
37894	1000	14	Scissor	Scissor	NNP
37894	1000	15	-	-	HYPH
37894	1000	16	tailed	tail	VBN
37894	1000	17	Flycatcher	Flycatcher	NNP
37894	1000	18	(	(	-LRB-
37894	1000	19	1	1	CD
37894	1000	20	)	)	-RRB-
37894	1000	21	,	,	,
37894	1000	22	Western	western	JJ
37894	1000	23	Wood	Wood	NNP
37894	1000	24	Pewee	Pewee	NNP
37894	1000	25	(	(	-LRB-
37894	1000	26	1	1	CD
37894	1000	27	)	)	-RRB-
37894	1000	28	,	,	,
37894	1000	29	Black	Black	NNP
37894	1000	30	-	-	HYPH
37894	1000	31	throated	throate	VBN
37894	1000	32	Green	Green	NNP
37894	1000	33	Warbler	Warbler	NNP
37894	1000	34	(	(	-LRB-
37894	1000	35	2	2	LS
37894	1000	36	)	)	-RRB-
37894	1000	37	Orchard	Orchard	NNP
37894	1000	38	Oriole	Oriole	NNP
37894	1000	39	(	(	-LRB-
37894	1000	40	7	7	CD
37894	1000	41	)	)	-RRB-
37894	1000	42	,	,	,
37894	1000	43	and	and	CC
37894	1000	44	Baltimore	Baltimore	NNP
37894	1000	45	Oriole	Oriole	NNP
37894	1000	46	(	(	-LRB-
37894	1000	47	1	1	CD
37894	1000	48	)	)	-RRB-
37894	1000	49	,	,	,
37894	1000	50	all	all	DT
37894	1000	51	of	of	IN
37894	1000	52	which	which	WDT
37894	1000	53	winter	winter	NN
37894	1000	54	extensively	extensively	RB
37894	1000	55	in	in	IN
37894	1000	56	southern	southern	JJ
37894	1000	57	Mexico	Mexico	NNP
37894	1000	58	.	.	.
37894	1001	1	Perhaps	perhaps	RB
37894	1001	2	,	,	,
37894	1001	3	however	however	RB
37894	1001	4	,	,	,
37894	1001	5	the	the	DT
37894	1001	6	apparent	apparent	JJ
37894	1001	7	scarcity	scarcity	NN
37894	1001	8	of	of	IN
37894	1001	9	transients	transient	NNS
37894	1001	10	on	on	IN
37894	1001	11	this	this	DT
37894	1001	12	occasion	occasion	NN
37894	1001	13	is	be	VBZ
37894	1001	14	not	not	RB
37894	1001	15	surprising	surprising	JJ
37894	1001	16	in	in	IN
37894	1001	17	the	the	DT
37894	1001	18	light	light	NN
37894	1001	19	of	of	IN
37894	1001	20	the	the	DT
37894	1001	21	analysis	analysis	NN
37894	1001	22	of	of	IN
37894	1001	23	flight	flight	NN
37894	1001	24	density	density	NN
37894	1001	25	in	in	IN
37894	1001	26	terms	term	NNS
37894	1001	27	of	of	IN
37894	1001	28	bird	bird	NN
37894	1001	29	density	density	NN
37894	1001	30	on	on	IN
37894	1001	31	the	the	DT
37894	1001	32	ground	ground	NN
37894	1001	33	which	which	WDT
37894	1001	34	I	-PRON-	PRP
37894	1001	35	shall	shall	MD
37894	1001	36	develop	develop	VB
37894	1001	37	beyond	beyond	RB
37894	1001	38	.	.	.
37894	1002	1	My	-PRON-	PRP$
37894	1002	2	only	only	JJ
37894	1002	3	point	point	NN
37894	1002	4	here	here	RB
37894	1002	5	is	be	VBZ
37894	1002	6	to	to	TO
37894	1002	7	demonstrate	demonstrate	VB
37894	1002	8	that	that	DT
37894	1002	9	rain	rain	NN
37894	1002	10	along	along	IN
37894	1002	11	the	the	DT
37894	1002	12	coast	coast	NN
37894	1002	13	does	do	VBZ
37894	1002	14	not	not	RB
37894	1002	15	always	always	RB
37894	1002	16	produce	produce	VB
37894	1002	17	birds	bird	NNS
37894	1002	18	.	.	.
37894	1003	1	As	as	RB
37894	1003	2	large	large	JJ
37894	1003	3	as	as	IN
37894	1003	4	the	the	DT
37894	1003	5	nocturnal	nocturnal	JJ
37894	1003	6	flights	flight	NNS
37894	1003	7	at	at	IN
37894	1003	8	Tampico	Tampico	NNP
37894	1003	9	have	have	VBP
37894	1003	10	so	so	RB
37894	1003	11	far	far	RB
37894	1003	12	proved	prove	VBN
37894	1003	13	to	to	TO
37894	1003	14	be	be	VB
37894	1003	15	,	,	,
37894	1003	16	they	-PRON-	PRP
37894	1003	17	are	be	VBP
37894	1003	18	not	not	RB
37894	1003	19	commensurate	commensurate	JJ
37894	1003	20	with	with	IN
37894	1003	21	the	the	DT
37894	1003	22	idea	idea	NN
37894	1003	23	that	that	IN
37894	1003	24	nearly	nearly	RB
37894	1003	25	all	all	DT
37894	1003	26	birds	bird	NNS
37894	1003	27	follow	follow	VBP
37894	1003	28	a	a	DT
37894	1003	29	narrow	narrow	JJ
37894	1003	30	coastwise	coastwise	NN
37894	1003	31	route	route	NN
37894	1003	32	around	around	IN
37894	1003	33	the	the	DT
37894	1003	34	Gulf	Gulf	NNP
37894	1003	35	.	.	.
37894	1004	1	To	to	TO
37894	1004	2	establish	establish	VB
37894	1004	3	the	the	DT
37894	1004	4	latter	latter	JJ
37894	1004	5	idea	idea	NN
37894	1004	6	,	,	,
37894	1004	7	one	one	PRP
37894	1004	8	must	must	MD
37894	1004	9	be	be	VB
37894	1004	10	prepared	prepare	VBN
37894	1004	11	to	to	TO
37894	1004	12	show	show	VB
37894	1004	13	that	that	IN
37894	1004	14	the	the	DT
37894	1004	15	migrant	migrant	JJ
37894	1004	16	species	specie	NNS
37894	1004	17	returning	return	VBG
37894	1004	18	to	to	IN
37894	1004	19	the	the	DT
37894	1004	20	United	United	NNP
37894	1004	21	States	States	NNP
37894	1004	22	pass	pass	VB
37894	1004	23	along	along	RP
37894	1004	24	two	two	CD
37894	1004	25	flyways	flyway	NNS
37894	1004	26	a	a	DT
37894	1004	27	few	few	JJ
37894	1004	28	miles	mile	NNS
37894	1004	29	wide	wide	JJ
37894	1004	30	in	in	IN
37894	1004	31	the	the	DT
37894	1004	32	immense	immense	JJ
37894	1004	33	volume	volume	NN
37894	1004	34	necessary	necessary	JJ
37894	1004	35	to	to	TO
37894	1004	36	account	account	VB
37894	1004	37	for	for	IN
37894	1004	38	their	-PRON-	PRP$
37894	1004	39	later	later	JJ
37894	1004	40	abundance	abundance	NN
37894	1004	41	on	on	IN
37894	1004	42	a	a	DT
37894	1004	43	1500-mile	1500-mile	CD
37894	1004	44	front	front	JJ
37894	1004	45	extending	extend	VBG
37894	1004	46	across	across	IN
37894	1004	47	eastern	eastern	JJ
37894	1004	48	North	North	NNP
37894	1004	49	America	America	NNP
37894	1004	50	.	.	.
37894	1005	1	One	one	PRP
37894	1005	2	might	may	MD
37894	1005	3	expect	expect	VB
37894	1005	4	at	at	IN
37894	1005	5	least	least	JJS
37894	1005	6	ten	ten	CD
37894	1005	7	to	to	TO
37894	1005	8	twenty	twenty	CD
37894	1005	9	fold	fold	VB
37894	1005	10	the	the	DT
37894	1005	11	number	number	NN
37894	1005	12	observable	observable	JJ
37894	1005	13	at	at	IN
37894	1005	14	any	any	DT
37894	1005	15	point	point	NN
37894	1005	16	in	in	IN
37894	1005	17	the	the	DT
37894	1005	18	interior	interior	NN
37894	1005	19	of	of	IN
37894	1005	20	the	the	DT
37894	1005	21	United	United	NNP
37894	1005	22	States	States	NNP
37894	1005	23	.	.	.
37894	1006	1	In	in	IN
37894	1006	2	actuality	actuality	NN
37894	1006	3	,	,	,
37894	1006	4	the	the	DT
37894	1006	5	highest	high	JJS
37894	1006	6	nightly	nightly	JJ
37894	1006	7	density	density	NN
37894	1006	8	of	of	IN
37894	1006	9	63,600	63,600	CD
37894	1006	10	birds	bird	NNS
37894	1006	11	at	at	IN
37894	1006	12	Tampico	Tampico	NNP
37894	1006	13	is	be	VBZ
37894	1006	14	barely	barely	RB
37894	1006	15	sufficient	sufficient	JJ
37894	1006	16	to	to	TO
37894	1006	17	account	account	VB
37894	1006	18	for	for	IN
37894	1006	19	the	the	DT
37894	1006	20	highest	high	JJS
37894	1006	21	nightly	nightly	JJ
37894	1006	22	density	density	NN
37894	1006	23	of	of	IN
37894	1006	24	54,600	54,600	CD
37894	1006	25	at	at	IN
37894	1006	26	Ottumwa	Ottumwa	NNP
37894	1006	27	,	,	,
37894	1006	28	Iowa	Iowa	NNP
37894	1006	29	,	,	,
37894	1006	30	alone	alone	RB
37894	1006	31	.	.	.
37894	1007	1	Of	of	RB
37894	1007	2	course	course	RB
37894	1007	3	,	,	,
37894	1007	4	there	there	EX
37894	1007	5	is	be	VBZ
37894	1007	6	no	no	DT
37894	1007	7	way	way	NN
37894	1007	8	of	of	IN
37894	1007	9	knowing	know	VBG
37894	1007	10	how	how	WRB
37894	1007	11	closely	closely	RB
37894	1007	12	a	a	DT
37894	1007	13	ratio	ratio	NN
37894	1007	14	of	of	IN
37894	1007	15	anywhere	anywhere	RB
37894	1007	16	from	from	IN
37894	1007	17	ten	ten	CD
37894	1007	18	to	to	IN
37894	1007	19	one	one	CD
37894	1007	20	through	through	IN
37894	1007	21	twenty	twenty	CD
37894	1007	22	to	to	IN
37894	1007	23	one	one	CD
37894	1007	24	,	,	,
37894	1007	25	employed	employ	VBN
37894	1007	26	in	in	IN
37894	1007	27	this	this	DT
37894	1007	28	comparison	comparison	NN
37894	1007	29	,	,	,
37894	1007	30	expresses	express	VBZ
37894	1007	31	the	the	DT
37894	1007	32	true	true	JJ
37894	1007	33	situation	situation	NN
37894	1007	34	.	.	.
37894	1008	1	It	-PRON-	PRP
37894	1008	2	may	may	MD
37894	1008	3	be	be	VB
37894	1008	4	too	too	RB
37894	1008	5	high	high	JJ
37894	1008	6	.	.	.
37894	1009	1	It	-PRON-	PRP
37894	1009	2	could	could	MD
37894	1009	3	be	be	VB
37894	1009	4	too	too	RB
37894	1009	5	low	low	JJ
37894	1009	6	,	,	,
37894	1009	7	particularly	particularly	RB
37894	1009	8	considering	consider	VBG
37894	1009	9	that	that	IN
37894	1009	10	preliminary	preliminary	JJ
37894	1009	11	studies	study	NNS
37894	1009	12	of	of	IN
37894	1009	13	flight	flight	NN
37894	1009	14	density	density	NN
37894	1009	15	in	in	IN
37894	1009	16	Florida	Florida	NNP
37894	1009	17	indicate	indicate	VBP
37894	1009	18	that	that	IN
37894	1009	19	the	the	DT
37894	1009	20	western	western	JJ
37894	1009	21	shores	shore	NNS
37894	1009	22	of	of	IN
37894	1009	23	the	the	DT
37894	1009	24	Gulf	Gulf	NNP
37894	1009	25	of	of	IN
37894	1009	26	Mexico	Mexico	NNP
37894	1009	27	must	must	MD
37894	1009	28	carry	carry	VB
37894	1009	29	the	the	DT
37894	1009	30	major	major	JJ
37894	1009	31	part	part	NN
37894	1009	32	of	of	IN
37894	1009	33	the	the	DT
37894	1009	34	traffic	traffic	NN
37894	1009	35	if	if	IN
37894	1009	36	migratory	migratory	JJ
37894	1009	37	flights	flight	NNS
37894	1009	38	back	back	RB
37894	1009	39	to	to	IN
37894	1009	40	the	the	DT
37894	1009	41	United	United	NNP
37894	1009	42	States	States	NNP
37894	1009	43	in	in	IN
37894	1009	44	spring	spring	NN
37894	1009	45	take	take	NN
37894	1009	46	place	place	NN
37894	1009	47	only	only	RB
37894	1009	48	along	along	IN
37894	1009	49	coastwise	coastwise	NN
37894	1009	50	routes	route	NNS
37894	1009	51	.	.	.
37894	1010	1	Consideration	consideration	NN
37894	1010	2	of	of	IN
37894	1010	3	the	the	DT
37894	1010	4	data	datum	NNS
37894	1010	5	obtained	obtain	VBN
37894	1010	6	in	in	IN
37894	1010	7	Florida	Florida	NNP
37894	1010	8	in	in	IN
37894	1010	9	1948	1948	CD
37894	1010	10	will	will	MD
37894	1010	11	serve	serve	VB
37894	1010	12	to	to	TO
37894	1010	13	emphasize	emphasize	VB
37894	1010	14	the	the	DT
37894	1010	15	point	point	NN
37894	1010	16	.	.	.
37894	1011	1	_	_	NNP
37894	1011	2	Eastern	Eastern	NNP
37894	1011	3	Gulf	Gulf	NNP
37894	1011	4	Area	Area	NNP
37894	1011	5	_	_	NNP
37894	1011	6	At	At	NNP
37894	1011	7	Winter	Winter	NNP
37894	1011	8	Park	Park	NNP
37894	1011	9	,	,	,
37894	1011	10	Florida	Florida	NNP
37894	1011	11	,	,	,
37894	1011	12	seventy	seventy	CD
37894	1011	13	-	-	HYPH
37894	1011	14	seven	seven	CD
37894	1011	15	hours	hour	NNS
37894	1011	16	were	be	VBD
37894	1011	17	spent	spend	VBN
37894	1011	18	at	at	IN
37894	1011	19	the	the	DT
37894	1011	20	telescope	telescope	NN
37894	1011	21	in	in	IN
37894	1011	22	April	April	NNP
37894	1011	23	and	and	CC
37894	1011	24	May.	May	NNP
37894	1012	1	This	this	DT
37894	1012	2	was	be	VBD
37894	1012	3	71	71	CD
37894	1012	4	per	per	IN
37894	1012	5	cent	cent	NN
37894	1012	6	more	more	JJR
37894	1012	7	hours	hour	NNS
37894	1012	8	of	of	IN
37894	1012	9	actual	actual	JJ
37894	1012	10	observation	observation	NN
37894	1012	11	than	than	IN
37894	1012	12	at	at	IN
37894	1012	13	the	the	DT
37894	1012	14	next	next	JJ
37894	1012	15	highest	high	JJS
37894	1012	16	station	station	NN
37894	1012	17	.	.	.
37894	1013	1	Nevertheless	nevertheless	RB
37894	1013	2	,	,	,
37894	1013	3	the	the	DT
37894	1013	4	total	total	JJ
37894	1013	5	seasonal	seasonal	JJ
37894	1013	6	density	density	NN
37894	1013	7	amounted	amount	VBD
37894	1013	8	to	to	IN
37894	1013	9	only	only	RB
37894	1013	10	21,700	21,700	CD
37894	1013	11	birds	bird	NNS
37894	1013	12	.	.	.
37894	1014	1	The	the	DT
37894	1014	2	average	average	JJ
37894	1014	3	hourly	hourly	JJ
37894	1014	4	density	density	NN
37894	1014	5	was	be	VBD
37894	1014	6	only	only	RB
37894	1014	7	300	300	CD
37894	1014	8	birds	bird	NNS
37894	1014	9	,	,	,
37894	1014	10	with	with	IN
37894	1014	11	the	the	DT
37894	1014	12	maximum	maximum	NN
37894	1014	13	for	for	IN
37894	1014	14	any	any	DT
37894	1014	15	one	one	CD
37894	1014	16	hour	hour	NN
37894	1014	17	being	be	VBG
37894	1014	18	2,300	2,300	CD
37894	1014	19	birds	bird	NNS
37894	1014	20	.	.	.
37894	1015	1	In	in	IN
37894	1015	2	contrast	contrast	NN
37894	1015	3	,	,	,
37894	1015	4	forty	forty	CD
37894	1015	5	-	-	HYPH
37894	1015	6	five	five	CD
37894	1015	7	hours	hour	NNS
37894	1015	8	of	of	IN
37894	1015	9	observation	observation	NN
37894	1015	10	at	at	IN
37894	1015	11	Tampico	Tampico	NNP
37894	1015	12	,	,	,
37894	1015	13	Tamaulipas	Tamaulipas	NNP
37894	1015	14	,	,	,
37894	1015	15	in	in	IN
37894	1015	16	March	March	NNP
37894	1015	17	and	and	CC
37894	1015	18	April	April	NNP
37894	1015	19	,	,	,
37894	1015	20	yielded	yield	VBD
37894	1015	21	a	a	DT
37894	1015	22	total	total	JJ
37894	1015	23	station	station	NN
37894	1015	24	density	density	NN
37894	1015	25	of	of	IN
37894	1015	26	140,300	140,300	CD
37894	1015	27	birds	bird	NNS
37894	1015	28	.	.	.
37894	1016	1	At	at	IN
37894	1016	2	the	the	DT
37894	1016	3	latter	latter	JJ
37894	1016	4	place	place	NN
37894	1016	5	,	,	,
37894	1016	6	on	on	IN
37894	1016	7	the	the	DT
37894	1016	8	night	night	NN
37894	1016	9	of	of	IN
37894	1016	10	April	April	NNP
37894	1016	11	23	23	CD
37894	1016	12	-	-	SYM
37894	1016	13	24	24	CD
37894	1016	14	,	,	,
37894	1016	15	almost	almost	RB
37894	1016	16	as	as	IN
37894	1016	17	many	many	JJ
37894	1016	18	birds	bird	NNS
37894	1016	19	passed	pass	VBD
37894	1016	20	_	_	NNP
37894	1016	21	in	in	IN
37894	1016	22	a	a	DT
37894	1016	23	single	single	JJ
37894	1016	24	hour	hour	NN
37894	1016	25	_	_	NNP
37894	1016	26	as	as	IN
37894	1016	27	passed	pass	VBD
37894	1016	28	Winter	Winter	NNP
37894	1016	29	Park	Park	NNP
37894	1016	30	in	in	IN
37894	1016	31	all	all	DT
37894	1016	32	of	of	IN
37894	1016	33	its	-PRON-	PRP$
37894	1016	34	seventy	seventy	CD
37894	1016	35	-	-	HYPH
37894	1016	36	seven	seven	CD
37894	1016	37	hours	hour	NNS
37894	1016	38	of	of	IN
37894	1016	39	observation	observation	NN
37894	1016	40	.	.	.
37894	1017	1	Should	Should	MD
37894	1017	2	future	future	JJ
37894	1017	3	telescopic	telescopic	JJ
37894	1017	4	studies	study	NNS
37894	1017	5	at	at	IN
37894	1017	6	Florida	Florida	NNP
37894	1017	7	stations	station	NNS
37894	1017	8	fail	fail	VBP
37894	1017	9	to	to	TO
37894	1017	10	produce	produce	VB
37894	1017	11	densities	density	NNS
37894	1017	12	appreciably	appreciably	RB
37894	1017	13	higher	high	JJR
37894	1017	14	than	than	IN
37894	1017	15	did	do	VBD
37894	1017	16	Winter	Winter	NNP
37894	1017	17	Park	Park	NNP
37894	1017	18	in	in	IN
37894	1017	19	1948	1948	CD
37894	1017	20	,	,	,
37894	1017	21	the	the	DT
37894	1017	22	currently	currently	RB
37894	1017	23	-	-	HYPH
37894	1017	24	held	hold	VBN
37894	1017	25	ideas	idea	NNS
37894	1017	26	that	that	WDT
37894	1017	27	the	the	DT
37894	1017	28	Florida	Florida	NNP
37894	1017	29	Peninsula	Peninsula	NNP
37894	1017	30	is	be	VBZ
37894	1017	31	a	a	DT
37894	1017	32	major	major	JJ
37894	1017	33	flyway	flyway	NN
37894	1017	34	will	will	MD
37894	1017	35	be	be	VB
37894	1017	36	seriously	seriously	RB
37894	1017	37	shaken	shake	VBN
37894	1017	38	.	.	.
37894	1018	1	But	but	CC
37894	1018	2	one	one	CD
37894	1018	3	consideration	consideration	NN
37894	1018	4	must	must	MD
37894	1018	5	be	be	VB
37894	1018	6	kept	keep	VBN
37894	1018	7	in	in	IN
37894	1018	8	mind	mind	NN
37894	1018	9	regarding	regard	VBG
37894	1018	10	the	the	DT
37894	1018	11	present	present	JJ
37894	1018	12	picture	picture	NN
37894	1018	13	.	.	.
37894	1019	1	No	no	DT
37894	1019	2	observations	observation	NNS
37894	1019	3	were	be	VBD
37894	1019	4	made	make	VBN
37894	1019	5	at	at	IN
37894	1019	6	Winter	Winter	NNP
37894	1019	7	Park	Park	NNP
37894	1019	8	in	in	IN
37894	1019	9	March	March	NNP
37894	1019	10	,	,	,
37894	1019	11	when	when	WRB
37894	1019	12	it	-PRON-	PRP
37894	1019	13	is	be	VBZ
37894	1019	14	conceivable	conceivable	JJ
37894	1019	15	that	that	IN
37894	1019	16	densities	density	NNS
37894	1019	17	may	may	MD
37894	1019	18	have	have	VB
37894	1019	19	been	be	VBN
37894	1019	20	materially	materially	RB
37894	1019	21	higher	high	JJR
37894	1019	22	.	.	.
37894	1020	1	We	-PRON-	PRP
37894	1020	2	know	know	VBP
37894	1020	3	,	,	,
37894	1020	4	for	for	IN
37894	1020	5	instance	instance	NN
37894	1020	6	,	,	,
37894	1020	7	that	that	IN
37894	1020	8	many	many	JJ
37894	1020	9	of	of	IN
37894	1020	10	the	the	DT
37894	1020	11	early	early	JJ
37894	1020	12	migrants	migrant	NNS
37894	1020	13	to	to	IN
37894	1020	14	the	the	DT
37894	1020	15	southern	southern	JJ
37894	1020	16	United	United	NNP
37894	1020	17	States	States	NNP
37894	1020	18	are	be	VBP
37894	1020	19	species	specie	NNS
37894	1020	20	whose	whose	WP$
37894	1020	21	winter	winter	NN
37894	1020	22	homes	home	NNS
37894	1020	23	are	be	VBP
37894	1020	24	in	in	IN
37894	1020	25	the	the	DT
37894	1020	26	West	West	NNP
37894	1020	27	Indies	Indies	NNPS
37894	1020	28	.	.	.
37894	1021	1	Numbers	number	NNS
37894	1021	2	of	of	IN
37894	1021	3	Vireonidae	Vireonidae	NNP
37894	1021	4	and	and	CC
37894	1021	5	Parulidae	Parulidae	NNP
37894	1021	6	(	(	-LRB-
37894	1021	7	notably	notably	RB
37894	1021	8	the	the	DT
37894	1021	9	genera	genera	NN
37894	1021	10	_	_	NNP
37894	1021	11	Vireo	Vireo	NNP
37894	1021	12	_	_	NNP
37894	1021	13	,	,	,
37894	1021	14	_	_	NNP
37894	1021	15	Parula	Parula	NNP
37894	1021	16	_	_	NNP
37894	1021	17	,	,	,
37894	1021	18	_	_	NNP
37894	1021	19	Protonotaria	Protonotaria	NNP
37894	1021	20	_	_	NNP
37894	1021	21	,	,	,
37894	1021	22	_	_	NNP
37894	1021	23	Mniotilta	Mniotilta	NNP
37894	1021	24	_	_	NNP
37894	1021	25	,	,	,
37894	1021	26	_	_	NNP
37894	1021	27	Seiurus	Seiurus	NNP
37894	1021	28	_	_	NNP
37894	1021	29	,	,	,
37894	1021	30	_	_	NNP
37894	1021	31	Geothlypis	Geothlypis	NNP
37894	1021	32	_	_	NNP
37894	1021	33	,	,	,
37894	1021	34	_	_	NNP
37894	1021	35	Setophaga	Setophaga	NNP
37894	1021	36	_	_	NNP
37894	1021	37	,	,	,
37894	1021	38	and	and	CC
37894	1021	39	certain	certain	JJ
37894	1021	40	_	_	NNP
37894	1021	41	Dendroica	Dendroica	NNP
37894	1021	42	_	_	NNP
37894	1021	43	and	and	CC
37894	1021	44	_	_	NNP
37894	1021	45	Vermivora	Vermivora	NNP
37894	1021	46	_	_	NNP
37894	1021	47	)	)	-RRB-
37894	1021	48	winter	winter	NN
37894	1021	49	extensively	extensively	RB
37894	1021	50	in	in	IN
37894	1021	51	this	this	DT
37894	1021	52	region	region	NN
37894	1021	53	and	and	CC
37894	1021	54	are	be	VBP
37894	1021	55	among	among	IN
37894	1021	56	the	the	DT
37894	1021	57	first	first	JJ
37894	1021	58	birds	bird	NNS
37894	1021	59	to	to	TO
37894	1021	60	return	return	VB
37894	1021	61	to	to	IN
37894	1021	62	the	the	DT
37894	1021	63	southern	southern	JJ
37894	1021	64	states	state	NNS
37894	1021	65	in	in	IN
37894	1021	66	the	the	DT
37894	1021	67	spring	spring	NN
37894	1021	68	.	.	.
37894	1022	1	Many	many	JJ
37894	1022	2	of	of	IN
37894	1022	3	them	-PRON-	PRP
37894	1022	4	often	often	RB
37894	1022	5	reach	reach	VBP
37894	1022	6	Louisiana	Louisiana	NNP
37894	1022	7	and	and	CC
37894	1022	8	other	other	JJ
37894	1022	9	states	state	NNS
37894	1022	10	on	on	IN
37894	1022	11	the	the	DT
37894	1022	12	Gulf	Gulf	NNP
37894	1022	13	coastal	coastal	JJ
37894	1022	14	plain	plain	NN
37894	1022	15	by	by	IN
37894	1022	16	mid	mid	NNP
37894	1022	17	-	-	NNP
37894	1022	18	March	March	NNP
37894	1022	19	.	.	.
37894	1023	1	In	in	IN
37894	1023	2	the	the	DT
37894	1023	3	same	same	JJ
37894	1023	4	connection	connection	NN
37894	1023	5	,	,	,
37894	1023	6	it	-PRON-	PRP
37894	1023	7	may	may	MD
37894	1023	8	be	be	VB
37894	1023	9	mentioned	mention	VBN
37894	1023	10	that	that	IN
37894	1023	11	many	many	JJ
37894	1023	12	of	of	IN
37894	1023	13	the	the	DT
37894	1023	14	outstanding	outstanding	JJ
37894	1023	15	instances	instance	NNS
37894	1023	16	of	of	IN
37894	1023	17	birds	bird	NNS
37894	1023	18	striking	strike	VBG
37894	1023	19	lighthouses	lighthouse	NNS
37894	1023	20	in	in	IN
37894	1023	21	southern	southern	JJ
37894	1023	22	Florida	Florida	NNP
37894	1023	23	occurred	occur	VBD
37894	1023	24	in	in	IN
37894	1023	25	March	March	NNP
37894	1023	26	and	and	CC
37894	1023	27	early	early	JJ
37894	1023	28	April	April	NNP
37894	1023	29	(	(	-LRB-
37894	1023	30	Howell	Howell	NNP
37894	1023	31	,	,	,
37894	1023	32	1932	1932	CD
37894	1023	33	)	)	-RRB-
37894	1023	34	.	.	.
37894	1024	1	_	_	NNP
37894	1024	2	Yucatán	Yucatán	NNP
37894	1024	3	Area	Area	NNP
37894	1024	4	_	_	NNP
37894	1024	5	I	-PRON-	PRP
37894	1024	6	have	have	VBP
37894	1024	7	long	long	RB
37894	1024	8	felt	feel	VBN
37894	1024	9	that	that	IN
37894	1024	10	the	the	DT
37894	1024	11	answers	answer	NNS
37894	1024	12	to	to	IN
37894	1024	13	many	many	JJ
37894	1024	14	of	of	IN
37894	1024	15	the	the	DT
37894	1024	16	questions	question	NNS
37894	1024	17	which	which	WDT
37894	1024	18	beset	beset	VBP
37894	1024	19	us	-PRON-	PRP
37894	1024	20	in	in	IN
37894	1024	21	our	-PRON-	PRP$
37894	1024	22	study	study	NN
37894	1024	23	of	of	IN
37894	1024	24	Gulf	Gulf	NNP
37894	1024	25	migration	migration	NN
37894	1024	26	are	be	VBP
37894	1024	27	to	to	TO
37894	1024	28	be	be	VB
37894	1024	29	found	find	VBN
37894	1024	30	on	on	IN
37894	1024	31	the	the	DT
37894	1024	32	open	open	JJ
37894	1024	33	waters	water	NNS
37894	1024	34	of	of	IN
37894	1024	35	the	the	DT
37894	1024	36	Gulf	Gulf	NNP
37894	1024	37	of	of	IN
37894	1024	38	Mexico	Mexico	NNP
37894	1024	39	itself	-PRON-	PRP
37894	1024	40	or	or	CC
37894	1024	41	on	on	IN
37894	1024	42	the	the	DT
37894	1024	43	northern	northern	JJ
37894	1024	44	tip	tip	NN
37894	1024	45	of	of	IN
37894	1024	46	the	the	DT
37894	1024	47	Yucatán	Yucatán	NNP
37894	1024	48	Peninsula	Peninsula	NNP
37894	1024	49	.	.	.
37894	1025	1	Accordingly	accordingly	RB
37894	1025	2	,	,	,
37894	1025	3	in	in	IN
37894	1025	4	the	the	DT
37894	1025	5	spring	spring	NN
37894	1025	6	of	of	IN
37894	1025	7	1945	1945	CD
37894	1025	8	I	-PRON-	PRP
37894	1025	9	crossed	cross	VBD
37894	1025	10	the	the	DT
37894	1025	11	Gulf	Gulf	NNP
37894	1025	12	by	by	IN
37894	1025	13	slow	slow	JJ
37894	1025	14	freighter	freighter	NN
37894	1025	15	for	for	IN
37894	1025	16	the	the	DT
37894	1025	17	purpose	purpose	NN
37894	1025	18	of	of	IN
37894	1025	19	determining	determine	VBG
37894	1025	20	how	how	WRB
37894	1025	21	many	many	JJ
37894	1025	22	and	and	CC
37894	1025	23	what	what	WDT
37894	1025	24	kinds	kind	NNS
37894	1025	25	of	of	IN
37894	1025	26	birds	bird	NNS
37894	1025	27	might	may	MD
37894	1025	28	be	be	VB
37894	1025	29	seen	see	VBN
37894	1025	30	between	between	IN
37894	1025	31	the	the	DT
37894	1025	32	mouth	mouth	NN
37894	1025	33	of	of	IN
37894	1025	34	the	the	DT
37894	1025	35	Mississippi	Mississippi	NNP
37894	1025	36	River	River	NNP
37894	1025	37	and	and	CC
37894	1025	38	the	the	DT
37894	1025	39	Yucatán	Yucatán	NNP
37894	1025	40	Peninsula	Peninsula	NNP
37894	1025	41	in	in	IN
37894	1025	42	fair	fair	JJ
37894	1025	43	weather	weather	NN
37894	1025	44	,	,	,
37894	1025	45	when	when	WRB
37894	1025	46	it	-PRON-	PRP
37894	1025	47	could	could	MD
37894	1025	48	not	not	RB
37894	1025	49	be	be	VB
37894	1025	50	argued	argue	VBN
37894	1025	51	that	that	IN
37894	1025	52	the	the	DT
37894	1025	53	birds	bird	NNS
37894	1025	54	had	have	VBD
37894	1025	55	been	be	VBN
37894	1025	56	blown	blow	VBN
37894	1025	57	there	there	RB
37894	1025	58	by	by	IN
37894	1025	59	inclement	inclement	JJ
37894	1025	60	weather	weather	NN
37894	1025	61	.	.	.
37894	1026	1	To	to	IN
37894	1026	2	my	-PRON-	PRP$
37894	1026	3	own	own	JJ
37894	1026	4	observations	observation	NNS
37894	1026	5	I	-PRON-	PRP
37894	1026	6	was	be	VBD
37894	1026	7	able	able	JJ
37894	1026	8	to	to	TO
37894	1026	9	add	add	VB
37894	1026	10	those	those	DT
37894	1026	11	of	of	IN
37894	1026	12	other	other	JJ
37894	1026	13	ornithologists	ornithologist	NNS
37894	1026	14	who	who	WP
37894	1026	15	likewise	likewise	RB
37894	1026	16	had	have	VBD
37894	1026	17	been	be	VBN
37894	1026	18	aboard	aboard	IN
37894	1026	19	ship	ship	NN
37894	1026	20	in	in	IN
37894	1026	21	the	the	DT
37894	1026	22	Gulf	Gulf	NNP
37894	1026	23	.	.	.
37894	1027	1	The	the	DT
37894	1027	2	summary	summary	NN
37894	1027	3	of	of	IN
37894	1027	4	results	result	NNS
37894	1027	5	proved	prove	VBD
37894	1027	6	that	that	IN
37894	1027	7	birds	bird	NNS
37894	1027	8	of	of	IN
37894	1027	9	many	many	JJ
37894	1027	10	species	specie	NNS
37894	1027	11	cross	cross	VBP
37894	1027	12	the	the	DT
37894	1027	13	Gulf	Gulf	NNP
37894	1027	14	and	and	CC
37894	1027	15	do	do	VB
37894	1027	16	so	so	RB
37894	1027	17	frequently	frequently	RB
37894	1027	18	.	.	.
37894	1028	1	It	-PRON-	PRP
37894	1028	2	failed	fail	VBD
37894	1028	3	to	to	TO
37894	1028	4	demonstrate	demonstrate	VB
37894	1028	5	beyond	beyond	IN
37894	1028	6	all	all	DT
37894	1028	7	doubt	doubt	NN
37894	1028	8	that	that	IN
37894	1028	9	they	-PRON-	PRP
37894	1028	10	do	do	VBP
37894	1028	11	so	so	RB
37894	1028	12	in	in	IN
37894	1028	13	large	large	JJ
37894	1028	14	numbers	number	NNS
37894	1028	15	.	.	.
37894	1029	1	Nor	nor	CC
37894	1029	2	had	have	VBD
37894	1029	3	I	-PRON-	PRP
37894	1029	4	expected	expect	VBN
37894	1029	5	it	-PRON-	PRP
37894	1029	6	to	to	TO
37894	1029	7	do	do	VB
37894	1029	8	so	so	RB
37894	1029	9	.	.	.
37894	1030	1	The	the	DT
37894	1030	2	consensus	consensus	NN
37894	1030	3	of	of	IN
37894	1030	4	Gulf	Gulf	NNP
37894	1030	5	coast	coast	NN
37894	1030	6	ornithologists	ornithologist	NNS
37894	1030	7	seemed	seem	VBD
37894	1030	8	to	to	TO
37894	1030	9	be	be	VB
37894	1030	10	that	that	IN
37894	1030	11	transient	transient	JJ
37894	1030	12	migration	migration	NN
37894	1030	13	in	in	IN
37894	1030	14	their	-PRON-	PRP$
37894	1030	15	respective	respective	JJ
37894	1030	16	regions	region	NNS
37894	1030	17	is	be	VBZ
37894	1030	18	often	often	RB
37894	1030	19	performed	perform	VBN
37894	1030	20	at	at	IN
37894	1030	21	too	too	RB
37894	1030	22	high	high	JJ
37894	1030	23	an	an	DT
37894	1030	24	elevation	elevation	NN
37894	1030	25	to	to	TO
37894	1030	26	be	be	VB
37894	1030	27	detected	detect	VBN
37894	1030	28	unless	unless	IN
37894	1030	29	the	the	DT
37894	1030	30	birds	bird	NNS
37894	1030	31	are	be	VBP
37894	1030	32	forced	force	VBN
37894	1030	33	to	to	IN
37894	1030	34	earth	earth	NN
37894	1030	35	by	by	IN
37894	1030	36	bad	bad	JJ
37894	1030	37	weather	weather	NN
37894	1030	38	.	.	.
37894	1031	1	I	-PRON-	PRP
37894	1031	2	saw	see	VBD
37894	1031	3	no	no	DT
37894	1031	4	reason	reason	NN
37894	1031	5	to	to	TO
37894	1031	6	anticipate	anticipate	VB
37894	1031	7	that	that	IN
37894	1031	8	the	the	DT
37894	1031	9	results	result	NNS
37894	1031	10	would	would	MD
37894	1031	11	be	be	VB
37894	1031	12	otherwise	otherwise	RB
37894	1031	13	over	over	IN
37894	1031	14	the	the	DT
37894	1031	15	waters	water	NNS
37894	1031	16	of	of	IN
37894	1031	17	the	the	DT
37894	1031	18	Gulf	Gulf	NNP
37894	1031	19	of	of	IN
37894	1031	20	Mexico	Mexico	NNP
37894	1031	21	.	.	.
37894	1032	1	The	the	DT
37894	1032	2	application	application	NN
37894	1032	3	of	of	IN
37894	1032	4	the	the	DT
37894	1032	5	telescopic	telescopic	JJ
37894	1032	6	method	method	NN
37894	1032	7	held	hold	VBN
37894	1032	8	promise	promise	NN
37894	1032	9	of	of	IN
37894	1032	10	supplying	supply	VBG
37894	1032	11	definite	definite	JJ
37894	1032	12	data	datum	NNS
37894	1032	13	on	on	IN
37894	1032	14	the	the	DT
37894	1032	15	numbers	number	NNS
37894	1032	16	of	of	IN
37894	1032	17	trans	trans	JJ
37894	1032	18	-	-	NNP
37894	1032	19	Gulf	Gulf	NNP
37894	1032	20	migrants	migrant	NNS
37894	1032	21	,	,	,
37894	1032	22	however	however	RB
37894	1032	23	high	high	JJ
37894	1032	24	their	-PRON-	PRP$
37894	1032	25	flight	flight	NN
37894	1032	26	levels	level	NNS
37894	1032	27	.	.	.
37894	1033	1	The	the	DT
37894	1033	2	roll	roll	NN
37894	1033	3	and	and	CC
37894	1033	4	vibration	vibration	NN
37894	1033	5	of	of	IN
37894	1033	6	the	the	DT
37894	1033	7	ship	ship	NN
37894	1033	8	had	have	VBD
37894	1033	9	prevented	prevent	VBN
37894	1033	10	me	-PRON-	PRP
37894	1033	11	in	in	IN
37894	1033	12	1945	1945	CD
37894	1033	13	from	from	IN
37894	1033	14	making	make	VBG
37894	1033	15	telescopic	telescopic	JJ
37894	1033	16	observations	observation	NNS
37894	1033	17	at	at	IN
37894	1033	18	sea	sea	NN
37894	1033	19	.	.	.
37894	1034	1	Since	since	IN
37894	1034	2	no	no	DT
37894	1034	3	immediate	immediate	JJ
37894	1034	4	solution	solution	NN
37894	1034	5	to	to	IN
37894	1034	6	the	the	DT
37894	1034	7	technical	technical	JJ
37894	1034	8	difficulties	difficulty	NNS
37894	1034	9	involved	involve	VBN
37894	1034	10	presented	present	VBD
37894	1034	11	itself	-PRON-	PRP
37894	1034	12	,	,	,
37894	1034	13	I	-PRON-	PRP
37894	1034	14	undertook	undertake	VBD
37894	1034	15	to	to	TO
37894	1034	16	reach	reach	VB
37894	1034	17	one	one	CD
37894	1034	18	of	of	IN
37894	1034	19	the	the	DT
37894	1034	20	small	small	JJ
37894	1034	21	cays	cay	NNS
37894	1034	22	in	in	IN
37894	1034	23	Alacrán	Alacrán	NNP
37894	1034	24	Reef	Reef	NNP
37894	1034	25	,	,	,
37894	1034	26	lying	lie	VBG
37894	1034	27	seventy	seventy	CD
37894	1034	28	-	-	HYPH
37894	1034	29	five	five	CD
37894	1034	30	miles	mile	NNS
37894	1034	31	north	north	RB
37894	1034	32	of	of	IN
37894	1034	33	Yucatán	Yucatán	NNP
37894	1034	34	and	and	CC
37894	1034	35	in	in	IN
37894	1034	36	line	line	NN
37894	1034	37	with	with	IN
37894	1034	38	the	the	DT
37894	1034	39	coast	coast	NN
37894	1034	40	of	of	IN
37894	1034	41	southern	southern	JJ
37894	1034	42	Louisiana	Louisiana	NNP
37894	1034	43	.	.	.
37894	1035	1	Because	because	IN
37894	1035	2	of	of	IN
37894	1035	3	transportation	transportation	NN
37894	1035	4	difficulties	difficulty	NNS
37894	1035	5	,	,	,
37894	1035	6	my	-PRON-	PRP$
37894	1035	7	plans	plan	NNS
37894	1035	8	to	to	TO
37894	1035	9	place	place	VB
37894	1035	10	a	a	DT
37894	1035	11	telescopic	telescopic	JJ
37894	1035	12	station	station	NN
37894	1035	13	in	in	IN
37894	1035	14	this	this	DT
37894	1035	15	strategic	strategic	JJ
37894	1035	16	location	location	NN
37894	1035	17	failed	fail	VBD
37894	1035	18	.	.	.
37894	1036	1	Consequently	consequently	RB
37894	1036	2	,	,	,
37894	1036	3	I	-PRON-	PRP
37894	1036	4	returned	return	VBD
37894	1036	5	in	in	IN
37894	1036	6	1948	1948	CD
37894	1036	7	by	by	IN
37894	1036	8	freighter	freighter	NN
37894	1036	9	to	to	IN
37894	1036	10	Progreso	Progreso	NNP
37894	1036	11	,	,	,
37894	1036	12	Yucatán	Yucatán	NNP
37894	1036	13	,	,	,
37894	1036	14	where	where	WRB
37894	1036	15	telescopic	telescopic	NN
37894	1036	16	counts	count	NNS
37894	1036	17	were	be	VBD
37894	1036	18	made	make	VBN
37894	1036	19	for	for	IN
37894	1036	20	three	three	CD
37894	1036	21	nights	night	NNS
37894	1036	22	,	,	,
37894	1036	23	one	one	CD
37894	1036	24	of	of	IN
37894	1036	25	which	which	WDT
37894	1036	26	was	be	VBD
37894	1036	27	rendered	render	VBN
37894	1036	28	almost	almost	RB
37894	1036	29	valueless	valueless	JJ
37894	1036	30	by	by	IN
37894	1036	31	the	the	DT
37894	1036	32	cloud	cloud	NN
37894	1036	33	cover	cover	NN
37894	1036	34	.	.	.
37894	1037	1	[	[	-LRB-
37894	1037	2	Illustration	illustration	NN
37894	1037	3	:	:	:
37894	1037	4	FIG	FIG	NNP
37894	1037	5	.	.	.
37894	1038	1	35	35	CD
37894	1038	2	.	.	.
37894	1039	1	Positions	position	NNS
37894	1039	2	of	of	IN
37894	1039	3	the	the	DT
37894	1039	4	cone	cone	NN
37894	1039	5	of	of	IN
37894	1039	6	observation	observation	NN
37894	1039	7	at	at	IN
37894	1039	8	Progreso	Progreso	NNP
37894	1039	9	,	,	,
37894	1039	10	Yucatán	Yucatán	NNP
37894	1039	11	,	,	,
37894	1039	12	on	on	IN
37894	1039	13	the	the	DT
37894	1039	14	night	night	NN
37894	1039	15	of	of	IN
37894	1039	16	April	April	NNP
37894	1039	17	23	23	CD
37894	1039	18	-	-	SYM
37894	1039	19	24	24	CD
37894	1039	20	,	,	,
37894	1039	21	1948	1948	CD
37894	1039	22	,	,	,
37894	1039	23	from	from	IN
37894	1039	24	8:53	8:53	CD
37894	1039	25	P.	P.	NNP
37894	1039	26	M.	M.	NNP
37894	1039	27	to	to	IN
37894	1039	28	3:53	3:53	CD
37894	1039	29	A.	a.	NN
37894	1039	30	M.	M.	NNP
37894	1039	31	Essential	Essential	NNP
37894	1039	32	features	feature	VBZ
37894	1039	33	of	of	IN
37894	1039	34	this	this	DT
37894	1039	35	map	map	NN
37894	1039	36	are	be	VBP
37894	1039	37	drawn	draw	VBN
37894	1039	38	to	to	TO
37894	1039	39	scale	scale	VB
37894	1039	40	.	.	.
37894	1040	1	The	the	DT
37894	1040	2	telescope	telescope	NN
37894	1040	3	was	be	VBD
37894	1040	4	set	set	VBN
37894	1040	5	up	up	RP
37894	1040	6	on	on	IN
37894	1040	7	the	the	DT
37894	1040	8	end	end	NN
37894	1040	9	of	of	IN
37894	1040	10	a	a	DT
37894	1040	11	one	one	CD
37894	1040	12	-	-	HYPH
37894	1040	13	mile	mile	NN
37894	1040	14	long	long	JJ
37894	1040	15	wharf	wharf	NN
37894	1040	16	that	that	WDT
37894	1040	17	extends	extend	VBZ
37894	1040	18	northward	northward	RB
37894	1040	19	from	from	IN
37894	1040	20	the	the	DT
37894	1040	21	shore	shore	NN
37894	1040	22	over	over	IN
37894	1040	23	the	the	DT
37894	1040	24	waters	water	NNS
37894	1040	25	of	of	IN
37894	1040	26	the	the	DT
37894	1040	27	Gulf	Gulf	NNP
37894	1040	28	of	of	IN
37894	1040	29	Mexico	Mexico	NNP
37894	1040	30	.	.	.
37894	1041	1	The	the	DT
37894	1041	2	triangular	triangular	JJ
37894	1041	3	(	(	-LRB-
37894	1041	4	white	white	NNP
37894	1041	5	)	)	-RRB-
37894	1041	6	lines	line	NNS
37894	1041	7	represent	represent	VBP
37894	1041	8	the	the	DT
37894	1041	9	projections	projection	NNS
37894	1041	10	of	of	IN
37894	1041	11	the	the	DT
37894	1041	12	cone	cone	NN
37894	1041	13	of	of	IN
37894	1041	14	visibility	visibility	NN
37894	1041	15	on	on	IN
37894	1041	16	the	the	DT
37894	1041	17	earth	earth	NN
37894	1041	18	at	at	IN
37894	1041	19	the	the	DT
37894	1041	20	mid	mid	NN
37894	1041	21	-	-	NN
37894	1041	22	point	point	NN
37894	1041	23	of	of	IN
37894	1041	24	each	each	DT
37894	1041	25	hour	hour	NN
37894	1041	26	of	of	IN
37894	1041	27	observation	observation	NN
37894	1041	28	.	.	.
37894	1042	1	Only	only	RB
37894	1042	2	briefly	briefly	RB
37894	1042	3	,	,	,
37894	1042	4	in	in	IN
37894	1042	5	the	the	DT
37894	1042	6	first	first	JJ
37894	1042	7	two	two	CD
37894	1042	8	hours	hour	NNS
37894	1042	9	,	,	,
37894	1042	10	did	do	VBD
37894	1042	11	the	the	DT
37894	1042	12	cone	cone	NN
37894	1042	13	lie	lie	VB
37894	1042	14	even	even	RB
37894	1042	15	in	in	IN
37894	1042	16	part	part	NN
37894	1042	17	over	over	IN
37894	1042	18	the	the	DT
37894	1042	19	adjacent	adjacent	JJ
37894	1042	20	mainland	mainland	NN
37894	1042	21	.	.	.
37894	1043	1	Hence	hence	RB
37894	1043	2	,	,	,
37894	1043	3	nearly	nearly	RB
37894	1043	4	all	all	DT
37894	1043	5	of	of	IN
37894	1043	6	the	the	DT
37894	1043	7	birds	bird	NNS
37894	1043	8	seen	see	VBN
37894	1043	9	in	in	IN
37894	1043	10	the	the	DT
37894	1043	11	course	course	NN
37894	1043	12	of	of	IN
37894	1043	13	the	the	DT
37894	1043	14	night	night	NN
37894	1043	15	had	have	VBD
37894	1043	16	actually	actually	RB
37894	1043	17	left	leave	VBN
37894	1043	18	the	the	DT
37894	1043	19	land	land	NN
37894	1043	20	behind	behind	RB
37894	1043	21	.	.	.
37894	1043	22	]	]	-RRB-
37894	1044	1	The	the	DT
37894	1044	2	observation	observation	NN
37894	1044	3	station	station	NN
37894	1044	4	at	at	IN
37894	1044	5	Progreso	Progreso	NNP
37894	1044	6	was	be	VBD
37894	1044	7	situated	situate	VBN
37894	1044	8	on	on	IN
37894	1044	9	the	the	DT
37894	1044	10	northern	northern	JJ
37894	1044	11	end	end	NN
37894	1044	12	of	of	IN
37894	1044	13	the	the	DT
37894	1044	14	new	new	JJ
37894	1044	15	wharf	wharf	NN
37894	1044	16	which	which	WDT
37894	1044	17	projects	project	VBZ
37894	1044	18	northward	northward	RB
37894	1044	19	from	from	IN
37894	1044	20	the	the	DT
37894	1044	21	beach	beach	NN
37894	1044	22	to	to	IN
37894	1044	23	a	a	DT
37894	1044	24	point	point	NN
37894	1044	25	one	one	CD
37894	1044	26	mile	mile	NN
37894	1044	27	over	over	IN
37894	1044	28	the	the	DT
37894	1044	29	Gulf	Gulf	NNP
37894	1044	30	.	.	.
37894	1045	1	As	as	IN
37894	1045	2	will	will	MD
37894	1045	3	be	be	VB
37894	1045	4	seen	see	VBN
37894	1045	5	from	from	IN
37894	1045	6	Figure	Figure	NNP
37894	1045	7	35	35	CD
37894	1045	8	,	,	,
37894	1045	9	the	the	DT
37894	1045	10	entire	entire	JJ
37894	1045	11	cone	cone	NN
37894	1045	12	of	of	IN
37894	1045	13	observation	observation	NN
37894	1045	14	lay	lie	VBD
37894	1045	15	at	at	IN
37894	1045	16	nearly	nearly	RB
37894	1045	17	all	all	DT
37894	1045	18	times	time	NNS
37894	1045	19	over	over	IN
37894	1045	20	the	the	DT
37894	1045	21	intervening	intervene	VBG
37894	1045	22	water	water	NN
37894	1045	23	between	between	IN
37894	1045	24	the	the	DT
37894	1045	25	telescope	telescope	NN
37894	1045	26	on	on	IN
37894	1045	27	the	the	DT
37894	1045	28	end	end	NN
37894	1045	29	of	of	IN
37894	1045	30	the	the	DT
37894	1045	31	wharf	wharf	NN
37894	1045	32	and	and	CC
37894	1045	33	the	the	DT
37894	1045	34	beach	beach	NN
37894	1045	35	.	.	.
37894	1046	1	Therefore	therefore	RB
37894	1046	2	,	,	,
37894	1046	3	nearly	nearly	RB
37894	1046	4	all	all	DT
37894	1046	5	of	of	IN
37894	1046	6	the	the	DT
37894	1046	7	birds	bird	NNS
37894	1046	8	seen	see	VBN
37894	1046	9	were	be	VBD
37894	1046	10	actually	actually	RB
37894	1046	11	observed	observe	VBN
37894	1046	12	leaving	leave	VBG
37894	1046	13	the	the	DT
37894	1046	14	coast	coast	NN
37894	1046	15	and	and	CC
37894	1046	16	passing	pass	VBG
37894	1046	17	out	out	RP
37894	1046	18	over	over	IN
37894	1046	19	the	the	DT
37894	1046	20	open	open	JJ
37894	1046	21	waters	water	NNS
37894	1046	22	of	of	IN
37894	1046	23	the	the	DT
37894	1046	24	Gulf	Gulf	NNP
37894	1046	25	.	.	.
37894	1047	1	The	the	DT
37894	1047	2	hourly	hourly	JJ
37894	1047	3	station	station	NN
37894	1047	4	densities	density	NNS
37894	1047	5	are	be	VBP
37894	1047	6	shown	show	VBN
37894	1047	7	in	in	IN
37894	1047	8	Table	table	NN
37894	1047	9	7	7	CD
37894	1047	10	and	and	CC
37894	1047	11	Figures	figure	NNS
37894	1047	12	24	24	CD
37894	1047	13	and	and	CC
37894	1047	14	36	36	CD
37894	1047	15	.	.	.
37894	1048	1	In	in	IN
37894	1048	2	the	the	DT
37894	1048	3	seventeen	seventeen	CD
37894	1048	4	hours	hour	NNS
37894	1048	5	of	of	IN
37894	1048	6	observation	observation	NN
37894	1048	7	on	on	IN
37894	1048	8	the	the	DT
37894	1048	9	nights	night	NNS
37894	1048	10	of	of	IN
37894	1048	11	April	April	NNP
37894	1048	12	23	23	CD
37894	1048	13	-	-	SYM
37894	1048	14	24	24	CD
37894	1048	15	and	and	CC
37894	1048	16	April	April	NNP
37894	1048	17	24	24	CD
37894	1048	18	-	-	SYM
37894	1048	19	25	25	CD
37894	1048	20	,	,	,
37894	1048	21	a	a	DT
37894	1048	22	total	total	JJ
37894	1048	23	computed	computed	JJ
37894	1048	24	density	density	NN
37894	1048	25	of	of	IN
37894	1048	26	59,200	59,200	CD
37894	1048	27	birds	bird	NNS
37894	1048	28	passed	pass	VBN
37894	1048	29	within	within	IN
37894	1048	30	one	one	CD
37894	1048	31	-	-	HYPH
37894	1048	32	half	half	NN
37894	1048	33	mile	mile	NN
37894	1048	34	of	of	IN
37894	1048	35	each	each	DT
37894	1048	36	side	side	NN
37894	1048	37	of	of	IN
37894	1048	38	Progreso	Progreso	NNP
37894	1048	39	.	.	.
37894	1049	1	This	this	DT
37894	1049	2	is	be	VBZ
37894	1049	3	the	the	DT
37894	1049	4	third	third	RB
37894	1049	5	highest	high	JJS
37894	1049	6	density	density	NN
37894	1049	7	recorded	record	VBN
37894	1049	8	in	in	IN
37894	1049	9	the	the	DT
37894	1049	10	course	course	NN
37894	1049	11	of	of	IN
37894	1049	12	this	this	DT
37894	1049	13	study	study	NN
37894	1049	14	.	.	.
37894	1050	1	The	the	DT
37894	1050	2	maximum	maximum	NN
37894	1050	3	for	for	IN
37894	1050	4	one	one	CD
37894	1050	5	hour	hour	NN
37894	1050	6	was	be	VBD
37894	1050	7	a	a	DT
37894	1050	8	computed	computed	JJ
37894	1050	9	density	density	NN
37894	1050	10	of	of	IN
37894	1050	11	11,900	11,900	CD
37894	1050	12	birds	bird	NNS
37894	1050	13	.	.	.
37894	1051	1	This	this	DT
37894	1051	2	is	be	VBZ
37894	1051	3	the	the	DT
37894	1051	4	fourth	fourth	RB
37894	1051	5	highest	high	JJS
37894	1051	6	hourly	hourly	JJ
37894	1051	7	density	density	NN
37894	1051	8	recorded	record	VBN
37894	1051	9	in	in	IN
37894	1051	10	1948	1948	CD
37894	1051	11	.	.	.
37894	1052	1	[	[	-LRB-
37894	1052	2	Illustration	illustration	NN
37894	1052	3	:	:	:
37894	1052	4	FIG	FIG	NNP
37894	1052	5	.	.	.
37894	1053	1	36	36	CD
37894	1053	2	.	.	.
37894	1054	1	Hourly	hourly	JJ
37894	1054	2	station	station	NN
37894	1054	3	density	density	NN
37894	1054	4	curve	curve	NN
37894	1054	5	for	for	IN
37894	1054	6	night	night	NN
37894	1054	7	of	of	IN
37894	1054	8	April	April	NNP
37894	1054	9	23	23	CD
37894	1054	10	-	-	SYM
37894	1054	11	24	24	CD
37894	1054	12	,	,	,
37894	1054	13	1948	1948	CD
37894	1054	14	,	,	,
37894	1054	15	at	at	IN
37894	1054	16	Progreso	Progreso	NNP
37894	1054	17	,	,	,
37894	1054	18	Yucatán	Yucatán	NNP
37894	1054	19	.	.	.
37894	1054	20	]	]	-RRB-
37894	1055	1	TABLE	TABLE	NNP
37894	1055	2	7.--Computed	7.--compute	VBD
37894	1055	3	Hourly	hourly	JJ
37894	1055	4	Densities	density	NNS
37894	1055	5	at	at	IN
37894	1055	6	Progreso	Progreso	NNP
37894	1055	7	,	,	,
37894	1055	8	Yuc	Yuc	NNP
37894	1055	9	.	.	.
37894	1055	10	,	,	,
37894	1055	11	in	in	IN
37894	1055	12	Spring	Spring	NNP
37894	1055	13	of	of	IN
37894	1055	14	1948	1948	CD
37894	1055	15	=	=	SYM
37894	1055	16	=	=	SYM
37894	1055	17	=	=	SYM
37894	1055	18	=	=	SYM
37894	1055	19	=	=	SYM
37894	1055	20	=	=	SYM
37894	1055	21	=	=	SYM
37894	1055	22	=	=	SYM
37894	1055	23	=	=	SYM
37894	1055	24	=	=	NFP
37894	1055	25	=	=	SYM
37894	1055	26	+	+	SYM
37894	1055	27	=	=	SYM
37894	1055	28	=	=	SYM
37894	1055	29	=	=	SYM
37894	1055	30	=	=	SYM
37894	1055	31	=	=	SYM
37894	1055	32	=	=	SYM
37894	1055	33	=	=	SYM
37894	1055	34	=	=	SYM
37894	1055	35	=	=	SYM
37894	1055	36	=	=	SYM
37894	1055	37	=	=	SYM
37894	1055	38	=	=	SYM
37894	1055	39	=	=	SYM
37894	1055	40	=	=	SYM
37894	1055	41	=	=	SYM
37894	1055	42	=	=	SYM
37894	1055	43	=	=	SYM
37894	1055	44	=	=	SYM
37894	1055	45	=	=	SYM
37894	1055	46	=	=	SYM
37894	1055	47	=	=	SYM
37894	1055	48	=	=	SYM
37894	1055	49	=	=	SYM
37894	1055	50	=	=	SYM
37894	1055	51	=	=	SYM
37894	1055	52	=	=	SYM
37894	1055	53	=	=	SYM
37894	1055	54	=	=	SYM
37894	1055	55	=	=	SYM
37894	1055	56	=	=	SYM
37894	1055	57	=	=	SYM
37894	1055	58	=	=	SYM
37894	1055	59	=	=	SYM
37894	1055	60	=	=	SYM
37894	1055	61	=	=	SYM
37894	1055	62	=	=	SYM
37894	1055	63	=	=	SYM
37894	1055	64	=	=	SYM
37894	1055	65	=	=	SYM
37894	1055	66	=	=	SYM
37894	1055	67	=	=	SYM
37894	1055	68	=	=	SYM
37894	1055	69	=	=	SYM
37894	1055	70	=	=	SYM
37894	1055	71	=	=	SYM
37894	1055	72	=	=	SYM
37894	1055	73	=	=	SYM
37894	1055	74	=	=	SYM
37894	1055	75	=	=	SYM
37894	1055	76	=	=	SYM
37894	1055	77	=	=	SYM
37894	1055	78	=	=	SYM
37894	1055	79	=	=	SYM
37894	1055	80	=	=	SYM
37894	1055	81	=	=	SYM
37894	1055	82	=	=	SYM
37894	1055	83	=	=	SYM
37894	1055	84	=	=	SYM
37894	1055	85	=	=	SYM
37894	1055	86	=	=	SYM
37894	1055	87	|	|	NNP
37894	1055	88	Average	average	JJ
37894	1055	89	hour	hour	NN
37894	1055	90	of	of	IN
37894	1055	91	observation	observation	NN
37894	1055	92	DATE	DATE	NNP
37894	1055	93	+	+	SYM
37894	1055	94	-----+------+------+-------+------+------+------+-----+-----	-----+------+------+-------+------+------+------+-----+-----	NFP
37894	1055	95	|8:30	|8:30	NN
37894	1055	96	|	|	CD
37894	1055	97	9:30	9:30	CD
37894	1055	98	|10:30	|10:30	NNP
37894	1055	99	|	|	CD
37894	1055	100	11:30	11:30	CD
37894	1055	101	|12:30	|12:30	CD
37894	1055	102	|	|	CD
37894	1055	103	1:30	1:30	CD
37894	1055	104	|	|	CD
37894	1055	105	2:30	2:30	CD
37894	1055	106	|3:30	|3:30	NN
37894	1055	107	|4:30	|4:30	JJ
37894	1055	108	-----------+-----+------+------+-------+------+------+------+-----+-----	-----------+-----+------+------+-------+------+------+------+-----+-----	:
37894	1055	109	23	23	CD
37894	1055	110	-	-	HYPH
37894	1055	111	24	24	CD
37894	1055	112	April|	april|	SYM
37894	1055	113	400	400	CD
37894	1055	114	|3,000	|3,000	NN
37894	1055	115	|5,100	|5,100	NNS
37894	1055	116	|10,000	|10,000	IN
37894	1055	117	|9,000	|9,000	NNP
37894	1055	118	|2,800	|2,800	NNP
37894	1055	119	|	|	NNP
37894	1055	120	900	900	CD
37894	1055	121	|	|	CD
37894	1055	122	400	400	CD
37894	1055	123	|	|	CD
37894	1055	124	....	....	.
37894	1055	125	24	24	CD
37894	1055	126	-	-	SYM
37894	1055	127	25	25	CD
37894	1055	128	April|	april|	SYM
37894	1055	129	0	0	CD
37894	1055	130	|	|	CD
37894	1055	131	500	500	CD
37894	1055	132	|3,700	|3,700	CD
37894	1055	133	|11,900	|11,900	UH
37894	1055	134	|7,900	|7,900	UH
37894	1055	135	|1,900	|1,900	UH
37894	1055	136	|1,100	|1,100	VBZ
37894	1055	137	|	|	CD
37894	1055	138	400	400	CD
37894	1055	139	|	|	CD
37894	1055	140	200	200	CD
37894	1055	141	-----------+-----+------+------+-------+------+------+------+-----+-----	-----------+-----+------+------+-------+------+------+------+-----+-----	.
37894	1055	142	It	-PRON-	PRP
37894	1055	143	is	be	VBZ
37894	1055	144	not	not	RB
37894	1055	145	my	-PRON-	PRP$
37894	1055	146	contention	contention	NN
37894	1055	147	that	that	IN
37894	1055	148	this	this	DT
37894	1055	149	many	many	JJ
37894	1055	150	birds	bird	NNS
37894	1055	151	leave	leave	VBP
37894	1055	152	the	the	DT
37894	1055	153	northern	northern	JJ
37894	1055	154	coast	coast	NN
37894	1055	155	of	of	IN
37894	1055	156	Yucatán	Yucatán	NNP
37894	1055	157	every	every	DT
37894	1055	158	night	night	NN
37894	1055	159	in	in	IN
37894	1055	160	spring	spring	NN
37894	1055	161	.	.	.
37894	1056	1	Indeed	indeed	RB
37894	1056	2	,	,	,
37894	1056	3	further	further	JJ
37894	1056	4	studies	study	NNS
37894	1056	5	may	may	MD
37894	1056	6	show	show	VB
37894	1056	7	negligible	negligible	JJ
37894	1056	8	flight	flight	NN
37894	1056	9	densities	density	NNS
37894	1056	10	on	on	IN
37894	1056	11	some	some	DT
37894	1056	12	nights	night	NNS
37894	1056	13	and	and	CC
37894	1056	14	even	even	RB
37894	1056	15	greater	great	JJR
37894	1056	16	densities	density	NNS
37894	1056	17	on	on	IN
37894	1056	18	others	other	NNS
37894	1056	19	.	.	.
37894	1057	1	As	as	IN
37894	1057	2	a	a	DT
37894	1057	3	matter	matter	NN
37894	1057	4	of	of	IN
37894	1057	5	fact	fact	NN
37894	1057	6	several	several	JJ
37894	1057	7	hours	hour	NNS
37894	1057	8	of	of	IN
37894	1057	9	observation	observation	NN
37894	1057	10	on	on	IN
37894	1057	11	the	the	DT
37894	1057	12	night	night	NN
37894	1057	13	of	of	IN
37894	1057	14	April	April	NNP
37894	1057	15	25	25	CD
37894	1057	16	-	-	SYM
37894	1057	17	26	26	CD
37894	1057	18	,	,	,
37894	1057	19	at	at	IN
37894	1057	20	Mérida	Mérida	NNP
37894	1057	21	,	,	,
37894	1057	22	Yucatán	Yucatán	NNP
37894	1057	23	,	,	,
37894	1057	24	approximately	approximately	RB
37894	1057	25	twenty	twenty	CD
37894	1057	26	-	-	HYPH
37894	1057	27	five	five	CD
37894	1057	28	miles	mile	NNS
37894	1057	29	inland	inland	RB
37894	1057	30	from	from	IN
37894	1057	31	Progreso	Progreso	NNP
37894	1057	32	,	,	,
37894	1057	33	indicated	indicate	VBD
37894	1057	34	that	that	IN
37894	1057	35	on	on	IN
37894	1057	36	this	this	DT
37894	1057	37	night	night	NN
37894	1057	38	the	the	DT
37894	1057	39	density	density	NN
37894	1057	40	overhead	overhead	NN
37894	1057	41	was	be	VBD
37894	1057	42	notably	notably	RB
37894	1057	43	low	low	JJ
37894	1057	44	,	,	,
37894	1057	45	a	a	DT
37894	1057	46	condition	condition	NN
37894	1057	47	possibly	possibly	RB
37894	1057	48	accounted	account	VBD
37894	1057	49	for	for	IN
37894	1057	50	by	by	IN
37894	1057	51	a	a	DT
37894	1057	52	north	north	NN
37894	1057	53	wind	wind	NN
37894	1057	54	of	of	IN
37894	1057	55	10	10	CD
37894	1057	56	mph	mph	NN
37894	1057	57	blowing	blow	VBG
37894	1057	58	at	at	IN
37894	1057	59	2,000	2,000	CD
37894	1057	60	feet	foot	NNS
37894	1057	61	.	.	.
37894	1058	1	I	-PRON-	PRP
37894	1058	2	merely	merely	RB
37894	1058	3	submit	submit	VBP
37894	1058	4	that	that	IN
37894	1058	5	on	on	IN
37894	1058	6	the	the	DT
37894	1058	7	nights	night	NNS
37894	1058	8	of	of	IN
37894	1058	9	April	April	NNP
37894	1058	10	23	23	CD
37894	1058	11	-	-	SYM
37894	1058	12	24	24	CD
37894	1058	13	and	and	CC
37894	1058	14	24	24	CD
37894	1058	15	-	-	SYM
37894	1058	16	25	25	CD
37894	1058	17	,	,	,
37894	1058	18	birds	bird	NNS
37894	1058	19	were	be	VBD
37894	1058	20	leaving	leave	VBG
37894	1058	21	the	the	DT
37894	1058	22	coast	coast	NN
37894	1058	23	of	of	IN
37894	1058	24	Yucatán	Yucatán	NNP
37894	1058	25	_	_	NNP
37894	1058	26	at	at	IN
37894	1058	27	Progreso	Progreso	NNP
37894	1058	28	_	_	NNP
37894	1058	29	at	at	IN
37894	1058	30	the	the	DT
37894	1058	31	rate	rate	NN
37894	1058	32	indicated	indicate	VBD
37894	1058	33	.	.	.
37894	1059	1	But	but	CC
37894	1059	2	,	,	,
37894	1059	3	as	as	IN
37894	1059	4	I	-PRON-	PRP
37894	1059	5	have	have	VBP
37894	1059	6	emphasized	emphasize	VBN
37894	1059	7	in	in	IN
37894	1059	8	this	this	DT
37894	1059	9	paper	paper	NN
37894	1059	10	and	and	CC
37894	1059	11	elsewhere	elsewhere	RB
37894	1059	12	(	(	-LRB-
37894	1059	13	1946	1946	CD
37894	1059	14	:	:	:
37894	1059	15	205	205	CD
37894	1059	16	-	-	SYM
37894	1059	17	206	206	CD
37894	1059	18	)	)	-RRB-
37894	1059	19	,	,	,
37894	1059	20	the	the	DT
37894	1059	21	northern	northern	JJ
37894	1059	22	part	part	NN
37894	1059	23	of	of	IN
37894	1059	24	the	the	DT
37894	1059	25	Yucatán	Yucatán	NNP
37894	1059	26	Peninsula	Peninsula	NNP
37894	1059	27	is	be	VBZ
37894	1059	28	notably	notably	RB
37894	1059	29	unmarked	unmarke	VBN
37894	1059	30	by	by	IN
37894	1059	31	streams	stream	NNS
37894	1059	32	or	or	CC
37894	1059	33	any	any	DT
37894	1059	34	other	other	JJ
37894	1059	35	physiographic	physiographic	JJ
37894	1059	36	features	feature	NNS
37894	1059	37	which	which	WDT
37894	1059	38	birds	bird	NNS
37894	1059	39	might	may	MD
37894	1059	40	follow	follow	VB
37894	1059	41	.	.	.
37894	1060	1	The	the	DT
37894	1060	2	uniformity	uniformity	NN
37894	1060	3	of	of	IN
37894	1060	4	the	the	DT
37894	1060	5	topography	topography	NN
37894	1060	6	for	for	IN
37894	1060	7	many	many	JJ
37894	1060	8	miles	mile	NNS
37894	1060	9	on	on	IN
37894	1060	10	either	either	DT
37894	1060	11	side	side	NN
37894	1060	12	of	of	IN
37894	1060	13	Progreso	Progreso	NNP
37894	1060	14	,	,	,
37894	1060	15	if	if	IN
37894	1060	16	not	not	RB
37894	1060	17	indeed	indeed	RB
37894	1060	18	for	for	IN
37894	1060	19	the	the	DT
37894	1060	20	entire	entire	JJ
37894	1060	21	breadth	breadth	NN
37894	1060	22	of	of	IN
37894	1060	23	the	the	DT
37894	1060	24	Peninsula	Peninsula	NNP
37894	1060	25	,	,	,
37894	1060	26	makes	make	VBZ
37894	1060	27	it	-PRON-	PRP
37894	1060	28	probable	probable	JJ
37894	1060	29	that	that	IN
37894	1060	30	Progreso	progreso	NN
37894	1060	31	is	be	VBZ
37894	1060	32	not	not	RB
37894	1060	33	a	a	DT
37894	1060	34	particularly	particularly	RB
37894	1060	35	favored	favor	VBN
37894	1060	36	spot	spot	NN
37894	1060	37	for	for	IN
37894	1060	38	observing	observe	VBG
37894	1060	39	migration	migration	NN
37894	1060	40	,	,	,
37894	1060	41	and	and	CC
37894	1060	42	that	that	IN
37894	1060	43	it	-PRON-	PRP
37894	1060	44	is	be	VBZ
37894	1060	45	not	not	RB
37894	1060	46	the	the	DT
37894	1060	47	only	only	JJ
37894	1060	48	point	point	NN
37894	1060	49	along	along	IN
37894	1060	50	the	the	DT
37894	1060	51	northern	northern	JJ
37894	1060	52	coast	coast	NN
37894	1060	53	of	of	IN
37894	1060	54	Yucatán	Yucatán	NNP
37894	1060	55	where	where	WRB
37894	1060	56	high	high	JJ
37894	1060	57	flight	flight	NN
37894	1060	58	densities	density	NNS
37894	1060	59	can	can	MD
37894	1060	60	be	be	VB
37894	1060	61	recorded	record	VBN
37894	1060	62	.	.	.
37894	1061	1	This	this	DT
37894	1061	2	probability	probability	NN
37894	1061	3	must	must	MD
37894	1061	4	be	be	VB
37894	1061	5	considered	consider	VBN
37894	1061	6	when	when	WRB
37894	1061	7	comparisons	comparison	NNS
37894	1061	8	are	be	VBP
37894	1061	9	made	make	VBN
37894	1061	10	between	between	IN
37894	1061	11	Progreso	progreso	JJ
37894	1061	12	densities	density	NNS
37894	1061	13	and	and	CC
37894	1061	14	those	those	DT
37894	1061	15	at	at	IN
37894	1061	16	Tampico	Tampico	NNP
37894	1061	17	.	.	.
37894	1062	1	The	the	DT
37894	1062	2	argument	argument	NN
37894	1062	3	could	could	MD
37894	1062	4	be	be	VB
37894	1062	5	advanced	advance	VBN
37894	1062	6	that	that	IN
37894	1062	7	the	the	DT
37894	1062	8	present	present	JJ
37894	1062	9	densities	density	NNS
37894	1062	10	from	from	IN
37894	1062	11	Tampico	Tampico	NNP
37894	1062	12	do	do	VBP
37894	1062	13	not	not	RB
37894	1062	14	sufficiently	sufficiently	RB
37894	1062	15	exceed	exceed	VB
37894	1062	16	those	those	DT
37894	1062	17	at	at	IN
37894	1062	18	Progreso	Progreso	NNP
37894	1062	19	to	to	TO
37894	1062	20	establish	establish	VB
37894	1062	21	the	the	DT
37894	1062	22	coastal	coastal	JJ
37894	1062	23	route	route	NN
37894	1062	24	as	as	IN
37894	1062	25	the	the	DT
37894	1062	26	main	main	JJ
37894	1062	27	avenue	avenue	NN
37894	1062	28	of	of	IN
37894	1062	29	traffic	traffic	NN
37894	1062	30	in	in	IN
37894	1062	31	spring	spring	NN
37894	1062	32	,	,	,
37894	1062	33	since	since	IN
37894	1062	34	there	there	EX
37894	1062	35	is	be	VBZ
37894	1062	36	every	every	DT
37894	1062	37	reason	reason	NN
37894	1062	38	to	to	TO
37894	1062	39	suspect	suspect	VB
37894	1062	40	topography	topography	NN
37894	1062	41	of	of	IN
37894	1062	42	exerting	exert	VBG
37894	1062	43	some	some	DT
37894	1062	44	influence	influence	NN
37894	1062	45	to	to	TO
37894	1062	46	produce	produce	VB
37894	1062	47	a	a	DT
37894	1062	48	channeling	channel	VBG
37894	1062	49	effect	effect	NN
37894	1062	50	in	in	IN
37894	1062	51	eastern	eastern	JJ
37894	1062	52	Mexico	Mexico	NNP
37894	1062	53	.	.	.
37894	1063	1	Here	here	RB
37894	1063	2	the	the	DT
37894	1063	3	coast	coast	NN
37894	1063	4	parallels	parallel	VBZ
37894	1063	5	the	the	DT
37894	1063	6	directional	directional	JJ
37894	1063	7	trend	trend	NN
37894	1063	8	of	of	IN
37894	1063	9	the	the	DT
37894	1063	10	migratory	migratory	NN
37894	1063	11	movement	movement	NN
37894	1063	12	for	for	IN
37894	1063	13	more	more	JJR
37894	1063	14	than	than	IN
37894	1063	15	600	600	CD
37894	1063	16	miles	mile	NNS
37894	1063	17	.	.	.
37894	1064	1	Likewise	likewise	RB
37894	1064	2	the	the	DT
37894	1064	3	Sierra	Sierra	NNP
37894	1064	4	Madre	Madre	NNP
37894	1064	5	Oriental	Oriental	NNP
37894	1064	6	of	of	IN
37894	1064	7	eastern	eastern	JJ
37894	1064	8	Mexico	Mexico	NNP
37894	1064	9	,	,	,
37894	1064	10	situated	situate	VBD
37894	1064	11	approximately	approximately	RB
37894	1064	12	100	100	CD
37894	1064	13	miles	mile	NNS
37894	1064	14	inland	inland	RB
37894	1064	15	(	(	-LRB-
37894	1064	16	sometimes	sometimes	RB
37894	1064	17	less	less	JJR
37894	1064	18	)	)	-RRB-
37894	1064	19	,	,	,
37894	1064	20	lies	lie	VBZ
37894	1064	21	roughly	roughly	RB
37894	1064	22	parallel	parallel	JJ
37894	1064	23	to	to	IN
37894	1064	24	the	the	DT
37894	1064	25	coast	coast	NN
37894	1064	26	.	.	.
37894	1065	1	Because	because	IN
37894	1065	2	of	of	IN
37894	1065	3	the	the	DT
37894	1065	4	slant	slant	NN
37894	1065	5	of	of	IN
37894	1065	6	the	the	DT
37894	1065	7	Mexican	mexican	JJ
37894	1065	8	land	land	NN
37894	1065	9	mass	mass	NN
37894	1065	10	,	,	,
37894	1065	11	many	many	JJ
37894	1065	12	winter	winter	NN
37894	1065	13	residents	resident	NNS
37894	1065	14	in	in	IN
37894	1065	15	southern	southern	JJ
37894	1065	16	Mexico	Mexico	NNP
37894	1065	17	,	,	,
37894	1065	18	by	by	IN
37894	1065	19	short	short	JJ
37894	1065	20	northward	northward	NN
37894	1065	21	movements	movement	NNS
37894	1065	22	,	,	,
37894	1065	23	would	would	MD
37894	1065	24	sooner	sooner	RB
37894	1065	25	or	or	CC
37894	1065	26	later	later	RB
37894	1065	27	filter	filter	VB
37894	1065	28	into	into	IN
37894	1065	29	the	the	DT
37894	1065	30	coastal	coastal	JJ
37894	1065	31	plain	plain	NN
37894	1065	32	.	.	.
37894	1066	1	Once	once	IN
37894	1066	2	birds	bird	NNS
37894	1066	3	are	be	VBP
37894	1066	4	shunted	shunt	VBN
37894	1066	5	into	into	IN
37894	1066	6	this	this	DT
37894	1066	7	lowland	lowland	NN
37894	1066	8	area	area	NN
37894	1066	9	,	,	,
37894	1066	10	it	-PRON-	PRP
37894	1066	11	would	would	MD
37894	1066	12	seem	seem	VB
37894	1066	13	unlikely	unlikely	JJ
37894	1066	14	that	that	IN
37894	1066	15	they	-PRON-	PRP
37894	1066	16	would	would	MD
37894	1066	17	again	again	RB
37894	1066	18	ascend	ascend	VB
37894	1066	19	to	to	IN
37894	1066	20	the	the	DT
37894	1066	21	top	top	NN
37894	1066	22	of	of	IN
37894	1066	23	the	the	DT
37894	1066	24	Sierra	Sierra	NNP
37894	1066	25	Madre	Madre	NNP
37894	1066	26	to	to	IN
37894	1066	27	the	the	DT
37894	1066	28	west	west	NN
37894	1066	29	.	.	.
37894	1067	1	In	in	IN
37894	1067	2	this	this	DT
37894	1067	3	way	way	NN
37894	1067	4	the	the	DT
37894	1067	5	great	great	JJ
37894	1067	6	north	north	NNP
37894	1067	7	-	-	HYPH
37894	1067	8	south	south	NN
37894	1067	9	cordillera	cordillera	NN
37894	1067	10	of	of	IN
37894	1067	11	mountains	mountain	NNS
37894	1067	12	may	may	MD
37894	1067	13	act	act	VB
37894	1067	14	as	as	IN
37894	1067	15	a	a	DT
37894	1067	16	western	western	JJ
37894	1067	17	barrier	barrier	NN
37894	1067	18	to	to	IN
37894	1067	19	the	the	DT
37894	1067	20	horizontal	horizontal	JJ
37894	1067	21	dispersion	dispersion	NN
37894	1067	22	of	of	IN
37894	1067	23	transients	transient	NNS
37894	1067	24	bound	bind	VBN
37894	1067	25	for	for	IN
37894	1067	26	eastern	eastern	JJ
37894	1067	27	North	North	NNP
37894	1067	28	America	America	NNP
37894	1067	29	.	.	.
37894	1068	1	Similarly	similarly	RB
37894	1068	2	,	,	,
37894	1068	3	the	the	DT
37894	1068	4	Gulf	Gulf	NNP
37894	1068	5	itself	-PRON-	PRP
37894	1068	6	may	may	MD
37894	1068	7	serve	serve	VB
37894	1068	8	as	as	IN
37894	1068	9	an	an	DT
37894	1068	10	eastern	eastern	JJ
37894	1068	11	barrier	barrier	NN
37894	1068	12	;	;	:
37894	1068	13	for	for	IN
37894	1068	14	,	,	,
37894	1068	15	as	as	RB
37894	1068	16	long	long	RB
37894	1068	17	as	as	IN
37894	1068	18	migrants	migrant	NNS
37894	1068	19	may	may	MD
37894	1068	20	progress	progress	VB
37894	1068	21	northward	northward	RB
37894	1068	22	in	in	IN
37894	1068	23	the	the	DT
37894	1068	24	seasonal	seasonal	JJ
37894	1068	25	direction	direction	NN
37894	1068	26	of	of	IN
37894	1068	27	migration	migration	NN
37894	1068	28	and	and	CC
37894	1068	29	still	still	RB
37894	1068	30	remain	remain	VBP
37894	1068	31	over	over	IN
37894	1068	32	land	land	NN
37894	1068	33	,	,	,
37894	1068	34	I	-PRON-	PRP
37894	1068	35	believe	believe	VBP
37894	1068	36	they	-PRON-	PRP
37894	1068	37	would	would	MD
37894	1068	38	do	do	VB
37894	1068	39	so	so	RB
37894	1068	40	.	.	.
37894	1069	1	To	to	TO
37894	1069	2	put	put	VB
37894	1069	3	the	the	DT
37894	1069	4	matter	matter	NN
37894	1069	5	in	in	IN
37894	1069	6	a	a	DT
37894	1069	7	slightly	slightly	RB
37894	1069	8	different	different	JJ
37894	1069	9	way	way	NN
37894	1069	10	,	,	,
37894	1069	11	the	the	DT
37894	1069	12	idea	idea	NN
37894	1069	13	of	of	IN
37894	1069	14	a	a	DT
37894	1069	15	very	very	RB
37894	1069	16	narrow	narrow	JJ
37894	1069	17	flight	flight	NN
37894	1069	18	lane	lane	NN
37894	1069	19	is	be	VBZ
37894	1069	20	inherent	inherent	JJ
37894	1069	21	in	in	IN
37894	1069	22	the	the	DT
37894	1069	23	idea	idea	NN
37894	1069	24	of	of	IN
37894	1069	25	coastwise	coastwise	JJ
37894	1069	26	migration	migration	NN
37894	1069	27	.	.	.
37894	1070	1	For	for	IN
37894	1070	2	,	,	,
37894	1070	3	as	as	RB
37894	1070	4	soon	soon	RB
37894	1070	5	as	as	IN
37894	1070	6	we	-PRON-	PRP
37894	1070	7	begin	begin	VBP
37894	1070	8	to	to	TO
37894	1070	9	visualize	visualize	VB
37894	1070	10	flights	flight	NNS
37894	1070	11	of	of	IN
37894	1070	12	great	great	JJ
37894	1070	13	volume	volume	NN
37894	1070	14	over	over	IN
37894	1070	15	fronts	front	NNS
37894	1070	16	extending	extend	VBG
37894	1070	17	back	back	RP
37894	1070	18	more	more	RBR
37894	1070	19	than	than	IN
37894	1070	20	fifty	fifty	CD
37894	1070	21	miles	mile	NNS
37894	1070	22	from	from	IN
37894	1070	23	the	the	DT
37894	1070	24	shore	shore	NN
37894	1070	25	line	line	NN
37894	1070	26	,	,	,
37894	1070	27	we	-PRON-	PRP
37894	1070	28	are	be	VBP
37894	1070	29	approaching	approach	VBG
37894	1070	30	,	,	,
37894	1070	31	if	if	IN
37894	1070	32	indeed	indeed	RB
37894	1070	33	we	-PRON-	PRP
37894	1070	34	have	have	VBP
37894	1070	35	not	not	RB
37894	1070	36	already	already	RB
37894	1070	37	passed	pass	VBN
37894	1070	38	,	,	,
37894	1070	39	the	the	DT
37894	1070	40	point	point	NN
37894	1070	41	where	where	WRB
37894	1070	42	the	the	DT
37894	1070	43	phenomenon	phenomenon	NN
37894	1070	44	is	be	VBZ
37894	1070	45	no	no	RB
37894	1070	46	longer	long	RBR
37894	1070	47	coastwise	coastwise	JJ
37894	1070	48	in	in	IN
37894	1070	49	essence	essence	NN
37894	1070	50	,	,	,
37894	1070	51	but	but	CC
37894	1070	52	merely	merely	RB
37894	1070	53	overland	overland	NN
37894	1070	54	(	(	-LRB-
37894	1070	55	as	as	RB
37894	1070	56	indeed	indeed	RB
37894	1070	57	my	-PRON-	PRP$
37894	1070	58	own	own	JJ
37894	1070	59	unprocessed	unprocessed	JJ
37894	1070	60	,	,	,
37894	1070	61	telescopic	telescopic	JJ
37894	1070	62	data	datum	NNS
37894	1070	63	for	for	IN
37894	1070	64	1949	1949	CD
37894	1070	65	indicate	indicate	NN
37894	1070	66	may	may	MD
37894	1070	67	be	be	VB
37894	1070	68	the	the	DT
37894	1070	69	case	case	NN
37894	1070	70	)	)	-RRB-
37894	1070	71	.	.	.
37894	1071	1	In	in	IN
37894	1071	2	actuality	actuality	NN
37894	1071	3	,	,	,
37894	1071	4	those	those	DT
37894	1071	5	who	who	WP
37894	1071	6	have	have	VBP
37894	1071	7	reported	report	VBN
37894	1071	8	on	on	IN
37894	1071	9	the	the	DT
37894	1071	10	migration	migration	NN
37894	1071	11	along	along	IN
37894	1071	12	the	the	DT
37894	1071	13	western	western	JJ
37894	1071	14	edge	edge	NN
37894	1071	15	of	of	IN
37894	1071	16	the	the	DT
37894	1071	17	Gulf	Gulf	NNP
37894	1071	18	of	of	IN
37894	1071	19	Mexico	Mexico	NNP
37894	1071	20	have	have	VBP
37894	1071	21	never	never	RB
37894	1071	22	estimated	estimate	VBN
37894	1071	23	the	the	DT
37894	1071	24	width	width	NN
37894	1071	25	of	of	IN
37894	1071	26	the	the	DT
37894	1071	27	main	main	JJ
37894	1071	28	flight	flight	NN
37894	1071	29	at	at	IN
37894	1071	30	more	more	JJR
37894	1071	31	than	than	IN
37894	1071	32	fifty	fifty	CD
37894	1071	33	miles	mile	NNS
37894	1071	34	and	and	CC
37894	1071	35	have	have	VBP
37894	1071	36	intimated	intimate	VBN
37894	1071	37	that	that	IN
37894	1071	38	under	under	IN
37894	1071	39	some	some	DT
37894	1071	40	circumstances	circumstance	NNS
37894	1071	41	it	-PRON-	PRP
37894	1071	42	may	may	MD
37894	1071	43	be	be	VB
37894	1071	44	as	as	RB
37894	1071	45	narrow	narrow	JJ
37894	1071	46	as	as	IN
37894	1071	47	two	two	CD
37894	1071	48	miles	mile	NNS
37894	1071	49	.	.	.
37894	1072	1	No	no	DT
37894	1072	2	evidence	evidence	NN
37894	1072	3	of	of	IN
37894	1072	4	such	such	JJ
37894	1072	5	restrictions	restriction	NNS
37894	1072	6	can	can	MD
37894	1072	7	be	be	VB
37894	1072	8	discerned	discern	VBN
37894	1072	9	in	in	IN
37894	1072	10	the	the	DT
37894	1072	11	case	case	NN
37894	1072	12	of	of	IN
37894	1072	13	the	the	DT
37894	1072	14	trans	trans	NNP
37894	1072	15	-	-	NNP
37894	1072	16	Gulf	Gulf	NNP
37894	1072	17	flights	flight	NNS
37894	1072	18	.	.	.
37894	1073	1	If	if	IN
37894	1073	2	it	-PRON-	PRP
37894	1073	3	can	can	MD
37894	1073	4	not	not	RB
37894	1073	5	be	be	VB
37894	1073	6	said	say	VBN
37894	1073	7	that	that	IN
37894	1073	8	they	-PRON-	PRP
37894	1073	9	may	may	MD
37894	1073	10	be	be	VB
37894	1073	11	assumed	assume	VBN
37894	1073	12	to	to	TO
37894	1073	13	be	be	VB
37894	1073	14	as	as	RB
37894	1073	15	wide	wide	JJ
37894	1073	16	as	as	IN
37894	1073	17	the	the	DT
37894	1073	18	Gulf	Gulf	NNP
37894	1073	19	itself	-PRON-	PRP
37894	1073	20	,	,	,
37894	1073	21	they	-PRON-	PRP
37894	1073	22	at	at	IN
37894	1073	23	least	least	JJS
37894	1073	24	have	have	VB
37894	1073	25	the	the	DT
37894	1073	26	potential	potential	JJ
37894	1073	27	breadth	breadth	NN
37894	1073	28	of	of	IN
37894	1073	29	the	the	DT
37894	1073	30	whole	whole	JJ
37894	1073	31	260-mile	260-mile	CD
37894	1073	32	northern	northern	JJ
37894	1073	33	coast	coast	NN
37894	1073	34	of	of	IN
37894	1073	35	the	the	DT
37894	1073	36	Yucatán	Yucatán	NNP
37894	1073	37	Peninsula	Peninsula	NNP
37894	1073	38	.	.	.
37894	1074	1	On	on	IN
37894	1074	2	these	these	DT
37894	1074	3	premises	premise	NNS
37894	1074	4	,	,	,
37894	1074	5	to	to	TO
37894	1074	6	be	be	VB
37894	1074	7	merely	merely	RB
37894	1074	8	equal	equal	JJ
37894	1074	9	in	in	IN
37894	1074	10	total	total	JJ
37894	1074	11	magnitude	magnitude	NN
37894	1074	12	,	,	,
37894	1074	13	the	the	DT
37894	1074	14	coastwise	coastwise	NN
37894	1074	15	flights	flight	NNS
37894	1074	16	must	must	MD
37894	1074	17	exhibit	exhibit	VB
37894	1074	18	,	,	,
37894	1074	19	depending	depend	VBG
37894	1074	20	on	on	IN
37894	1074	21	the	the	DT
37894	1074	22	particular	particular	JJ
37894	1074	23	situation	situation	NN
37894	1074	24	,	,	,
37894	1074	25	from	from	IN
37894	1074	26	five	five	CD
37894	1074	27	to	to	IN
37894	1074	28	130	130	CD
37894	1074	29	times	time	NNS
37894	1074	30	the	the	DT
37894	1074	31	concentrations	concentration	NNS
37894	1074	32	observable	observable	JJ
37894	1074	33	among	among	IN
37894	1074	34	trans	trans	NNP
37894	1074	35	-	-	NNP
37894	1074	36	Gulf	Gulf	NNP
37894	1074	37	migrants	migrant	NNS
37894	1074	38	.	.	.
37894	1075	1	This	this	DT
37894	1075	2	point	point	NN
37894	1075	3	seems	seem	VBZ
37894	1075	4	almost	almost	RB
37894	1075	5	too	too	RB
37894	1075	6	elementary	elementary	JJ
37894	1075	7	to	to	TO
37894	1075	8	mention	mention	VB
37894	1075	9	,	,	,
37894	1075	10	but	but	CC
37894	1075	11	I	-PRON-	PRP
37894	1075	12	have	have	VBP
37894	1075	13	yet	yet	RB
37894	1075	14	to	to	TO
37894	1075	15	find	find	VB
37894	1075	16	anyone	anyone	NN
37894	1075	17	who	who	WP
37894	1075	18	,	,	,
37894	1075	19	in	in	IN
37894	1075	20	comparing	compare	VBG
37894	1075	21	the	the	DT
37894	1075	22	two	two	CD
37894	1075	23	situations	situation	NNS
37894	1075	24	,	,	,
37894	1075	25	takes	take	VBZ
37894	1075	26	it	-PRON-	PRP
37894	1075	27	into	into	IN
37894	1075	28	consideration	consideration	NN
37894	1075	29	.	.	.
37894	1076	1	Judged	judge	VBN
37894	1076	2	in	in	IN
37894	1076	3	this	this	DT
37894	1076	4	light	light	NN
37894	1076	5	,	,	,
37894	1076	6	the	the	DT
37894	1076	7	average	average	JJ
37894	1076	8	hourly	hourly	JJ
37894	1076	9	density	density	NN
37894	1076	10	of	of	IN
37894	1076	11	2,800	2,800	CD
37894	1076	12	birds	bird	NNS
37894	1076	13	at	at	IN
37894	1076	14	Progreso	Progreso	NNP
37894	1076	15	in	in	IN
37894	1076	16	April	April	NNP
37894	1076	17	would	would	MD
37894	1076	18	appear	appear	VB
37894	1076	19	to	to	TO
37894	1076	20	be	be	VB
37894	1076	21	indicative	indicative	JJ
37894	1076	22	of	of	IN
37894	1076	23	many	many	JJ
37894	1076	24	more	more	JJR
37894	1076	25	migrants	migrant	NNS
37894	1076	26	on	on	IN
37894	1076	27	the	the	DT
37894	1076	28	entire	entire	JJ
37894	1076	29	potential	potential	JJ
37894	1076	30	front	front	NN
37894	1076	31	than	than	IN
37894	1076	32	the	the	DT
37894	1076	33	6,300	6,300	CD
37894	1076	34	birds	bird	NNS
37894	1076	35	representing	represent	VBG
37894	1076	36	the	the	DT
37894	1076	37	average	average	JJ
37894	1076	38	hourly	hourly	JJ
37894	1076	39	density	density	NN
37894	1076	40	for	for	IN
37894	1076	41	the	the	DT
37894	1076	42	same	same	JJ
37894	1076	43	month	month	NN
37894	1076	44	at	at	IN
37894	1076	45	Tampico	Tampico	NNP
37894	1076	46	.	.	.
37894	1077	1	That	that	IN
37894	1077	2	the	the	DT
37894	1077	3	Progreso	Progreso	NNP
37894	1077	4	birds	bird	NNS
37894	1077	5	were	be	VBD
37894	1077	6	actually	actually	RB
37894	1077	7	beginning	begin	VBG
37894	1077	8	a	a	DT
37894	1077	9	trans	trans	NNP
37894	1077	10	-	-	NNP
37894	1077	11	Gulf	Gulf	NNP
37894	1077	12	flight	flight	NN
37894	1077	13	seems	seem	VBZ
37894	1077	14	inevitable	inevitable	JJ
37894	1077	15	.	.	.
37894	1078	1	The	the	DT
37894	1078	2	Yucatán	Yucatán	NNP
37894	1078	3	Peninsula	Peninsula	NNP
37894	1078	4	projects	project	VBZ
37894	1078	5	200	200	CD
37894	1078	6	miles	mile	NNS
37894	1078	7	or	or	CC
37894	1078	8	more	more	JJR
37894	1078	9	northward	northward	RB
37894	1078	10	into	into	IN
37894	1078	11	the	the	DT
37894	1078	12	vast	vast	JJ
37894	1078	13	open	open	JJ
37894	1078	14	expanses	expanse	NNS
37894	1078	15	of	of	IN
37894	1078	16	the	the	DT
37894	1078	17	Gulf	Gulf	NNP
37894	1078	18	of	of	IN
37894	1078	19	Mexico	Mexico	NNP
37894	1078	20	and	and	CC
37894	1078	21	the	the	DT
37894	1078	22	Caribbean	Caribbean	NNP
37894	1078	23	Sea	Sea	NNP
37894	1078	24	,	,	,
37894	1078	25	with	with	IN
37894	1078	26	wide	wide	JJ
37894	1078	27	stretches	stretch	NNS
37894	1078	28	of	of	IN
37894	1078	29	water	water	NN
37894	1078	30	on	on	IN
37894	1078	31	either	either	DT
37894	1078	32	side	side	NN
37894	1078	33	.	.	.
37894	1079	1	The	the	DT
37894	1079	2	great	great	JJ
37894	1079	3	majority	majority	NN
37894	1079	4	of	of	IN
37894	1079	5	the	the	DT
37894	1079	6	birds	bird	NNS
37894	1079	7	were	be	VBD
37894	1079	8	observed	observe	VBN
37894	1079	9	_	_	NNP
37894	1079	10	after	after	IN
37894	1079	11	_	_	NNP
37894	1079	12	they	-PRON-	PRP
37894	1079	13	had	have	VBD
37894	1079	14	proceeded	proceed	VBN
37894	1079	15	beyond	beyond	IN
37894	1079	16	the	the	DT
37894	1079	17	northern	northern	JJ
37894	1079	18	edge	edge	NN
37894	1079	19	of	of	IN
37894	1079	20	this	this	DT
37894	1079	21	land	land	NN
37894	1079	22	mass	mass	NN
37894	1079	23	.	.	.
37894	1080	1	Had	have	VBD
37894	1080	2	they	-PRON-	PRP
37894	1080	3	later	later	RB
37894	1080	4	veered	veer	VBD
37894	1080	5	either	either	CC
37894	1080	6	to	to	IN
37894	1080	7	the	the	DT
37894	1080	8	east	east	NN
37894	1080	9	or	or	CC
37894	1080	10	the	the	DT
37894	1080	11	west	west	NNP
37894	1080	12	,	,	,
37894	1080	13	they	-PRON-	PRP
37894	1080	14	would	would	MD
37894	1080	15	have	have	VB
37894	1080	16	been	be	VBN
37894	1080	17	obliged	oblige	VBN
37894	1080	18	to	to	TO
37894	1080	19	travel	travel	VB
37894	1080	20	several	several	JJ
37894	1080	21	hundred	hundred	CD
37894	1080	22	miles	mile	NNS
37894	1080	23	before	before	RB
37894	1080	24	again	again	RB
37894	1080	25	reaching	reach	VBG
37894	1080	26	land	land	NN
37894	1080	27	,	,	,
37894	1080	28	almost	almost	RB
37894	1080	29	as	as	RB
37894	1080	30	far	far	RB
37894	1080	31	as	as	IN
37894	1080	32	the	the	DT
37894	1080	33	distance	distance	NN
37894	1080	34	straight	straight	RB
37894	1080	35	across	across	IN
37894	1080	36	the	the	DT
37894	1080	37	Gulf	Gulf	NNP
37894	1080	38	.	.	.
37894	1081	1	Had	have	VBD
37894	1081	2	they	-PRON-	PRP
37894	1081	3	turned	turn	VBN
37894	1081	4	southward	southward	RB
37894	1081	5	,	,	,
37894	1081	6	some	some	DT
37894	1081	7	individuals	individual	NNS
37894	1081	8	should	should	MD
37894	1081	9	have	have	VB
37894	1081	10	been	be	VBN
37894	1081	11	detected	detect	VBN
37894	1081	12	flying	fly	VBG
37894	1081	13	in	in	IN
37894	1081	14	that	that	DT
37894	1081	15	direction	direction	NN
37894	1081	16	.	.	.
37894	1082	1	As	as	IN
37894	1082	2	can	can	MD
37894	1082	3	be	be	VB
37894	1082	4	seen	see	VBN
37894	1082	5	from	from	IN
37894	1082	6	Figures	Figures	NNP
37894	1082	7	23	23	CD
37894	1082	8	,	,	,
37894	1082	9	42	42	CD
37894	1082	10	,	,	,
37894	1082	11	and	and	CC
37894	1082	12	44	44	CD
37894	1082	13	,	,	,
37894	1082	14	not	not	RB
37894	1082	15	one	one	CD
37894	1082	16	bird	bird	NN
37894	1082	17	observed	observe	VBN
37894	1082	18	was	be	VBD
37894	1082	19	heading	head	VBG
37894	1082	20	south	south	RB
37894	1082	21	of	of	IN
37894	1082	22	east	east	NN
37894	1082	23	or	or	CC
37894	1082	24	south	south	RB
37894	1082	25	of	of	IN
37894	1082	26	west	west	NN
37894	1082	27	on	on	IN
37894	1082	28	either	either	DT
37894	1082	29	night	night	NN
37894	1082	30	.	.	.
37894	1083	1	No	no	DT
37894	1083	2	other	other	JJ
37894	1083	3	single	single	JJ
37894	1083	4	piece	piece	NN
37894	1083	5	of	of	IN
37894	1083	6	evidence	evidence	NN
37894	1083	7	so	so	RB
37894	1083	8	conclusively	conclusively	RB
37894	1083	9	demonstrates	demonstrate	VBZ
37894	1083	10	that	that	IN
37894	1083	11	birds	bird	NNS
37894	1083	12	cross	cross	VBP
37894	1083	13	the	the	DT
37894	1083	14	Gulf	Gulf	NNP
37894	1083	15	of	of	IN
37894	1083	16	Mexico	Mexico	NNP
37894	1083	17	in	in	IN
37894	1083	18	spring	spring	NN
37894	1083	19	in	in	IN
37894	1083	20	considerable	considerable	JJ
37894	1083	21	numbers	number	NNS
37894	1083	22	as	as	IN
37894	1083	23	do	do	VBP
37894	1083	24	flight	flight	NN
37894	1083	25	density	density	NN
37894	1083	26	data	datum	NNS
37894	1083	27	recorded	record	VBN
37894	1083	28	from	from	IN
37894	1083	29	Progreso	Progreso	NNP
37894	1083	30	in	in	IN
37894	1083	31	1948	1948	CD
37894	1083	32	.	.	.
37894	1084	1	_	_	NNP
37894	1084	2	Northern	Northern	NNP
37894	1084	3	Gulf	Gulf	NNP
37894	1084	4	Area	Area	NNP
37894	1084	5	_	_	NNP
37894	1084	6	Unfortunately	unfortunately	RB
37894	1084	7	only	only	RB
37894	1084	8	a	a	DT
37894	1084	9	few	few	JJ
37894	1084	10	data	datum	NNS
37894	1084	11	on	on	IN
37894	1084	12	flight	flight	NN
37894	1084	13	density	density	NN
37894	1084	14	are	be	VBP
37894	1084	15	available	available	JJ
37894	1084	16	from	from	IN
37894	1084	17	critical	critical	JJ
37894	1084	18	localities	locality	NNS
37894	1084	19	on	on	IN
37894	1084	20	the	the	DT
37894	1084	21	northern	northern	JJ
37894	1084	22	shores	shore	NNS
37894	1084	23	of	of	IN
37894	1084	24	the	the	DT
37894	1084	25	Gulf	Gulf	NNP
37894	1084	26	in	in	IN
37894	1084	27	spring	spring	NN
37894	1084	28	.	.	.
37894	1085	1	As	as	IN
37894	1085	2	the	the	DT
37894	1085	3	density	density	NN
37894	1085	4	curves	curve	VBZ
37894	1085	5	in	in	IN
37894	1085	6	Figure	Figure	NNP
37894	1085	7	30	30	CD
37894	1085	8	demonstrate	demonstrate	NN
37894	1085	9	,	,	,
37894	1085	10	several	several	JJ
37894	1085	11	sets	set	NNS
37894	1085	12	of	of	IN
37894	1085	13	observation	observation	NN
37894	1085	14	,	,	,
37894	1085	15	including	include	VBG
37894	1085	16	some	some	DT
37894	1085	17	phenomenal	phenomenal	JJ
37894	1085	18	flights	flight	NNS
37894	1085	19	,	,	,
37894	1085	20	have	have	VBP
37894	1085	21	been	be	VBN
37894	1085	22	recorded	record	VBN
37894	1085	23	at	at	IN
37894	1085	24	Baton	Baton	NNP
37894	1085	25	Rouge	Rouge	NNP
37894	1085	26	.	.	.
37894	1086	1	This	this	DT
37894	1086	2	locality	locality	NN
37894	1086	3	,	,	,
37894	1086	4	however	however	RB
37894	1086	5	,	,	,
37894	1086	6	lies	lie	VBZ
37894	1086	7	sixty	sixty	CD
37894	1086	8	-	-	HYPH
37894	1086	9	four	four	CD
37894	1086	10	miles	mile	NNS
37894	1086	11	from	from	IN
37894	1086	12	the	the	DT
37894	1086	13	closest	close	JJS
37894	1086	14	point	point	NN
37894	1086	15	on	on	IN
37894	1086	16	the	the	DT
37894	1086	17	Gulf	Gulf	NNP
37894	1086	18	coast	coast	NN
37894	1086	19	,	,	,
37894	1086	20	and	and	CC
37894	1086	21	the	the	DT
37894	1086	22	point	point	NN
37894	1086	23	due	due	JJ
37894	1086	24	southward	southward	RB
37894	1086	25	on	on	IN
37894	1086	26	the	the	DT
37894	1086	27	coast	coast	NN
37894	1086	28	is	be	VBZ
37894	1086	29	eighty	eighty	CD
37894	1086	30	-	-	HYPH
37894	1086	31	four	four	CD
37894	1086	32	miles	mile	NNS
37894	1086	33	distant	distant	JJ
37894	1086	34	.	.	.
37894	1087	1	Since	since	IN
37894	1087	2	all	all	DT
37894	1087	3	of	of	IN
37894	1087	4	the	the	DT
37894	1087	5	birds	bird	NNS
37894	1087	6	seen	see	VBN
37894	1087	7	at	at	IN
37894	1087	8	Baton	Baton	NNP
37894	1087	9	Rouge	Rouge	NNP
37894	1087	10	on	on	IN
37894	1087	11	any	any	DT
37894	1087	12	one	one	CD
37894	1087	13	night	night	NN
37894	1087	14	may	may	MD
37894	1087	15	have	have	VB
37894	1087	16	come	come	VBN
37894	1087	17	from	from	IN
37894	1087	18	the	the	DT
37894	1087	19	heavily	heavily	RB
37894	1087	20	forested	forested	JJ
37894	1087	21	area	area	NN
37894	1087	22	between	between	IN
37894	1087	23	Baton	Baton	NNP
37894	1087	24	Rouge	Rouge	NNP
37894	1087	25	and	and	CC
37894	1087	26	the	the	DT
37894	1087	27	coast	coast	NN
37894	1087	28	of	of	IN
37894	1087	29	the	the	DT
37894	1087	30	Gulf	Gulf	NNP
37894	1087	31	,	,	,
37894	1087	32	we	-PRON-	PRP
37894	1087	33	can	can	MD
37894	1087	34	not	not	RB
37894	1087	35	use	use	VB
37894	1087	36	data	datum	NNS
37894	1087	37	from	from	IN
37894	1087	38	Baton	Baton	NNP
37894	1087	39	Rouge	Rouge	NNP
37894	1087	40	as	as	IN
37894	1087	41	certainly	certainly	RB
37894	1087	42	representative	representative	JJ
37894	1087	43	of	of	IN
37894	1087	44	incoming	incoming	JJ
37894	1087	45	trans	trans	JJ
37894	1087	46	-	-	NNP
37894	1087	47	Gulf	Gulf	NNP
37894	1087	48	flights	flight	NNS
37894	1087	49	.	.	.
37894	1088	1	Data	datum	NNS
37894	1088	2	from	from	IN
37894	1088	3	repeated	repeated	JJ
37894	1088	4	observations	observation	NNS
37894	1088	5	at	at	IN
37894	1088	6	stations	station	NNS
37894	1088	7	on	on	IN
37894	1088	8	the	the	DT
37894	1088	9	coast	coast	NN
37894	1088	10	itself	-PRON-	PRP
37894	1088	11	are	be	VBP
37894	1088	12	needed	need	VBN
37894	1088	13	to	to	TO
37894	1088	14	judge	judge	VB
37894	1088	15	the	the	DT
37894	1088	16	degree	degree	NN
37894	1088	17	of	of	IN
37894	1088	18	trans	trans	JJ
37894	1088	19	-	-	NNP
37894	1088	20	Gulf	Gulf	NNP
37894	1088	21	migration	migration	NN
37894	1088	22	northward	northward	RB
37894	1088	23	.	.	.
37894	1089	1	On	on	IN
37894	1089	2	the	the	DT
37894	1089	3	few	few	JJ
37894	1089	4	nights	night	NNS
37894	1089	5	of	of	IN
37894	1089	6	observation	observation	NN
37894	1089	7	at	at	IN
37894	1089	8	such	such	JJ
37894	1089	9	localities	locality	NNS
37894	1089	10	(	(	-LRB-
37894	1089	11	Cameron	Cameron	NNP
37894	1089	12	and	and	CC
37894	1089	13	Grand	Grand	NNP
37894	1089	14	Isle	Isle	NNP
37894	1089	15	,	,	,
37894	1089	16	Louisiana	Louisiana	NNP
37894	1089	17	,	,	,
37894	1089	18	and	and	CC
37894	1089	19	Pensacola	Pensacola	NNP
37894	1089	20	,	,	,
37894	1089	21	Florida	Florida	NNP
37894	1089	22	)	)	-RRB-
37894	1089	23	,	,	,
37894	1089	24	flight	flight	NN
37894	1089	25	densities	density	NNS
37894	1089	26	have	have	VBP
37894	1089	27	been	be	VBN
37894	1089	28	zero	zero	CD
37894	1089	29	or	or	CC
37894	1089	30	negligible	negligible	JJ
37894	1089	31	.	.	.
37894	1090	1	To	to	TO
37894	1090	2	be	be	VB
37894	1090	3	sure	sure	JJ
37894	1090	4	,	,	,
37894	1090	5	negative	negative	JJ
37894	1090	6	results	result	NNS
37894	1090	7	have	have	VBP
37894	1090	8	been	be	VBN
37894	1090	9	obtained	obtain	VBN
37894	1090	10	at	at	IN
37894	1090	11	stations	station	NNS
37894	1090	12	in	in	IN
37894	1090	13	the	the	DT
37894	1090	14	interior	interior	NN
37894	1090	15	of	of	IN
37894	1090	16	the	the	DT
37894	1090	17	United	United	NNP
37894	1090	18	States	States	NNP
37894	1090	19	,	,	,
37894	1090	20	and	and	CC
37894	1090	21	flights	flight	NNS
37894	1090	22	of	of	IN
37894	1090	23	low	low	JJ
37894	1090	24	density	density	NN
37894	1090	25	have	have	VBP
37894	1090	26	been	be	VBN
37894	1090	27	recorded	record	VBN
37894	1090	28	on	on	IN
37894	1090	29	occasion	occasion	NN
37894	1090	30	at	at	IN
37894	1090	31	stations	station	NNS
37894	1090	32	where	where	WRB
37894	1090	33	the	the	DT
37894	1090	34	flight	flight	NN
37894	1090	35	densities	density	NNS
37894	1090	36	are	be	VBP
37894	1090	37	otherwise	otherwise	RB
37894	1090	38	high	high	JJ
37894	1090	39	.	.	.
37894	1091	1	Nevertheless	nevertheless	RB
37894	1091	2	,	,	,
37894	1091	3	in	in	IN
37894	1091	4	view	view	NN
37894	1091	5	of	of	IN
37894	1091	6	the	the	DT
37894	1091	7	volume	volume	NN
37894	1091	8	of	of	IN
37894	1091	9	migration	migration	NN
37894	1091	10	departing	depart	VBG
37894	1091	11	from	from	IN
37894	1091	12	Progreso	Progreso	NNP
37894	1091	13	,	,	,
37894	1091	14	Yucatán	Yucatán	NNP
37894	1091	15	,	,	,
37894	1091	16	it	-PRON-	PRP
37894	1091	17	would	would	MD
37894	1091	18	appear	appear	VB
37894	1091	19	,	,	,
37894	1091	20	upon	upon	IN
37894	1091	21	first	first	JJ
37894	1091	22	consideration	consideration	NN
37894	1091	23	,	,	,
37894	1091	24	that	that	IN
37894	1091	25	we	-PRON-	PRP
37894	1091	26	should	should	MD
37894	1091	27	at	at	IN
37894	1091	28	times	time	NNS
37894	1091	29	record	record	VB
37894	1091	30	on	on	IN
37894	1091	31	the	the	DT
37894	1091	32	coast	coast	NN
37894	1091	33	of	of	IN
37894	1091	34	Louisiana	Louisiana	NNP
37894	1091	35	enough	enough	JJ
37894	1091	36	birds	bird	NNS
37894	1091	37	arriving	arrive	VBG
37894	1091	38	in	in	IN
37894	1091	39	a	a	DT
37894	1091	40	night	night	NN
37894	1091	41	of	of	IN
37894	1091	42	continuous	continuous	JJ
37894	1091	43	observation	observation	NN
37894	1091	44	to	to	TO
37894	1091	45	yield	yield	VB
37894	1091	46	a	a	DT
37894	1091	47	high	high	JJ
37894	1091	48	density	density	NN
37894	1091	49	figure	figure	NN
37894	1091	50	.	.	.
37894	1092	1	Upon	upon	IN
37894	1092	2	further	further	JJ
37894	1092	3	consideration	consideration	NN
37894	1092	4	,	,	,
37894	1092	5	however	however	RB
37894	1092	6	,	,	,
37894	1092	7	there	there	EX
37894	1092	8	are	be	VBP
37894	1092	9	factors	factor	NNS
37894	1092	10	mitigating	mitigate	VBG
37894	1092	11	against	against	IN
37894	1092	12	heavy	heavy	JJ
37894	1092	13	densities	density	NNS
37894	1092	14	of	of	IN
37894	1092	15	birds	bird	NNS
37894	1092	16	in	in	IN
37894	1092	17	northern	northern	JJ
37894	1092	18	flight	flight	NN
37894	1092	19	on	on	IN
37894	1092	20	the	the	DT
37894	1092	21	northern	northern	JJ
37894	1092	22	coast	coast	NN
37894	1092	23	of	of	IN
37894	1092	24	the	the	DT
37894	1092	25	Gulf	Gulf	NNP
37894	1092	26	.	.	.
37894	1093	1	In	in	IN
37894	1093	2	the	the	DT
37894	1093	3	first	first	JJ
37894	1093	4	place	place	NN
37894	1093	5	,	,	,
37894	1093	6	presuming	presume	VBG
37894	1093	7	the	the	DT
37894	1093	8	main	main	JJ
37894	1093	9	trans	trans	NNP
37894	1093	10	-	-	NNP
37894	1093	11	Gulf	Gulf	NNP
37894	1093	12	flight	flight	NN
37894	1093	13	to	to	TO
37894	1093	14	originate	originate	VB
37894	1093	15	from	from	IN
37894	1093	16	northern	northern	JJ
37894	1093	17	Yucatán	Yucatán	NNP
37894	1093	18	,	,	,
37894	1093	19	and	and	CC
37894	1093	20	that	that	IN
37894	1093	21	there	there	EX
37894	1093	22	is	be	VBZ
37894	1093	23	a	a	DT
37894	1093	24	directional	directional	JJ
37894	1093	25	fanning	fanning	NN
37894	1093	26	to	to	IN
37894	1093	27	the	the	DT
37894	1093	28	northward	northward	NN
37894	1093	29	,	,	,
37894	1093	30	the	the	DT
37894	1093	31	birds	bird	NNS
37894	1093	32	leave	leave	VBP
37894	1093	33	on	on	IN
37894	1093	34	a	a	DT
37894	1093	35	260-mile	260-mile	CD
37894	1093	36	front	front	NN
37894	1093	37	,	,	,
37894	1093	38	and	and	CC
37894	1093	39	arrive	arrive	VB
37894	1093	40	on	on	IN
37894	1093	41	a	a	DT
37894	1093	42	front	front	JJ
37894	1093	43	400	400	CD
37894	1093	44	miles	mile	NNS
37894	1093	45	or	or	CC
37894	1093	46	more	more	RBR
37894	1093	47	wide	wide	JJ
37894	1093	48	.	.	.
37894	1094	1	Consequently	consequently	RB
37894	1094	2	,	,	,
37894	1094	3	other	other	JJ
37894	1094	4	factors	factor	NNS
37894	1094	5	remaining	remain	VBG
37894	1094	6	the	the	DT
37894	1094	7	same	same	JJ
37894	1094	8	,	,	,
37894	1094	9	there	there	EX
37894	1094	10	would	would	MD
37894	1094	11	be	be	VB
37894	1094	12	only	only	RB
37894	1094	13	approximately	approximately	RB
37894	1094	14	half	half	PDT
37894	1094	15	the	the	DT
37894	1094	16	number	number	NN
37894	1094	17	of	of	IN
37894	1094	18	birds	bird	NNS
37894	1094	19	on	on	IN
37894	1094	20	the	the	DT
37894	1094	21	coast	coast	NN
37894	1094	22	of	of	IN
37894	1094	23	arrival	arrival	NN
37894	1094	24	,	,	,
37894	1094	25	at	at	IN
37894	1094	26	a	a	DT
37894	1094	27	given	give	VBN
37894	1094	28	time	time	NN
37894	1094	29	and	and	CC
37894	1094	30	place	place	NN
37894	1094	31	,	,	,
37894	1094	32	as	as	IN
37894	1094	33	there	there	EX
37894	1094	34	was	be	VBD
37894	1094	35	on	on	IN
37894	1094	36	the	the	DT
37894	1094	37	coast	coast	NN
37894	1094	38	of	of	IN
37894	1094	39	departure	departure	NN
37894	1094	40	.	.	.
37894	1095	1	Secondly	secondly	RB
37894	1095	2	,	,	,
37894	1095	3	we	-PRON-	PRP
37894	1095	4	may	may	MD
37894	1095	5	now	now	RB
37894	1095	6	presume	presume	VB
37894	1095	7	on	on	IN
37894	1095	8	the	the	DT
37894	1095	9	basis	basis	NN
37894	1095	10	of	of	IN
37894	1095	11	the	the	DT
37894	1095	12	telescopic	telescopic	JJ
37894	1095	13	studies	study	NNS
37894	1095	14	at	at	IN
37894	1095	15	Progreso	Progreso	NNP
37894	1095	16	,	,	,
37894	1095	17	that	that	IN
37894	1095	18	most	most	JJS
37894	1095	19	migrants	migrant	NNS
37894	1095	20	leaving	leave	VBG
37894	1095	21	northern	northern	JJ
37894	1095	22	Yucatán	Yucatán	NNP
37894	1095	23	do	do	VBP
37894	1095	24	so	so	RB
37894	1095	25	in	in	IN
37894	1095	26	the	the	DT
37894	1095	27	few	few	JJ
37894	1095	28	hours	hour	NNS
37894	1095	29	centering	center	VBG
37894	1095	30	about	about	IN
37894	1095	31	midnight	midnight	NN
37894	1095	32	.	.	.
37894	1096	1	The	the	DT
37894	1096	2	varying	varying	NN
37894	1096	3	speeds	speed	NNS
37894	1096	4	of	of	IN
37894	1096	5	the	the	DT
37894	1096	6	birds	bird	NNS
37894	1096	7	making	make	VBG
37894	1096	8	the	the	DT
37894	1096	9	580-mile	580-mile	CD
37894	1096	10	flight	flight	NN
37894	1096	11	across	across	IN
37894	1096	12	the	the	DT
37894	1096	13	Gulf	Gulf	NNP
37894	1096	14	distribute	distribute	VB
37894	1096	15	them	-PRON-	PRP
37894	1096	16	still	still	RB
37894	1096	17	more	more	RBR
37894	1096	18	sparsely	sparsely	RB
37894	1096	19	on	on	IN
37894	1096	20	the	the	DT
37894	1096	21	north	north	NN
37894	1096	22	coast	coast	NN
37894	1096	23	of	of	IN
37894	1096	24	the	the	DT
37894	1096	25	Gulf	Gulf	NNP
37894	1096	26	both	both	DT
37894	1096	27	in	in	IN
37894	1096	28	time	time	NN
37894	1096	29	and	and	CC
37894	1096	30	in	in	IN
37894	1096	31	space	space	NN
37894	1096	32	.	.	.
37894	1097	1	Also	also	RB
37894	1097	2	we	-PRON-	PRP
37894	1097	3	can	can	MD
37894	1097	4	see	see	VB
37894	1097	5	only	only	RB
37894	1097	6	that	that	DT
37894	1097	7	segment	segment	NN
37894	1097	8	of	of	IN
37894	1097	9	the	the	DT
37894	1097	10	flight	flight	NN
37894	1097	11	,	,	,
37894	1097	12	which	which	WDT
37894	1097	13	arrives	arrive	VBZ
37894	1097	14	in	in	IN
37894	1097	15	that	that	DT
37894	1097	16	part	part	NN
37894	1097	17	of	of	IN
37894	1097	18	a	a	DT
37894	1097	19	twenty	twenty	CD
37894	1097	20	-	-	HYPH
37894	1097	21	four	four	CD
37894	1097	22	hour	hour	NN
37894	1097	23	period	period	NN
37894	1097	24	when	when	WRB
37894	1097	25	the	the	DT
37894	1097	26	moon	moon	NN
37894	1097	27	is	be	VBZ
37894	1097	28	up	up	RB
37894	1097	29	.	.	.
37894	1098	1	This	this	DT
37894	1098	2	circumstance	circumstance	NN
37894	1098	3	further	further	RB
37894	1098	4	reduces	reduce	VBZ
37894	1098	5	the	the	DT
37894	1098	6	interceptive	interceptive	JJ
37894	1098	7	potential	potential	NN
37894	1098	8	because	because	IN
37894	1098	9	the	the	DT
37894	1098	10	hours	hour	NNS
37894	1098	11	after	after	IN
37894	1098	12	dark	dark	JJ
37894	1098	13	,	,	,
37894	1098	14	to	to	TO
37894	1098	15	which	which	WDT
37894	1098	16	the	the	DT
37894	1098	17	present	present	JJ
37894	1098	18	telescopic	telescopic	JJ
37894	1098	19	studies	study	NNS
37894	1098	20	have	have	VBP
37894	1098	21	been	be	VBN
37894	1098	22	restricted	restrict	VBN
37894	1098	23	,	,	,
37894	1098	24	comprise	comprise	VB
37894	1098	25	the	the	DT
37894	1098	26	period	period	NN
37894	1098	27	in	in	IN
37894	1098	28	which	which	WDT
37894	1098	29	the	the	DT
37894	1098	30	fewest	few	JJS
37894	1098	31	migrants	migrant	NNS
37894	1098	32	arrive	arrive	VBP
37894	1098	33	from	from	IN
37894	1098	34	over	over	IN
37894	1098	35	the	the	DT
37894	1098	36	water	water	NN
37894	1098	37	.	.	.
37894	1099	1	To	to	TO
37894	1099	2	illustrate	illustrate	VB
37894	1099	3	:	:	:
37894	1099	4	it	-PRON-	PRP
37894	1099	5	is	be	VBZ
37894	1099	6	a	a	DT
37894	1099	7	mathematical	mathematical	JJ
37894	1099	8	certainty	certainty	NN
37894	1099	9	that	that	WDT
37894	1099	10	_	_	NNP
37894	1099	11	none	none	NN
37894	1099	12	_	_	NNP
37894	1099	13	of	of	IN
37894	1099	14	the	the	DT
37894	1099	15	birds	bird	NNS
37894	1099	16	leaving	leave	VBG
37894	1099	17	Yucatán	Yucatán	NNP
37894	1099	18	in	in	IN
37894	1099	19	the	the	DT
37894	1099	20	hours	hour	NNS
37894	1099	21	of	of	IN
37894	1099	22	heaviest	heavy	JJS
37894	1099	23	flight	flight	NN
37894	1099	24	,	,	,
37894	1099	25	before	before	IN
37894	1099	26	12	12	CD
37894	1099	27	P.	P.	NNP
37894	1099	28	M.	M.	NNP
37894	1099	29	,	,	,
37894	1099	30	and	and	CC
37894	1099	31	flying	fly	VBG
37894	1099	32	on	on	IN
37894	1099	33	a	a	DT
37894	1099	34	straight	straight	JJ
37894	1099	35	course	course	NN
37894	1099	36	at	at	IN
37894	1099	37	a	a	DT
37894	1099	38	speed	speed	NN
37894	1099	39	of	of	IN
37894	1099	40	approximately	approximately	RB
37894	1099	41	33	33	CD
37894	1099	42	mph	mph	NN
37894	1099	43	will	will	MD
37894	1099	44	reach	reach	VB
37894	1099	45	the	the	DT
37894	1099	46	northern	northern	JJ
37894	1099	47	Gulf	Gulf	NNP
37894	1099	48	coast	coast	NN
37894	1099	49	after	after	IN
37894	1099	50	nightfall	nightfall	NN
37894	1099	51	;	;	:
37894	1099	52	they	-PRON-	PRP
37894	1099	53	arrive	arrive	VBP
37894	1099	54	in	in	IN
37894	1099	55	the	the	DT
37894	1099	56	daytime	daytime	NN
37894	1099	57	.	.	.
37894	1100	1	It	-PRON-	PRP
37894	1100	2	will	will	MD
37894	1100	3	be	be	VB
37894	1100	4	useful	useful	JJ
37894	1100	5	to	to	TO
37894	1100	6	devise	devise	VB
37894	1100	7	a	a	DT
37894	1100	8	technique	technique	NN
37894	1100	9	for	for	IN
37894	1100	10	employing	employ	VBG
37894	1100	11	the	the	DT
37894	1100	12	sun	sun	NN
37894	1100	13	as	as	IN
37894	1100	14	a	a	DT
37894	1100	15	background	background	NN
37894	1100	16	for	for	IN
37894	1100	17	telescopic	telescopic	JJ
37894	1100	18	observation	observation	NN
37894	1100	19	of	of	IN
37894	1100	20	birds	bird	NNS
37894	1100	21	,	,	,
37894	1100	22	thereby	thereby	RB
37894	1100	23	making	make	VBG
37894	1100	24	observations	observation	NNS
37894	1100	25	possible	possible	JJ
37894	1100	26	on	on	IN
37894	1100	27	a	a	DT
37894	1100	28	twenty	twenty	CD
37894	1100	29	-	-	HYPH
37894	1100	30	four	four	CD
37894	1100	31	hour	hour	NN
37894	1100	32	basis	basis	NN
37894	1100	33	,	,	,
37894	1100	34	so	so	IN
37894	1100	35	as	as	IN
37894	1100	36	to	to	TO
37894	1100	37	test	test	VB
37894	1100	38	these	these	DT
37894	1100	39	inferences	inference	NNS
37894	1100	40	by	by	IN
37894	1100	41	objective	objective	JJ
37894	1100	42	data	datum	NNS
37894	1100	43	.	.	.
37894	1101	1	When	when	WRB
37894	1101	2	a	a	DT
37894	1101	3	whole	whole	JJ
37894	1101	4	night	night	NN
37894	1101	5	's	's	POS
37894	1101	6	observation	observation	NN
37894	1101	7	(	(	-LRB-
37894	1101	8	1949	1949	CD
37894	1101	9	data	datum	NNS
37894	1101	10	not	not	RB
37894	1101	11	yet	yet	RB
37894	1101	12	processed	process	VBN
37894	1101	13	)	)	-RRB-
37894	1101	14	at	at	IN
37894	1101	15	Port	Port	NNP
37894	1101	16	Aransas	Aransas	NNP
37894	1101	17	,	,	,
37894	1101	18	on	on	IN
37894	1101	19	the	the	DT
37894	1101	20	southern	southern	JJ
37894	1101	21	coast	coast	NN
37894	1101	22	of	of	IN
37894	1101	23	Texas	Texas	NNP
37894	1101	24	,	,	,
37894	1101	25	on	on	IN
37894	1101	26	the	the	DT
37894	1101	27	great	great	JJ
37894	1101	28	overland	overland	NNP
37894	1101	29	route	route	NN
37894	1101	30	from	from	IN
37894	1101	31	eastern	eastern	JJ
37894	1101	32	Mexico	Mexico	NNP
37894	1101	33	,	,	,
37894	1101	34	yields	yield	NNS
37894	1101	35	in	in	IN
37894	1101	36	one	one	CD
37894	1101	37	night	night	NN
37894	1101	38	in	in	IN
37894	1101	39	April	April	NNP
37894	1101	40	only	only	RB
37894	1101	41	seven	seven	CD
37894	1101	42	birds	bird	NNS
37894	1101	43	,	,	,
37894	1101	44	the	the	DT
37894	1101	45	recording	recording	NN
37894	1101	46	of	of	IN
37894	1101	47	no	no	DT
37894	1101	48	birds	bird	NNS
37894	1101	49	at	at	IN
37894	1101	50	a	a	DT
37894	1101	51	station	station	NN
37894	1101	52	near	near	IN
37894	1101	53	the	the	DT
37894	1101	54	mouth	mouth	NN
37894	1101	55	of	of	IN
37894	1101	56	the	the	DT
37894	1101	57	Mississippi	Mississippi	NNP
37894	1101	58	River	River	NNP
37894	1101	59	becomes	become	VBZ
37894	1101	60	less	less	RBR
37894	1101	61	significant	significant	JJ
37894	1101	62	.	.	.
37894	1102	1	As	as	IN
37894	1102	2	I	-PRON-	PRP
37894	1102	3	have	have	VBP
37894	1102	4	previously	previously	RB
37894	1102	5	remarked	remark	VBN
37894	1102	6	in	in	IN
37894	1102	7	this	this	DT
37894	1102	8	paper	paper	NN
37894	1102	9	,	,	,
37894	1102	10	the	the	DT
37894	1102	11	new	new	JJ
37894	1102	12	data	datum	NNS
37894	1102	13	obtained	obtain	VBN
37894	1102	14	since	since	IN
37894	1102	15	1946	1946	CD
37894	1102	16	,	,	,
37894	1102	17	when	when	WRB
37894	1102	18	I	-PRON-	PRP
37894	1102	19	last	last	VBP
37894	1102	20	wrote	write	VBD
37894	1102	21	on	on	IN
37894	1102	22	the	the	DT
37894	1102	23	subject	subject	NN
37894	1102	24	of	of	IN
37894	1102	25	migration	migration	NN
37894	1102	26	in	in	IN
37894	1102	27	the	the	DT
37894	1102	28	region	region	NN
37894	1102	29	of	of	IN
37894	1102	30	Gulf	Gulf	NNP
37894	1102	31	of	of	IN
37894	1102	32	Mexico	Mexico	NNP
37894	1102	33	,	,	,
37894	1102	34	requires	require	VBZ
37894	1102	35	that	that	IN
37894	1102	36	I	-PRON-	PRP
37894	1102	37	alter	alter	VBP
37894	1102	38	materially	materially	RB
37894	1102	39	some	some	DT
37894	1102	40	of	of	IN
37894	1102	41	my	-PRON-	PRP$
37894	1102	42	previously	previously	RB
37894	1102	43	held	hold	VBN
37894	1102	44	views	view	NNS
37894	1102	45	.	.	.
37894	1103	1	As	as	IN
37894	1103	2	more	more	JJR
37894	1103	3	and	and	CC
37894	1103	4	more	more	JJR
37894	1103	5	facts	fact	NNS
37894	1103	6	come	come	VBP
37894	1103	7	to	to	IN
37894	1103	8	light	light	NN
37894	1103	9	,	,	,
37894	1103	10	I	-PRON-	PRP
37894	1103	11	may	may	MD
37894	1103	12	be	be	VB
37894	1103	13	compelled	compel	VBN
37894	1103	14	to	to	TO
37894	1103	15	alter	alter	VB
37894	1103	16	them	-PRON-	PRP
37894	1103	17	still	still	RB
37894	1103	18	further	further	RB
37894	1103	19	.	.	.
37894	1104	1	For	for	IN
37894	1104	2	one	one	CD
37894	1104	3	thing	thing	NN
37894	1104	4	,	,	,
37894	1104	5	I	-PRON-	PRP
37894	1104	6	have	have	VBP
37894	1104	7	come	come	VBN
37894	1104	8	to	to	TO
37894	1104	9	doubt	doubt	VB
37894	1104	10	seriously	seriously	RB
37894	1104	11	the	the	DT
37894	1104	12	rigidity	rigidity	NN
37894	1104	13	of	of	IN
37894	1104	14	the	the	DT
37894	1104	15	coastal	coastal	JJ
37894	1104	16	hiatus	hiatus	NN
37894	1104	17	as	as	IN
37894	1104	18	I	-PRON-	PRP
37894	1104	19	envisioned	envision	VBD
37894	1104	20	it	-PRON-	PRP
37894	1104	21	in	in	IN
37894	1104	22	1945	1945	CD
37894	1104	23	.	.	.
37894	1105	1	I	-PRON-	PRP
37894	1105	2	believe	believe	VBP
37894	1105	3	instead	instead	RB
37894	1105	4	that	that	IN
37894	1105	5	the	the	DT
37894	1105	6	scarcity	scarcity	NN
37894	1105	7	of	of	IN
37894	1105	8	records	record	NNS
37894	1105	9	of	of	IN
37894	1105	10	transient	transient	JJ
37894	1105	11	migrants	migrant	NNS
37894	1105	12	on	on	IN
37894	1105	13	the	the	DT
37894	1105	14	Gulf	Gulf	NNP
37894	1105	15	coastal	coastal	JJ
37894	1105	16	plain	plain	NN
37894	1105	17	in	in	IN
37894	1105	18	fair	fair	JJ
37894	1105	19	weather	weather	NN
37894	1105	20	is	be	VBZ
37894	1105	21	to	to	IN
37894	1105	22	a	a	DT
37894	1105	23	very	very	RB
37894	1105	24	large	large	JJ
37894	1105	25	extent	extent	NN
37894	1105	26	the	the	DT
37894	1105	27	result	result	NN
37894	1105	28	of	of	IN
37894	1105	29	a	a	DT
37894	1105	30	wide	wide	JJ
37894	1105	31	dispersion	dispersion	NN
37894	1105	32	of	of	IN
37894	1105	33	birds	bird	NNS
37894	1105	34	in	in	IN
37894	1105	35	the	the	DT
37894	1105	36	dense	dense	JJ
37894	1105	37	cover	cover	NN
37894	1105	38	that	that	WDT
37894	1105	39	characterizes	characterize	VBZ
37894	1105	40	this	this	DT
37894	1105	41	general	general	JJ
37894	1105	42	region	region	NN
37894	1105	43	.	.	.
37894	1106	1	I	-PRON-	PRP
37894	1106	2	now	now	RB
37894	1106	3	question	question	VBP
37894	1106	4	if	if	IN
37894	1106	5	appreciable	appreciable	JJ
37894	1106	6	bird	bird	NN
37894	1106	7	densities	density	NNS
37894	1106	8	on	on	IN
37894	1106	9	the	the	DT
37894	1106	10	ground	ground	NN
37894	1106	11	ever	ever	RB
37894	1106	12	materialize	materialize	VBP
37894	1106	13	anywhere	anywhere	RB
37894	1106	14	except	except	IN
37894	1106	15	when	when	WRB
37894	1106	16	the	the	DT
37894	1106	17	sparseness	sparseness	NN
37894	1106	18	of	of	IN
37894	1106	19	suitable	suitable	JJ
37894	1106	20	habitat	habitat	NN
37894	1106	21	for	for	IN
37894	1106	22	resting	rest	VBG
37894	1106	23	or	or	CC
37894	1106	24	feeding	feed	VBG
37894	1106	25	tends	tend	NNS
37894	1106	26	to	to	TO
37894	1106	27	concentrate	concentrate	VB
37894	1106	28	birds	bird	NNS
37894	1106	29	in	in	IN
37894	1106	30	one	one	CD
37894	1106	31	place	place	NN
37894	1106	32	,	,	,
37894	1106	33	or	or	CC
37894	1106	34	when	when	WRB
37894	1106	35	certain	certain	JJ
37894	1106	36	meteorological	meteorological	JJ
37894	1106	37	conditions	condition	NNS
37894	1106	38	erect	erect	VBP
37894	1106	39	a	a	DT
37894	1106	40	barrier	barrier	NN
37894	1106	41	in	in	IN
37894	1106	42	the	the	DT
37894	1106	43	path	path	NN
37894	1106	44	of	of	IN
37894	1106	45	an	an	DT
37894	1106	46	oncoming	oncoming	JJ
37894	1106	47	migratory	migratory	NN
37894	1106	48	flight	flight	NN
37894	1106	49	,	,	,
37894	1106	50	precipitating	precipitate	VBG
37894	1106	51	many	many	JJ
37894	1106	52	birds	bird	NNS
37894	1106	53	in	in	IN
37894	1106	54	one	one	CD
37894	1106	55	place	place	NN
37894	1106	56	.	.	.
37894	1107	1	This	this	DT
37894	1107	2	retrenchment	retrenchment	NN
37894	1107	3	of	of	IN
37894	1107	4	ideas	idea	NNS
37894	1107	5	is	be	VBZ
37894	1107	6	a	a	DT
37894	1107	7	direct	direct	JJ
37894	1107	8	consequence	consequence	NN
37894	1107	9	of	of	IN
37894	1107	10	the	the	DT
37894	1107	11	present	present	JJ
37894	1107	12	study	study	NN
37894	1107	13	,	,	,
37894	1107	14	for	for	IN
37894	1107	15	time	time	NN
37894	1107	16	and	and	CC
37894	1107	17	again	again	RB
37894	1107	18	,	,	,
37894	1107	19	as	as	IN
37894	1107	20	discussed	discuss	VBN
37894	1107	21	in	in	IN
37894	1107	22	the	the	DT
37894	1107	23	case	case	NN
37894	1107	24	of	of	IN
37894	1107	25	Tampico	Tampico	NNP
37894	1107	26	densities	density	NNS
37894	1107	27	,	,	,
37894	1107	28	maximal	maximal	JJ
37894	1107	29	nightly	nightly	JJ
37894	1107	30	flights	flight	NNS
37894	1107	31	have	have	VBP
37894	1107	32	failed	fail	VBN
37894	1107	33	to	to	TO
37894	1107	34	produce	produce	VB
37894	1107	35	a	a	DT
37894	1107	36	visible	visible	JJ
37894	1107	37	abundance	abundance	NN
37894	1107	38	of	of	IN
37894	1107	39	transients	transient	NNS
37894	1107	40	on	on	IN
37894	1107	41	land	land	NN
37894	1107	42	the	the	DT
37894	1107	43	following	follow	VBG
37894	1107	44	day	day	NN
37894	1107	45	.	.	.
37894	1108	1	A	a	DT
37894	1108	2	simple	simple	JJ
37894	1108	3	example	example	NN
37894	1108	4	may	may	MD
37894	1108	5	serve	serve	VB
37894	1108	6	to	to	TO
37894	1108	7	illustrate	illustrate	VB
37894	1108	8	why	why	WRB
37894	1108	9	.	.	.
37894	1109	1	The	the	DT
37894	1109	2	highest	high	JJS
37894	1109	3	one	one	CD
37894	1109	4	-	-	HYPH
37894	1109	5	hour	hour	NN
37894	1109	6	density	density	NN
37894	1109	7	recorded	record	VBN
37894	1109	8	in	in	IN
37894	1109	9	the	the	DT
37894	1109	10	course	course	NN
37894	1109	11	of	of	IN
37894	1109	12	this	this	DT
37894	1109	13	study	study	NN
37894	1109	14	is	be	VBZ
37894	1109	15	21,200	21,200	CD
37894	1109	16	birds	bird	NNS
37894	1109	17	.	.	.
37894	1110	1	That	that	DT
37894	1110	2	means	mean	VBZ
37894	1110	3	that	that	IN
37894	1110	4	this	this	DT
37894	1110	5	many	many	JJ
37894	1110	6	birds	bird	NNS
37894	1110	7	crossed	cross	VBD
37894	1110	8	a	a	DT
37894	1110	9	line	line	NN
37894	1110	10	one	one	CD
37894	1110	11	mile	mile	NN
37894	1110	12	long	long	RB
37894	1110	13	on	on	IN
37894	1110	14	the	the	DT
37894	1110	15	earth	earth	NN
37894	1110	16	's	's	POS
37894	1110	17	surface	surface	NN
37894	1110	18	and	and	CC
37894	1110	19	at	at	IN
37894	1110	20	right	right	JJ
37894	1110	21	angles	angle	NNS
37894	1110	22	to	to	IN
37894	1110	23	the	the	DT
37894	1110	24	direction	direction	NN
37894	1110	25	of	of	IN
37894	1110	26	flight	flight	NN
37894	1110	27	.	.	.
37894	1111	1	Let	let	VB
37894	1111	2	us	-PRON-	PRP
37894	1111	3	further	further	RB
37894	1111	4	assume	assume	VB
37894	1111	5	that	that	IN
37894	1111	6	the	the	DT
37894	1111	7	average	average	JJ
37894	1111	8	flight	flight	NN
37894	1111	9	speed	speed	NN
37894	1111	10	of	of	IN
37894	1111	11	all	all	DT
37894	1111	12	birds	bird	NNS
37894	1111	13	comprising	comprise	VBG
37894	1111	14	this	this	DT
37894	1111	15	flight	flight	NN
37894	1111	16	was	be	VBD
37894	1111	17	30	30	CD
37894	1111	18	mph	mph	NN
37894	1111	19	.	.	.
37894	1112	1	Had	have	VBD
37894	1112	2	the	the	DT
37894	1112	3	entire	entire	JJ
37894	1112	4	flight	flight	NN
37894	1112	5	descended	descend	VBD
37894	1112	6	simultaneously	simultaneously	RB
37894	1112	7	,	,	,
37894	1112	8	it	-PRON-	PRP
37894	1112	9	would	would	MD
37894	1112	10	have	have	VB
37894	1112	11	been	be	VBN
37894	1112	12	dispersed	disperse	VBN
37894	1112	13	over	over	IN
37894	1112	14	an	an	DT
37894	1112	15	area	area	NN
37894	1112	16	one	one	CD
37894	1112	17	mile	mile	NN
37894	1112	18	wide	wide	JJ
37894	1112	19	and	and	CC
37894	1112	20	thirty	thirty	CD
37894	1112	21	miles	mile	NNS
37894	1112	22	long	long	JJ
37894	1112	23	,	,	,
37894	1112	24	and	and	CC
37894	1112	25	the	the	DT
37894	1112	26	precipitated	precipitate	VBN
37894	1112	27	density	density	NN
37894	1112	28	on	on	IN
37894	1112	29	the	the	DT
37894	1112	30	ground	ground	NN
37894	1112	31	would	would	MD
37894	1112	32	have	have	VB
37894	1112	33	been	be	VBN
37894	1112	34	only	only	RB
37894	1112	35	1.1	1.1	CD
37894	1112	36	birds	bird	NNS
37894	1112	37	per	per	IN
37894	1112	38	acre	acre	NN
37894	1112	39	.	.	.
37894	1113	1	Moreover	moreover	RB
37894	1113	2	,	,	,
37894	1113	3	if	if	IN
37894	1113	4	as	as	RB
37894	1113	5	many	many	JJ
37894	1113	6	as	as	IN
37894	1113	7	ten	ten	CD
37894	1113	8	species	specie	NNS
37894	1113	9	had	have	VBD
37894	1113	10	been	be	VBN
37894	1113	11	involved	involve	VBN
37894	1113	12	in	in	IN
37894	1113	13	the	the	DT
37894	1113	14	flight	flight	NN
37894	1113	15	,	,	,
37894	1113	16	this	this	DT
37894	1113	17	would	would	MD
37894	1113	18	have	have	VB
37894	1113	19	meant	mean	VBN
37894	1113	20	an	an	DT
37894	1113	21	average	average	NN
37894	1113	22	per	per	IN
37894	1113	23	species	specie	NNS
37894	1113	24	of	of	IN
37894	1113	25	less	less	JJR
37894	1113	26	than	than	IN
37894	1113	27	one	one	CD
37894	1113	28	bird	bird	NN
37894	1113	29	per	per	IN
37894	1113	30	nine	nine	CD
37894	1113	31	acres	acre	NNS
37894	1113	32	.	.	.
37894	1114	1	This	this	DT
37894	1114	2	would	would	MD
37894	1114	3	have	have	VB
37894	1114	4	failed	fail	VBN
37894	1114	5	,	,	,
37894	1114	6	of	of	IN
37894	1114	7	course	course	NN
37894	1114	8	,	,	,
37894	1114	9	to	to	TO
37894	1114	10	show	show	VB
37894	1114	11	appreciable	appreciable	JJ
37894	1114	12	concentrations	concentration	NNS
37894	1114	13	to	to	IN
37894	1114	14	the	the	DT
37894	1114	15	observer	observer	NN
37894	1114	16	in	in	IN
37894	1114	17	the	the	DT
37894	1114	18	field	field	NN
37894	1114	19	the	the	DT
37894	1114	20	following	follow	VBG
37894	1114	21	day	day	NN
37894	1114	22	.	.	.
37894	1115	1	If	if	IN
37894	1115	2	,	,	,
37894	1115	3	however	however	RB
37894	1115	4	,	,	,
37894	1115	5	on	on	IN
37894	1115	6	the	the	DT
37894	1115	7	other	other	JJ
37894	1115	8	hand	hand	NN
37894	1115	9	,	,	,
37894	1115	10	the	the	DT
37894	1115	11	same	same	JJ
37894	1115	12	flight	flight	NN
37894	1115	13	of	of	IN
37894	1115	14	21,200	21,200	CD
37894	1115	15	birds	bird	NNS
37894	1115	16	had	have	VBD
37894	1115	17	encountered	encounter	VBN
37894	1115	18	at	at	IN
37894	1115	19	one	one	CD
37894	1115	20	point	point	NN
37894	1115	21	a	a	DT
37894	1115	22	weather	weather	NN
37894	1115	23	barrier	barrier	NN
37894	1115	24	,	,	,
37894	1115	25	such	such	JJ
37894	1115	26	as	as	IN
37894	1115	27	a	a	DT
37894	1115	28	cold	cold	JJ
37894	1115	29	-	-	HYPH
37894	1115	30	front	front	NN
37894	1115	31	storm	storm	NN
37894	1115	32	,	,	,
37894	1115	33	all	all	DT
37894	1115	34	21,200	21,200	CD
37894	1115	35	birds	bird	NNS
37894	1115	36	might	may	MD
37894	1115	37	have	have	VB
37894	1115	38	been	be	VBN
37894	1115	39	precipitated	precipitate	VBN
37894	1115	40	in	in	IN
37894	1115	41	one	one	CD
37894	1115	42	place	place	NN
37894	1115	43	and	and	CC
37894	1115	44	the	the	DT
37894	1115	45	field	field	NN
37894	1115	46	observer	observer	NN
37894	1115	47	would	would	MD
37894	1115	48	have	have	VB
37894	1115	49	recorded	record	VBN
37894	1115	50	an	an	DT
37894	1115	51	"	"	``
37894	1115	52	inundation	inundation	NN
37894	1115	53	of	of	IN
37894	1115	54	migrants	migrant	NNS
37894	1115	55	.	.	.
37894	1115	56	"	"	''
37894	1116	1	This	this	DT
37894	1116	2	would	would	MD
37894	1116	3	be	be	VB
37894	1116	4	especially	especially	RB
37894	1116	5	true	true	JJ
37894	1116	6	if	if	IN
37894	1116	7	the	the	DT
37894	1116	8	locality	locality	NN
37894	1116	9	were	be	VBD
37894	1116	10	one	one	CD
37894	1116	11	with	with	IN
37894	1116	12	a	a	DT
37894	1116	13	high	high	JJ
37894	1116	14	percentage	percentage	NN
37894	1116	15	of	of	IN
37894	1116	16	open	open	JJ
37894	1116	17	fields	field	NNS
37894	1116	18	or	or	CC
37894	1116	19	prairies	prairie	NNS
37894	1116	20	and	and	CC
37894	1116	21	if	if	IN
37894	1116	22	the	the	DT
37894	1116	23	flight	flight	NN
37894	1116	24	were	be	VBD
37894	1116	25	mainly	mainly	RB
37894	1116	26	of	of	IN
37894	1116	27	woodland	woodland	JJ
37894	1116	28	dwelling	dwelling	JJ
37894	1116	29	species	specie	NNS
37894	1116	30	,	,	,
37894	1116	31	or	or	CC
37894	1116	32	conversely	conversely	RB
37894	1116	33	,	,	,
37894	1116	34	if	if	IN
37894	1116	35	the	the	DT
37894	1116	36	locality	locality	NN
37894	1116	37	were	be	VBD
37894	1116	38	densely	densely	RB
37894	1116	39	forested	forest	VBN
37894	1116	40	with	with	IN
37894	1116	41	few	few	JJ
37894	1116	42	open	open	JJ
37894	1116	43	situations	situation	NNS
37894	1116	44	and	and	CC
37894	1116	45	the	the	DT
37894	1116	46	flight	flight	NN
37894	1116	47	consisted	consist	VBD
37894	1116	48	mainly	mainly	RB
37894	1116	49	of	of	IN
37894	1116	50	open	open	JJ
37894	1116	51	-	-	HYPH
37894	1116	52	country	country	NN
37894	1116	53	birds	bird	NNS
37894	1116	54	.	.	.
37894	1117	1	As	as	IN
37894	1117	2	explained	explain	VBN
37894	1117	3	on	on	IN
37894	1117	4	page	page	NN
37894	1117	5	389	389	CD
37894	1117	6	,	,	,
37894	1117	7	the	the	DT
37894	1117	8	density	density	NN
37894	1117	9	formula	formula	NN
37894	1117	10	may	may	MD
37894	1117	11	be	be	VB
37894	1117	12	too	too	RB
37894	1117	13	conservative	conservative	JJ
37894	1117	14	in	in	IN
37894	1117	15	its	-PRON-	PRP$
37894	1117	16	expression	expression	NN
37894	1117	17	of	of	IN
37894	1117	18	actual	actual	JJ
37894	1117	19	bird	bird	NN
37894	1117	20	densities	density	NNS
37894	1117	21	.	.	.
37894	1118	1	Even	even	RB
37894	1118	2	if	if	IN
37894	1118	3	the	the	DT
37894	1118	4	densities	density	NNS
37894	1118	5	computed	compute	VBD
37894	1118	6	for	for	IN
37894	1118	7	birds	bird	NNS
37894	1118	8	in	in	IN
37894	1118	9	the	the	DT
37894	1118	10	air	air	NN
37894	1118	11	are	be	VBP
37894	1118	12	only	only	RB
37894	1118	13	half	half	RB
37894	1118	14	as	as	RB
37894	1118	15	high	high	JJ
37894	1118	16	as	as	IN
37894	1118	17	the	the	DT
37894	1118	18	actual	actual	JJ
37894	1118	19	densities	density	NNS
37894	1118	20	in	in	IN
37894	1118	21	the	the	DT
37894	1118	22	air	air	NN
37894	1118	23	,	,	,
37894	1118	24	the	the	DT
37894	1118	25	corresponding	correspond	VBG
37894	1118	26	ground	ground	NN
37894	1118	27	density	density	NN
37894	1118	28	of	of	IN
37894	1118	29	2.2	2.2	CD
37894	1118	30	birds	bird	NNS
37894	1118	31	per	per	IN
37894	1118	32	acre	acre	NN
37894	1118	33	that	that	WDT
37894	1118	34	results	result	VBZ
37894	1118	35	if	if	IN
37894	1118	36	all	all	PDT
37894	1118	37	the	the	DT
37894	1118	38	birds	bird	NNS
37894	1118	39	descended	descend	VBN
37894	1118	40	simultaneously	simultaneously	RB
37894	1118	41	would	would	MD
37894	1118	42	hardly	hardly	RB
37894	1118	43	be	be	VB
37894	1118	44	any	any	DT
37894	1118	45	more	more	RBR
37894	1118	46	impressive	impressive	JJ
37894	1118	47	than	than	IN
37894	1118	48	the	the	DT
37894	1118	49	1.1	1.1	CD
37894	1118	50	bird	bird	NN
37894	1118	51	per	per	IN
37894	1118	52	acre	acre	NN
37894	1118	53	.	.	.
37894	1119	1	This	this	DT
37894	1119	2	consideration	consideration	NN
37894	1119	3	is	be	VBZ
37894	1119	4	doubtless	doubtless	RB
37894	1119	5	highly	highly	RB
37894	1119	6	modified	modify	VBN
37894	1119	7	by	by	IN
37894	1119	8	local	local	JJ
37894	1119	9	circumstances	circumstance	NNS
37894	1119	10	,	,	,
37894	1119	11	but	but	CC
37894	1119	12	,	,	,
37894	1119	13	in	in	IN
37894	1119	14	general	general	JJ
37894	1119	15	,	,	,
37894	1119	16	it	-PRON-	PRP
37894	1119	17	seems	seem	VBZ
37894	1119	18	to	to	TO
37894	1119	19	suggest	suggest	VB
37894	1119	20	a	a	DT
37894	1119	21	working	work	VBG
37894	1119	22	hypothesis	hypothesis	NN
37894	1119	23	that	that	WDT
37894	1119	24	provides	provide	VBZ
37894	1119	25	an	an	DT
37894	1119	26	explanation	explanation	NN
37894	1119	27	for	for	IN
37894	1119	28	many	many	JJ
37894	1119	29	of	of	IN
37894	1119	30	the	the	DT
37894	1119	31	facts	fact	NNS
37894	1119	32	that	that	WDT
37894	1119	33	we	-PRON-	PRP
37894	1119	34	now	now	RB
37894	1119	35	have	have	VBP
37894	1119	36	.	.	.
37894	1120	1	For	for	IN
37894	1120	2	example	example	NN
37894	1120	3	,	,	,
37894	1120	4	on	on	IN
37894	1120	5	the	the	DT
37894	1120	6	coast	coast	NN
37894	1120	7	of	of	IN
37894	1120	8	Texas	Texas	NNP
37894	1120	9	there	there	EX
37894	1120	10	are	be	VBP
37894	1120	11	great	great	JJ
37894	1120	12	expanses	expanse	NNS
37894	1120	13	of	of	IN
37894	1120	14	terrain	terrain	NN
37894	1120	15	unattractive	unattractive	JJ
37894	1120	16	to	to	IN
37894	1120	17	such	such	JJ
37894	1120	18	birds	bird	NNS
37894	1120	19	as	as	IN
37894	1120	20	warblers	warbler	NNS
37894	1120	21	,	,	,
37894	1120	22	vireos	vireo	NNS
37894	1120	23	,	,	,
37894	1120	24	tanagers	tanager	NNS
37894	1120	25	,	,	,
37894	1120	26	and	and	CC
37894	1120	27	thrushes	thrush	NNS
37894	1120	28	.	.	.
37894	1121	1	The	the	DT
37894	1121	2	precipitation	precipitation	NN
37894	1121	3	there	there	RB
37894	1121	4	by	by	IN
37894	1121	5	bad	bad	JJ
37894	1121	6	weather	weather	NN
37894	1121	7	of	of	IN
37894	1121	8	even	even	RB
37894	1121	9	a	a	DT
37894	1121	10	mediocre	mediocre	JJ
37894	1121	11	nightly	nightly	JJ
37894	1121	12	flight	flight	NN
37894	1121	13	composed	compose	VBN
37894	1121	14	of	of	IN
37894	1121	15	birds	bird	NNS
37894	1121	16	of	of	IN
37894	1121	17	the	the	DT
37894	1121	18	kinds	kind	NNS
37894	1121	19	mentioned	mention	VBN
37894	1121	20	would	would	MD
37894	1121	21	surely	surely	RB
37894	1121	22	produce	produce	VB
37894	1121	23	an	an	DT
37894	1121	24	overwhelming	overwhelming	JJ
37894	1121	25	concentration	concentration	NN
37894	1121	26	of	of	IN
37894	1121	27	birds	bird	NNS
37894	1121	28	in	in	IN
37894	1121	29	the	the	DT
37894	1121	30	scattered	scatter	VBN
37894	1121	31	woods	wood	NNS
37894	1121	32	and	and	CC
37894	1121	33	shrubs	shrub	NNS
37894	1121	34	.	.	.
37894	1122	1	In	in	IN
37894	1122	2	spite	spite	NN
37894	1122	3	of	of	IN
37894	1122	4	all	all	DT
37894	1122	5	that	that	WDT
37894	1122	6	has	have	VBZ
37894	1122	7	been	be	VBN
37894	1122	8	written	write	VBN
37894	1122	9	about	about	IN
37894	1122	10	the	the	DT
37894	1122	11	great	great	JJ
37894	1122	12	concentrations	concentration	NNS
37894	1122	13	of	of	IN
37894	1122	14	transient	transient	JJ
37894	1122	15	migrants	migrant	NNS
37894	1122	16	on	on	IN
37894	1122	17	the	the	DT
37894	1122	18	coast	coast	NN
37894	1122	19	of	of	IN
37894	1122	20	Texas	Texas	NNP
37894	1122	21	in	in	IN
37894	1122	22	spring	spring	NN
37894	1122	23	,	,	,
37894	1122	24	I	-PRON-	PRP
37894	1122	25	am	be	VBP
37894	1122	26	not	not	RB
37894	1122	27	convinced	convinced	JJ
37894	1122	28	that	that	IN
37894	1122	29	they	-PRON-	PRP
37894	1122	30	are	be	VBP
37894	1122	31	of	of	IN
37894	1122	32	a	a	DT
37894	1122	33	different	different	JJ
37894	1122	34	order	order	NN
37894	1122	35	of	of	IN
37894	1122	36	magnitude	magnitude	NN
37894	1122	37	than	than	IN
37894	1122	38	those	those	DT
37894	1122	39	concentrations	concentration	NNS
37894	1122	40	that	that	WDT
37894	1122	41	sometimes	sometimes	RB
37894	1122	42	occur	occur	VBP
37894	1122	43	along	along	IN
37894	1122	44	the	the	DT
37894	1122	45	cheniers	chenier	NNS
37894	1122	46	and	and	CC
37894	1122	47	coastal	coastal	JJ
37894	1122	48	islands	island	NNS
37894	1122	49	of	of	IN
37894	1122	50	Louisiana	Louisiana	NNP
37894	1122	51	and	and	CC
37894	1122	52	Mississippi	Mississippi	NNP
37894	1122	53	.	.	.
37894	1123	1	I	-PRON-	PRP
37894	1123	2	have	have	VBP
37894	1123	3	read	read	VBN
37894	1123	4	over	over	RB
37894	1123	5	and	and	CC
37894	1123	6	over	over	IN
37894	1123	7	the	the	DT
37894	1123	8	highly	highly	RB
37894	1123	9	informative	informative	JJ
37894	1123	10	accounts	account	NNS
37894	1123	11	of	of	IN
37894	1123	12	Professor	Professor	NNP
37894	1123	13	Williams	Williams	NNP
37894	1123	14	(	(	-LRB-
37894	1123	15	_	_	NNP
37894	1123	16	loci	loci	NN
37894	1123	17	cit	cit	NN
37894	1123	18	.	.	.
37894	1123	19	_	_	NNP
37894	1123	20	)	)	-RRB-
37894	1123	21	and	and	CC
37894	1123	22	the	the	DT
37894	1123	23	seasonal	seasonal	JJ
37894	1123	24	summaries	summary	NNS
37894	1123	25	by	by	IN
37894	1123	26	Davis	Davis	NNP
37894	1123	27	(	(	-LRB-
37894	1123	28	1936	1936	CD
37894	1123	29	-	-	SYM
37894	1123	30	1940	1940	CD
37894	1123	31	)	)	-RRB-
37894	1123	32	and	and	CC
37894	1123	33	Williams	Williams	NNP
37894	1123	34	(	(	-LRB-
37894	1123	35	1941	1941	CD
37894	1123	36	-	-	SYM
37894	1123	37	1945	1945	CD
37894	1123	38	)	)	-RRB-
37894	1123	39	.	.	.
37894	1124	1	I	-PRON-	PRP
37894	1124	2	have	have	VBP
37894	1124	3	conversed	converse	VBN
37894	1124	4	at	at	IN
37894	1124	5	length	length	NN
37894	1124	6	with	with	IN
37894	1124	7	Mrs.	Mrs.	NNP
37894	1124	8	Jack	Jack	NNP
37894	1124	9	Hagar	Hagar	NNP
37894	1124	10	,	,	,
37894	1124	11	whom	whom	WP
37894	1124	12	I	-PRON-	PRP
37894	1124	13	regard	regard	VBP
37894	1124	14	as	as	IN
37894	1124	15	one	one	CD
37894	1124	16	of	of	IN
37894	1124	17	the	the	DT
37894	1124	18	leading	lead	VBG
37894	1124	19	authorities	authority	NNS
37894	1124	20	on	on	IN
37894	1124	21	the	the	DT
37894	1124	22	bird	bird	NN
37894	1124	23	life	life	NN
37894	1124	24	of	of	IN
37894	1124	25	the	the	DT
37894	1124	26	Texas	Texas	NNP
37894	1124	27	coast	coast	NN
37894	1124	28	,	,	,
37894	1124	29	and	and	CC
37894	1124	30	she	-PRON-	PRP
37894	1124	31	has	have	VBZ
37894	1124	32	even	even	RB
37894	1124	33	permitted	permit	VBN
37894	1124	34	me	-PRON-	PRP
37894	1124	35	access	access	NN
37894	1124	36	to	to	IN
37894	1124	37	her	-PRON-	PRP$
37894	1124	38	voluminous	voluminous	JJ
37894	1124	39	records	record	NNS
37894	1124	40	covering	cover	VBG
37894	1124	41	a	a	DT
37894	1124	42	period	period	NN
37894	1124	43	of	of	IN
37894	1124	44	fifteen	fifteen	CD
37894	1124	45	years	year	NNS
37894	1124	46	residence	residence	NN
37894	1124	47	at	at	IN
37894	1124	48	Rockport	Rockport	NNP
37894	1124	49	.	.	.
37894	1125	1	Finally	finally	RB
37894	1125	2	,	,	,
37894	1125	3	I	-PRON-	PRP
37894	1125	4	have	have	VBP
37894	1125	5	spent	spend	VBN
37894	1125	6	a	a	DT
37894	1125	7	limited	limited	JJ
37894	1125	8	amount	amount	NN
37894	1125	9	of	of	IN
37894	1125	10	time	time	NN
37894	1125	11	myself	-PRON-	PRP
37894	1125	12	on	on	IN
37894	1125	13	the	the	DT
37894	1125	14	Texas	Texas	NNP
37894	1125	15	coast	coast	NN
37894	1125	16	studying	study	VBG
37894	1125	17	first	first	JJ
37894	1125	18	-	-	HYPH
37894	1125	19	hand	hand	NN
37894	1125	20	the	the	DT
37894	1125	21	situation	situation	NN
37894	1125	22	that	that	WDT
37894	1125	23	obtains	obtain	VBZ
37894	1125	24	there	there	RB
37894	1125	25	in	in	IN
37894	1125	26	order	order	NN
37894	1125	27	that	that	IN
37894	1125	28	I	-PRON-	PRP
37894	1125	29	might	may	MD
37894	1125	30	be	be	VB
37894	1125	31	in	in	IN
37894	1125	32	a	a	DT
37894	1125	33	position	position	NN
37894	1125	34	to	to	TO
37894	1125	35	compare	compare	VB
37894	1125	36	it	-PRON-	PRP
37894	1125	37	with	with	IN
37894	1125	38	what	what	WP
37894	1125	39	I	-PRON-	PRP
37894	1125	40	have	have	VBP
37894	1125	41	learned	learn	VBN
37894	1125	42	from	from	IN
37894	1125	43	observations	observation	NNS
37894	1125	44	elsewhere	elsewhere	RB
37894	1125	45	in	in	IN
37894	1125	46	the	the	DT
37894	1125	47	region	region	NN
37894	1125	48	of	of	IN
37894	1125	49	the	the	DT
37894	1125	50	Gulf	Gulf	NNP
37894	1125	51	of	of	IN
37894	1125	52	Mexico	Mexico	NNP
37894	1125	53	,	,	,
37894	1125	54	Louisiana	Louisiana	NNP
37894	1125	55	,	,	,
37894	1125	56	Florida	Florida	NNP
37894	1125	57	,	,	,
37894	1125	58	Yucatán	Yucatán	NNP
37894	1125	59	,	,	,
37894	1125	60	and	and	CC
37894	1125	61	eastern	eastern	JJ
37894	1125	62	Mexico	Mexico	NNP
37894	1125	63	.	.	.
37894	1126	1	Although	although	IN
37894	1126	2	the	the	DT
37894	1126	3	concentrations	concentration	NNS
37894	1126	4	of	of	IN
37894	1126	5	birds	bird	NNS
37894	1126	6	on	on	IN
37894	1126	7	some	some	DT
37894	1126	8	days	day	NNS
37894	1126	9	near	near	IN
37894	1126	10	the	the	DT
37894	1126	11	mouth	mouth	NN
37894	1126	12	of	of	IN
37894	1126	13	the	the	DT
37894	1126	14	Mississippi	Mississippi	NNP
37894	1126	15	River	River	NNP
37894	1126	16	are	be	VBP
37894	1126	17	almost	almost	RB
37894	1126	18	incalculable	incalculable	JJ
37894	1126	19	,	,	,
37894	1126	20	the	the	DT
37894	1126	21	fact	fact	NN
37894	1126	22	remains	remain	VBZ
37894	1126	23	that	that	IN
37894	1126	24	in	in	IN
37894	1126	25	Texas	Texas	NNP
37894	1126	26	the	the	DT
37894	1126	27	densities	density	NNS
37894	1126	28	of	of	IN
37894	1126	29	transient	transient	JJ
37894	1126	30	species	specie	NNS
37894	1126	31	on	on	IN
37894	1126	32	the	the	DT
37894	1126	33	ground	ground	NN
37894	1126	34	are	be	VBP
37894	1126	35	more	more	RBR
37894	1126	36	consistently	consistently	RB
37894	1126	37	high	high	JJ
37894	1126	38	from	from	IN
37894	1126	39	day	day	NN
37894	1126	40	to	to	IN
37894	1126	41	day	day	NN
37894	1126	42	.	.	.
37894	1127	1	The	the	DT
37894	1127	2	reason	reason	NN
37894	1127	3	for	for	IN
37894	1127	4	this	this	DT
37894	1127	5	may	may	MD
37894	1127	6	be	be	VB
37894	1127	7	simple	simple	JJ
37894	1127	8	.	.	.
37894	1128	1	As	as	IN
37894	1128	2	birds	bird	NNS
37894	1128	3	move	move	VBP
37894	1128	4	up	up	RB
37894	1128	5	daily	daily	RB
37894	1128	6	from	from	IN
37894	1128	7	Mexico	Mexico	NNP
37894	1128	8	overland	overland	NN
37894	1128	9	,	,	,
37894	1128	10	a	a	DT
37894	1128	11	certain	certain	JJ
37894	1128	12	percentage	percentage	NN
37894	1128	13	would	would	MD
37894	1128	14	be	be	VB
37894	1128	15	destined	destine	VBN
37894	1128	16	to	to	TO
37894	1128	17	come	come	VB
37894	1128	18	down	down	RP
37894	1128	19	at	at	IN
37894	1128	20	all	all	DT
37894	1128	21	points	point	NNS
37894	1128	22	along	along	IN
37894	1128	23	the	the	DT
37894	1128	24	route	route	NN
37894	1128	25	but	but	CC
37894	1128	26	so	so	RB
37894	1128	27	dispersed	disperse	VBD
37894	1128	28	in	in	IN
37894	1128	29	the	the	DT
37894	1128	30	inland	inland	JJ
37894	1128	31	forest	forest	NN
37894	1128	32	that	that	IN
37894	1128	33	they	-PRON-	PRP
37894	1128	34	might	may	MD
37894	1128	35	pass	pass	VB
37894	1128	36	unnoticed	unnoticed	JJ
37894	1128	37	.	.	.
37894	1129	1	However	however	RB
37894	1129	2	,	,	,
37894	1129	3	that	that	DT
37894	1129	4	part	part	NN
37894	1129	5	of	of	IN
37894	1129	6	the	the	DT
37894	1129	7	same	same	JJ
37894	1129	8	flight	flight	NN
37894	1129	9	settling	settle	VBG
37894	1129	10	down	down	RP
37894	1129	11	in	in	IN
37894	1129	12	coastal	coastal	JJ
37894	1129	13	areas	area	NNS
37894	1129	14	,	,	,
37894	1129	15	where	where	WRB
37894	1129	16	trees	tree	NNS
37894	1129	17	are	be	VBP
37894	1129	18	scarce	scarce	JJ
37894	1129	19	,	,	,
37894	1129	20	would	would	MD
37894	1129	21	produce	produce	VB
37894	1129	22	visible	visible	JJ
37894	1129	23	concentrations	concentration	NNS
37894	1129	24	of	of	IN
37894	1129	25	woodland	woodland	JJ
37894	1129	26	species	specie	NNS
37894	1129	27	.	.	.
37894	1130	1	With	with	IN
37894	1130	2	the	the	DT
37894	1130	3	advent	advent	NN
37894	1130	4	of	of	IN
37894	1130	5	a	a	DT
37894	1130	6	cold	cold	JJ
37894	1130	7	-	-	HYPH
37894	1130	8	front	front	NN
37894	1130	9	storm	storm	NN
37894	1130	10	,	,	,
37894	1130	11	two	two	CD
37894	1130	12	diametrically	diametrically	RB
37894	1130	13	opposite	opposite	JJ
37894	1130	14	effects	effect	NNS
37894	1130	15	of	of	IN
37894	1130	16	the	the	DT
37894	1130	17	same	same	JJ
37894	1130	18	meteorological	meteorological	JJ
37894	1130	19	phenomenon	phenomenon	NN
37894	1130	20	would	would	MD
37894	1130	21	tend	tend	VB
37894	1130	22	to	to	TO
37894	1130	23	pile	pile	VB
37894	1130	24	up	up	RP
37894	1130	25	great	great	JJ
37894	1130	26	concentrations	concentration	NNS
37894	1130	27	of	of	IN
37894	1130	28	migrants	migrant	NNS
37894	1130	29	of	of	IN
37894	1130	30	two	two	CD
37894	1130	31	classes	class	NNS
37894	1130	32	--	--	:
37894	1130	33	the	the	DT
37894	1130	34	overland	overland	NN
37894	1130	35	and	and	CC
37894	1130	36	the	the	DT
37894	1130	37	trans	trans	NNP
37894	1130	38	-	-	NNP
37894	1130	39	Gulf	Gulf	NNP
37894	1130	40	flights	flight	NNS
37894	1130	41	.	.	.
37894	1131	1	During	during	IN
37894	1131	2	the	the	DT
37894	1131	3	prepolar	prepolar	JJ
37894	1131	4	-	-	HYPH
37894	1131	5	front	front	NN
37894	1131	6	weather	weather	NN
37894	1131	7	the	the	DT
37894	1131	8	strong	strong	JJ
37894	1131	9	southerly	southerly	RB
37894	1131	10	(	(	-LRB-
37894	1131	11	from	from	IN
37894	1131	12	the	the	DT
37894	1131	13	south	south	NN
37894	1131	14	)	)	-RRB-
37894	1131	15	and	and	CC
37894	1131	16	southeasterly	southeasterly	RB
37894	1131	17	winds	wind	NNS
37894	1131	18	would	would	MD
37894	1131	19	tend	tend	VB
37894	1131	20	to	to	TO
37894	1131	21	displace	displace	VB
37894	1131	22	much	much	JJ
37894	1131	23	of	of	IN
37894	1131	24	the	the	DT
37894	1131	25	trans	trans	NNP
37894	1131	26	-	-	NNP
37894	1131	27	Gulf	Gulf	NNP
37894	1131	28	segment	segment	NN
37894	1131	29	to	to	IN
37894	1131	30	the	the	DT
37894	1131	31	western	western	JJ
37894	1131	32	part	part	NN
37894	1131	33	of	of	IN
37894	1131	34	the	the	DT
37894	1131	35	Gulf	Gulf	NNP
37894	1131	36	.	.	.
37894	1132	1	With	with	IN
37894	1132	2	the	the	DT
37894	1132	3	shift	shift	NN
37894	1132	4	of	of	IN
37894	1132	5	the	the	DT
37894	1132	6	winds	wind	NNS
37894	1132	7	to	to	IN
37894	1132	8	the	the	DT
37894	1132	9	north	north	NN
37894	1132	10	and	and	CC
37894	1132	11	northwest	northwest	NN
37894	1132	12	,	,	,
37894	1132	13	which	which	WDT
37894	1132	14	always	always	RB
37894	1132	15	occurs	occur	VBZ
37894	1132	16	as	as	IN
37894	1132	17	the	the	DT
37894	1132	18	front	front	NN
37894	1132	19	passes	pass	VBZ
37894	1132	20	,	,	,
37894	1132	21	the	the	DT
37894	1132	22	overland	overland	NN
37894	1132	23	flight	flight	NN
37894	1132	24	still	still	RB
37894	1132	25	in	in	IN
37894	1132	26	the	the	DT
37894	1132	27	air	air	NN
37894	1132	28	would	would	MD
37894	1132	29	tend	tend	VB
37894	1132	30	to	to	TO
37894	1132	31	be	be	VB
37894	1132	32	banked	bank	VBN
37894	1132	33	up	up	RP
37894	1132	34	against	against	IN
37894	1132	35	the	the	DT
37894	1132	36	coast	coast	NN
37894	1132	37	,	,	,
37894	1132	38	and	and	CC
37894	1132	39	the	the	DT
37894	1132	40	incoming	incoming	JJ
37894	1132	41	trans	trans	JJ
37894	1132	42	-	-	NNP
37894	1132	43	Gulf	Gulf	NNP
37894	1132	44	flight	flight	NN
37894	1132	45	would	would	MD
37894	1132	46	be	be	VB
37894	1132	47	confronted	confront	VBN
37894	1132	48	with	with	IN
37894	1132	49	a	a	DT
37894	1132	50	barrier	barrier	NN
37894	1132	51	,	,	,
37894	1132	52	resulting	result	VBG
37894	1132	53	in	in	IN
37894	1132	54	the	the	DT
37894	1132	55	precipitation	precipitation	NN
37894	1132	56	of	of	IN
37894	1132	57	birds	bird	NNS
37894	1132	58	on	on	IN
37894	1132	59	the	the	DT
37894	1132	60	first	first	JJ
37894	1132	61	available	available	JJ
37894	1132	62	land	land	NN
37894	1132	63	.	.	.
37894	1133	1	These	these	DT
37894	1133	2	postulated	postulate	VBN
37894	1133	3	conditions	condition	NNS
37894	1133	4	are	be	VBP
37894	1133	5	duplicated	duplicate	VBN
37894	1133	6	in	in	IN
37894	1133	7	part	part	NN
37894	1133	8	in	in	IN
37894	1133	9	autumn	autumn	NN
37894	1133	10	along	along	IN
37894	1133	11	the	the	DT
37894	1133	12	Atlantic	Atlantic	NNP
37894	1133	13	coast	coast	NN
37894	1133	14	of	of	IN
37894	1133	15	the	the	DT
37894	1133	16	eastern	eastern	JJ
37894	1133	17	United	United	NNP
37894	1133	18	States	States	NNP
37894	1133	19	.	.	.
37894	1134	1	There	there	RB
37894	1134	2	,	,	,
37894	1134	3	as	as	IN
37894	1134	4	a	a	DT
37894	1134	5	result	result	NN
37894	1134	6	of	of	IN
37894	1134	7	the	the	DT
37894	1134	8	excellent	excellent	JJ
37894	1134	9	work	work	NN
37894	1134	10	of	of	IN
37894	1134	11	Allen	Allen	NNP
37894	1134	12	and	and	CC
37894	1134	13	Peterson	Peterson	NNP
37894	1134	14	(	(	-LRB-
37894	1134	15	1936	1936	CD
37894	1134	16	)	)	-RRB-
37894	1134	17	and	and	CC
37894	1134	18	Stone	Stone	NNP
37894	1134	19	(	(	-LRB-
37894	1134	20	1937	1937	CD
37894	1134	21	)	)	-RRB-
37894	1134	22	,	,	,
37894	1134	23	a	a	DT
37894	1134	24	similar	similar	JJ
37894	1134	25	effect	effect	NN
37894	1134	26	has	have	VBZ
37894	1134	27	been	be	VBN
37894	1134	28	demonstrated	demonstrate	VBN
37894	1134	29	when	when	WRB
37894	1134	30	northwest	northwest	NNP
37894	1134	31	winds	wind	NNS
37894	1134	32	shove	shove	VBP
37894	1134	33	the	the	DT
37894	1134	34	south	south	RB
37894	1134	35	-	-	HYPH
37894	1134	36	bound	bind	VBN
37894	1134	37	flights	flight	NNS
37894	1134	38	up	up	RP
37894	1134	39	against	against	IN
37894	1134	40	the	the	DT
37894	1134	41	coast	coast	NN
37894	1134	42	of	of	IN
37894	1134	43	New	New	NNP
37894	1134	44	Jersey	Jersey	NNP
37894	1134	45	and	and	CC
37894	1134	46	concentrate	concentrate	VB
37894	1134	47	large	large	JJ
37894	1134	48	aggregations	aggregation	NNS
37894	1134	49	of	of	IN
37894	1134	50	migrants	migrant	NNS
37894	1134	51	there	there	RB
37894	1134	52	.	.	.
37894	1135	1	_	_	NNP
37894	1135	2	Interior	Interior	NNP
37894	1135	3	of	of	IN
37894	1135	4	the	the	DT
37894	1135	5	United	United	NNP
37894	1135	6	States	States	NNP
37894	1135	7	_	_	NNP
37894	1135	8	Attention	Attention	NNP
37894	1135	9	has	have	VBZ
37894	1135	10	been	be	VBN
37894	1135	11	drawn	draw	VBN
37894	1135	12	already	already	RB
37894	1135	13	to	to	IN
37894	1135	14	the	the	DT
37894	1135	15	nature	nature	NN
37894	1135	16	of	of	IN
37894	1135	17	the	the	DT
37894	1135	18	nightly	nightly	JJ
37894	1135	19	flights	flight	NNS
37894	1135	20	at	at	IN
37894	1135	21	stations	station	NNS
37894	1135	22	immediately	immediately	RB
37894	1135	23	inland	inland	RB
37894	1135	24	from	from	IN
37894	1135	25	the	the	DT
37894	1135	26	Gulf	Gulf	NNP
37894	1135	27	coast	coast	NN
37894	1135	28	,	,	,
37894	1135	29	where	where	WRB
37894	1135	30	densities	density	NNS
37894	1135	31	decline	decline	VBP
37894	1135	32	abruptly	abruptly	RB
37894	1135	33	well	well	RB
37894	1135	34	before	before	IN
37894	1135	35	midnight	midnight	NN
37894	1135	36	.	.	.
37894	1136	1	I	-PRON-	PRP
37894	1136	2	have	have	VBP
37894	1136	3	suggested	suggest	VBN
37894	1136	4	that	that	IN
37894	1136	5	this	this	DT
37894	1136	6	early	early	JJ
37894	1136	7	drop	drop	NN
37894	1136	8	-	-	HYPH
37894	1136	9	off	off	NN
37894	1136	10	is	be	VBZ
37894	1136	11	mainly	mainly	RB
37894	1136	12	a	a	DT
37894	1136	13	result	result	NN
37894	1136	14	of	of	IN
37894	1136	15	the	the	DT
37894	1136	16	small	small	JJ
37894	1136	17	amount	amount	NN
37894	1136	18	of	of	IN
37894	1136	19	terrain	terrain	NN
37894	1136	20	south	south	RB
37894	1136	21	of	of	IN
37894	1136	22	these	these	DT
37894	1136	23	stations	station	NNS
37894	1136	24	from	from	IN
37894	1136	25	which	which	WDT
37894	1136	26	birds	bird	NNS
37894	1136	27	may	may	MD
37894	1136	28	be	be	VB
37894	1136	29	contributed	contribute	VBN
37894	1136	30	to	to	IN
37894	1136	31	a	a	DT
37894	1136	32	night	night	NN
37894	1136	33	's	's	POS
37894	1136	34	flight	flight	NN
37894	1136	35	.	.	.
37894	1137	1	At	at	IN
37894	1137	2	Oak	Oak	NNP
37894	1137	3	Grove	Grove	NNP
37894	1137	4	,	,	,
37894	1137	5	Louisiana	Louisiana	NNP
37894	1137	6	,	,	,
37894	1137	7	the	the	DT
37894	1137	8	flight	flight	NN
37894	1137	9	exhibited	exhibit	VBD
37894	1137	10	a	a	DT
37894	1137	11	strong	strong	JJ
37894	1137	12	directional	directional	JJ
37894	1137	13	trend	trend	NN
37894	1137	14	with	with	IN
37894	1137	15	no	no	DT
37894	1137	16	significant	significant	JJ
37894	1137	17	aberrant	aberrant	JJ
37894	1137	18	components	component	NNS
37894	1137	19	.	.	.
37894	1138	1	Therefore	therefore	RB
37894	1138	2	,	,	,
37894	1138	3	one	one	PRP
37894	1138	4	may	may	MD
37894	1138	5	infer	infer	VB
37894	1138	6	that	that	IN
37894	1138	7	a	a	DT
37894	1138	8	considerable	considerable	JJ
37894	1138	9	part	part	NN
37894	1138	10	of	of	IN
37894	1138	11	the	the	DT
37894	1138	12	flight	flight	NN
37894	1138	13	was	be	VBD
37894	1138	14	derived	derive	VBN
37894	1138	15	from	from	IN
37894	1138	16	regions	region	NNS
37894	1138	17	to	to	IN
37894	1138	18	the	the	DT
37894	1138	19	south	south	NN
37894	1138	20	of	of	IN
37894	1138	21	the	the	DT
37894	1138	22	station	station	NN
37894	1138	23	.	.	.
37894	1139	1	At	at	IN
37894	1139	2	Mansfield	Mansfield	NNP
37894	1139	3	,	,	,
37894	1139	4	Louisiana	Louisiana	NNP
37894	1139	5	,	,	,
37894	1139	6	thirty	thirty	CD
37894	1139	7	-	-	HYPH
37894	1139	8	eight	eight	CD
37894	1139	9	hours	hour	NNS
37894	1139	10	of	of	IN
37894	1139	11	observation	observation	NN
37894	1139	12	in	in	IN
37894	1139	13	April	April	NNP
37894	1139	14	and	and	CC
37894	1139	15	May	May	NNP
37894	1139	16	resulted	result	VBD
37894	1139	17	in	in	IN
37894	1139	18	flight	flight	NN
37894	1139	19	densities	density	NNS
37894	1139	20	that	that	WDT
37894	1139	21	are	be	VBP
37894	1139	22	surprisingly	surprisingly	RB
37894	1139	23	low	low	JJ
37894	1139	24	--	--	:
37894	1139	25	much	much	RB
37894	1139	26	lower	low	JJR
37894	1139	27	,	,	,
37894	1139	28	in	in	IN
37894	1139	29	fact	fact	NN
37894	1139	30	,	,	,
37894	1139	31	than	than	IN
37894	1139	32	at	at	IN
37894	1139	33	Oak	Oak	NNP
37894	1139	34	Grove	Grove	NNP
37894	1139	35	.	.	.
37894	1140	1	In	in	IN
37894	1140	2	eleven	eleven	CD
37894	1140	3	of	of	IN
37894	1140	4	the	the	DT
37894	1140	5	hours	hour	NNS
37894	1140	6	of	of	IN
37894	1140	7	observation	observation	NN
37894	1140	8	no	no	DT
37894	1140	9	birds	bird	NNS
37894	1140	10	at	at	RB
37894	1140	11	all	all	RB
37894	1140	12	were	be	VBD
37894	1140	13	seen	see	VBN
37894	1140	14	.	.	.
37894	1141	1	A	a	DT
37894	1141	2	possible	possible	JJ
37894	1141	3	explanation	explanation	NN
37894	1141	4	for	for	IN
37894	1141	5	these	these	DT
37894	1141	6	low	low	JJ
37894	1141	7	densities	density	NNS
37894	1141	8	lies	lie	VBZ
37894	1141	9	in	in	IN
37894	1141	10	the	the	DT
37894	1141	11	fact	fact	NN
37894	1141	12	that	that	IN
37894	1141	13	eastern	eastern	JJ
37894	1141	14	Texas	Texas	NNP
37894	1141	15	and	and	CC
37894	1141	16	western	western	JJ
37894	1141	17	Louisiana	Louisiana	NNP
37894	1141	18	,	,	,
37894	1141	19	where	where	WRB
37894	1141	20	,	,	,
37894	1141	21	probably	probably	RB
37894	1141	22	,	,	,
37894	1141	23	the	the	DT
37894	1141	24	Mansfield	Mansfield	NNP
37894	1141	25	flights	flight	NNS
37894	1141	26	originated	originate	VBD
37894	1141	27	,	,	,
37894	1141	28	is	be	VBZ
37894	1141	29	not	not	RB
37894	1141	30	an	an	DT
37894	1141	31	especially	especially	RB
37894	1141	32	attractive	attractive	JJ
37894	1141	33	region	region	NN
37894	1141	34	to	to	IN
37894	1141	35	migrants	migrant	NNS
37894	1141	36	because	because	IN
37894	1141	37	of	of	IN
37894	1141	38	the	the	DT
37894	1141	39	great	great	JJ
37894	1141	40	amount	amount	NN
37894	1141	41	of	of	IN
37894	1141	42	deforested	deforested	JJ
37894	1141	43	and	and	CC
37894	1141	44	second	second	JJ
37894	1141	45	growth	growth	NN
37894	1141	46	pine	pine	NN
37894	1141	47	land	land	NN
37894	1141	48	.	.	.
37894	1142	1	Oak	Oak	NNP
37894	1142	2	Grove	Grove	NNP
37894	1142	3	,	,	,
37894	1142	4	in	in	IN
37894	1142	5	contrast	contrast	NN
37894	1142	6	,	,	,
37894	1142	7	is	be	VBZ
37894	1142	8	in	in	IN
37894	1142	9	the	the	DT
37894	1142	10	great	great	JJ
37894	1142	11	Tensas	Tensas	NNP
37894	1142	12	-	-	HYPH
37894	1142	13	Mississippi	Mississippi	NNP
37894	1142	14	River	River	NNP
37894	1142	15	flood	flood	NN
37894	1142	16	plain	plain	NN
37894	1142	17	,	,	,
37894	1142	18	characterized	characterize	VBN
37894	1142	19	by	by	IN
37894	1142	20	an	an	DT
37894	1142	21	almost	almost	RB
37894	1142	22	solid	solid	JJ
37894	1142	23	stand	stand	NN
37894	1142	24	of	of	IN
37894	1142	25	deciduous	deciduous	JJ
37894	1142	26	forest	forest	NN
37894	1142	27	extending	extend	VBG
37894	1142	28	over	over	IN
37894	1142	29	thousands	thousand	NNS
37894	1142	30	of	of	IN
37894	1142	31	square	square	JJ
37894	1142	32	miles	mile	NNS
37894	1142	33	in	in	IN
37894	1142	34	the	the	DT
37894	1142	35	lower	low	JJR
37894	1142	36	Mississippi	Mississippi	NNP
37894	1142	37	valley	valley	NN
37894	1142	38	.	.	.
37894	1143	1	[	[	-LRB-
37894	1143	2	Illustration	illustration	NN
37894	1143	3	:	:	:
37894	1143	4	FIG	FIG	NNP
37894	1143	5	.	.	.
37894	1144	1	37	37	CD
37894	1144	2	.	.	.
37894	1145	1	Sector	sector	NN
37894	1145	2	density	density	NN
37894	1145	3	representation	representation	NN
37894	1145	4	on	on	IN
37894	1145	5	two	two	CD
37894	1145	6	nights	night	NNS
37894	1145	7	at	at	IN
37894	1145	8	Rosedale	Rosedale	NNP
37894	1145	9	,	,	,
37894	1145	10	Mississippi	Mississippi	NNP
37894	1145	11	,	,	,
37894	1145	12	in	in	IN
37894	1145	13	1948	1948	CD
37894	1145	14	.	.	.
37894	1146	1	The	the	DT
37894	1146	2	white	white	JJ
37894	1146	3	lines	line	NNS
37894	1146	4	are	be	VBP
37894	1146	5	the	the	DT
37894	1146	6	vector	vector	NN
37894	1146	7	resultants	resultant	NNS
37894	1146	8	.	.	.
37894	1146	9	]	]	-RRB-
37894	1147	1	In	in	IN
37894	1147	2	further	further	JJ
37894	1147	3	contrast	contrast	NN
37894	1147	4	to	to	IN
37894	1147	5	the	the	DT
37894	1147	6	considerable	considerable	JJ
37894	1147	7	flight	flight	NN
37894	1147	8	densities	density	NNS
37894	1147	9	and	and	CC
37894	1147	10	pronounced	pronounce	VBD
37894	1147	11	directional	directional	JJ
37894	1147	12	trend	trend	NN
37894	1147	13	at	at	IN
37894	1147	14	Oak	Oak	NNP
37894	1147	15	Grove	Grove	NNP
37894	1147	16	,	,	,
37894	1147	17	we	-PRON-	PRP
37894	1147	18	have	have	VBP
37894	1147	19	the	the	DT
37894	1147	20	results	result	NNS
37894	1147	21	from	from	IN
37894	1147	22	Rosedale	Rosedale	NNP
37894	1147	23	,	,	,
37894	1147	24	Mississippi	Mississippi	NNP
37894	1147	25	,	,	,
37894	1147	26	only	only	RB
37894	1147	27	seventy	seventy	CD
37894	1147	28	miles	mile	NNS
37894	1147	29	to	to	IN
37894	1147	30	the	the	DT
37894	1147	31	north	north	NN
37894	1147	32	and	and	CC
37894	1147	33	slightly	slightly	RB
37894	1147	34	to	to	IN
37894	1147	35	the	the	DT
37894	1147	36	east	east	NN
37894	1147	37	.	.	.
37894	1148	1	At	at	IN
37894	1148	2	Rosedale	Rosedale	NNP
37894	1148	3	the	the	DT
37894	1148	4	densities	density	NNS
37894	1148	5	were	be	VBD
37894	1148	6	mediocre	mediocre	JJ
37894	1148	7	and	and	CC
37894	1148	8	the	the	DT
37894	1148	9	flight	flight	NN
37894	1148	10	directions	direction	NNS
37894	1148	11	were	be	VBD
37894	1148	12	extremely	extremely	RB
37894	1148	13	divergent	divergent	JJ
37894	1148	14	.	.	.
37894	1149	1	Many	many	JJ
37894	1149	2	of	of	IN
37894	1149	3	the	the	DT
37894	1149	4	nights	night	NNS
37894	1149	5	of	of	IN
37894	1149	6	observation	observation	NN
37894	1149	7	at	at	IN
37894	1149	8	this	this	DT
37894	1149	9	locality	locality	NN
37894	1149	10	were	be	VBD
37894	1149	11	seriously	seriously	RB
37894	1149	12	interrupted	interrupt	VBN
37894	1149	13	by	by	IN
37894	1149	14	clouds	cloud	NNS
37894	1149	15	,	,	,
37894	1149	16	but	but	CC
37894	1149	17	such	such	JJ
37894	1149	18	counts	count	NNS
37894	1149	19	as	as	IN
37894	1149	20	were	be	VBD
37894	1149	21	made	make	VBN
37894	1149	22	on	on	IN
37894	1149	23	those	those	DT
37894	1149	24	dates	date	NNS
37894	1149	25	indicated	indicate	VBD
37894	1149	26	little	little	JJ
37894	1149	27	migration	migration	NN
37894	1149	28	taking	take	VBG
37894	1149	29	place	place	NN
37894	1149	30	.	.	.
37894	1150	1	On	on	IN
37894	1150	2	two	two	CD
37894	1150	3	nights	night	NNS
37894	1150	4	,	,	,
37894	1150	5	however	however	RB
37894	1150	6	,	,	,
37894	1150	7	April	April	NNP
37894	1150	8	21	21	CD
37894	1150	9	-	-	SYM
37894	1150	10	22	22	CD
37894	1150	11	and	and	CC
37894	1150	12	May	May	NNP
37894	1150	13	20	20	CD
37894	1150	14	-	-	SYM
37894	1150	15	21	21	CD
37894	1150	16	,	,	,
37894	1150	17	visibility	visibility	NN
37894	1150	18	was	be	VBD
37894	1150	19	almost	almost	RB
37894	1150	20	continuous	continuous	JJ
37894	1150	21	and	and	CC
37894	1150	22	densities	density	NNS
37894	1150	23	were	be	VBD
37894	1150	24	moderately	moderately	RB
37894	1150	25	high	high	JJ
37894	1150	26	.	.	.
37894	1151	1	In	in	IN
37894	1151	2	Figure	figure	NN
37894	1151	3	37	37	CD
37894	1151	4	I	-PRON-	PRP
37894	1151	5	have	have	VBP
37894	1151	6	shown	show	VBN
37894	1151	7	the	the	DT
37894	1151	8	flight	flight	NN
37894	1151	9	directions	direction	NNS
37894	1151	10	for	for	IN
37894	1151	11	these	these	DT
37894	1151	12	two	two	CD
37894	1151	13	nights	night	NNS
37894	1151	14	.	.	.
37894	1152	1	The	the	DT
37894	1152	2	lengths	length	NNS
37894	1152	3	of	of	IN
37894	1152	4	the	the	DT
37894	1152	5	individual	individual	JJ
37894	1152	6	sector	sector	NN
37894	1152	7	vectors	vector	NNS
37894	1152	8	are	be	VBP
37894	1152	9	plotted	plot	VBN
37894	1152	10	as	as	IN
37894	1152	11	a	a	DT
37894	1152	12	percentage	percentage	NN
37894	1152	13	of	of	IN
37894	1152	14	the	the	DT
37894	1152	15	total	total	JJ
37894	1152	16	station	station	NN
37894	1152	17	density	density	NN
37894	1152	18	for	for	IN
37894	1152	19	each	each	DT
37894	1152	20	of	of	IN
37894	1152	21	the	the	DT
37894	1152	22	two	two	CD
37894	1152	23	nights	night	NNS
37894	1152	24	(	(	-LRB-
37894	1152	25	5,800	5,800	CD
37894	1152	26	and	and	CC
37894	1152	27	6,800	6,800	CD
37894	1152	28	birds	bird	NNS
37894	1152	29	,	,	,
37894	1152	30	respectively	respectively	RB
37894	1152	31	)	)	-RRB-
37894	1152	32	.	.	.
37894	1153	1	Although	although	IN
37894	1153	2	the	the	DT
37894	1153	3	vector	vector	NN
37894	1153	4	resultants	resultant	NNS
37894	1153	5	show	show	VBP
37894	1153	6	a	a	DT
37894	1153	7	net	net	JJ
37894	1153	8	movement	movement	NN
37894	1153	9	of	of	IN
37894	1153	10	birds	bird	NNS
37894	1153	11	to	to	IN
37894	1153	12	the	the	DT
37894	1153	13	northeast	northeast	NN
37894	1153	14	,	,	,
37894	1153	15	there	there	EX
37894	1153	16	are	be	VBP
37894	1153	17	important	important	JJ
37894	1153	18	divergent	divergent	JJ
37894	1153	19	components	component	NNS
37894	1153	20	of	of	IN
37894	1153	21	the	the	DT
37894	1153	22	flights	flight	NNS
37894	1153	23	.	.	.
37894	1154	1	This	this	DT
37894	1154	2	"	"	``
37894	1154	3	round	round	JJ
37894	1154	4	-	-	HYPH
37894	1154	5	the	the	DT
37894	1154	6	-	-	HYPH
37894	1154	7	compass	compass	NN
37894	1154	8	"	"	''
37894	1154	9	pattern	pattern	NN
37894	1154	10	is	be	VBZ
37894	1154	11	characteristic	characteristic	JJ
37894	1154	12	of	of	IN
37894	1154	13	stations	station	NNS
37894	1154	14	on	on	IN
37894	1154	15	the	the	DT
37894	1154	16	edge	edge	NN
37894	1154	17	of	of	IN
37894	1154	18	meteorological	meteorological	JJ
37894	1154	19	disturbances	disturbance	NNS
37894	1154	20	,	,	,
37894	1154	21	as	as	IN
37894	1154	22	was	be	VBD
37894	1154	23	Rosedale	Rosedale	NNP
37894	1154	24	on	on	IN
37894	1154	25	April	April	NNP
37894	1154	26	21	21	CD
37894	1154	27	-	-	SYM
37894	1154	28	22	22	CD
37894	1154	29	,	,	,
37894	1154	30	but	but	CC
37894	1154	31	not	not	RB
37894	1154	32	on	on	IN
37894	1154	33	the	the	DT
37894	1154	34	night	night	NN
37894	1154	35	of	of	IN
37894	1154	36	May	May	NNP
37894	1154	37	20	20	CD
37894	1154	38	-	-	SYM
37894	1154	39	21	21	CD
37894	1154	40	.	.	.
37894	1155	1	If	if	IN
37894	1155	2	bats	bat	NNS
37894	1155	3	are	be	VBP
37894	1155	4	presumed	presume	VBN
37894	1155	5	to	to	TO
37894	1155	6	have	have	VB
37894	1155	7	played	play	VBN
37894	1155	8	a	a	DT
37894	1155	9	rôle	rôle	NN
37894	1155	10	in	in	IN
37894	1155	11	these	these	DT
37894	1155	12	latter	latter	JJ
37894	1155	13	observations	observation	NNS
37894	1155	14	,	,	,
37894	1155	15	their	-PRON-	PRP$
37894	1155	16	random	random	JJ
37894	1155	17	flights	flight	NNS
37894	1155	18	would	would	MD
37894	1155	19	tend	tend	VB
37894	1155	20	to	to	TO
37894	1155	21	cancel	cancel	VB
37894	1155	22	out	out	RP
37894	1155	23	and	and	CC
37894	1155	24	the	the	DT
37894	1155	25	vector	vector	NN
37894	1155	26	resultant	resultant	NN
37894	1155	27	would	would	MD
37894	1155	28	emerge	emerge	VB
37894	1155	29	as	as	IN
37894	1155	30	a	a	DT
37894	1155	31	graphic	graphic	JJ
37894	1155	32	representation	representation	NN
37894	1155	33	of	of	IN
37894	1155	34	the	the	DT
37894	1155	35	actual	actual	JJ
37894	1155	36	net	net	JJ
37894	1155	37	trend	trend	NN
37894	1155	38	density	density	NN
37894	1155	39	of	of	IN
37894	1155	40	the	the	DT
37894	1155	41	birds	bird	NNS
37894	1155	42	and	and	CC
37894	1155	43	its	-PRON-	PRP$
37894	1155	44	prevailing	prevailing	JJ
37894	1155	45	direction	direction	NN
37894	1155	46	of	of	IN
37894	1155	47	flow	flow	NN
37894	1155	48	.	.	.
37894	1156	1	Although	although	IN
37894	1156	2	I	-PRON-	PRP
37894	1156	3	do	do	VBP
37894	1156	4	not	not	RB
37894	1156	5	believe	believe	VB
37894	1156	6	that	that	IN
37894	1156	7	bats	bat	NNS
37894	1156	8	are	be	VBP
37894	1156	9	the	the	DT
37894	1156	10	real	real	JJ
37894	1156	11	reason	reason	NN
37894	1156	12	for	for	IN
37894	1156	13	the	the	DT
37894	1156	14	diverse	diverse	JJ
37894	1156	15	directional	directional	JJ
37894	1156	16	patterns	pattern	NNS
37894	1156	17	at	at	IN
37894	1156	18	Rosedale	Rosedale	NNP
37894	1156	19	,	,	,
37894	1156	20	I	-PRON-	PRP
37894	1156	21	can	can	MD
37894	1156	22	offer	offer	VB
37894	1156	23	no	no	DT
37894	1156	24	alternative	alternative	JJ
37894	1156	25	explanation	explanation	NN
37894	1156	26	consistent	consistent	JJ
37894	1156	27	with	with	IN
37894	1156	28	data	datum	NNS
37894	1156	29	from	from	IN
37894	1156	30	other	other	JJ
37894	1156	31	stations	station	NNS
37894	1156	32	.	.	.
37894	1157	1	Moving	move	VBG
37894	1157	2	northward	northward	RB
37894	1157	3	in	in	IN
37894	1157	4	the	the	DT
37894	1157	5	valley	valley	NN
37894	1157	6	of	of	IN
37894	1157	7	the	the	DT
37894	1157	8	Mississippi	Mississippi	NNP
37894	1157	9	and	and	CC
37894	1157	10	its	-PRON-	PRP$
37894	1157	11	tributaries	tributary	NNS
37894	1157	12	,	,	,
37894	1157	13	we	-PRON-	PRP
37894	1157	14	find	find	VBP
37894	1157	15	a	a	DT
37894	1157	16	number	number	NN
37894	1157	17	of	of	IN
37894	1157	18	stations	station	NNS
37894	1157	19	that	that	WDT
37894	1157	20	yielded	yield	VBD
37894	1157	21	significantly	significantly	RB
37894	1157	22	high	high	JJ
37894	1157	23	densities	density	NNS
37894	1157	24	on	on	IN
37894	1157	25	most	most	JJS
37894	1157	26	nights	night	NNS
37894	1157	27	when	when	WRB
37894	1157	28	weather	weather	NN
37894	1157	29	conditions	condition	NNS
37894	1157	30	were	be	VBD
37894	1157	31	favorable	favorable	JJ
37894	1157	32	for	for	IN
37894	1157	33	migration	migration	NN
37894	1157	34	.	.	.
37894	1158	1	Louisville	Louisville	NNP
37894	1158	2	and	and	CC
37894	1158	3	Murray	Murray	NNP
37894	1158	4	,	,	,
37894	1158	5	Kentucky	Kentucky	NNP
37894	1158	6	,	,	,
37894	1158	7	and	and	CC
37894	1158	8	Knoxville	Knoxville	NNP
37894	1158	9	,	,	,
37894	1158	10	Tennessee	Tennessee	NNP
37894	1158	11	,	,	,
37894	1158	12	each	each	DT
37894	1158	13	show	show	VBP
37894	1158	14	several	several	JJ
37894	1158	15	nights	night	NNS
37894	1158	16	with	with	IN
37894	1158	17	many	many	JJ
37894	1158	18	birds	bird	NNS
37894	1158	19	flying	fly	VBG
37894	1158	20	,	,	,
37894	1158	21	but	but	CC
37894	1158	22	only	only	RB
37894	1158	23	Lawrence	Lawrence	NNP
37894	1158	24	,	,	,
37894	1158	25	Kansas	Kansas	NNP
37894	1158	26	,	,	,
37894	1158	27	and	and	CC
37894	1158	28	Ottumwa	Ottumwa	NNP
37894	1158	29	,	,	,
37894	1158	30	Iowa	Iowa	NNP
37894	1158	31	,	,	,
37894	1158	32	had	have	VBD
37894	1158	33	migrations	migration	NNS
37894	1158	34	that	that	DT
37894	1158	35	approach	approach	NN
37894	1158	36	in	in	IN
37894	1158	37	magnitude	magnitude	NN
37894	1158	38	the	the	DT
37894	1158	39	record	record	NN
37894	1158	40	station	station	NN
37894	1158	41	densities	density	NNS
37894	1158	42	at	at	IN
37894	1158	43	Tampico	Tampico	NNP
37894	1158	44	.	.	.
37894	1159	1	Indeed	indeed	RB
37894	1159	2	,	,	,
37894	1159	3	these	these	DT
37894	1159	4	were	be	VBD
37894	1159	5	the	the	DT
37894	1159	6	only	only	JJ
37894	1159	7	two	two	CD
37894	1159	8	stations	station	NNS
37894	1159	9	in	in	IN
37894	1159	10	the	the	DT
37894	1159	11	United	United	NNP
37894	1159	12	States	States	NNP
37894	1159	13	that	that	WDT
37894	1159	14	produced	produce	VBD
37894	1159	15	flights	flight	NNS
37894	1159	16	exceeding	exceed	VBG
37894	1159	17	the	the	DT
37894	1159	18	densities	density	NNS
37894	1159	19	at	at	IN
37894	1159	20	Progreso	Progreso	NNP
37894	1159	21	,	,	,
37894	1159	22	Yucatán	Yucatán	NNP
37894	1159	23	.	.	.
37894	1160	1	The	the	DT
37894	1160	2	densities	density	NNS
37894	1160	3	at	at	IN
37894	1160	4	Lawrence	Lawrence	NNP
37894	1160	5	are	be	VBP
37894	1160	6	unique	unique	JJ
37894	1160	7	in	in	IN
37894	1160	8	one	one	CD
37894	1160	9	respect	respect	NN
37894	1160	10	,	,	,
37894	1160	11	in	in	IN
37894	1160	12	that	that	IN
37894	1160	13	they	-PRON-	PRP
37894	1160	14	were	be	VBD
37894	1160	15	extremely	extremely	RB
37894	1160	16	high	high	JJ
37894	1160	17	in	in	IN
37894	1160	18	the	the	DT
37894	1160	19	month	month	NN
37894	1160	20	of	of	IN
37894	1160	21	March	March	NNP
37894	1160	22	.	.	.
37894	1161	1	Since	since	IN
37894	1161	2	there	there	EX
37894	1161	3	were	be	VBD
37894	1161	4	very	very	RB
37894	1161	5	few	few	JJ
37894	1161	6	stations	station	NNS
37894	1161	7	in	in	IN
37894	1161	8	operation	operation	NN
37894	1161	9	then	then	RB
37894	1161	10	,	,	,
37894	1161	11	these	these	DT
37894	1161	12	high	high	JJ
37894	1161	13	densities	density	NNS
37894	1161	14	would	would	MD
37894	1161	15	be	be	VB
37894	1161	16	of	of	IN
37894	1161	17	little	little	JJ
37894	1161	18	significance	significance	NN
37894	1161	19	were	be	VBD
37894	1161	20	it	-PRON-	PRP
37894	1161	21	not	not	RB
37894	1161	22	for	for	IN
37894	1161	23	the	the	DT
37894	1161	24	fact	fact	NN
37894	1161	25	that	that	IN
37894	1161	26	at	at	IN
37894	1161	27	no	no	DT
37894	1161	28	time	time	NN
37894	1161	29	in	in	IN
37894	1161	30	the	the	DT
37894	1161	31	course	course	NN
37894	1161	32	of	of	IN
37894	1161	33	this	this	DT
37894	1161	34	study	study	NN
37894	1161	35	from	from	IN
37894	1161	36	1945	1945	CD
37894	1161	37	to	to	IN
37894	1161	38	the	the	DT
37894	1161	39	present	present	JJ
37894	1161	40	have	have	VBP
37894	1161	41	comparable	comparable	JJ
37894	1161	42	densities	density	NNS
37894	1161	43	been	be	VBN
37894	1161	44	obtained	obtain	VBN
37894	1161	45	this	this	DT
37894	1161	46	early	early	JJ
37894	1161	47	in	in	IN
37894	1161	48	the	the	DT
37894	1161	49	migration	migration	NN
37894	1161	50	period	period	NN
37894	1161	51	.	.	.
37894	1162	1	Examination	examination	NN
37894	1162	2	of	of	IN
37894	1162	3	the	the	DT
37894	1162	4	"	"	``
37894	1162	5	Remarks	Remarks	NNPS
37894	1162	6	"	"	''
37894	1162	7	section	section	NN
37894	1162	8	of	of	IN
37894	1162	9	the	the	DT
37894	1162	10	original	original	JJ
37894	1162	11	data	data	NN
37894	1162	12	sheets	sheet	NNS
37894	1162	13	from	from	IN
37894	1162	14	Lawrence	Lawrence	NNP
37894	1162	15	show	show	VBP
37894	1162	16	frequent	frequent	JJ
37894	1162	17	mention	mention	NN
37894	1162	18	of	of	IN
37894	1162	19	"	"	``
37894	1162	20	duck	duck	NN
37894	1162	21	-	-	HYPH
37894	1162	22	like	like	JJ
37894	1162	23	"	"	''
37894	1162	24	birds	bird	NNS
37894	1162	25	passing	pass	VBG
37894	1162	26	before	before	IN
37894	1162	27	the	the	DT
37894	1162	28	moon	moon	NN
37894	1162	29	.	.	.
37894	1163	1	We	-PRON-	PRP
37894	1163	2	may	may	MD
37894	1163	3	infer	infer	VB
37894	1163	4	from	from	IN
37894	1163	5	these	these	DT
37894	1163	6	notations	notation	NNS
37894	1163	7	that	that	WDT
37894	1163	8	a	a	DT
37894	1163	9	considerable	considerable	JJ
37894	1163	10	part	part	NN
37894	1163	11	of	of	IN
37894	1163	12	the	the	DT
37894	1163	13	overhead	overhead	JJ
37894	1163	14	flight	flight	NN
37894	1163	15	was	be	VBD
37894	1163	16	composed	compose	VBN
37894	1163	17	of	of	IN
37894	1163	18	ducks	duck	NNS
37894	1163	19	and	and	CC
37894	1163	20	other	other	JJ
37894	1163	21	aquatic	aquatic	JJ
37894	1163	22	birds	bird	NNS
37894	1163	23	that	that	WDT
37894	1163	24	normally	normally	RB
37894	1163	25	leave	leave	VBP
37894	1163	26	the	the	DT
37894	1163	27	southern	southern	JJ
37894	1163	28	United	United	NNP
37894	1163	29	States	States	NNP
37894	1163	30	before	before	IN
37894	1163	31	the	the	DT
37894	1163	32	main	main	JJ
37894	1163	33	body	body	NN
37894	1163	34	of	of	IN
37894	1163	35	transient	transient	JJ
37894	1163	36	species	specie	NNS
37894	1163	37	reach	reach	VBP
37894	1163	38	there	there	RB
37894	1163	39	.	.	.
37894	1164	1	The	the	DT
37894	1164	2	heavy	heavy	JJ
37894	1164	3	flight	flight	NN
37894	1164	4	densities	density	NNS
37894	1164	5	at	at	IN
37894	1164	6	Lawrence	Lawrence	NNP
37894	1164	7	may	may	MD
37894	1164	8	likewise	likewise	RB
37894	1164	9	have	have	VB
37894	1164	10	contained	contain	VBN
37894	1164	11	certain	certain	JJ
37894	1164	12	Fringillidae	Fringillidae	NNP
37894	1164	13	,	,	,
37894	1164	14	Motacillidae	Motacillidae	NNP
37894	1164	15	,	,	,
37894	1164	16	Sylviidae	Sylviidae	NNP
37894	1164	17	,	,	,
37894	1164	18	and	and	CC
37894	1164	19	other	other	JJ
37894	1164	20	passerine	passerine	NN
37894	1164	21	birds	bird	NNS
37894	1164	22	that	that	DT
37894	1164	23	winter	winter	NN
37894	1164	24	mainly	mainly	RB
37894	1164	25	in	in	IN
37894	1164	26	the	the	DT
37894	1164	27	southern	southern	JJ
37894	1164	28	United	United	NNP
37894	1164	29	States	States	NNP
37894	1164	30	and	and	CC
37894	1164	31	which	which	WDT
37894	1164	32	are	be	VBP
37894	1164	33	known	know	VBN
37894	1164	34	to	to	TO
37894	1164	35	begin	begin	VB
37894	1164	36	their	-PRON-	PRP$
37894	1164	37	return	return	NN
37894	1164	38	northward	northward	RB
37894	1164	39	in	in	IN
37894	1164	40	March	March	NNP
37894	1164	41	or	or	CC
37894	1164	42	even	even	RB
37894	1164	43	earlier	early	RBR
37894	1164	44	.	.	.
37894	1165	1	Observations	observation	NNS
37894	1165	2	in	in	IN
37894	1165	3	1948	1948	CD
37894	1165	4	at	at	IN
37894	1165	5	Lawrence	Lawrence	NNP
37894	1165	6	in	in	IN
37894	1165	7	April	April	NNP
37894	1165	8	were	be	VBD
37894	1165	9	hindered	hinder	VBN
37894	1165	10	by	by	IN
37894	1165	11	clouds	cloud	NNS
37894	1165	12	,	,	,
37894	1165	13	and	and	CC
37894	1165	14	in	in	IN
37894	1165	15	May	May	NNP
37894	1165	16	no	no	DT
37894	1165	17	studies	study	NNS
37894	1165	18	were	be	VBD
37894	1165	19	attempted	attempt	VBN
37894	1165	20	.	.	.
37894	1166	1	However	however	RB
37894	1166	2	,	,	,
37894	1166	3	we	-PRON-	PRP
37894	1166	4	do	do	VBP
37894	1166	5	have	have	VB
37894	1166	6	at	at	IN
37894	1166	7	hand	hand	NN
37894	1166	8	two	two	CD
37894	1166	9	excellent	excellent	JJ
37894	1166	10	sets	set	NNS
37894	1166	11	of	of	IN
37894	1166	12	data	datum	NNS
37894	1166	13	recorded	record	VBN
37894	1166	14	at	at	IN
37894	1166	15	Lawrence	Lawrence	NNP
37894	1166	16	on	on	IN
37894	1166	17	the	the	DT
37894	1166	18	nights	night	NNS
37894	1166	19	of	of	IN
37894	1166	20	May	May	NNP
37894	1166	21	3	3	CD
37894	1166	22	-	-	SYM
37894	1166	23	4	4	CD
37894	1166	24	and	and	CC
37894	1166	25	May	May	NNP
37894	1166	26	5	5	CD
37894	1166	27	-	-	SYM
37894	1166	28	6	6	CD
37894	1166	29	,	,	,
37894	1166	30	1947	1947	CD
37894	1166	31	,	,	,
37894	1166	32	when	when	WRB
37894	1166	33	the	the	DT
37894	1166	34	density	density	NN
37894	1166	35	was	be	VBD
37894	1166	36	also	also	RB
37894	1166	37	extremely	extremely	RB
37894	1166	38	high	high	JJ
37894	1166	39	.	.	.
37894	1167	1	At	at	IN
37894	1167	2	Ottumwa	Ottumwa	NNP
37894	1167	3	,	,	,
37894	1167	4	Iowa	Iowa	NNP
37894	1167	5	,	,	,
37894	1167	6	where	where	WRB
37894	1167	7	a	a	DT
37894	1167	8	splendid	splendid	JJ
37894	1167	9	cooperative	cooperative	JJ
37894	1167	10	effort	effort	NN
37894	1167	11	on	on	IN
37894	1167	12	the	the	DT
37894	1167	13	part	part	NN
37894	1167	14	of	of	IN
37894	1167	15	the	the	DT
37894	1167	16	local	local	JJ
37894	1167	17	ornithologists	ornithologist	NNS
37894	1167	18	resulted	result	VBD
37894	1167	19	in	in	IN
37894	1167	20	forty	forty	CD
37894	1167	21	-	-	HYPH
37894	1167	22	four	four	CD
37894	1167	23	hours	hour	NNS
37894	1167	24	of	of	IN
37894	1167	25	observation	observation	NN
37894	1167	26	in	in	IN
37894	1167	27	April	April	NNP
37894	1167	28	and	and	CC
37894	1167	29	May	May	NNP
37894	1167	30	,	,	,
37894	1167	31	densities	density	NNS
37894	1167	32	were	be	VBD
37894	1167	33	near	near	IN
37894	1167	34	the	the	DT
37894	1167	35	maximum	maximum	NN
37894	1167	36	for	for	IN
37894	1167	37	all	all	DT
37894	1167	38	stations	station	NNS
37894	1167	39	.	.	.
37894	1168	1	Considering	consider	VBG
37894	1168	2	this	this	DT
37894	1168	3	fact	fact	NN
37894	1168	4	along	along	IN
37894	1168	5	with	with	IN
37894	1168	6	results	result	NNS
37894	1168	7	at	at	IN
37894	1168	8	Lawrence	Lawrence	NNP
37894	1168	9	and	and	CC
37894	1168	10	other	other	JJ
37894	1168	11	mid	mid	JJ
37894	1168	12	-	-	JJ
37894	1168	13	western	western	JJ
37894	1168	14	stations	station	NNS
37894	1168	15	where	where	WRB
37894	1168	16	cloud	cloud	NNP
37894	1168	17	cover	cover	NNP
37894	1168	18	did	do	VBD
37894	1168	19	not	not	RB
37894	1168	20	interfere	interfere	VB
37894	1168	21	at	at	IN
37894	1168	22	the	the	DT
37894	1168	23	critical	critical	JJ
37894	1168	24	periods	period	NNS
37894	1168	25	of	of	IN
37894	1168	26	observation	observation	NN
37894	1168	27	,	,	,
37894	1168	28	we	-PRON-	PRP
37894	1168	29	have	have	VBP
37894	1168	30	here	here	RB
37894	1168	31	evidence	evidence	NN
37894	1168	32	supporting	support	VBG
37894	1168	33	the	the	DT
37894	1168	34	generally	generally	RB
37894	1168	35	held	hold	VBN
37894	1168	36	thesis	thesis	NN
37894	1168	37	that	that	IN
37894	1168	38	eastern	eastern	JJ
37894	1168	39	Kansas	Kansas	NNP
37894	1168	40	,	,	,
37894	1168	41	Missouri	Missouri	NNP
37894	1168	42	,	,	,
37894	1168	43	and	and	CC
37894	1168	44	Iowa	Iowa	NNP
37894	1168	45	lie	lie	VBP
37894	1168	46	on	on	IN
37894	1168	47	a	a	DT
37894	1168	48	principal	principal	JJ
37894	1168	49	migratory	migratory	NN
37894	1168	50	flyway	flyway	NN
37894	1168	51	.	.	.
37894	1169	1	Stations	station	NNS
37894	1169	2	in	in	IN
37894	1169	3	Minnesota	Minnesota	NNP
37894	1169	4	,	,	,
37894	1169	5	Illinois	Illinois	NNP
37894	1169	6	,	,	,
37894	1169	7	Michigan	Michigan	NNP
37894	1169	8	,	,	,
37894	1169	9	Massachusetts	Massachusetts	NNP
37894	1169	10	,	,	,
37894	1169	11	and	and	CC
37894	1169	12	Ontario	Ontario	NNP
37894	1169	13	were	be	VBD
37894	1169	14	either	either	CC
37894	1169	15	operated	operate	VBN
37894	1169	16	for	for	IN
37894	1169	17	only	only	JJ
37894	1169	18	parts	part	NNS
37894	1169	19	of	of	IN
37894	1169	20	one	one	CD
37894	1169	21	or	or	CC
37894	1169	22	two	two	CD
37894	1169	23	nights	night	NNS
37894	1169	24	,	,	,
37894	1169	25	or	or	CC
37894	1169	26	else	else	RB
37894	1169	27	clouds	cloud	NNS
37894	1169	28	seriously	seriously	RB
37894	1169	29	interfered	interfere	VBD
37894	1169	30	with	with	IN
37894	1169	31	observations	observation	NNS
37894	1169	32	,	,	,
37894	1169	33	resulting	result	VBG
37894	1169	34	in	in	IN
37894	1169	35	discontinuous	discontinuous	JJ
37894	1169	36	counts	count	NNS
37894	1169	37	.	.	.
37894	1170	1	It	-PRON-	PRP
37894	1170	2	may	may	MD
37894	1170	3	be	be	VB
37894	1170	4	hoped	hope	VBN
37894	1170	5	that	that	IN
37894	1170	6	future	future	JJ
37894	1170	7	studies	study	NNS
37894	1170	8	will	will	MD
37894	1170	9	include	include	VB
37894	1170	10	an	an	DT
37894	1170	11	adequate	adequate	JJ
37894	1170	12	representation	representation	NN
37894	1170	13	of	of	IN
37894	1170	14	stations	station	NNS
37894	1170	15	in	in	IN
37894	1170	16	these	these	DT
37894	1170	17	states	state	NNS
37894	1170	18	and	and	CC
37894	1170	19	that	that	IN
37894	1170	20	observations	observation	NNS
37894	1170	21	will	will	MD
37894	1170	22	be	be	VB
37894	1170	23	extensive	extensive	JJ
37894	1170	24	enough	enough	RB
37894	1170	25	to	to	TO
37894	1170	26	permit	permit	VB
37894	1170	27	conclusions	conclusion	NNS
37894	1170	28	regarding	regard	VBG
37894	1170	29	the	the	DT
37894	1170	30	density	density	NN
37894	1170	31	and	and	CC
37894	1170	32	direction	direction	NN
37894	1170	33	of	of	IN
37894	1170	34	migration	migration	NN
37894	1170	35	.	.	.
37894	1171	1	Charleston	Charleston	NNP
37894	1171	2	,	,	,
37894	1171	3	South	South	NNP
37894	1171	4	Carolina	Carolina	NNP
37894	1171	5	,	,	,
37894	1171	6	which	which	WDT
37894	1171	7	does	do	VBZ
37894	1171	8	not	not	RB
37894	1171	9	conveniently	conveniently	RB
37894	1171	10	fall	fall	VB
37894	1171	11	in	in	IN
37894	1171	12	any	any	DT
37894	1171	13	of	of	IN
37894	1171	14	the	the	DT
37894	1171	15	geographic	geographic	JJ
37894	1171	16	regions	region	NNS
37894	1171	17	so	so	RB
37894	1171	18	far	far	RB
37894	1171	19	discussed	discuss	VBN
37894	1171	20	,	,	,
37894	1171	21	had	have	VBD
37894	1171	22	,	,	,
37894	1171	23	to	to	IN
37894	1171	24	me	-PRON-	PRP
37894	1171	25	,	,	,
37894	1171	26	a	a	DT
37894	1171	27	surprisingly	surprisingly	RB
37894	1171	28	low	low	JJ
37894	1171	29	flight	flight	NN
37894	1171	30	density	density	NN
37894	1171	31	;	;	:
37894	1171	32	twenty	twenty	CD
37894	1171	33	-	-	HYPH
37894	1171	34	two	two	CD
37894	1171	35	hours	hour	NNS
37894	1171	36	of	of	IN
37894	1171	37	observation	observation	NN
37894	1171	38	there	there	RB
37894	1171	39	in	in	IN
37894	1171	40	March	March	NNP
37894	1171	41	,	,	,
37894	1171	42	April	April	NNP
37894	1171	43	,	,	,
37894	1171	44	and	and	CC
37894	1171	45	May	May	NNP
37894	1171	46	yielded	yield	VBD
37894	1171	47	a	a	DT
37894	1171	48	total	total	JJ
37894	1171	49	flight	flight	NN
37894	1171	50	density	density	NN
37894	1171	51	of	of	IN
37894	1171	52	only	only	RB
37894	1171	53	3,000	3,000	CD
37894	1171	54	birds	bird	NNS
37894	1171	55	.	.	.
37894	1172	1	This	this	DT
37894	1172	2	is	be	VBZ
37894	1172	3	less	less	JJR
37894	1172	4	,	,	,
37894	1172	5	for	for	IN
37894	1172	6	example	example	NN
37894	1172	7	,	,	,
37894	1172	8	than	than	IN
37894	1172	9	the	the	DT
37894	1172	10	number	number	NN
37894	1172	11	of	of	IN
37894	1172	12	birds	bird	NNS
37894	1172	13	computed	compute	VBN
37894	1172	14	to	to	TO
37894	1172	15	have	have	VB
37894	1172	16	passed	pass	VBN
37894	1172	17	Lawrence	Lawrence	NNP
37894	1172	18	,	,	,
37894	1172	19	Kansas	Kansas	NNP
37894	1172	20	,	,	,
37894	1172	21	in	in	IN
37894	1172	22	one	one	CD
37894	1172	23	hour	hour	NN
37894	1172	24	,	,	,
37894	1172	25	or	or	CC
37894	1172	26	to	to	TO
37894	1172	27	have	have	VB
37894	1172	28	passed	pass	VBN
37894	1172	29	Progreso	Progreso	NNP
37894	1172	30	,	,	,
37894	1172	31	Yucatán	Yucatán	NNP
37894	1172	32	,	,	,
37894	1172	33	in	in	IN
37894	1172	34	one	one	CD
37894	1172	35	twenty	twenty	CD
37894	1172	36	-	-	HYPH
37894	1172	37	minute	minute	NN
37894	1172	38	interval	interval	NN
37894	1172	39	!	!	.
37894	1173	1	Possibly	possibly	RB
37894	1173	2	observations	observation	NNS
37894	1173	3	at	at	IN
37894	1173	4	Charleston	Charleston	NNP
37894	1173	5	merely	merely	RB
37894	1173	6	chanced	chance	VBD
37894	1173	7	to	to	TO
37894	1173	8	fall	fall	VB
37894	1173	9	on	on	IN
37894	1173	10	nights	night	NNS
37894	1173	11	of	of	IN
37894	1173	12	inexplicably	inexplicably	RB
37894	1173	13	low	low	JJ
37894	1173	14	densities	density	NNS
37894	1173	15	;	;	:
37894	1173	16	further	further	JJ
37894	1173	17	observations	observation	NNS
37894	1173	18	will	will	MD
37894	1173	19	be	be	VB
37894	1173	20	required	require	VBN
37894	1173	21	to	to	TO
37894	1173	22	clear	clear	VB
37894	1173	23	up	up	RP
37894	1173	24	this	this	DT
37894	1173	25	uncertainty	uncertainty	NN
37894	1173	26	.	.	.
37894	1174	1	E.	E.	NNP
37894	1174	2	MIGRATION	MIGRATION	NNP
37894	1174	3	AND	and	CC
37894	1174	4	METEOROLOGICAL	METEOROLOGICAL	NNP
37894	1174	5	CONDITIONS	CONDITIONS	NNP
37894	1174	6	The	the	DT
37894	1174	7	belief	belief	NN
37894	1174	8	that	that	IN
37894	1174	9	winds	wind	NNS
37894	1174	10	affect	affect	VBP
37894	1174	11	the	the	DT
37894	1174	12	migration	migration	NN
37894	1174	13	of	of	IN
37894	1174	14	birds	bird	NNS
37894	1174	15	is	be	VBZ
37894	1174	16	an	an	DT
37894	1174	17	old	old	JJ
37894	1174	18	one	one	CD
37894	1174	19	.	.	.
37894	1175	1	The	the	DT
37894	1175	2	extent	extent	NN
37894	1175	3	to	to	TO
37894	1175	4	which	which	WDT
37894	1175	5	winds	wind	NNS
37894	1175	6	do	do	VBP
37894	1175	7	so	so	RB
37894	1175	8	,	,	,
37894	1175	9	and	and	CC
37894	1175	10	the	the	DT
37894	1175	11	precise	precise	JJ
37894	1175	12	manner	manner	NN
37894	1175	13	in	in	IN
37894	1175	14	which	which	WDT
37894	1175	15	they	-PRON-	PRP
37894	1175	16	operate	operate	VBP
37894	1175	17	,	,	,
37894	1175	18	have	have	VBP
37894	1175	19	not	not	RB
37894	1175	20	until	until	IN
37894	1175	21	rather	rather	RB
37894	1175	22	recently	recently	RB
37894	1175	23	been	be	VBN
37894	1175	24	the	the	DT
37894	1175	25	subject	subject	NN
37894	1175	26	of	of	IN
37894	1175	27	real	real	JJ
37894	1175	28	investigation	investigation	NN
37894	1175	29	.	.	.
37894	1176	1	With	with	IN
37894	1176	2	modern	modern	JJ
37894	1176	3	advances	advance	NNS
37894	1176	4	in	in	IN
37894	1176	5	aerodynamics	aerodynamic	NNS
37894	1176	6	and	and	CC
37894	1176	7	the	the	DT
37894	1176	8	development	development	NN
37894	1176	9	of	of	IN
37894	1176	10	the	the	DT
37894	1176	11	pressure	pressure	NN
37894	1176	12	-	-	HYPH
37894	1176	13	pattern	pattern	NN
37894	1176	14	system	system	NN
37894	1176	15	of	of	IN
37894	1176	16	flying	fly	VBG
37894	1176	17	in	in	IN
37894	1176	18	aviation	aviation	NN
37894	1176	19	,	,	,
37894	1176	20	attention	attention	NN
37894	1176	21	of	of	IN
37894	1176	22	ornithologists	ornithologist	NNS
37894	1176	23	has	have	VBZ
37894	1176	24	been	be	VBN
37894	1176	25	directed	direct	VBN
37894	1176	26	anew	anew	RB
37894	1176	27	to	to	IN
37894	1176	28	the	the	DT
37894	1176	29	part	part	NN
37894	1176	30	that	that	WDT
37894	1176	31	air	air	NN
37894	1176	32	currents	current	NNS
37894	1176	33	may	may	MD
37894	1176	34	play	play	VB
37894	1176	35	in	in	IN
37894	1176	36	the	the	DT
37894	1176	37	normal	normal	JJ
37894	1176	38	migrations	migration	NNS
37894	1176	39	of	of	IN
37894	1176	40	birds	bird	NNS
37894	1176	41	.	.	.
37894	1177	1	In	in	IN
37894	1177	2	America	America	NNP
37894	1177	3	,	,	,
37894	1177	4	a	a	DT
37894	1177	5	brief	brief	JJ
37894	1177	6	article	article	NN
37894	1177	7	by	by	IN
37894	1177	8	Bagg	Bagg	NNP
37894	1177	9	(	(	-LRB-
37894	1177	10	1948	1948	CD
37894	1177	11	)	)	-RRB-
37894	1177	12	,	,	,
37894	1177	13	correlating	correlate	VBG
37894	1177	14	the	the	DT
37894	1177	15	observed	observed	JJ
37894	1177	16	abundance	abundance	NN
37894	1177	17	of	of	IN
37894	1177	18	migrants	migrant	NNS
37894	1177	19	in	in	IN
37894	1177	20	New	New	NNP
37894	1177	21	England	England	NNP
37894	1177	22	with	with	IN
37894	1177	23	the	the	DT
37894	1177	24	pressure	pressure	NN
37894	1177	25	pattern	pattern	NN
37894	1177	26	obtaining	obtain	VBG
37894	1177	27	at	at	IN
37894	1177	28	the	the	DT
37894	1177	29	time	time	NN
37894	1177	30	,	,	,
37894	1177	31	has	have	VBZ
37894	1177	32	been	be	VBN
37894	1177	33	supplemented	supplement	VBN
37894	1177	34	by	by	IN
37894	1177	35	the	the	DT
37894	1177	36	unpublished	unpublished	JJ
37894	1177	37	work	work	NN
37894	1177	38	of	of	IN
37894	1177	39	Winnifred	Winnifred	NNP
37894	1177	40	Smith	Smith	NNP
37894	1177	41	.	.	.
37894	1178	1	Also	also	RB
37894	1178	2	Landsberg	Landsberg	NNP
37894	1178	3	(	(	-LRB-
37894	1178	4	1948	1948	CD
37894	1178	5	)	)	-RRB-
37894	1178	6	has	have	VBZ
37894	1178	7	pointed	point	VBN
37894	1178	8	out	out	RP
37894	1178	9	the	the	DT
37894	1178	10	close	close	JJ
37894	1178	11	correspondence	correspondence	NN
37894	1178	12	between	between	IN
37894	1178	13	the	the	DT
37894	1178	14	routes	route	NNS
37894	1178	15	of	of	IN
37894	1178	16	certain	certain	JJ
37894	1178	17	long	long	JJ
37894	1178	18	-	-	HYPH
37894	1178	19	distance	distance	NN
37894	1178	20	migrants	migrant	NNS
37894	1178	21	and	and	CC
37894	1178	22	prevailing	prevail	VBG
37894	1178	23	wind	wind	NN
37894	1178	24	trajectories	trajectory	NNS
37894	1178	25	.	.	.
37894	1179	1	All	all	DT
37894	1179	2	of	of	IN
37894	1179	3	this	this	DT
37894	1179	4	is	be	VBZ
37894	1179	5	basis	basis	NN
37894	1179	6	for	for	IN
37894	1179	7	the	the	DT
37894	1179	8	hypothesis	hypothesis	NN
37894	1179	9	that	that	WDT
37894	1179	10	most	most	JJS
37894	1179	11	birds	bird	NNS
37894	1179	12	travel	travel	VBP
37894	1179	13	along	along	IN
37894	1179	14	definite	definite	JJ
37894	1179	15	air	air	NN
37894	1179	16	currents	current	NNS
37894	1179	17	,	,	,
37894	1179	18	riding	ride	VBG
37894	1179	19	with	with	IN
37894	1179	20	the	the	DT
37894	1179	21	wind	wind	NN
37894	1179	22	.	.	.
37894	1180	1	Since	since	IN
37894	1180	2	the	the	DT
37894	1180	3	flow	flow	NN
37894	1180	4	of	of	IN
37894	1180	5	the	the	DT
37894	1180	6	air	air	NN
37894	1180	7	moves	move	NNS
37894	1180	8	clockwise	clockwise	VBP
37894	1180	9	around	around	IN
37894	1180	10	a	a	DT
37894	1180	11	high	high	JJ
37894	1180	12	pressure	pressure	NN
37894	1180	13	area	area	NN
37894	1180	14	and	and	CC
37894	1180	15	counterclockwise	counterclockwise	VB
37894	1180	16	around	around	RB
37894	1180	17	a	a	DT
37894	1180	18	low	low	JJ
37894	1180	19	pressure	pressure	NN
37894	1180	20	area	area	NN
37894	1180	21	,	,	,
37894	1180	22	the	the	DT
37894	1180	23	birds	bird	NNS
37894	1180	24	are	be	VBP
37894	1180	25	directed	direct	VBN
37894	1180	26	away	away	RB
37894	1180	27	from	from	IN
37894	1180	28	the	the	DT
37894	1180	29	"	"	``
37894	1180	30	high	high	JJ
37894	1180	31	"	"	''
37894	1180	32	and	and	CC
37894	1180	33	toward	toward	IN
37894	1180	34	the	the	DT
37894	1180	35	center	center	NN
37894	1180	36	of	of	IN
37894	1180	37	the	the	DT
37894	1180	38	"	"	``
37894	1180	39	low	low	JJ
37894	1180	40	.	.	.
37894	1180	41	"	"	''
37894	1181	1	The	the	DT
37894	1181	2	arrival	arrival	NN
37894	1181	3	of	of	IN
37894	1181	4	birds	bird	NNS
37894	1181	5	in	in	IN
37894	1181	6	a	a	DT
37894	1181	7	particular	particular	JJ
37894	1181	8	area	area	NN
37894	1181	9	can	can	MD
37894	1181	10	be	be	VB
37894	1181	11	predicted	predict	VBN
37894	1181	12	from	from	IN
37894	1181	13	a	a	DT
37894	1181	14	study	study	NN
37894	1181	15	of	of	IN
37894	1181	16	the	the	DT
37894	1181	17	surrounding	surround	VBG
37894	1181	18	meteorological	meteorological	JJ
37894	1181	19	conditions	condition	NNS
37894	1181	20	,	,	,
37894	1181	21	and	and	CC
37894	1181	22	the	the	DT
37894	1181	23	evidence	evidence	NN
37894	1181	24	in	in	IN
37894	1181	25	support	support	NN
37894	1181	26	of	of	IN
37894	1181	27	the	the	DT
37894	1181	28	hypothesis	hypothesis	NN
37894	1181	29	rests	rest	NNS
37894	1181	30	mainly	mainly	RB
37894	1181	31	upon	upon	IN
37894	1181	32	the	the	DT
37894	1181	33	success	success	NN
37894	1181	34	of	of	IN
37894	1181	35	these	these	DT
37894	1181	36	predictions	prediction	NNS
37894	1181	37	in	in	IN
37894	1181	38	terms	term	NNS
37894	1181	39	of	of	IN
37894	1181	40	observations	observation	NNS
37894	1181	41	in	in	IN
37894	1181	42	the	the	DT
37894	1181	43	field	field	NN
37894	1181	44	.	.	.
37894	1182	1	From	from	IN
37894	1182	2	some	some	DT
37894	1182	3	points	point	NNS
37894	1182	4	of	of	IN
37894	1182	5	view	view	NN
37894	1182	6	,	,	,
37894	1182	7	this	this	DT
37894	1182	8	hypothesis	hypothesis	NN
37894	1182	9	is	be	VBZ
37894	1182	10	an	an	DT
37894	1182	11	attractive	attractive	JJ
37894	1182	12	one	one	NN
37894	1182	13	.	.	.
37894	1183	1	It	-PRON-	PRP
37894	1183	2	explains	explain	VBZ
37894	1183	3	how	how	WRB
37894	1183	4	long	long	JJ
37894	1183	5	distances	distance	NNS
37894	1183	6	involved	involve	VBN
37894	1183	7	in	in	IN
37894	1183	8	many	many	JJ
37894	1183	9	migrations	migration	NNS
37894	1183	10	may	may	MD
37894	1183	11	be	be	VB
37894	1183	12	accomplished	accomplish	VBN
37894	1183	13	with	with	IN
37894	1183	14	a	a	DT
37894	1183	15	minimum	minimum	NN
37894	1183	16	of	of	IN
37894	1183	17	effort	effort	NN
37894	1183	18	.	.	.
37894	1184	1	But	but	CC
37894	1184	2	the	the	DT
37894	1184	3	ways	way	NNS
37894	1184	4	in	in	IN
37894	1184	5	which	which	WDT
37894	1184	6	winds	wind	NNS
37894	1184	7	affect	affect	VBP
37894	1184	8	migration	migration	NN
37894	1184	9	need	need	VBP
37894	1184	10	analysis	analysis	NN
37894	1184	11	on	on	IN
37894	1184	12	a	a	DT
37894	1184	13	broader	broad	JJR
37894	1184	14	scale	scale	NN
37894	1184	15	than	than	IN
37894	1184	16	can	can	MD
37894	1184	17	be	be	VB
37894	1184	18	made	make	VBN
37894	1184	19	from	from	IN
37894	1184	20	purely	purely	RB
37894	1184	21	local	local	JJ
37894	1184	22	vantage	vantage	NN
37894	1184	23	points	point	NNS
37894	1184	24	.	.	.
37894	1185	1	Studies	study	NNS
37894	1185	2	of	of	IN
37894	1185	3	the	the	DT
37894	1185	4	problem	problem	NN
37894	1185	5	must	must	MD
37894	1185	6	be	be	VB
37894	1185	7	implemented	implement	VBN
37894	1185	8	by	by	IN
37894	1185	9	data	datum	NNS
37894	1185	10	accumulated	accumulate	VBN
37894	1185	11	from	from	IN
37894	1185	12	a	a	DT
37894	1185	13	study	study	NN
37894	1185	14	of	of	IN
37894	1185	15	the	the	DT
37894	1185	16	process	process	NN
37894	1185	17	in	in	IN
37894	1185	18	action	action	NN
37894	1185	19	,	,	,
37894	1185	20	not	not	RB
37894	1185	21	merely	merely	RB
37894	1185	22	from	from	IN
37894	1185	23	evidence	evidence	NN
37894	1185	24	inferred	infer	VBN
37894	1185	25	from	from	IN
37894	1185	26	the	the	DT
37894	1185	27	visible	visible	JJ
37894	1185	28	results	result	NNS
37894	1185	29	that	that	WDT
37894	1185	30	follow	follow	VBP
37894	1185	31	it	-PRON-	PRP
37894	1185	32	.	.	.
37894	1186	1	Although	although	IN
37894	1186	2	several	several	JJ
37894	1186	3	hundred	hundred	CD
37894	1186	4	stations	station	NNS
37894	1186	5	operating	operate	VBG
37894	1186	6	simultaneously	simultaneously	RB
37894	1186	7	would	would	MD
37894	1186	8	surely	surely	RB
37894	1186	9	yield	yield	VB
37894	1186	10	more	more	JJR
37894	1186	11	definite	definite	JJ
37894	1186	12	results	result	NNS
37894	1186	13	,	,	,
37894	1186	14	the	the	DT
37894	1186	15	telescopic	telescopic	JJ
37894	1186	16	observations	observation	NNS
37894	1186	17	in	in	IN
37894	1186	18	1948	1948	CD
37894	1186	19	offer	offer	VBP
37894	1186	20	a	a	DT
37894	1186	21	splendid	splendid	JJ
37894	1186	22	opportunity	opportunity	NN
37894	1186	23	to	to	TO
37894	1186	24	test	test	VB
37894	1186	25	the	the	DT
37894	1186	26	theory	theory	NN
37894	1186	27	on	on	IN
37894	1186	28	a	a	DT
37894	1186	29	continental	continental	JJ
37894	1186	30	scale	scale	NN
37894	1186	31	.	.	.
37894	1187	1	The	the	DT
37894	1187	2	approach	approach	NN
37894	1187	3	employed	employ	VBN
37894	1187	4	has	have	VBZ
37894	1187	5	been	be	VBN
37894	1187	6	to	to	TO
37894	1187	7	plot	plot	VB
37894	1187	8	on	on	IN
37894	1187	9	maps	map	NNS
37894	1187	10	sector	sector	NN
37894	1187	11	vectors	vector	NNS
37894	1187	12	and	and	CC
37894	1187	13	vector	vector	NN
37894	1187	14	resultants	resultant	NNS
37894	1187	15	that	that	WDT
37894	1187	16	express	express	VBP
37894	1187	17	the	the	DT
37894	1187	18	directional	directional	JJ
37894	1187	19	trends	trend	NNS
37894	1187	20	of	of	IN
37894	1187	21	migration	migration	NN
37894	1187	22	in	in	IN
37894	1187	23	the	the	DT
37894	1187	24	eastern	eastern	JJ
37894	1187	25	United	United	NNP
37894	1187	26	States	States	NNP
37894	1187	27	and	and	CC
37894	1187	28	the	the	DT
37894	1187	29	Gulf	Gulf	NNP
37894	1187	30	region	region	NN
37894	1187	31	,	,	,
37894	1187	32	and	and	CC
37894	1187	33	to	to	TO
37894	1187	34	compare	compare	VB
37894	1187	35	the	the	DT
37894	1187	36	data	datum	NNS
37894	1187	37	on	on	IN
37894	1187	38	these	these	DT
37894	1187	39	maps	map	NNS
37894	1187	40	with	with	IN
37894	1187	41	data	datum	NNS
37894	1187	42	supplied	supply	VBN
37894	1187	43	by	by	IN
37894	1187	44	the	the	DT
37894	1187	45	U.	U.	NNP
37894	1187	46	S.	S.	NNP
37894	1187	47	Weather	Weather	NNP
37894	1187	48	Bureau	Bureau	NNP
37894	1187	49	regarding	regard	VBG
37894	1187	50	the	the	DT
37894	1187	51	directions	direction	NNS
37894	1187	52	and	and	CC
37894	1187	53	velocities	velocity	NNS
37894	1187	54	of	of	IN
37894	1187	55	the	the	DT
37894	1187	56	winds	wind	NNS
37894	1187	57	,	,	,
37894	1187	58	the	the	DT
37894	1187	59	location	location	NN
37894	1187	60	of	of	IN
37894	1187	61	high	high	JJ
37894	1187	62	and	and	CC
37894	1187	63	low	low	JJ
37894	1187	64	pressure	pressure	NN
37894	1187	65	areas	area	NNS
37894	1187	66	,	,	,
37894	1187	67	the	the	DT
37894	1187	68	movement	movement	NN
37894	1187	69	of	of	IN
37894	1187	70	cold	cold	JJ
37894	1187	71	and	and	CC
37894	1187	72	warm	warm	JJ
37894	1187	73	fronts	front	NNS
37894	1187	74	,	,	,
37894	1187	75	and	and	CC
37894	1187	76	the	the	DT
37894	1187	77	disposition	disposition	NN
37894	1187	78	of	of	IN
37894	1187	79	isobars	isobar	NNS
37894	1187	80	or	or	CC
37894	1187	81	lines	line	NNS
37894	1187	82	of	of	IN
37894	1187	83	equal	equal	JJ
37894	1187	84	pressure	pressure	NN
37894	1187	85	.	.	.
37894	1188	1	It	-PRON-	PRP
37894	1188	2	should	should	MD
37894	1188	3	be	be	VB
37894	1188	4	borne	bear	VBN
37894	1188	5	in	in	IN
37894	1188	6	mind	mind	NN
37894	1188	7	when	when	WRB
37894	1188	8	interpreting	interpret	VBG
37894	1188	9	these	these	DT
37894	1188	10	vectors	vector	NNS
37894	1188	11	that	that	IN
37894	1188	12	they	-PRON-	PRP
37894	1188	13	are	be	VBP
37894	1188	14	intended	intend	VBN
37894	1188	15	to	to	TO
37894	1188	16	represent	represent	VB
37894	1188	17	the	the	DT
37894	1188	18	directions	direction	NNS
37894	1188	19	of	of	IN
37894	1188	20	flight	flight	NN
37894	1188	21	only	only	RB
37894	1188	22	at	at	IN
37894	1188	23	the	the	DT
37894	1188	24	proximal	proximal	JJ
37894	1188	25	ends	end	NNS
37894	1188	26	,	,	,
37894	1188	27	or	or	CC
37894	1188	28	junction	junction	NN
37894	1188	29	points	point	NNS
37894	1188	30	,	,	,
37894	1188	31	of	of	IN
37894	1188	32	the	the	DT
37894	1188	33	arrows	arrow	NNS
37894	1188	34	.	.	.
37894	1189	1	The	the	DT
37894	1189	2	tendency	tendency	NN
37894	1189	3	of	of	IN
37894	1189	4	the	the	DT
37894	1189	5	eye	eye	NN
37894	1189	6	to	to	TO
37894	1189	7	follow	follow	VB
37894	1189	8	a	a	DT
37894	1189	9	vector	vector	NN
37894	1189	10	to	to	IN
37894	1189	11	its	-PRON-	PRP$
37894	1189	12	distal	distal	JJ
37894	1189	13	extremity	extremity	NN
37894	1189	14	should	should	MD
37894	1189	15	not	not	RB
37894	1189	16	be	be	VB
37894	1189	17	allowed	allow	VBN
37894	1189	18	to	to	TO
37894	1189	19	create	create	VB
37894	1189	20	the	the	DT
37894	1189	21	misapprehension	misapprehension	NN
37894	1189	22	that	that	IN
37894	1189	23	the	the	DT
37894	1189	24	actual	actual	JJ
37894	1189	25	flight	flight	NN
37894	1189	26	is	be	VBZ
37894	1189	27	supposed	suppose	VBN
37894	1189	28	to	to	TO
37894	1189	29	have	have	VB
37894	1189	30	continued	continue	VBN
37894	1189	31	on	on	IN
37894	1189	32	in	in	IN
37894	1189	33	a	a	DT
37894	1189	34	straight	straight	JJ
37894	1189	35	line	line	NN
37894	1189	36	to	to	IN
37894	1189	37	the	the	DT
37894	1189	38	map	map	NN
37894	1189	39	location	location	NN
37894	1189	40	occupied	occupy	VBN
37894	1189	41	by	by	IN
37894	1189	42	the	the	DT
37894	1189	43	arrowhead	arrowhead	NN
37894	1189	44	.	.	.
37894	1190	1	A	a	DT
37894	1190	2	fundamental	fundamental	JJ
37894	1190	3	difficulty	difficulty	NN
37894	1190	4	in	in	IN
37894	1190	5	the	the	DT
37894	1190	6	pressure	pressure	NN
37894	1190	7	-	-	HYPH
37894	1190	8	pattern	pattern	NN
37894	1190	9	theory	theory	NN
37894	1190	10	of	of	IN
37894	1190	11	migration	migration	NN
37894	1190	12	has	have	VBZ
37894	1190	13	no	no	DT
37894	1190	14	doubt	doubt	NN
37894	1190	15	already	already	RB
37894	1190	16	suggested	suggest	VBN
37894	1190	17	itself	-PRON-	PRP
37894	1190	18	to	to	IN
37894	1190	19	the	the	DT
37894	1190	20	reader	reader	NN
37894	1190	21	.	.	.
37894	1191	1	The	the	DT
37894	1191	2	difficulty	difficulty	NN
37894	1191	3	to	to	TO
37894	1191	4	which	which	WDT
37894	1191	5	I	-PRON-	PRP
37894	1191	6	refer	refer	VBP
37894	1191	7	is	be	VBZ
37894	1191	8	made	make	VBN
37894	1191	9	clear	clear	JJ
37894	1191	10	by	by	IN
37894	1191	11	asking	ask	VBG
37894	1191	12	two	two	CD
37894	1191	13	questions	question	NNS
37894	1191	14	.	.	.
37894	1192	1	How	how	WRB
37894	1192	2	can	can	MD
37894	1192	3	the	the	DT
37894	1192	4	birds	bird	NNS
37894	1192	5	ever	ever	RB
37894	1192	6	get	get	VBP
37894	1192	7	where	where	WRB
37894	1192	8	they	-PRON-	PRP
37894	1192	9	are	be	VBP
37894	1192	10	going	go	VBG
37894	1192	11	if	if	IN
37894	1192	12	they	-PRON-	PRP
37894	1192	13	are	be	VBP
37894	1192	14	dependent	dependent	JJ
37894	1192	15	upon	upon	IN
37894	1192	16	the	the	DT
37894	1192	17	whim	whim	NN
37894	1192	18	of	of	IN
37894	1192	19	the	the	DT
37894	1192	20	winds	wind	NNS
37894	1192	21	?	?	.
37894	1193	1	How	how	WRB
37894	1193	2	can	can	MD
37894	1193	3	pressure	pressure	NN
37894	1193	4	-	-	HYPH
37894	1193	5	pattern	pattern	NN
37894	1193	6	flying	flying	NN
37894	1193	7	be	be	VB
37894	1193	8	reconciled	reconcile	VBN
37894	1193	9	with	with	IN
37894	1193	10	the	the	DT
37894	1193	11	precision	precision	NN
37894	1193	12	birds	bird	NNS
37894	1193	13	are	be	VBP
37894	1193	14	supposed	suppose	VBN
37894	1193	15	to	to	TO
37894	1193	16	show	show	VB
37894	1193	17	in	in	IN
37894	1193	18	returning	return	VBG
37894	1193	19	year	year	NN
37894	1193	20	after	after	IN
37894	1193	21	year	year	NN
37894	1193	22	to	to	IN
37894	1193	23	the	the	DT
37894	1193	24	same	same	JJ
37894	1193	25	nesting	nesting	JJ
37894	1193	26	area	area	NN
37894	1193	27	?	?	.
37894	1194	1	The	the	DT
37894	1194	2	answer	answer	NN
37894	1194	3	is	be	VBZ
37894	1194	4	,	,	,
37894	1194	5	in	in	IN
37894	1194	6	part	part	NN
37894	1194	7	,	,	,
37894	1194	8	that	that	IN
37894	1194	9	,	,	,
37894	1194	10	if	if	IN
37894	1194	11	the	the	DT
37894	1194	12	wind	wind	NN
37894	1194	13	is	be	VBZ
37894	1194	14	a	a	DT
37894	1194	15	major	major	JJ
37894	1194	16	controlling	controlling	NN
37894	1194	17	influence	influence	NN
37894	1194	18	on	on	IN
37894	1194	19	the	the	DT
37894	1194	20	routes	route	NNS
37894	1194	21	birds	bird	NNS
37894	1194	22	follow	follow	VBP
37894	1194	23	,	,	,
37894	1194	24	there	there	EX
37894	1194	25	must	must	MD
37894	1194	26	be	be	VB
37894	1194	27	a	a	DT
37894	1194	28	rather	rather	RB
37894	1194	29	stable	stable	JJ
37894	1194	30	pattern	pattern	NN
37894	1194	31	of	of	IN
37894	1194	32	air	air	NN
37894	1194	33	currents	current	NNS
37894	1194	34	prevailing	prevail	VBG
37894	1194	35	from	from	IN
37894	1194	36	year	year	NN
37894	1194	37	to	to	IN
37894	1194	38	year	year	NN
37894	1194	39	.	.	.
37894	1195	1	Such	such	PDT
37894	1195	2	a	a	DT
37894	1195	3	situation	situation	NN
37894	1195	4	does	do	VBZ
37894	1195	5	in	in	IN
37894	1195	6	fact	fact	NN
37894	1195	7	exist	exist	VB
37894	1195	8	.	.	.
37894	1196	1	There	there	EX
37894	1196	2	are	be	VBP
37894	1196	3	maps	map	NNS
37894	1196	4	showing	show	VBG
37894	1196	5	wind	wind	NN
37894	1196	6	roses	rose	NNS
37894	1196	7	at	at	IN
37894	1196	8	750	750	CD
37894	1196	9	and	and	CC
37894	1196	10	1,500	1,500	CD
37894	1196	11	meters	meter	NNS
37894	1196	12	above	above	RB
37894	1196	13	mean	mean	VBP
37894	1196	14	sea	sea	NN
37894	1196	15	level	level	NN
37894	1196	16	during	during	IN
37894	1196	17	April	April	NNP
37894	1196	18	and	and	CC
37894	1196	19	May	May	NNP
37894	1196	20	(	(	-LRB-
37894	1196	21	Stevens	Stevens	NNP
37894	1196	22	,	,	,
37894	1196	23	1933	1933	CD
37894	1196	24	,	,	,
37894	1196	25	figs	fig	NNS
37894	1196	26	.	.	.
37894	1197	1	13	13	CD
37894	1197	2	-	-	SYM
37894	1197	3	14	14	CD
37894	1197	4	,	,	,
37894	1197	5	17	17	CD
37894	1197	6	-	-	SYM
37894	1197	7	18	18	CD
37894	1197	8	)	)	-RRB-
37894	1197	9	.	.	.
37894	1198	1	Similarly	similarly	RB
37894	1198	2	,	,	,
37894	1198	3	the	the	DT
37894	1198	4	"	"	``
37894	1198	5	Airway	Airway	NNP
37894	1198	6	Meteorological	Meteorological	NNP
37894	1198	7	Atlas	Atlas	NNP
37894	1198	8	for	for	IN
37894	1198	9	the	the	DT
37894	1198	10	United	United	NNP
37894	1198	11	States	States	NNP
37894	1198	12	"	"	''
37894	1198	13	(	(	-LRB-
37894	1198	14	Anonymous	Anonymous	NNP
37894	1198	15	,	,	,
37894	1198	16	1941	1941	CD
37894	1198	17	)	)	-RRB-
37894	1198	18	gives	give	VBZ
37894	1198	19	surface	surface	NN
37894	1198	20	wind	wind	NN
37894	1198	21	roses	rose	NNS
37894	1198	22	for	for	IN
37894	1198	23	April	April	NNP
37894	1198	24	(	(	-LRB-
37894	1198	25	Chart	Chart	NNP
37894	1198	26	6	6	CD
37894	1198	27	)	)	-RRB-
37894	1198	28	and	and	CC
37894	1198	29	upper	upper	JJ
37894	1198	30	wind	wind	NN
37894	1198	31	roses	rose	NNS
37894	1198	32	at	at	IN
37894	1198	33	500	500	CD
37894	1198	34	and	and	CC
37894	1198	35	1,000	1,000	CD
37894	1198	36	meters	meter	NNS
37894	1198	37	above	above	IN
37894	1198	38	mean	mean	VBP
37894	1198	39	sea	sea	NN
37894	1198	40	level	level	NN
37894	1198	41	for	for	IN
37894	1198	42	the	the	DT
37894	1198	43	combined	combine	VBN
37894	1198	44	months	month	NNS
37894	1198	45	of	of	IN
37894	1198	46	March	March	NNP
37894	1198	47	,	,	,
37894	1198	48	April	April	NNP
37894	1198	49	,	,	,
37894	1198	50	and	and	CC
37894	1198	51	May	May	NNP
37894	1198	52	(	(	-LRB-
37894	1198	53	Charts	Charts	NNP
37894	1198	54	81	81	CD
37894	1198	55	and	and	CC
37894	1198	56	82	82	CD
37894	1198	57	)	)	-RRB-
37894	1198	58	.	.	.
37894	1199	1	The	the	DT
37894	1199	2	same	same	JJ
37894	1199	3	publication	publication	NN
37894	1199	4	shows	show	VBZ
37894	1199	5	wind	wind	NN
37894	1199	6	resultants	resultant	NNS
37894	1199	7	at	at	IN
37894	1199	8	500	500	CD
37894	1199	9	and	and	CC
37894	1199	10	1,000	1,000	CD
37894	1199	11	meters	meter	NNS
37894	1199	12	above	above	IN
37894	1199	13	mean	mean	VBP
37894	1199	14	sea	sea	NN
37894	1199	15	level	level	NN
37894	1199	16	(	(	-LRB-
37894	1199	17	Charts	chart	NNS
37894	1199	18	108	108	CD
37894	1199	19	and	and	CC
37894	1199	20	109	109	CD
37894	1199	21	)	)	-RRB-
37894	1199	22	.	.	.
37894	1200	1	Further	further	JJ
37894	1200	2	information	information	NN
37894	1200	3	permitting	permit	VBG
37894	1200	4	a	a	DT
37894	1200	5	description	description	NN
37894	1200	6	in	in	IN
37894	1200	7	general	general	JJ
37894	1200	8	terms	term	NNS
37894	1200	9	of	of	IN
37894	1200	10	conditions	condition	NNS
37894	1200	11	prevailing	prevail	VBG
37894	1200	12	in	in	IN
37894	1200	13	April	April	NNP
37894	1200	14	and	and	CC
37894	1200	15	May	May	NNP
37894	1200	16	is	be	VBZ
37894	1200	17	found	find	VBN
37894	1200	18	in	in	IN
37894	1200	19	the	the	DT
37894	1200	20	"	"	``
37894	1200	21	Monthly	Monthly	NNP
37894	1200	22	Weather	Weather	NNP
37894	1200	23	Review	Review	NNP
37894	1200	24	"	"	''
37894	1200	25	covering	cover	VBG
37894	1200	26	these	these	DT
37894	1200	27	months	month	NNS
37894	1200	28	(	(	-LRB-
37894	1200	29	_	_	NNP
37894	1200	30	cf	cf	NNP
37894	1200	31	.	.	.
37894	1200	32	_	_	NNP
37894	1200	33	Anonymous	Anonymous	NNP
37894	1200	34	,	,	,
37894	1200	35	1948	1948	CD
37894	1200	36	_	_	NNP
37894	1200	37	a	a	DT
37894	1200	38	_	_	NNP
37894	1200	39	,	,	,
37894	1200	40	Charts	Charts	NNP
37894	1200	41	6	6	CD
37894	1200	42	and	and	CC
37894	1200	43	8	8	CD
37894	1200	44	;	;	SYM
37894	1200	45	1948	1948	CD
37894	1200	46	_	_	NNP
37894	1200	47	b	b	NNP
37894	1200	48	_	_	NNP
37894	1200	49	,	,	,
37894	1200	50	Charts	Charts	NNP
37894	1200	51	6	6	CD
37894	1200	52	and	and	CC
37894	1200	53	8)	8)	CD
37894	1200	54	.	.	.
37894	1201	1	[	[	-LRB-
37894	1201	2	Illustration	illustration	NN
37894	1201	3	:	:	:
37894	1201	4	FIG	FIG	NNP
37894	1201	5	.	.	.
37894	1202	1	38	38	CD
37894	1202	2	.	.	.
37894	1203	1	Over	over	IN
37894	1203	2	-	-	HYPH
37894	1203	3	all	all	DT
37894	1203	4	sector	sector	NN
37894	1203	5	vectors	vector	NNS
37894	1203	6	at	at	IN
37894	1203	7	major	major	JJ
37894	1203	8	stations	station	NNS
37894	1203	9	in	in	IN
37894	1203	10	the	the	DT
37894	1203	11	spring	spring	NN
37894	1203	12	1948	1948	CD
37894	1203	13	.	.	.
37894	1204	1	See	see	VB
37894	1204	2	text	text	NN
37894	1204	3	for	for	IN
37894	1204	4	explanation	explanation	NN
37894	1204	5	of	of	IN
37894	1204	6	system	system	NN
37894	1204	7	used	use	VBN
37894	1204	8	in	in	IN
37894	1204	9	determining	determine	VBG
37894	1204	10	the	the	DT
37894	1204	11	length	length	NN
37894	1204	12	of	of	IN
37894	1204	13	vectors	vector	NNS
37894	1204	14	.	.	.
37894	1205	1	For	for	IN
37894	1205	2	identification	identification	NN
37894	1205	3	of	of	IN
37894	1205	4	stations	station	NNS
37894	1205	5	,	,	,
37894	1205	6	see	see	VB
37894	1205	7	Figure	Figure	NNP
37894	1205	8	34	34	CD
37894	1205	9	.	.	.
37894	1205	10	]	]	-RRB-
37894	1206	1	[	[	-LRB-
37894	1206	2	Illustration	illustration	NN
37894	1206	3	:	:	:
37894	1206	4	FIG	FIG	NNP
37894	1206	5	.	.	.
37894	1207	1	39	39	CD
37894	1207	2	.	.	.
37894	1208	1	Over	over	IN
37894	1208	2	-	-	HYPH
37894	1208	3	all	all	DT
37894	1208	4	net	net	JJ
37894	1208	5	trend	trend	NN
37894	1208	6	of	of	IN
37894	1208	7	flight	flight	NN
37894	1208	8	directions	direction	NNS
37894	1208	9	at	at	IN
37894	1208	10	stations	station	NNS
37894	1208	11	shown	show	VBN
37894	1208	12	in	in	IN
37894	1208	13	Figure	Figure	NNP
37894	1208	14	38	38	CD
37894	1208	15	.	.	.
37894	1209	1	The	the	DT
37894	1209	2	arrows	arrow	NNS
37894	1209	3	indicate	indicate	VBP
37894	1209	4	direction	direction	NN
37894	1209	5	only	only	RB
37894	1209	6	and	and	CC
37894	1209	7	their	-PRON-	PRP$
37894	1209	8	slants	slant	NNS
37894	1209	9	were	be	VBD
37894	1209	10	obtained	obtain	VBN
37894	1209	11	by	by	IN
37894	1209	12	vector	vector	NN
37894	1209	13	analysis	analysis	NN
37894	1209	14	of	of	IN
37894	1209	15	the	the	DT
37894	1209	16	over	over	RB
37894	1209	17	-	-	HYPH
37894	1209	18	all	all	DT
37894	1209	19	sector	sector	NN
37894	1209	20	densities	density	NNS
37894	1209	21	.	.	.
37894	1209	22	]	]	-RRB-
37894	1210	1	First	first	RB
37894	1210	2	,	,	,
37894	1210	3	however	however	RB
37894	1210	4	,	,	,
37894	1210	5	it	-PRON-	PRP
37894	1210	6	is	be	VBZ
37894	1210	7	helpful	helpful	JJ
37894	1210	8	as	as	IN
37894	1210	9	a	a	DT
37894	1210	10	starting	starting	NN
37894	1210	11	point	point	NN
37894	1210	12	to	to	TO
37894	1210	13	consider	consider	VB
37894	1210	14	the	the	DT
37894	1210	15	over	over	RB
37894	1210	16	-	-	HYPH
37894	1210	17	all	all	DT
37894	1210	18	picture	picture	NN
37894	1210	19	created	create	VBN
37894	1210	20	by	by	IN
37894	1210	21	the	the	DT
37894	1210	22	flight	flight	NN
37894	1210	23	trends	trend	NNS
37894	1210	24	computed	compute	VBD
37894	1210	25	from	from	IN
37894	1210	26	this	this	DT
37894	1210	27	study	study	NN
37894	1210	28	.	.	.
37894	1211	1	In	in	IN
37894	1211	2	Figure	Figure	NNP
37894	1211	3	38	38	CD
37894	1211	4	,	,	,
37894	1211	5	the	the	DT
37894	1211	6	individual	individual	JJ
37894	1211	7	sector	sector	NN
37894	1211	8	vectors	vector	NNS
37894	1211	9	are	be	VBP
37894	1211	10	mapped	map	VBN
37894	1211	11	for	for	IN
37894	1211	12	the	the	DT
37894	1211	13	season	season	NN
37894	1211	14	for	for	IN
37894	1211	15	all	all	DT
37894	1211	16	stations	station	NNS
37894	1211	17	with	with	IN
37894	1211	18	sufficient	sufficient	JJ
37894	1211	19	data	datum	NNS
37894	1211	20	.	.	.
37894	1212	1	The	the	DT
37894	1212	2	length	length	NN
37894	1212	3	of	of	IN
37894	1212	4	each	each	DT
37894	1212	5	sector	sector	NN
37894	1212	6	vector	vector	NN
37894	1212	7	is	be	VBZ
37894	1212	8	determined	determine	VBN
37894	1212	9	as	as	IN
37894	1212	10	follows	follow	VBZ
37894	1212	11	:	:	:
37894	1212	12	the	the	DT
37894	1212	13	over	over	IN
37894	1212	14	-	-	HYPH
37894	1212	15	all	all	DT
37894	1212	16	seasonal	seasonal	JJ
37894	1212	17	density	density	NN
37894	1212	18	for	for	IN
37894	1212	19	the	the	DT
37894	1212	20	station	station	NN
37894	1212	21	is	be	VBZ
37894	1212	22	regarded	regard	VBN
37894	1212	23	as	as	IN
37894	1212	24	100	100	CD
37894	1212	25	percent	percent	NN
37894	1212	26	,	,	,
37894	1212	27	and	and	CC
37894	1212	28	the	the	DT
37894	1212	29	total	total	NN
37894	1212	30	for	for	IN
37894	1212	31	the	the	DT
37894	1212	32	season	season	NN
37894	1212	33	of	of	IN
37894	1212	34	the	the	DT
37894	1212	35	densities	density	NNS
37894	1212	36	in	in	IN
37894	1212	37	each	each	DT
37894	1212	38	individual	individual	JJ
37894	1212	39	sector	sector	NN
37894	1212	40	is	be	VBZ
37894	1212	41	then	then	RB
37894	1212	42	expressed	express	VBN
37894	1212	43	as	as	IN
37894	1212	44	a	a	DT
37894	1212	45	percentage	percentage	NN
37894	1212	46	.	.	.
37894	1213	1	The	the	DT
37894	1213	2	results	result	NNS
37894	1213	3	show	show	VBP
37894	1213	4	the	the	DT
37894	1213	5	directional	directional	JJ
37894	1213	6	spread	spread	NN
37894	1213	7	at	at	IN
37894	1213	8	each	each	DT
37894	1213	9	station	station	NN
37894	1213	10	.	.	.
37894	1214	1	In	in	IN
37894	1214	2	Figure	Figure	NNP
37894	1214	3	39	39	CD
37894	1214	4	,	,	,
37894	1214	5	the	the	DT
37894	1214	6	direction	direction	NN
37894	1214	7	of	of	IN
37894	1214	8	the	the	DT
37894	1214	9	over	over	RB
37894	1214	10	-	-	HYPH
37894	1214	11	all	all	DT
37894	1214	12	vector	vector	NN
37894	1214	13	resultant	resultant	NN
37894	1214	14	,	,	,
37894	1214	15	obtained	obtain	VBN
37894	1214	16	from	from	IN
37894	1214	17	the	the	DT
37894	1214	18	sector	sector	NN
37894	1214	19	vectors	vector	NNS
37894	1214	20	on	on	IN
37894	1214	21	the	the	DT
37894	1214	22	preceding	precede	VBG
37894	1214	23	map	map	NN
37894	1214	24	,	,	,
37894	1214	25	is	be	VBZ
37894	1214	26	plotted	plot	VBN
37894	1214	27	to	to	TO
37894	1214	28	show	show	VB
37894	1214	29	the	the	DT
37894	1214	30	net	net	JJ
37894	1214	31	trend	trend	NN
37894	1214	32	at	at	IN
37894	1214	33	each	each	DT
37894	1214	34	station	station	NN
37894	1214	35	.	.	.
37894	1215	1	As	as	IN
37894	1215	2	is	be	VBZ
37894	1215	3	evident	evident	JJ
37894	1215	4	from	from	IN
37894	1215	5	the	the	DT
37894	1215	6	latter	latter	JJ
37894	1215	7	figure	figure	NN
37894	1215	8	,	,	,
37894	1215	9	the	the	DT
37894	1215	10	direction	direction	NN
37894	1215	11	of	of	IN
37894	1215	12	the	the	DT
37894	1215	13	net	net	JJ
37894	1215	14	trend	trend	NN
37894	1215	15	at	at	IN
37894	1215	16	Progreso	Progreso	NNP
37894	1215	17	,	,	,
37894	1215	18	Yucatán	Yucatán	NNP
37894	1215	19	,	,	,
37894	1215	20	is	be	VBZ
37894	1215	21	decidedly	decidedly	RB
37894	1215	22	west	west	RB
37894	1215	23	of	of	IN
37894	1215	24	north	north	NN
37894	1215	25	(	(	-LRB-
37894	1215	26	N	n	CD
37894	1215	27	26	26	CD
37894	1215	28	°	°	NNS
37894	1215	29	W	W	NNP
37894	1215	30	)	)	-RRB-
37894	1215	31	.	.	.
37894	1216	1	At	at	IN
37894	1216	2	Tampico	Tampico	NNP
37894	1216	3	this	this	DT
37894	1216	4	trend	trend	NN
37894	1216	5	is	be	VBZ
37894	1216	6	west	west	NN
37894	1216	7	of	of	IN
37894	1216	8	north	north	NN
37894	1216	9	(	(	-LRB-
37894	1216	10	N	n	CD
37894	1216	11	11	11	CD
37894	1216	12	°	°	NNS
37894	1216	13	W	W	NNP
37894	1216	14	)	)	-RRB-
37894	1216	15	,	,	,
37894	1216	16	but	but	CC
37894	1216	17	not	not	RB
37894	1216	18	nearly	nearly	RB
37894	1216	19	so	so	RB
37894	1216	20	much	much	RB
37894	1216	21	so	so	IN
37894	1216	22	as	as	IN
37894	1216	23	at	at	IN
37894	1216	24	Progreso	Progreso	NNP
37894	1216	25	.	.	.
37894	1217	1	In	in	IN
37894	1217	2	Texas	Texas	NNP
37894	1217	3	,	,	,
37894	1217	4	Louisiana	Louisiana	NNP
37894	1217	5	,	,	,
37894	1217	6	Georgia	Georgia	NNP
37894	1217	7	,	,	,
37894	1217	8	Tennessee	Tennessee	NNP
37894	1217	9	,	,	,
37894	1217	10	and	and	CC
37894	1217	11	Kentucky	Kentucky	NNP
37894	1217	12	,	,	,
37894	1217	13	it	-PRON-	PRP
37894	1217	14	is	be	VBZ
37894	1217	15	decidedly	decidedly	RB
37894	1217	16	east	east	JJ
37894	1217	17	of	of	IN
37894	1217	18	north	north	NN
37894	1217	19	.	.	.
37894	1218	1	In	in	IN
37894	1218	2	the	the	DT
37894	1218	3	upper	upper	JJ
37894	1218	4	Mississippi	Mississippi	NNP
37894	1218	5	Valley	Valley	NNP
37894	1218	6	and	and	CC
37894	1218	7	in	in	IN
37894	1218	8	the	the	DT
37894	1218	9	eastern	eastern	JJ
37894	1218	10	part	part	NN
37894	1218	11	of	of	IN
37894	1218	12	the	the	DT
37894	1218	13	Great	Great	NNP
37894	1218	14	Plains	Plains	NNPS
37894	1218	15	,	,	,
37894	1218	16	the	the	DT
37894	1218	17	flow	flow	NN
37894	1218	18	appears	appear	VBZ
37894	1218	19	to	to	TO
37894	1218	20	be	be	VB
37894	1218	21	northward	northward	RB
37894	1218	22	or	or	CC
37894	1218	23	slightly	slightly	RB
37894	1218	24	west	west	NN
37894	1218	25	of	of	IN
37894	1218	26	north	north	NN
37894	1218	27	.	.	.
37894	1219	1	At	at	IN
37894	1219	2	Winter	Winter	NNP
37894	1219	3	Park	Park	NNP
37894	1219	4	,	,	,
37894	1219	5	Florida	Florida	NNP
37894	1219	6	,	,	,
37894	1219	7	migration	migration	NN
37894	1219	8	follows	follow	VBZ
37894	1219	9	in	in	IN
37894	1219	10	general	general	JJ
37894	1219	11	the	the	DT
37894	1219	12	slant	slant	NN
37894	1219	13	of	of	IN
37894	1219	14	the	the	DT
37894	1219	15	Florida	Florida	NNP
37894	1219	16	Peninsula	Peninsula	NNP
37894	1219	17	,	,	,
37894	1219	18	but	but	CC
37894	1219	19	,	,	,
37894	1219	20	the	the	DT
37894	1219	21	meager	meager	JJ
37894	1219	22	data	datum	NNS
37894	1219	23	from	from	IN
37894	1219	24	Thomasville	Thomasville	NNP
37894	1219	25	,	,	,
37894	1219	26	Georgia	Georgia	NNP
37894	1219	27	,	,	,
37894	1219	28	do	do	VBP
37894	1219	29	not	not	RB
37894	1219	30	indicate	indicate	VB
37894	1219	31	a	a	DT
37894	1219	32	continuation	continuation	NN
37894	1219	33	of	of	IN
37894	1219	34	this	this	DT
37894	1219	35	trend	trend	NN
37894	1219	36	.	.	.
37894	1220	1	It	-PRON-	PRP
37894	1220	2	might	may	MD
37894	1220	3	appear	appear	VB
37894	1220	4	,	,	,
37894	1220	5	on	on	IN
37894	1220	6	the	the	DT
37894	1220	7	basis	basis	NN
37894	1220	8	of	of	IN
37894	1220	9	the	the	DT
37894	1220	10	foregoing	foregoing	JJ
37894	1220	11	data	datum	NNS
37894	1220	12	,	,	,
37894	1220	13	that	that	WDT
37894	1220	14	birds	bird	NNS
37894	1220	15	migrate	migrate	VBP
37894	1220	16	along	along	RP
37894	1220	17	or	or	CC
37894	1220	18	parallel	parallel	VB
37894	1220	19	to	to	IN
37894	1220	20	the	the	DT
37894	1220	21	southeast	southeast	JJ
37894	1220	22	-	-	HYPH
37894	1220	23	northwest	northwest	NN
37894	1220	24	extension	extension	NN
37894	1220	25	of	of	IN
37894	1220	26	the	the	DT
37894	1220	27	land	land	NN
37894	1220	28	masses	masse	NNS
37894	1220	29	of	of	IN
37894	1220	30	Central	Central	NNP
37894	1220	31	America	America	NNP
37894	1220	32	and	and	CC
37894	1220	33	southern	southern	JJ
37894	1220	34	Mexico	Mexico	NNP
37894	1220	35	.	.	.
37894	1221	1	This	this	DT
37894	1221	2	would	would	MD
37894	1221	3	carry	carry	VB
37894	1221	4	many	many	JJ
37894	1221	5	of	of	IN
37894	1221	6	them	-PRON-	PRP
37894	1221	7	west	west	RB
37894	1221	8	of	of	IN
37894	1221	9	the	the	DT
37894	1221	10	meridian	meridian	NN
37894	1221	11	of	of	IN
37894	1221	12	their	-PRON-	PRP$
37894	1221	13	ultimate	ultimate	JJ
37894	1221	14	goal	goal	NN
37894	1221	15	,	,	,
37894	1221	16	obliging	oblige	VBG
37894	1221	17	them	-PRON-	PRP
37894	1221	18	to	to	TO
37894	1221	19	turn	turn	VB
37894	1221	20	back	back	RB
37894	1221	21	eastward	eastward	RB
37894	1221	22	along	along	IN
37894	1221	23	the	the	DT
37894	1221	24	lines	line	NNS
37894	1221	25	of	of	IN
37894	1221	26	net	net	JJ
37894	1221	27	trend	trend	NN
37894	1221	28	in	in	IN
37894	1221	29	the	the	DT
37894	1221	30	Gulf	Gulf	NNP
37894	1221	31	states	state	NNS
37894	1221	32	and	and	CC
37894	1221	33	beyond	beyond	IN
37894	1221	34	.	.	.
37894	1222	1	This	this	DT
37894	1222	2	curved	curved	JJ
37894	1222	3	trajectory	trajectory	NN
37894	1222	4	is	be	VBZ
37894	1222	5	undoubtedly	undoubtedly	RB
37894	1222	6	one	one	CD
37894	1222	7	of	of	IN
37894	1222	8	the	the	DT
37894	1222	9	factors	factor	NNS
37894	1222	10	--	--	:
37894	1222	11	but	but	CC
37894	1222	12	certainly	certainly	RB
37894	1222	13	not	not	RB
37894	1222	14	the	the	DT
37894	1222	15	only	only	JJ
37894	1222	16	factor	factor	NN
37894	1222	17	--	--	:
37894	1222	18	contributing	contribute	VBG
37894	1222	19	to	to	IN
37894	1222	20	the	the	DT
37894	1222	21	effect	effect	NN
37894	1222	22	known	know	VBN
37894	1222	23	as	as	IN
37894	1222	24	the	the	DT
37894	1222	25	"	"	``
37894	1222	26	coastal	coastal	JJ
37894	1222	27	hiatus	hiatus	NN
37894	1222	28	.	.	.
37894	1222	29	"	"	''
37894	1223	1	The	the	DT
37894	1223	2	question	question	NN
37894	1223	3	arises	arise	VBZ
37894	1223	4	as	as	IN
37894	1223	5	to	to	IN
37894	1223	6	whether	whether	IN
37894	1223	7	this	this	DT
37894	1223	8	northwestward	northwestward	NN
37894	1223	9	trend	trend	NN
37894	1223	10	in	in	IN
37894	1223	11	the	the	DT
37894	1223	12	southern	southern	JJ
37894	1223	13	part	part	NN
37894	1223	14	of	of	IN
37894	1223	15	the	the	DT
37894	1223	16	hemisphere	hemisphere	NN
37894	1223	17	is	be	VBZ
37894	1223	18	a	a	DT
37894	1223	19	consequence	consequence	NN
37894	1223	20	of	of	IN
37894	1223	21	birds	bird	NNS
37894	1223	22	following	follow	VBG
37894	1223	23	the	the	DT
37894	1223	24	land	land	NN
37894	1223	25	masses	masse	NNS
37894	1223	26	or	or	CC
37894	1223	27	whether	whether	IN
37894	1223	28	instead	instead	RB
37894	1223	29	it	-PRON-	PRP
37894	1223	30	is	be	VBZ
37894	1223	31	the	the	DT
37894	1223	32	result	result	NN
37894	1223	33	of	of	IN
37894	1223	34	some	some	DT
37894	1223	35	other	other	JJ
37894	1223	36	natural	natural	JJ
37894	1223	37	cause	cause	NN
37894	1223	38	such	such	JJ
37894	1223	39	as	as	IN
37894	1223	40	a	a	DT
37894	1223	41	response	response	NN
37894	1223	42	to	to	IN
37894	1223	43	prevailing	prevail	VBG
37894	1223	44	winds	wind	NNS
37894	1223	45	.	.	.
37894	1224	1	I	-PRON-	PRP
37894	1224	2	am	be	VBP
37894	1224	3	inclined	inclined	JJ
37894	1224	4	to	to	IN
37894	1224	5	the	the	DT
37894	1224	6	opinion	opinion	NN
37894	1224	7	that	that	IN
37894	1224	8	both	both	DT
37894	1224	9	factors	factor	NNS
37894	1224	10	are	be	VBP
37894	1224	11	important	important	JJ
37894	1224	12	.	.	.
37894	1225	1	Facts	fact	NNS
37894	1225	2	pertinent	pertinent	JJ
37894	1225	3	to	to	IN
37894	1225	4	this	this	DT
37894	1225	5	opinion	opinion	NN
37894	1225	6	are	be	VBP
37894	1225	7	given	give	VBN
37894	1225	8	below	below	RB
37894	1225	9	.	.	.
37894	1226	1	In	in	IN
37894	1226	2	April	April	NNP
37894	1226	3	and	and	CC
37894	1226	4	May	May	NNP
37894	1226	5	a	a	DT
37894	1226	6	high	high	JJ
37894	1226	7	pressure	pressure	NN
37894	1226	8	area	area	NN
37894	1226	9	prevails	prevail	VBZ
37894	1226	10	over	over	IN
37894	1226	11	the	the	DT
37894	1226	12	region	region	NN
37894	1226	13	of	of	IN
37894	1226	14	the	the	DT
37894	1226	15	Gulf	Gulf	NNP
37894	1226	16	of	of	IN
37894	1226	17	Mexico	Mexico	NNP
37894	1226	18	.	.	.
37894	1227	1	As	as	IN
37894	1227	2	the	the	DT
37894	1227	3	season	season	NN
37894	1227	4	progresses	progress	VBZ
37894	1227	5	,	,	,
37894	1227	6	fewer	few	JJR
37894	1227	7	and	and	CC
37894	1227	8	fewer	few	JJR
37894	1227	9	cold	cold	JJ
37894	1227	10	-	-	HYPH
37894	1227	11	front	front	JJ
37894	1227	12	storms	storm	NNS
37894	1227	13	reach	reach	VBP
37894	1227	14	the	the	DT
37894	1227	15	Gulf	Gulf	NNP
37894	1227	16	area	area	NN
37894	1227	17	,	,	,
37894	1227	18	and	and	CC
37894	1227	19	as	as	IN
37894	1227	20	a	a	DT
37894	1227	21	result	result	NN
37894	1227	22	the	the	DT
37894	1227	23	high	high	JJ
37894	1227	24	pressure	pressure	NN
37894	1227	25	area	area	NN
37894	1227	26	over	over	IN
37894	1227	27	the	the	DT
37894	1227	28	Gulf	Gulf	NNP
37894	1227	29	is	be	VBZ
37894	1227	30	more	more	RBR
37894	1227	31	stable	stable	JJ
37894	1227	32	.	.	.
37894	1228	1	Since	since	IN
37894	1228	2	the	the	DT
37894	1228	3	winds	wind	NNS
37894	1228	4	move	move	VBP
37894	1228	5	clockwise	clockwise	VBP
37894	1228	6	around	around	IN
37894	1228	7	a	a	DT
37894	1228	8	"	"	``
37894	1228	9	high	high	JJ
37894	1228	10	,	,	,
37894	1228	11	"	"	''
37894	1228	12	this	this	DT
37894	1228	13	gives	give	VBZ
37894	1228	14	a	a	DT
37894	1228	15	general	general	JJ
37894	1228	16	northwesterly	northwesterly	RB
37894	1228	17	trajectory	trajectory	CD
37894	1228	18	to	to	IN
37894	1228	19	the	the	DT
37894	1228	20	air	air	NN
37894	1228	21	currents	current	NNS
37894	1228	22	in	in	IN
37894	1228	23	the	the	DT
37894	1228	24	vicinity	vicinity	NN
37894	1228	25	of	of	IN
37894	1228	26	the	the	DT
37894	1228	27	Yucatán	Yucatán	NNP
37894	1228	28	Peninsula	Peninsula	NNP
37894	1228	29	.	.	.
37894	1229	1	In	in	IN
37894	1229	2	the	the	DT
37894	1229	3	western	western	JJ
37894	1229	4	area	area	NN
37894	1229	5	of	of	IN
37894	1229	6	the	the	DT
37894	1229	7	Gulf	Gulf	NNP
37894	1229	8	,	,	,
37894	1229	9	the	the	DT
37894	1229	10	movement	movement	NN
37894	1229	11	of	of	IN
37894	1229	12	the	the	DT
37894	1229	13	air	air	NN
37894	1229	14	mass	mass	NN
37894	1229	15	is	be	VBZ
37894	1229	16	in	in	IN
37894	1229	17	general	general	JJ
37894	1229	18	only	only	RB
37894	1229	19	slightly	slightly	RB
37894	1229	20	west	west	NN
37894	1229	21	of	of	IN
37894	1229	22	north	north	NN
37894	1229	23	,	,	,
37894	1229	24	but	but	CC
37894	1229	25	in	in	IN
37894	1229	26	the	the	DT
37894	1229	27	central	central	JJ
37894	1229	28	Gulf	Gulf	NNP
37894	1229	29	states	state	NNS
37894	1229	30	and	and	CC
37894	1229	31	lower	low	JJR
37894	1229	32	Mississippi	Mississippi	NNP
37894	1229	33	Valley	Valley	NNP
37894	1229	34	the	the	DT
37894	1229	35	trend	trend	NN
37894	1229	36	is	be	VBZ
37894	1229	37	on	on	IN
37894	1229	38	the	the	DT
37894	1229	39	average	average	NN
37894	1229	40	northeasterly	northeasterly	RB
37894	1229	41	.	.	.
37894	1230	1	In	in	IN
37894	1230	2	the	the	DT
37894	1230	3	eastern	eastern	JJ
37894	1230	4	part	part	NN
37894	1230	5	of	of	IN
37894	1230	6	the	the	DT
37894	1230	7	Great	Great	NNP
37894	1230	8	Plains	Plains	NNPS
37894	1230	9	,	,	,
37894	1230	10	however	however	RB
37894	1230	11	,	,	,
37894	1230	12	the	the	DT
37894	1230	13	average	average	JJ
37894	1230	14	circulation	circulation	NN
37894	1230	15	veers	veer	NNS
37894	1230	16	again	again	RB
37894	1230	17	slightly	slightly	RB
37894	1230	18	west	west	NN
37894	1230	19	of	of	IN
37894	1230	20	north	north	NN
37894	1230	21	.	.	.
37894	1231	1	The	the	DT
37894	1231	2	over	over	IN
37894	1231	3	-	-	HYPH
37894	1231	4	all	all	DT
37894	1231	5	vector	vector	NN
37894	1231	6	resultants	resultant	NNS
37894	1231	7	of	of	IN
37894	1231	8	bird	bird	NN
37894	1231	9	migration	migration	NN
37894	1231	10	at	at	IN
37894	1231	11	stations	station	NNS
37894	1231	12	in	in	IN
37894	1231	13	1948	1948	CD
37894	1231	14	,	,	,
37894	1231	15	as	as	IN
37894	1231	16	mapped	map	VBN
37894	1231	17	in	in	IN
37894	1231	18	Figure	Figure	NNP
37894	1231	19	39	39	CD
37894	1231	20	,	,	,
37894	1231	21	correspond	correspond	VBP
37894	1231	22	closely	closely	RB
37894	1231	23	to	to	IN
37894	1231	24	this	this	DT
37894	1231	25	general	general	JJ
37894	1231	26	pattern	pattern	NN
37894	1231	27	.	.	.
37894	1232	1	Meteorological	meteorological	JJ
37894	1232	2	data	datum	NNS
37894	1232	3	are	be	VBP
37894	1232	4	available	available	JJ
37894	1232	5	for	for	IN
37894	1232	6	drawing	draw	VBG
37894	1232	7	a	a	DT
37894	1232	8	visual	visual	JJ
37894	1232	9	comparison	comparison	NN
37894	1232	10	between	between	IN
37894	1232	11	the	the	DT
37894	1232	12	weather	weather	NN
37894	1232	13	pattern	pattern	NN
37894	1232	14	and	and	CC
37894	1232	15	the	the	DT
37894	1232	16	fight	fight	JJ
37894	1232	17	pattern	pattern	NN
37894	1232	18	on	on	IN
37894	1232	19	individual	individual	JJ
37894	1232	20	nights	night	NNS
37894	1232	21	.	.	.
37894	1233	1	I	-PRON-	PRP
37894	1233	2	have	have	VBP
37894	1233	3	plotted	plot	VBN
37894	1233	4	the	the	DT
37894	1233	5	directional	directional	JJ
37894	1233	6	results	result	NNS
37894	1233	7	of	of	IN
37894	1233	8	four	four	CD
37894	1233	9	nights	night	NNS
37894	1233	10	of	of	IN
37894	1233	11	observation	observation	NN
37894	1233	12	on	on	IN
37894	1233	13	the	the	DT
37894	1233	14	Daily	Daily	NNP
37894	1233	15	Weather	Weather	NNP
37894	1233	16	Maps	Maps	NNPS
37894	1233	17	for	for	IN
37894	1233	18	those	those	DT
37894	1233	19	dates	date	NNS
37894	1233	20	,	,	,
37894	1233	21	showing	show	VBG
37894	1233	22	surface	surface	NN
37894	1233	23	conditions	condition	NNS
37894	1233	24	(	(	-LRB-
37894	1233	25	Figures	figure	NNS
37894	1233	26	40	40	CD
37894	1233	27	,	,	,
37894	1233	28	42	42	CD
37894	1233	29	,	,	,
37894	1233	30	44	44	CD
37894	1233	31	and	and	CC
37894	1233	32	46	46	CD
37894	1233	33	)	)	-RRB-
37894	1233	34	.	.	.
37894	1234	1	Each	each	DT
37894	1234	2	sector	sector	NN
37894	1234	3	vector	vector	NN
37894	1234	4	is	be	VBZ
37894	1234	5	drawn	draw	VBN
37894	1234	6	in	in	IN
37894	1234	7	proportion	proportion	NN
37894	1234	8	to	to	IN
37894	1234	9	its	-PRON-	PRP$
37894	1234	10	percentage	percentage	NN
37894	1234	11	of	of	IN
37894	1234	12	the	the	DT
37894	1234	13	corresponding	correspond	VBG
37894	1234	14	nightly	nightly	JJ
37894	1234	15	station	station	NN
37894	1234	16	density	density	NN
37894	1234	17	;	;	:
37894	1234	18	hence	hence	RB
37894	1234	19	the	the	DT
37894	1234	20	vectors	vector	NNS
37894	1234	21	at	at	IN
37894	1234	22	each	each	DT
37894	1234	23	station	station	NN
37894	1234	24	are	be	VBP
37894	1234	25	on	on	IN
37894	1234	26	an	an	DT
37894	1234	27	independent	independent	JJ
37894	1234	28	scale	scale	NN
37894	1234	29	.	.	.
37894	1235	1	The	the	DT
37894	1235	2	vector	vector	NN
37894	1235	3	resultants	resultant	NNS
37894	1235	4	,	,	,
37894	1235	5	distinguished	distinguish	VBN
37894	1235	6	by	by	IN
37894	1235	7	the	the	DT
37894	1235	8	large	large	JJ
37894	1235	9	arrowheads	arrowhead	NNS
37894	1235	10	,	,	,
37894	1235	11	are	be	VBP
37894	1235	12	all	all	DT
37894	1235	13	assigned	assign	VBN
37894	1235	14	the	the	DT
37894	1235	15	same	same	JJ
37894	1235	16	length	length	NN
37894	1235	17	,	,	,
37894	1235	18	but	but	CC
37894	1235	19	the	the	DT
37894	1235	20	nightly	nightly	JJ
37894	1235	21	and	and	CC
37894	1235	22	average	average	JJ
37894	1235	23	hourly	hourly	JJ
37894	1235	24	station	station	NN
37894	1235	25	densities	density	NNS
37894	1235	26	are	be	VBP
37894	1235	27	tabulated	tabulate	VBN
37894	1235	28	in	in	IN
37894	1235	29	the	the	DT
37894	1235	30	legends	legend	NNS
37894	1235	31	under	under	IN
37894	1235	32	each	each	DT
37894	1235	33	figure	figure	NN
37894	1235	34	.	.	.
37894	1236	1	For	for	IN
37894	1236	2	each	each	DT
37894	1236	3	map	map	NN
37894	1236	4	showing	show	VBG
37894	1236	5	the	the	DT
37894	1236	6	directions	direction	NNS
37894	1236	7	of	of	IN
37894	1236	8	flight	flight	NN
37894	1236	9	,	,	,
37894	1236	10	there	there	EX
37894	1236	11	is	be	VBZ
37894	1236	12	on	on	IN
37894	1236	13	the	the	DT
37894	1236	14	facing	face	VBG
37894	1236	15	page	page	NN
37894	1236	16	another	another	DT
37894	1236	17	map	map	NN
37894	1236	18	showing	show	VBG
37894	1236	19	the	the	DT
37894	1236	20	directions	direction	NNS
37894	1236	21	of	of	IN
37894	1236	22	winds	wind	NNS
37894	1236	23	aloft	aloft	RB
37894	1236	24	at	at	IN
37894	1236	25	2,000	2,000	CD
37894	1236	26	and	and	CC
37894	1236	27	4,000	4,000	CD
37894	1236	28	feet	foot	NNS
37894	1236	29	above	above	IN
37894	1236	30	mean	mean	VBP
37894	1236	31	sea	sea	NN
37894	1236	32	level	level	NN
37894	1236	33	on	on	IN
37894	1236	34	the	the	DT
37894	1236	35	same	same	JJ
37894	1236	36	date	date	NN
37894	1236	37	(	(	-LRB-
37894	1236	38	see	see	VB
37894	1236	39	Figures	Figures	NNP
37894	1236	40	41	41	CD
37894	1236	41	-	-	SYM
37894	1236	42	47	47	CD
37894	1236	43	)	)	-RRB-
37894	1236	44	.	.	.
37894	1237	1	The	the	DT
37894	1237	2	maps	map	NNS
37894	1237	3	of	of	IN
37894	1237	4	the	the	DT
37894	1237	5	wind	wind	NN
37894	1237	6	direction	direction	NN
37894	1237	7	show	show	VBP
37894	1237	8	also	also	RB
37894	1237	9	the	the	DT
37894	1237	10	velocities	velocity	NNS
37894	1237	11	.	.	.
37894	1238	1	Unfortunately	unfortunately	RB
37894	1238	2	,	,	,
37894	1238	3	since	since	IN
37894	1238	4	there	there	EX
37894	1238	5	is	be	VBZ
37894	1238	6	no	no	DT
37894	1238	7	way	way	NN
37894	1238	8	of	of	IN
37894	1238	9	analyzing	analyze	VBG
37894	1238	10	the	the	DT
37894	1238	11	sector	sector	NN
37894	1238	12	trends	trend	NNS
37894	1238	13	in	in	IN
37894	1238	14	terms	term	NNS
37894	1238	15	of	of	IN
37894	1238	16	the	the	DT
37894	1238	17	elevations	elevation	NNS
37894	1238	18	of	of	IN
37894	1238	19	the	the	DT
37894	1238	20	birds	bird	NNS
37894	1238	21	involved	involve	VBN
37894	1238	22	,	,	,
37894	1238	23	we	-PRON-	PRP
37894	1238	24	have	have	VBP
37894	1238	25	no	no	DT
37894	1238	26	certain	certain	JJ
37894	1238	27	way	way	NN
37894	1238	28	of	of	IN
37894	1238	29	deciding	decide	VBG
37894	1238	30	whether	whether	IN
37894	1238	31	to	to	TO
37894	1238	32	compare	compare	VB
37894	1238	33	a	a	DT
37894	1238	34	given	give	VBN
37894	1238	35	trend	trend	NN
37894	1238	36	with	with	IN
37894	1238	37	the	the	DT
37894	1238	38	winds	wind	NNS
37894	1238	39	at	at	IN
37894	1238	40	2,000	2,000	CD
37894	1238	41	,	,	,
37894	1238	42	1,000	1,000	CD
37894	1238	43	,	,	,
37894	1238	44	or	or	CC
37894	1238	45	0	0	CD
37894	1238	46	feet	foot	NNS
37894	1238	47	.	.	.
37894	1239	1	Nor	nor	CC
37894	1239	2	do	do	VBP
37894	1239	3	we	-PRON-	PRP
37894	1239	4	know	know	VB
37894	1239	5	exactly	exactly	RB
37894	1239	6	what	what	WP
37894	1239	7	wind	wind	NN
37894	1239	8	corresponds	correspond	VBZ
37894	1239	9	to	to	IN
37894	1239	10	the	the	DT
37894	1239	11	average	average	JJ
37894	1239	12	or	or	CC
37894	1239	13	median	median	JJ
37894	1239	14	flight	flight	NN
37894	1239	15	level	level	NN
37894	1239	16	,	,	,
37894	1239	17	which	which	WDT
37894	1239	18	would	would	MD
37894	1239	19	otherwise	otherwise	RB
37894	1239	20	be	be	VB
37894	1239	21	a	a	DT
37894	1239	22	good	good	JJ
37894	1239	23	altitude	altitude	NN
37894	1239	24	at	at	IN
37894	1239	25	which	which	WDT
37894	1239	26	to	to	TO
37894	1239	27	study	study	VB
37894	1239	28	the	the	DT
37894	1239	29	net	net	JJ
37894	1239	30	trend	trend	NN
37894	1239	31	or	or	CC
37894	1239	32	vector	vector	NN
37894	1239	33	resultant	resultant	NN
37894	1239	34	.	.	.
37894	1240	1	Furthermore	furthermore	RB
37894	1240	2	,	,	,
37894	1240	3	the	the	DT
37894	1240	4	Daily	Daily	NNP
37894	1240	5	Weather	Weather	NNP
37894	1240	6	Map	Map	NNP
37894	1240	7	illustrates	illustrate	VBZ
37894	1240	8	conditions	condition	NNS
37894	1240	9	that	that	WDT
37894	1240	10	obtained	obtain	VBD
37894	1240	11	at	at	IN
37894	1240	12	12:30	12:30	CD
37894	1240	13	A.	a.	NN
37894	1240	14	M.	M.	NNP
37894	1240	15	(	(	-LRB-
37894	1240	16	CST	CST	NNP
37894	1240	17	)	)	-RRB-
37894	1240	18	;	;	:
37894	1240	19	the	the	DT
37894	1240	20	winds	wind	NNS
37894	1240	21	aloft	aloft	RB
37894	1240	22	are	be	VBP
37894	1240	23	based	base	VBN
37894	1240	24	on	on	IN
37894	1240	25	observations	observation	NNS
37894	1240	26	made	make	VBN
37894	1240	27	at	at	IN
37894	1240	28	10:00	10:00	CD
37894	1240	29	P.	P.	NNP
37894	1240	30	M.	M.	NNP
37894	1240	31	(	(	-LRB-
37894	1240	32	CST	CST	NNP
37894	1240	33	)	)	-RRB-
37894	1240	34	;	;	:
37894	1240	35	and	and	CC
37894	1240	36	the	the	DT
37894	1240	37	data	datum	NNS
37894	1240	38	on	on	IN
37894	1240	39	birds	bird	NNS
37894	1240	40	covers	cover	VBZ
37894	1240	41	in	in	IN
37894	1240	42	most	most	JJS
37894	1240	43	cases	case	NNS
37894	1240	44	the	the	DT
37894	1240	45	better	well	JJR
37894	1240	46	part	part	NN
37894	1240	47	of	of	IN
37894	1240	48	the	the	DT
37894	1240	49	whole	whole	JJ
37894	1240	50	night	night	NN
37894	1240	51	.	.	.
37894	1241	1	Add	add	VB
37894	1241	2	to	to	IN
37894	1241	3	all	all	PDT
37894	1241	4	this	this	DT
37894	1241	5	the	the	DT
37894	1241	6	fact	fact	NN
37894	1241	7	that	that	IN
37894	1241	8	the	the	DT
37894	1241	9	flight	flight	NN
37894	1241	10	vectors	vector	NNS
37894	1241	11	,	,	,
37894	1241	12	their	-PRON-	PRP$
37894	1241	13	resultants	resultant	NNS
37894	1241	14	,	,	,
37894	1241	15	and	and	CC
37894	1241	16	the	the	DT
37894	1241	17	wind	wind	NN
37894	1241	18	representations	representation	NNS
37894	1241	19	themselves	-PRON-	PRP
37894	1241	20	are	be	VBP
37894	1241	21	all	all	DT
37894	1241	22	approximations	approximation	NNS
37894	1241	23	,	,	,
37894	1241	24	and	and	CC
37894	1241	25	it	-PRON-	PRP
37894	1241	26	becomes	become	VBZ
37894	1241	27	apparent	apparent	JJ
37894	1241	28	that	that	IN
37894	1241	29	only	only	RB
37894	1241	30	the	the	DT
37894	1241	31	roughest	rough	JJS
37894	1241	32	sort	sort	RB
37894	1241	33	of	of	IN
37894	1241	34	correlations	correlation	NNS
37894	1241	35	are	be	VBP
37894	1241	36	to	to	TO
37894	1241	37	be	be	VB
37894	1241	38	expected	expect	VBN
37894	1241	39	.	.	.
37894	1242	1	However	however	RB
37894	1242	2	,	,	,
37894	1242	3	as	as	IN
37894	1242	4	will	will	MD
37894	1242	5	be	be	VB
37894	1242	6	seen	see	VBN
37894	1242	7	from	from	IN
37894	1242	8	a	a	DT
37894	1242	9	study	study	NN
37894	1242	10	of	of	IN
37894	1242	11	the	the	DT
37894	1242	12	accompanying	accompany	VBG
37894	1242	13	maps	map	NNS
37894	1242	14	(	(	-LRB-
37894	1242	15	Figures	Figures	NNP
37894	1242	16	40	40	CD
37894	1242	17	-	-	SYM
37894	1242	18	47	47	CD
37894	1242	19	)	)	-RRB-
37894	1242	20	,	,	,
37894	1242	21	the	the	DT
37894	1242	22	shifts	shift	NNS
37894	1242	23	in	in	IN
37894	1242	24	wind	wind	NN
37894	1242	25	direction	direction	NN
37894	1242	26	from	from	IN
37894	1242	27	the	the	DT
37894	1242	28	surface	surface	NN
37894	1242	29	up	up	IN
37894	1242	30	to	to	TO
37894	1242	31	4,000	4,000	CD
37894	1242	32	feet	foot	NNS
37894	1242	33	above	above	IN
37894	1242	34	sea	sea	NN
37894	1242	35	level	level	NN
37894	1242	36	are	be	VBP
37894	1242	37	not	not	RB
37894	1242	38	pronounced	pronounce	VBN
37894	1242	39	in	in	IN
37894	1242	40	most	most	JJS
37894	1242	41	of	of	IN
37894	1242	42	the	the	DT
37894	1242	43	instances	instance	NNS
37894	1242	44	at	at	IN
37894	1242	45	issue	issue	NN
37894	1242	46	,	,	,
37894	1242	47	and	and	CC
37894	1242	48	such	such	JJ
37894	1242	49	variations	variation	NNS
37894	1242	50	as	as	IN
37894	1242	51	do	do	VBP
37894	1242	52	occur	occur	VB
37894	1242	53	are	be	VBP
37894	1242	54	usually	usually	RB
37894	1242	55	in	in	IN
37894	1242	56	a	a	DT
37894	1242	57	clockwise	clockwise	JJ
37894	1242	58	direction	direction	NN
37894	1242	59	.	.	.
37894	1243	1	All	all	DT
37894	1243	2	in	in	IN
37894	1243	3	all	all	DT
37894	1243	4	,	,	,
37894	1243	5	except	except	IN
37894	1243	6	for	for	IN
37894	1243	7	regions	region	NNS
37894	1243	8	where	where	WRB
37894	1243	9	frontal	frontal	JJ
37894	1243	10	activity	activity	NN
37894	1243	11	is	be	VBZ
37894	1243	12	occurring	occur	VBG
37894	1243	13	,	,	,
37894	1243	14	the	the	DT
37894	1243	15	weather	weather	NN
37894	1243	16	maps	map	NNS
37894	1243	17	give	give	VBP
37894	1243	18	a	a	DT
37894	1243	19	workable	workable	JJ
37894	1243	20	approximation	approximation	NN
37894	1243	21	to	to	IN
37894	1243	22	the	the	DT
37894	1243	23	average	average	JJ
37894	1243	24	meteorological	meteorological	JJ
37894	1243	25	conditions	condition	NNS
37894	1243	26	on	on	IN
37894	1243	27	a	a	DT
37894	1243	28	given	give	VBN
37894	1243	29	night	night	NN
37894	1243	30	.	.	.
37894	1244	1	The	the	DT
37894	1244	2	maps	map	NNS
37894	1244	3	(	(	-LRB-
37894	1244	4	Figures	Figures	NNP
37894	1244	5	40	40	CD
37894	1244	6	-	-	SYM
37894	1244	7	47	47	CD
37894	1244	8	)	)	-RRB-
37894	1244	9	permit	permit	NN
37894	1244	10	,	,	,
37894	1244	11	first	first	RB
37894	1244	12	,	,	,
37894	1244	13	study	study	NN
37894	1244	14	of	of	IN
37894	1244	15	the	the	DT
37894	1244	16	number	number	NN
37894	1244	17	of	of	IN
37894	1244	18	instances	instance	NNS
37894	1244	19	in	in	IN
37894	1244	20	which	which	WDT
37894	1244	21	the	the	DT
37894	1244	22	main	main	JJ
37894	1244	23	trend	trend	NN
37894	1244	24	of	of	IN
37894	1244	25	flight	flight	NN
37894	1244	26	,	,	,
37894	1244	27	as	as	IN
37894	1244	28	shown	show	VBN
37894	1244	29	by	by	IN
37894	1244	30	the	the	DT
37894	1244	31	vector	vector	NN
37894	1244	32	resultant	resultant	NN
37894	1244	33	,	,	,
37894	1244	34	parallels	parallel	VBZ
37894	1244	35	the	the	DT
37894	1244	36	direction	direction	NN
37894	1244	37	of	of	IN
37894	1244	38	wind	wind	NN
37894	1244	39	at	at	IN
37894	1244	40	a	a	DT
37894	1244	41	reasonable	reasonable	JJ
37894	1244	42	potential	potential	JJ
37894	1244	43	mean	mean	JJ
37894	1244	44	flight	flight	NN
37894	1244	45	elevation	elevation	NN
37894	1244	46	,	,	,
37894	1244	47	and	and	CC
37894	1244	48	,	,	,
37894	1244	49	second	second	JJ
37894	1244	50	,	,	,
37894	1244	51	comparison	comparison	NN
37894	1244	52	of	of	IN
37894	1244	53	the	the	DT
37894	1244	54	larger	large	JJR
37894	1244	55	individual	individual	JJ
37894	1244	56	sector	sector	NN
37894	1244	57	vectors	vector	NNS
37894	1244	58	and	and	CC
37894	1244	59	the	the	DT
37894	1244	60	wind	wind	NN
37894	1244	61	currents	current	NNS
37894	1244	62	at	at	IN
37894	1244	63	any	any	DT
37894	1244	64	elevation	elevation	NN
37894	1244	65	below	below	IN
37894	1244	66	the	the	DT
37894	1244	67	tenable	tenable	JJ
37894	1244	68	flight	flight	NN
37894	1244	69	ceiling	ceiling	NN
37894	1244	70	--	--	:
37894	1244	71	one	one	CD
37894	1244	72	mile	mile	NN
37894	1244	73	.	.	.
37894	1245	1	On	on	IN
37894	1245	2	the	the	DT
37894	1245	3	whole	whole	NN
37894	1245	4	,	,	,
37894	1245	5	inspection	inspection	NN
37894	1245	6	of	of	IN
37894	1245	7	the	the	DT
37894	1245	8	trend	trend	NN
37894	1245	9	of	of	IN
37894	1245	10	bird	bird	NN
37894	1245	11	-	-	HYPH
37894	1245	12	flight	flight	NN
37894	1245	13	and	and	CC
37894	1245	14	wind	wind	NN
37894	1245	15	direction	direction	NN
37894	1245	16	on	on	IN
37894	1245	17	specific	specific	JJ
37894	1245	18	nights	night	NNS
37894	1245	19	supports	support	VBZ
37894	1245	20	the	the	DT
37894	1245	21	principle	principle	NN
37894	1245	22	that	that	IN
37894	1245	23	the	the	DT
37894	1245	24	flow	flow	NN
37894	1245	25	of	of	IN
37894	1245	26	migration	migration	NN
37894	1245	27	is	be	VBZ
37894	1245	28	in	in	IN
37894	1245	29	general	general	JJ
37894	1245	30	coincident	coincident	NN
37894	1245	31	with	with	IN
37894	1245	32	the	the	DT
37894	1245	33	flow	flow	NN
37894	1245	34	of	of	IN
37894	1245	35	air	air	NN
37894	1245	36	.	.	.
37894	1246	1	It	-PRON-	PRP
37894	1246	2	might	may	MD
37894	1246	3	be	be	VB
37894	1246	4	argued	argue	VBN
37894	1246	5	that	that	IN
37894	1246	6	when	when	WRB
37894	1246	7	the	the	DT
37894	1246	8	flow	flow	NN
37894	1246	9	of	of	IN
37894	1246	10	air	air	NN
37894	1246	11	is	be	VBZ
37894	1246	12	toward	toward	IN
37894	1246	13	the	the	DT
37894	1246	14	north	north	NN
37894	1246	15	,	,	,
37894	1246	16	and	and	CC
37894	1246	17	when	when	WRB
37894	1246	18	birds	bird	NNS
37894	1246	19	in	in	IN
37894	1246	20	spring	spring	NN
37894	1246	21	are	be	VBP
37894	1246	22	proceeding	proceed	VBG
37894	1246	23	normally	normally	RB
37894	1246	24	in	in	IN
37894	1246	25	that	that	DT
37894	1246	26	direction	direction	NN
37894	1246	27	,	,	,
37894	1246	28	no	no	DT
37894	1246	29	significance	significance	NN
37894	1246	30	can	can	MD
37894	1246	31	be	be	VB
37894	1246	32	attached	attach	VBN
37894	1246	33	to	to	IN
37894	1246	34	the	the	DT
37894	1246	35	agreement	agreement	NN
37894	1246	36	of	of	IN
37894	1246	37	the	the	DT
37894	1246	38	two	two	CD
37894	1246	39	trends	trend	NNS
37894	1246	40	.	.	.
37894	1247	1	However	however	RB
37894	1247	2	,	,	,
37894	1247	3	the	the	DT
37894	1247	4	same	same	JJ
37894	1247	5	coincidence	coincidence	NN
37894	1247	6	of	of	IN
37894	1247	7	wind	wind	NN
37894	1247	8	directions	direction	NNS
37894	1247	9	and	and	CC
37894	1247	10	bird	bird	NN
37894	1247	11	flights	flight	NNS
37894	1247	12	seems	seem	VBZ
37894	1247	13	to	to	TO
37894	1247	14	be	be	VB
37894	1247	15	maintained	maintain	VBN
37894	1247	16	when	when	WRB
37894	1247	17	the	the	DT
37894	1247	18	wind	wind	NN
37894	1247	19	currents	current	NNS
37894	1247	20	deviate	deviate	VBP
37894	1247	21	markedly	markedly	RB
37894	1247	22	from	from	IN
37894	1247	23	a	a	DT
37894	1247	24	northward	northward	NN
37894	1247	25	trajectory	trajectory	CD
37894	1247	26	.	.	.
37894	1248	1	Figures	figure	NNS
37894	1248	2	46	46	CD
37894	1248	3	and	and	CC
37894	1248	4	47	47	CD
37894	1248	5	,	,	,
37894	1248	6	particularly	particularly	RB
37894	1248	7	in	in	IN
37894	1248	8	regard	regard	NN
37894	1248	9	to	to	IN
37894	1248	10	the	the	DT
37894	1248	11	unusual	unusual	JJ
37894	1248	12	slants	slant	NNS
37894	1248	13	of	of	IN
37894	1248	14	the	the	DT
37894	1248	15	flight	flight	NN
37894	1248	16	vectors	vector	NNS
37894	1248	17	at	at	IN
37894	1248	18	Ottumwa	Ottumwa	NNP
37894	1248	19	,	,	,
37894	1248	20	Knoxville	Knoxville	NNP
37894	1248	21	,	,	,
37894	1248	22	and	and	CC
37894	1248	23	Memphis	Memphis	NNP
37894	1248	24	,	,	,
37894	1248	25	illustrate	illustrate	VBP
37894	1248	26	that	that	IN
37894	1248	27	this	this	DT
37894	1248	28	coincidence	coincidence	NN
37894	1248	29	holds	hold	VBZ
37894	1248	30	even	even	RB
37894	1248	31	when	when	WRB
37894	1248	32	the	the	DT
37894	1248	33	wind	wind	NN
37894	1248	34	is	be	VBZ
37894	1248	35	proceeding	proceed	VBG
37894	1248	36	obliquely	obliquely	RB
37894	1248	37	eastward	eastward	RB
37894	1248	38	or	or	CC
37894	1248	39	westward	westward	RB
37894	1248	40	.	.	.
37894	1249	1	On	on	IN
37894	1249	2	the	the	DT
37894	1249	3	night	night	NN
37894	1249	4	of	of	IN
37894	1249	5	May	May	NNP
37894	1249	6	22	22	CD
37894	1249	7	-	-	SYM
37894	1249	8	23	23	CD
37894	1249	9	,	,	,
37894	1249	10	when	when	WRB
37894	1249	11	a	a	DT
37894	1249	12	high	high	JJ
37894	1249	13	pressure	pressure	NN
37894	1249	14	area	area	NN
37894	1249	15	prevailed	prevail	VBD
37894	1249	16	from	from	IN
37894	1249	17	southern	southern	JJ
37894	1249	18	Iowa	Iowa	NNP
37894	1249	19	to	to	IN
37894	1249	20	the	the	DT
37894	1249	21	Atlantic	Atlantic	NNP
37894	1249	22	coast	coast	NN
37894	1249	23	,	,	,
37894	1249	24	and	and	CC
37894	1249	25	the	the	DT
37894	1249	26	trajectory	trajectory	NN
37894	1249	27	of	of	IN
37894	1249	28	the	the	DT
37894	1249	29	winds	wind	NNS
37894	1249	30	was	be	VBD
37894	1249	31	northward	northward	JJ
37894	1249	32	,	,	,
37894	1249	33	migration	migration	NN
37894	1249	34	activity	activity	NN
37894	1249	35	at	at	IN
37894	1249	36	Knoxville	Knoxville	NNP
37894	1249	37	and	and	CC
37894	1249	38	Ottumwa	Ottumwa	NNP
37894	1249	39	was	be	VBD
37894	1249	40	greatly	greatly	RB
37894	1249	41	increased	increase	VBN
37894	1249	42	and	and	CC
37894	1249	43	the	the	DT
37894	1249	44	flow	flow	NN
37894	1249	45	of	of	IN
37894	1249	46	birds	bird	NNS
37894	1249	47	was	be	VBD
37894	1249	48	again	again	RB
37894	1249	49	northward	northward	RB
37894	1249	50	in	in	IN
37894	1249	51	the	the	DT
37894	1249	52	normal	normal	JJ
37894	1249	53	seasonal	seasonal	JJ
37894	1249	54	direction	direction	NN
37894	1249	55	of	of	IN
37894	1249	56	migration	migration	NN
37894	1249	57	.	.	.
37894	1250	1	Further	further	JJ
37894	1250	2	study	study	NN
37894	1250	3	of	of	IN
37894	1250	4	the	the	DT
37894	1250	5	data	data	NN
37894	1250	6	shows	show	NNS
37894	1250	7	fairly	fairly	RB
37894	1250	8	conclusively	conclusively	RB
37894	1250	9	that	that	IN
37894	1250	10	maximum	maximum	JJ
37894	1250	11	migration	migration	NN
37894	1250	12	activity	activity	NN
37894	1250	13	occurs	occur	VBZ
37894	1250	14	in	in	IN
37894	1250	15	the	the	DT
37894	1250	16	regions	region	NNS
37894	1250	17	of	of	IN
37894	1250	18	high	high	JJ
37894	1250	19	barometric	barometric	JJ
37894	1250	20	pressure	pressure	NN
37894	1250	21	and	and	CC
37894	1250	22	that	that	IN
37894	1250	23	the	the	DT
37894	1250	24	volume	volume	NN
37894	1250	25	of	of	IN
37894	1250	26	migration	migration	NN
37894	1250	27	is	be	VBZ
37894	1250	28	either	either	CC
37894	1250	29	low	low	JJ
37894	1250	30	or	or	CC
37894	1250	31	negligible	negligible	JJ
37894	1250	32	in	in	IN
37894	1250	33	regions	region	NNS
37894	1250	34	of	of	IN
37894	1250	35	low	low	JJ
37894	1250	36	pressure	pressure	NN
37894	1250	37	.	.	.
37894	1251	1	The	the	DT
37894	1251	2	passage	passage	NN
37894	1251	3	of	of	IN
37894	1251	4	a	a	DT
37894	1251	5	cold	cold	JJ
37894	1251	6	-	-	HYPH
37894	1251	7	front	front	NN
37894	1251	8	storm	storm	NN
37894	1251	9	may	may	MD
37894	1251	10	almost	almost	RB
37894	1251	11	halt	halt	VB
37894	1251	12	migration	migration	NN
37894	1251	13	in	in	IN
37894	1251	14	spring	spring	NN
37894	1251	15	.	.	.
37894	1252	1	This	this	DT
37894	1252	2	was	be	VBD
37894	1252	3	demonstrated	demonstrate	VBN
37894	1252	4	first	first	RB
37894	1252	5	to	to	IN
37894	1252	6	me	-PRON-	PRP
37894	1252	7	by	by	IN
37894	1252	8	the	the	DT
37894	1252	9	telescopic	telescopic	JJ
37894	1252	10	method	method	NN
37894	1252	11	at	at	IN
37894	1252	12	Baton	Baton	NNP
37894	1252	13	Rouge	Rouge	NNP
37894	1252	14	,	,	,
37894	1252	15	on	on	IN
37894	1252	16	April	April	NNP
37894	1252	17	12	12	CD
37894	1252	18	,	,	,
37894	1252	19	1946	1946	CD
37894	1252	20	,	,	,
37894	1252	21	following	follow	VBG
37894	1252	22	a	a	DT
37894	1252	23	strong	strong	JJ
37894	1252	24	cold	cold	JJ
37894	1252	25	front	front	NN
37894	1252	26	that	that	WDT
37894	1252	27	pushed	push	VBD
37894	1252	28	southeastward	southeastward	RB
37894	1252	29	across	across	IN
37894	1252	30	the	the	DT
37894	1252	31	Gulf	Gulf	NNP
37894	1252	32	coastal	coastal	JJ
37894	1252	33	plain	plain	NN
37894	1252	34	and	and	CC
37894	1252	35	over	over	IN
37894	1252	36	the	the	DT
37894	1252	37	eastern	eastern	JJ
37894	1252	38	Gulf	Gulf	NNP
37894	1252	39	of	of	IN
37894	1252	40	Mexico	Mexico	NNP
37894	1252	41	.	.	.
37894	1253	1	The	the	DT
37894	1253	2	winds	wind	NNS
37894	1253	3	,	,	,
37894	1253	4	as	as	IN
37894	1253	5	usual	usual	JJ
37894	1253	6	,	,	,
37894	1253	7	shifted	shift	VBD
37894	1253	8	and	and	CC
37894	1253	9	became	become	VBD
37894	1253	10	strong	strong	JJ
37894	1253	11	northerly	northerly	RB
37894	1253	12	.	.	.
37894	1254	1	On	on	IN
37894	1254	2	this	this	DT
37894	1254	3	night	night	NN
37894	1254	4	,	,	,
37894	1254	5	following	follow	VBG
37894	1254	6	the	the	DT
37894	1254	7	shift	shift	NN
37894	1254	8	of	of	IN
37894	1254	9	the	the	DT
37894	1254	10	wind	wind	NN
37894	1254	11	,	,	,
37894	1254	12	only	only	RB
37894	1254	13	three	three	CD
37894	1254	14	birds	bird	NNS
37894	1254	15	were	be	VBD
37894	1254	16	seen	see	VBN
37894	1254	17	in	in	IN
37894	1254	18	seven	seven	CD
37894	1254	19	hours	hour	NNS
37894	1254	20	of	of	IN
37894	1254	21	continuous	continuous	JJ
37894	1254	22	observation	observation	NN
37894	1254	23	.	.	.
37894	1255	1	Three	three	CD
37894	1255	2	nights	night	NNS
37894	1255	3	later	later	RB
37894	1255	4	,	,	,
37894	1255	5	however	however	RB
37894	1255	6	,	,	,
37894	1255	7	on	on	IN
37894	1255	8	April	April	NNP
37894	1255	9	15	15	CD
37894	1255	10	,	,	,
37894	1255	11	when	when	WRB
37894	1255	12	the	the	DT
37894	1255	13	warm	warm	JJ
37894	1255	14	air	air	NN
37894	1255	15	of	of	IN
37894	1255	16	the	the	DT
37894	1255	17	Gulf	Gulf	NNP
37894	1255	18	was	be	VBD
37894	1255	19	again	again	RB
37894	1255	20	flowing	flow	VBG
37894	1255	21	from	from	IN
37894	1255	22	the	the	DT
37894	1255	23	south	south	NN
37894	1255	24	,	,	,
37894	1255	25	I	-PRON-	PRP
37894	1255	26	saw	see	VBD
37894	1255	27	104	104	CD
37894	1255	28	birds	bird	NNS
37894	1255	29	through	through	IN
37894	1255	30	the	the	DT
37894	1255	31	telescope	telescope	NN
37894	1255	32	in	in	IN
37894	1255	33	two	two	CD
37894	1255	34	hours	hour	NNS
37894	1255	35	.	.	.
37894	1256	1	Apropos	Apropos	NNP
37894	1256	2	of	of	IN
37894	1256	3	this	this	DT
37894	1256	4	consideration	consideration	NN
37894	1256	5	in	in	IN
37894	1256	6	the	the	DT
37894	1256	7	1948	1948	CD
37894	1256	8	data	datum	NNS
37894	1256	9	are	be	VBP
37894	1256	10	the	the	DT
37894	1256	11	nights	night	NNS
37894	1256	12	of	of	IN
37894	1256	13	May	May	NNP
37894	1256	14	21	21	CD
37894	1256	15	-	-	SYM
37894	1256	16	22	22	CD
37894	1256	17	and	and	CC
37894	1256	18	22	22	CD
37894	1256	19	-	-	SYM
37894	1256	20	23	23	CD
37894	1256	21	.	.	.
37894	1257	1	[	[	-LRB-
37894	1257	2	Illustration	illustration	NN
37894	1257	3	:	:	:
37894	1257	4	FIG	FIG	NNP
37894	1257	5	.	.	.
37894	1258	1	40	40	CD
37894	1258	2	.	.	.
37894	1259	1	Comparison	comparison	NN
37894	1259	2	of	of	IN
37894	1259	3	flight	flight	NN
37894	1259	4	trends	trend	NNS
37894	1259	5	and	and	CC
37894	1259	6	surface	surface	NN
37894	1259	7	weather	weather	NN
37894	1259	8	conditions	condition	NNS
37894	1259	9	on	on	IN
37894	1259	10	April	April	NNP
37894	1259	11	22	22	CD
37894	1259	12	-	-	SYM
37894	1259	13	23	23	CD
37894	1259	14	,	,	,
37894	1259	15	1948	1948	CD
37894	1259	16	.	.	.
37894	1260	1	The	the	DT
37894	1260	2	meteorological	meteorological	JJ
37894	1260	3	data	datum	NNS
37894	1260	4	were	be	VBD
37894	1260	5	taken	take	VBN
37894	1260	6	from	from	IN
37894	1260	7	the	the	DT
37894	1260	8	U.	U.	NNP
37894	1260	9	S.	S.	NNP
37894	1260	10	Weather	Weather	NNP
37894	1260	11	Bureau	Bureau	NNP
37894	1260	12	Daily	Daily	NNP
37894	1260	13	Weather	Weather	NNP
37894	1260	14	Map	Map	NNP
37894	1260	15	for	for	IN
37894	1260	16	12:30	12:30	CD
37894	1260	17	A.	a.	NN
37894	1260	18	M.	M.	NNP
37894	1260	19	(	(	-LRB-
37894	1260	20	CST	CST	NNP
37894	1260	21	)	)	-RRB-
37894	1260	22	on	on	IN
37894	1260	23	April	April	NNP
37894	1260	24	23	23	CD
37894	1260	25	.	.	.
37894	1261	1	The	the	DT
37894	1261	2	nightly	nightly	JJ
37894	1261	3	station	station	NN
37894	1261	4	densities	density	NNS
37894	1261	5	and	and	CC
37894	1261	6	the	the	DT
37894	1261	7	average	average	JJ
37894	1261	8	hourly	hourly	JJ
37894	1261	9	station	station	NN
37894	1261	10	density	density	NN
37894	1261	11	(	(	-LRB-
37894	1261	12	shown	show	VBN
37894	1261	13	in	in	IN
37894	1261	14	parentheses	parenthesis	NNS
37894	1261	15	)	)	-RRB-
37894	1261	16	are	be	VBP
37894	1261	17	as	as	IN
37894	1261	18	follows	follow	VBZ
37894	1261	19	:	:	:
37894	1261	20	5	5	CD
37894	1261	21	.	.	.
37894	1262	1	Louisville	Louisville	NNP
37894	1262	2	:	:	:
37894	1262	3	9,100	9,100	CD
37894	1262	4	(	(	-LRB-
37894	1262	5	1,100	1,100	CD
37894	1262	6	)	)	-RRB-
37894	1262	7	6	6	CD
37894	1262	8	.	.	.
37894	1263	1	Murray	Murray	NNP
37894	1263	2	:	:	:
37894	1263	3	16,300	16,300	CD
37894	1263	4	(	(	-LRB-
37894	1263	5	2,700	2,700	CD
37894	1263	6	)	)	-RRB-
37894	1263	7	8	8	CD
37894	1263	8	.	.	.
37894	1264	1	Stillwater	stillwater	NN
37894	1264	2	:	:	:
37894	1264	3	1,900	1,900	CD
37894	1264	4	(	(	-LRB-
37894	1264	5	500	500	CD
37894	1264	6	)	)	-RRB-
37894	1264	7	9	9	CD
37894	1264	8	.	.	.
37894	1265	1	Knoxville	Knoxville	NNP
37894	1265	2	:	:	:
37894	1265	3	15,200	15,200	CD
37894	1265	4	(	(	-LRB-
37894	1265	5	1,700	1,700	CD
37894	1265	6	)	)	-RRB-
37894	1265	7	13	13	CD
37894	1265	8	.	.	.
37894	1266	1	Oak	Oak	NNP
37894	1266	2	Grove	Grove	NNP
37894	1266	3	:	:	:
37894	1266	4	13,600	13,600	CD
37894	1266	5	(	(	-LRB-
37894	1266	6	1,700	1,700	CD
37894	1266	7	)	)	-RRB-
37894	1266	8	16	16	CD
37894	1266	9	.	.	.
37894	1267	1	College	College	NNP
37894	1267	2	Station	Station	NNP
37894	1267	3	:	:	:
37894	1267	4	13,300	13,300	CD
37894	1267	5	(	(	-LRB-
37894	1267	6	1,900	1,900	CD
37894	1267	7	)	)	-RRB-
37894	1267	8	17	17	CD
37894	1267	9	.	.	.
37894	1268	1	Baton	Baton	NNP
37894	1268	2	Rouge	Rouge	NNP
37894	1268	3	:	:	:
37894	1268	4	6,200	6,200	CD
37894	1268	5	(	(	-LRB-
37894	1268	6	1,000	1,000	CD
37894	1268	7	)	)	-RRB-
37894	1268	8	19	19	CD
37894	1268	9	.	.	.
37894	1269	1	Lafayette	lafayette	NN
37894	1269	2	:	:	:
37894	1269	3	2,800	2,800	CD
37894	1269	4	(	(	-LRB-
37894	1269	5	600	600	CD
37894	1269	6	)	)	-RRB-
37894	1269	7	21	21	CD
37894	1269	8	.	.	.
37894	1270	1	Winter	Winter	NNP
37894	1270	2	Park	Park	NNP
37894	1270	3	:	:	:
37894	1270	4	6,200	6,200	CD
37894	1270	5	(	(	-LRB-
37894	1270	6	700	700	CD
37894	1270	7	)	)	-RRB-
37894	1270	8	23	23	CD
37894	1270	9	.	.	.
37894	1271	1	Tampico	tampico	NN
37894	1271	2	:	:	:
37894	1271	3	11,100	11,100	CD
37894	1271	4	(	(	-LRB-
37894	1271	5	3,700	3,700	CD
37894	1271	6	)	)	-RRB-
37894	1271	7	]	]	-RRB-
37894	1271	8	[	[	-LRB-
37894	1271	9	Illustration	illustration	NN
37894	1271	10	:	:	:
37894	1271	11	FIG	FIG	NNP
37894	1271	12	.	.	.
37894	1272	1	41	41	CD
37894	1272	2	.	.	.
37894	1273	1	Winds	wind	NNS
37894	1273	2	aloft	aloft	RB
37894	1273	3	at	at	IN
37894	1273	4	10:00	10:00	CD
37894	1273	5	P.	P.	NNP
37894	1273	6	M.	M.	NNP
37894	1273	7	on	on	IN
37894	1273	8	April	April	NNP
37894	1273	9	22	22	CD
37894	1273	10	(	(	-LRB-
37894	1273	11	CST	CST	NNP
37894	1273	12	)	)	-RRB-
37894	1273	13	.	.	.
37894	1274	1	Winds	wind	NNS
37894	1274	2	at	at	IN
37894	1274	3	2,000	2,000	CD
37894	1274	4	feet	foot	NNS
37894	1274	5	above	above	IN
37894	1274	6	mean	mean	VBP
37894	1274	7	sea	sea	NN
37894	1274	8	level	level	NN
37894	1274	9	are	be	VBP
37894	1274	10	shown	show	VBN
37894	1274	11	in	in	IN
37894	1274	12	black	black	JJ
37894	1274	13	;	;	:
37894	1274	14	those	those	DT
37894	1274	15	at	at	IN
37894	1274	16	4,000	4,000	CD
37894	1274	17	feet	foot	NNS
37894	1274	18	,	,	,
37894	1274	19	in	in	IN
37894	1274	20	white	white	JJ
37894	1274	21	.	.	.
37894	1275	1	Velocities	velocity	NNS
37894	1275	2	are	be	VBP
37894	1275	3	indicated	indicate	VBN
37894	1275	4	by	by	IN
37894	1275	5	standard	standard	JJ
37894	1275	6	Beaufort	Beaufort	NNP
37894	1275	7	Scale	Scale	NNP
37894	1275	8	of	of	IN
37894	1275	9	Wind	Wind	NNP
37894	1275	10	Force	Force	NNP
37894	1275	11	.	.	.
37894	1276	1	The	the	DT
37894	1276	2	numbers	number	NNS
37894	1276	3	in	in	IN
37894	1276	4	circles	circle	NNS
37894	1276	5	refer	refer	VBP
37894	1276	6	to	to	IN
37894	1276	7	the	the	DT
37894	1276	8	stations	station	NNS
37894	1276	9	shown	show	VBN
37894	1276	10	in	in	IN
37894	1276	11	Figure	Figure	NNP
37894	1276	12	40	40	CD
37894	1276	13	.	.	.
37894	1276	14	]	]	-RRB-
37894	1277	1	Correction	correction	NN
37894	1277	2	:	:	:
37894	1277	3	Figures	figure	NNS
37894	1277	4	41	41	CD
37894	1277	5	and	and	CC
37894	1277	6	45	45	CD
37894	1277	7	were	be	VBD
37894	1277	8	inadvertently	inadvertently	RB
37894	1277	9	transposed	transpose	VBN
37894	1277	10	.	.	.
37894	1278	1	[	[	-LRB-
37894	1278	2	Illustration	illustration	NN
37894	1278	3	:	:	:
37894	1278	4	FIG	FIG	NNP
37894	1278	5	.	.	.
37894	1279	1	42	42	CD
37894	1279	2	.	.	.
37894	1280	1	Comparison	comparison	NN
37894	1280	2	of	of	IN
37894	1280	3	flight	flight	NN
37894	1280	4	trends	trend	NNS
37894	1280	5	and	and	CC
37894	1280	6	surface	surface	NN
37894	1280	7	weather	weather	NN
37894	1280	8	conditions	condition	NNS
37894	1280	9	on	on	IN
37894	1280	10	April	April	NNP
37894	1280	11	23	23	CD
37894	1280	12	-	-	SYM
37894	1280	13	24	24	CD
37894	1280	14	,	,	,
37894	1280	15	1948	1948	CD
37894	1280	16	.	.	.
37894	1281	1	The	the	DT
37894	1281	2	meteorological	meteorological	JJ
37894	1281	3	data	datum	NNS
37894	1281	4	were	be	VBD
37894	1281	5	taken	take	VBN
37894	1281	6	from	from	IN
37894	1281	7	the	the	DT
37894	1281	8	U.	U.	NNP
37894	1281	9	S.	S.	NNP
37894	1281	10	Weather	Weather	NNP
37894	1281	11	Bureau	Bureau	NNP
37894	1281	12	Daily	Daily	NNP
37894	1281	13	Weather	Weather	NNP
37894	1281	14	Map	Map	NNP
37894	1281	15	for	for	IN
37894	1281	16	12:30	12:30	CD
37894	1281	17	A.	a.	NN
37894	1281	18	M.	M.	NNP
37894	1281	19	(	(	-LRB-
37894	1281	20	CST	CST	NNP
37894	1281	21	)	)	-RRB-
37894	1281	22	on	on	IN
37894	1281	23	April	April	NNP
37894	1281	24	24	24	CD
37894	1281	25	.	.	.
37894	1282	1	The	the	DT
37894	1282	2	nightly	nightly	JJ
37894	1282	3	station	station	NN
37894	1282	4	densities	density	NNS
37894	1282	5	and	and	CC
37894	1282	6	the	the	DT
37894	1282	7	average	average	JJ
37894	1282	8	hourly	hourly	JJ
37894	1282	9	station	station	NN
37894	1282	10	density	density	NN
37894	1282	11	(	(	-LRB-
37894	1282	12	shown	show	VBN
37894	1282	13	in	in	IN
37894	1282	14	parentheses	parenthesis	NNS
37894	1282	15	)	)	-RRB-
37894	1282	16	are	be	VBP
37894	1282	17	as	as	IN
37894	1282	18	follows	follow	VBZ
37894	1282	19	:	:	:
37894	1282	20	1	1	CD
37894	1282	21	.	.	.
37894	1283	1	Albion	albion	NN
37894	1283	2	:	:	:
37894	1283	3	1,100	1,100	CD
37894	1283	4	(	(	-LRB-
37894	1283	5	300	300	CD
37894	1283	6	)	)	-RRB-
37894	1283	7	2	2	CD
37894	1283	8	.	.	.
37894	1284	1	Ottumwa	ottumwa	NN
37894	1284	2	:	:	:
37894	1284	3	5,500	5,500	CD
37894	1284	4	(	(	-LRB-
37894	1284	5	900	900	CD
37894	1284	6	)	)	-RRB-
37894	1284	7	4	4	CD
37894	1284	8	.	.	.
37894	1285	1	Lawrence	Lawrence	NNP
37894	1285	2	:	:	:
37894	1285	3	5,400	5,400	CD
37894	1285	4	(	(	-LRB-
37894	1285	5	1,400	1,400	CD
37894	1285	6	)	)	-RRB-
37894	1285	7	5	5	CD
37894	1285	8	.	.	.
37894	1286	1	Louisville	Louisville	NNP
37894	1286	2	:	:	:
37894	1286	3	13,300	13,300	CD
37894	1286	4	(	(	-LRB-
37894	1286	5	2,700	2,700	CD
37894	1286	6	)	)	-RRB-
37894	1286	7	6	6	CD
37894	1286	8	.	.	.
37894	1287	1	Murray	Murray	NNP
37894	1287	2	:	:	:
37894	1287	3	9,800	9,800	CD
37894	1287	4	(	(	-LRB-
37894	1287	5	1,400	1,400	CD
37894	1287	6	)	)	-RRB-
37894	1287	7	8	8	CD
37894	1287	8	.	.	.
37894	1288	1	Stillwater	stillwater	NN
37894	1288	2	:	:	:
37894	1288	3	800	800	CD
37894	1288	4	(	(	-LRB-
37894	1288	5	100	100	CD
37894	1288	6	)	)	-RRB-
37894	1288	7	9	9	CD
37894	1288	8	.	.	.
37894	1289	1	Knoxville	Knoxville	NNP
37894	1289	2	:	:	:
37894	1289	3	8,000	8,000	CD
37894	1289	4	(	(	-LRB-
37894	1289	5	900	900	CD
37894	1289	6	)	)	-RRB-
37894	1289	7	10	10	CD
37894	1289	8	.	.	.
37894	1290	1	Memphis	Memphis	NNP
37894	1290	2	:	:	:
37894	1290	3	7,900	7,900	CD
37894	1290	4	(	(	-LRB-
37894	1290	5	1,000	1,000	CD
37894	1290	6	)	)	-RRB-
37894	1290	7	14	14	CD
37894	1290	8	.	.	.
37894	1291	1	Mansfield	Mansfield	NNP
37894	1291	2	:	:	:
37894	1291	3	4,900	4,900	CD
37894	1291	4	(	(	-LRB-
37894	1291	5	1,200	1,200	CD
37894	1291	6	)	)	-RRB-
37894	1291	7	16	16	CD
37894	1291	8	.	.	.
37894	1292	1	College	College	NNP
37894	1292	2	Station	Station	NNP
37894	1292	3	:	:	:
37894	1292	4	700	700	CD
37894	1292	5	(	(	-LRB-
37894	1292	6	100	100	CD
37894	1292	7	)	)	-RRB-
37894	1292	8	17	17	CD
37894	1292	9	.	.	.
37894	1293	1	Baton	Baton	NNP
37894	1293	2	Rouge	Rouge	NNP
37894	1293	3	:	:	:
37894	1293	4	1,700	1,700	CD
37894	1293	5	(	(	-LRB-
37894	1293	6	400	400	CD
37894	1293	7	)	)	-RRB-
37894	1293	8	18	18	CD
37894	1293	9	.	.	.
37894	1294	1	Pensacola	pensacola	NN
37894	1294	2	:	:	:
37894	1294	3	migration	migration	NN
37894	1294	4	negligible	negligible	JJ
37894	1294	5	20	20	CD
37894	1294	6	.	.	.
37894	1295	1	New	New	NNP
37894	1295	2	Orleans	Orleans	NNP
37894	1295	3	:	:	:
37894	1295	4	1,600	1,600	CD
37894	1295	5	(	(	-LRB-
37894	1295	6	800	800	CD
37894	1295	7	)	)	-RRB-
37894	1295	8	21	21	CD
37894	1295	9	.	.	.
37894	1296	1	Winter	Winter	NNP
37894	1296	2	Park	Park	NNP
37894	1296	3	:	:	:
37894	1296	4	2,700	2,700	CD
37894	1296	5	(	(	-LRB-
37894	1296	6	300	300	CD
37894	1296	7	)	)	-RRB-
37894	1296	8	23	23	CD
37894	1296	9	.	.	.
37894	1297	1	Tampico	tampico	NN
37894	1297	2	:	:	:
37894	1297	3	63,600	63,600	CD
37894	1297	4	(	(	-LRB-
37894	1297	5	6,300	6,300	CD
37894	1297	6	)	)	-RRB-
37894	1297	7	24	24	CD
37894	1297	8	.	.	.
37894	1298	1	Progreso	progreso	NN
37894	1298	2	:	:	:
37894	1298	3	31,300	31,300	CD
37894	1298	4	(	(	-LRB-
37894	1298	5	3,900	3,900	CD
37894	1298	6	)	)	-RRB-
37894	1298	7	]	]	-RRB-
37894	1298	8	[	[	-LRB-
37894	1298	9	Illustration	illustration	NN
37894	1298	10	:	:	:
37894	1298	11	FIG	FIG	NNP
37894	1298	12	.	.	.
37894	1299	1	43	43	CD
37894	1299	2	.	.	.
37894	1300	1	Winds	wind	NNS
37894	1300	2	aloft	aloft	RB
37894	1300	3	at	at	IN
37894	1300	4	10:00	10:00	CD
37894	1300	5	P.	P.	NNP
37894	1300	6	M.	M.	NNP
37894	1300	7	on	on	IN
37894	1300	8	April	April	NNP
37894	1300	9	23	23	CD
37894	1300	10	(	(	-LRB-
37894	1300	11	CST	CST	NNP
37894	1300	12	)	)	-RRB-
37894	1300	13	.	.	.
37894	1301	1	Winds	wind	NNS
37894	1301	2	at	at	IN
37894	1301	3	2,000	2,000	CD
37894	1301	4	feet	foot	NNS
37894	1301	5	above	above	IN
37894	1301	6	mean	mean	VBP
37894	1301	7	sea	sea	NN
37894	1301	8	level	level	NN
37894	1301	9	are	be	VBP
37894	1301	10	shown	show	VBN
37894	1301	11	in	in	IN
37894	1301	12	black	black	JJ
37894	1301	13	;	;	:
37894	1301	14	those	those	DT
37894	1301	15	at	at	IN
37894	1301	16	4,000	4,000	CD
37894	1301	17	feet	foot	NNS
37894	1301	18	,	,	,
37894	1301	19	in	in	IN
37894	1301	20	white	white	JJ
37894	1301	21	.	.	.
37894	1302	1	Velocities	velocity	NNS
37894	1302	2	are	be	VBP
37894	1302	3	indicated	indicate	VBN
37894	1302	4	by	by	IN
37894	1302	5	standard	standard	JJ
37894	1302	6	Beaufort	Beaufort	NNP
37894	1302	7	Scale	Scale	NNP
37894	1302	8	of	of	IN
37894	1302	9	Wind	Wind	NNP
37894	1302	10	Force	Force	NNP
37894	1302	11	.	.	.
37894	1303	1	The	the	DT
37894	1303	2	numbers	number	NNS
37894	1303	3	in	in	IN
37894	1303	4	circles	circle	NNS
37894	1303	5	refer	refer	VBP
37894	1303	6	to	to	IN
37894	1303	7	the	the	DT
37894	1303	8	stations	station	NNS
37894	1303	9	shown	show	VBN
37894	1303	10	in	in	IN
37894	1303	11	Figure	Figure	NNP
37894	1303	12	42	42	CD
37894	1303	13	.	.	.
37894	1303	14	]	]	-RRB-
37894	1304	1	[	[	-LRB-
37894	1304	2	Illustration	illustration	NN
37894	1304	3	:	:	:
37894	1304	4	FIG	FIG	NNP
37894	1304	5	.	.	.
37894	1305	1	44	44	CD
37894	1305	2	.	.	.
37894	1306	1	Comparison	comparison	NN
37894	1306	2	of	of	IN
37894	1306	3	flight	flight	NN
37894	1306	4	trends	trend	NNS
37894	1306	5	and	and	CC
37894	1306	6	surface	surface	NN
37894	1306	7	weather	weather	NN
37894	1306	8	conditions	condition	NNS
37894	1306	9	on	on	IN
37894	1306	10	April	April	NNP
37894	1306	11	24	24	CD
37894	1306	12	-	-	SYM
37894	1306	13	25	25	CD
37894	1306	14	,	,	,
37894	1306	15	1948	1948	CD
37894	1306	16	.	.	.
37894	1307	1	The	the	DT
37894	1307	2	meteorological	meteorological	JJ
37894	1307	3	data	datum	NNS
37894	1307	4	were	be	VBD
37894	1307	5	taken	take	VBN
37894	1307	6	from	from	IN
37894	1307	7	the	the	DT
37894	1307	8	U.	U.	NNP
37894	1307	9	S.	S.	NNP
37894	1307	10	Weather	Weather	NNP
37894	1307	11	Bureau	Bureau	NNP
37894	1307	12	Daily	Daily	NNP
37894	1307	13	Weather	Weather	NNP
37894	1307	14	Map	Map	NNP
37894	1307	15	for	for	IN
37894	1307	16	12:30	12:30	CD
37894	1307	17	A.	a.	NN
37894	1307	18	M.	M.	NNP
37894	1307	19	(	(	-LRB-
37894	1307	20	CST	CST	NNP
37894	1307	21	)	)	-RRB-
37894	1307	22	on	on	IN
37894	1307	23	April	April	NNP
37894	1307	24	25	25	CD
37894	1307	25	.	.	.
37894	1308	1	The	the	DT
37894	1308	2	nightly	nightly	JJ
37894	1308	3	station	station	NN
37894	1308	4	densities	density	NNS
37894	1308	5	and	and	CC
37894	1308	6	the	the	DT
37894	1308	7	average	average	JJ
37894	1308	8	hourly	hourly	JJ
37894	1308	9	station	station	NN
37894	1308	10	density	density	NN
37894	1308	11	(	(	-LRB-
37894	1308	12	shown	show	VBN
37894	1308	13	in	in	IN
37894	1308	14	parentheses	parenthesis	NNS
37894	1308	15	)	)	-RRB-
37894	1308	16	are	be	VBP
37894	1308	17	as	as	IN
37894	1308	18	follows	follow	VBZ
37894	1308	19	:	:	:
37894	1308	20	1	1	CD
37894	1308	21	.	.	.
37894	1309	1	Albion	albion	NN
37894	1309	2	:	:	:
37894	1309	3	migration	migration	NN
37894	1309	4	negligible	negligible	JJ
37894	1309	5	2	2	CD
37894	1309	6	.	.	.
37894	1310	1	Ottumwa	ottumwa	NN
37894	1310	2	:	:	:
37894	1310	3	4,600	4,600	CD
37894	1310	4	(	(	-LRB-
37894	1310	5	1,500	1,500	CD
37894	1310	6	)	)	-RRB-
37894	1310	7	3	3	CD
37894	1310	8	.	.	.
37894	1311	1	Columbia	Columbia	NNP
37894	1311	2	:	:	:
37894	1311	3	1,400	1,400	CD
37894	1311	4	(	(	-LRB-
37894	1311	5	400	400	CD
37894	1311	6	)	)	-RRB-
37894	1311	7	5	5	CD
37894	1311	8	.	.	.
37894	1312	1	Louisville	Louisville	NNP
37894	1312	2	:	:	:
37894	1312	3	1,700	1,700	CD
37894	1312	4	(	(	-LRB-
37894	1312	5	200	200	CD
37894	1312	6	)	)	-RRB-
37894	1312	7	10	10	CD
37894	1312	8	.	.	.
37894	1313	1	Memphis	Memphis	NNP
37894	1313	2	:	:	:
37894	1313	3	6,600	6,600	CD
37894	1313	4	(	(	-LRB-
37894	1313	5	900	900	CD
37894	1313	6	)	)	-RRB-
37894	1313	7	12	12	CD
37894	1313	8	.	.	.
37894	1314	1	Rosedale	Rosedale	NNP
37894	1314	2	:	:	:
37894	1314	3	1,100	1,100	CD
37894	1314	4	(	(	-LRB-
37894	1314	5	100	100	CD
37894	1314	6	)	)	-RRB-
37894	1314	7	14	14	CD
37894	1314	8	.	.	.
37894	1315	1	Mansfield	Mansfield	NNP
37894	1315	2	:	:	:
37894	1315	3	1,700	1,700	CD
37894	1315	4	(	(	-LRB-
37894	1315	5	400	400	CD
37894	1315	6	)	)	-RRB-
37894	1315	7	18	18	CD
37894	1315	8	.	.	.
37894	1316	1	Pensacola	pensacola	NN
37894	1316	2	:	:	:
37894	1316	3	migration	migration	NN
37894	1316	4	negligible	negligible	JJ
37894	1316	5	21	21	CD
37894	1316	6	.	.	.
37894	1317	1	Winter	Winter	NNP
37894	1317	2	Park	Park	NNP
37894	1317	3	:	:	:
37894	1317	4	600	600	CD
37894	1317	5	(	(	-LRB-
37894	1317	6	100	100	CD
37894	1317	7	)	)	-RRB-
37894	1317	8	24	24	CD
37894	1317	9	.	.	.
37894	1318	1	Progreso	progreso	NN
37894	1318	2	:	:	:
37894	1318	3	27,300	27,300	CD
37894	1318	4	(	(	-LRB-
37894	1318	5	3,000	3,000	CD
37894	1318	6	)	)	-RRB-
37894	1318	7	]	]	-RRB-
37894	1318	8	[	[	-LRB-
37894	1318	9	Illustration	illustration	NN
37894	1318	10	:	:	:
37894	1318	11	FIG	FIG	NNP
37894	1318	12	.	.	.
37894	1319	1	45	45	CD
37894	1319	2	.	.	.
37894	1320	1	Winds	wind	NNS
37894	1320	2	aloft	aloft	RB
37894	1320	3	at	at	IN
37894	1320	4	10:00	10:00	CD
37894	1320	5	P.	P.	NNP
37894	1320	6	M.	M.	NNP
37894	1320	7	on	on	IN
37894	1320	8	April	April	NNP
37894	1320	9	24	24	CD
37894	1320	10	(	(	-LRB-
37894	1320	11	CST	CST	NNP
37894	1320	12	)	)	-RRB-
37894	1320	13	.	.	.
37894	1321	1	Winds	wind	NNS
37894	1321	2	at	at	IN
37894	1321	3	2,000	2,000	CD
37894	1321	4	feet	foot	NNS
37894	1321	5	above	above	IN
37894	1321	6	mean	mean	VBP
37894	1321	7	sea	sea	NN
37894	1321	8	level	level	NN
37894	1321	9	are	be	VBP
37894	1321	10	shown	show	VBN
37894	1321	11	in	in	IN
37894	1321	12	black	black	JJ
37894	1321	13	;	;	:
37894	1321	14	those	those	DT
37894	1321	15	at	at	IN
37894	1321	16	4,000	4,000	CD
37894	1321	17	feet	foot	NNS
37894	1321	18	,	,	,
37894	1321	19	in	in	IN
37894	1321	20	white	white	JJ
37894	1321	21	.	.	.
37894	1322	1	Velocities	velocity	NNS
37894	1322	2	are	be	VBP
37894	1322	3	indicated	indicate	VBN
37894	1322	4	by	by	IN
37894	1322	5	standard	standard	JJ
37894	1322	6	Beaufort	Beaufort	NNP
37894	1322	7	Scale	Scale	NNP
37894	1322	8	of	of	IN
37894	1322	9	Wind	Wind	NNP
37894	1322	10	Force	Force	NNP
37894	1322	11	.	.	.
37894	1323	1	The	the	DT
37894	1323	2	numbers	number	NNS
37894	1323	3	in	in	IN
37894	1323	4	circles	circle	NNS
37894	1323	5	refer	refer	VBP
37894	1323	6	to	to	IN
37894	1323	7	the	the	DT
37894	1323	8	stations	station	NNS
37894	1323	9	shown	show	VBN
37894	1323	10	in	in	IN
37894	1323	11	Figure	Figure	NNP
37894	1323	12	44	44	CD
37894	1323	13	.	.	.
37894	1323	14	]	]	-RRB-
37894	1324	1	Correction	correction	NN
37894	1324	2	:	:	:
37894	1324	3	Figures	figure	NNS
37894	1324	4	41	41	CD
37894	1324	5	and	and	CC
37894	1324	6	45	45	CD
37894	1324	7	were	be	VBD
37894	1324	8	inadvertently	inadvertently	RB
37894	1324	9	transposed	transpose	VBN
37894	1324	10	.	.	.
37894	1325	1	[	[	-LRB-
37894	1325	2	Illustration	illustration	NN
37894	1325	3	:	:	:
37894	1325	4	FIG	FIG	NNP
37894	1325	5	.	.	.
37894	1326	1	46	46	CD
37894	1326	2	.	.	.
37894	1327	1	Comparison	comparison	NN
37894	1327	2	of	of	IN
37894	1327	3	flight	flight	NN
37894	1327	4	trends	trend	NNS
37894	1327	5	and	and	CC
37894	1327	6	surface	surface	NN
37894	1327	7	weather	weather	NN
37894	1327	8	conditions	condition	NNS
37894	1327	9	on	on	IN
37894	1327	10	May	May	NNP
37894	1327	11	21	21	CD
37894	1327	12	-	-	SYM
37894	1327	13	22	22	CD
37894	1327	14	,	,	,
37894	1327	15	1948	1948	CD
37894	1327	16	.	.	.
37894	1328	1	The	the	DT
37894	1328	2	meteorological	meteorological	JJ
37894	1328	3	data	datum	NNS
37894	1328	4	were	be	VBD
37894	1328	5	taken	take	VBN
37894	1328	6	from	from	IN
37894	1328	7	the	the	DT
37894	1328	8	U.	U.	NNP
37894	1328	9	S.	S.	NNP
37894	1328	10	Weather	Weather	NNP
37894	1328	11	Bureau	Bureau	NNP
37894	1328	12	Daily	Daily	NNP
37894	1328	13	Weather	Weather	NNP
37894	1328	14	Map	Map	NNP
37894	1328	15	for	for	IN
37894	1328	16	12:30	12:30	CD
37894	1328	17	A.	a.	NN
37894	1328	18	M.	M.	NNP
37894	1328	19	(	(	-LRB-
37894	1328	20	CST	CST	NNP
37894	1328	21	)	)	-RRB-
37894	1328	22	on	on	IN
37894	1328	23	May	May	NNP
37894	1328	24	22	22	CD
37894	1328	25	.	.	.
37894	1329	1	The	the	DT
37894	1329	2	nightly	nightly	JJ
37894	1329	3	station	station	NN
37894	1329	4	densities	density	NNS
37894	1329	5	and	and	CC
37894	1329	6	the	the	DT
37894	1329	7	average	average	JJ
37894	1329	8	hourly	hourly	JJ
37894	1329	9	station	station	NN
37894	1329	10	density	density	NN
37894	1329	11	(	(	-LRB-
37894	1329	12	shown	show	VBN
37894	1329	13	in	in	IN
37894	1329	14	parentheses	parenthesis	NNS
37894	1329	15	)	)	-RRB-
37894	1329	16	are	be	VBP
37894	1329	17	as	as	IN
37894	1329	18	follows	follow	VBZ
37894	1329	19	:	:	:
37894	1329	20	2	2	CD
37894	1329	21	.	.	.
37894	1330	1	Ottumwa	ottumwa	NN
37894	1330	2	:	:	:
37894	1330	3	6,900	6,900	CD
37894	1330	4	(	(	-LRB-
37894	1330	5	1,400	1,400	CD
37894	1330	6	)	)	-RRB-
37894	1330	7	5	5	CD
37894	1330	8	.	.	.
37894	1331	1	Louisville	Louisville	NNP
37894	1331	2	:	:	:
37894	1331	3	1,500	1,500	CD
37894	1331	4	(	(	-LRB-
37894	1331	5	200	200	CD
37894	1331	6	)	)	-RRB-
37894	1331	7	9	9	CD
37894	1331	8	.	.	.
37894	1332	1	Knoxville	Knoxville	NNP
37894	1332	2	:	:	:
37894	1332	3	3,200	3,200	CD
37894	1332	4	(	(	-LRB-
37894	1332	5	500	500	CD
37894	1332	6	)	)	-RRB-
37894	1332	7	10	10	CD
37894	1332	8	.	.	.
37894	1333	1	Memphis	Memphis	NNP
37894	1333	2	:	:	:
37894	1333	3	7,000	7,000	CD
37894	1333	4	(	(	-LRB-
37894	1333	5	1,200	1,200	CD
37894	1333	6	)	)	-RRB-
37894	1333	7	13	13	CD
37894	1333	8	.	.	.
37894	1334	1	Oak	Oak	NNP
37894	1334	2	Grove	Grove	NNP
37894	1334	3	:	:	:
37894	1334	4	5,800	5,800	CD
37894	1334	5	(	(	-LRB-
37894	1334	6	800	800	CD
37894	1334	7	)	)	-RRB-
37894	1334	8	14	14	CD
37894	1334	9	.	.	.
37894	1335	1	Mansfield	Mansfield	NNP
37894	1335	2	:	:	:
37894	1335	3	2,500	2,500	CD
37894	1335	4	(	(	-LRB-
37894	1335	5	800	800	CD
37894	1335	6	)	)	-RRB-
37894	1335	7	18	18	CD
37894	1335	8	.	.	.
37894	1336	1	Pensacola	pensacola	NN
37894	1336	2	:	:	:
37894	1336	3	migration	migration	NN
37894	1336	4	negligible	negligible	JJ
37894	1336	5	21	21	CD
37894	1336	6	.	.	.
37894	1337	1	Winter	Winter	NNP
37894	1337	2	Park	Park	NNP
37894	1337	3	:	:	:
37894	1337	4	1,200	1,200	CD
37894	1337	5	(	(	-LRB-
37894	1337	6	200	200	CD
37894	1337	7	)	)	-RRB-
37894	1337	8	]	]	-RRB-
37894	1337	9	[	[	-LRB-
37894	1337	10	Illustration	illustration	NN
37894	1337	11	:	:	:
37894	1337	12	FIG	FIG	NNP
37894	1337	13	.	.	.
37894	1338	1	47	47	CD
37894	1338	2	.	.	.
37894	1339	1	Winds	wind	NNS
37894	1339	2	aloft	aloft	RB
37894	1339	3	at	at	IN
37894	1339	4	10:00	10:00	CD
37894	1339	5	P.	P.	NNP
37894	1339	6	M.	M.	NNP
37894	1339	7	on	on	IN
37894	1339	8	May	May	NNP
37894	1339	9	21	21	CD
37894	1339	10	(	(	-LRB-
37894	1339	11	CST	cst	NN
37894	1339	12	)	)	-RRB-
37894	1339	13	.	.	.
37894	1340	1	Winds	wind	NNS
37894	1340	2	at	at	IN
37894	1340	3	2,000	2,000	CD
37894	1340	4	feet	foot	NNS
37894	1340	5	above	above	IN
37894	1340	6	mean	mean	VBP
37894	1340	7	sea	sea	NN
37894	1340	8	level	level	NN
37894	1340	9	are	be	VBP
37894	1340	10	shown	show	VBN
37894	1340	11	.	.	.
37894	1341	1	Velocities	velocity	NNS
37894	1341	2	are	be	VBP
37894	1341	3	indicated	indicate	VBN
37894	1341	4	by	by	IN
37894	1341	5	standard	standard	JJ
37894	1341	6	Beaufort	Beaufort	NNP
37894	1341	7	Scale	Scale	NNP
37894	1341	8	of	of	IN
37894	1341	9	Wind	Wind	NNP
37894	1341	10	Force	Force	NNP
37894	1341	11	.	.	.
37894	1342	1	The	the	DT
37894	1342	2	numbers	number	NNS
37894	1342	3	in	in	IN
37894	1342	4	circles	circle	NNS
37894	1342	5	refer	refer	VBP
37894	1342	6	to	to	IN
37894	1342	7	the	the	DT
37894	1342	8	stations	station	NNS
37894	1342	9	shown	show	VBN
37894	1342	10	in	in	IN
37894	1342	11	Figure	Figure	NNP
37894	1342	12	46	46	CD
37894	1342	13	.	.	.
37894	1342	14	]	]	-RRB-
37894	1343	1	On	on	IN
37894	1343	2	the	the	DT
37894	1343	3	first	first	JJ
37894	1343	4	night	night	NN
37894	1343	5	,	,	,
37894	1343	6	following	follow	VBG
37894	1343	7	the	the	DT
37894	1343	8	passage	passage	NN
37894	1343	9	of	of	IN
37894	1343	10	a	a	DT
37894	1343	11	cold	cold	JJ
37894	1343	12	front	front	NN
37894	1343	13	,	,	,
37894	1343	14	migration	migration	NN
37894	1343	15	at	at	IN
37894	1343	16	Ottumwa	Ottumwa	NNP
37894	1343	17	was	be	VBD
37894	1343	18	comparatively	comparatively	RB
37894	1343	19	low	low	JJ
37894	1343	20	(	(	-LRB-
37894	1343	21	6,900	6,900	CD
37894	1343	22	birds	bird	NNS
37894	1343	23	in	in	IN
37894	1343	24	five	five	CD
37894	1343	25	hours	hour	NNS
37894	1343	26	)	)	-RRB-
37894	1343	27	.	.	.
37894	1344	1	On	on	IN
37894	1344	2	the	the	DT
37894	1344	3	following	follow	VBG
37894	1344	4	night	night	NN
37894	1344	5	,	,	,
37894	1344	6	when	when	WRB
37894	1344	7	the	the	DT
37894	1344	8	trajectory	trajectory	NN
37894	1344	9	of	of	IN
37894	1344	10	the	the	DT
37894	1344	11	winds	wind	NNS
37894	1344	12	was	be	VBD
37894	1344	13	toward	toward	IN
37894	1344	14	the	the	DT
37894	1344	15	north	north	NN
37894	1344	16	,	,	,
37894	1344	17	the	the	DT
37894	1344	18	volume	volume	NN
37894	1344	19	of	of	IN
37894	1344	20	migration	migration	NN
37894	1344	21	was	be	VBD
37894	1344	22	roughly	roughly	RB
37894	1344	23	twice	twice	RB
37894	1344	24	as	as	RB
37894	1344	25	high	high	JJ
37894	1344	26	(	(	-LRB-
37894	1344	27	22,300	22,300	CD
37894	1344	28	birds	bird	NNS
37894	1344	29	in	in	IN
37894	1344	30	eight	eight	CD
37894	1344	31	hours	hour	NNS
37894	1344	32	)	)	-RRB-
37894	1344	33	.	.	.
37894	1345	1	At	at	IN
37894	1345	2	Louisville	Louisville	NNP
37894	1345	3	,	,	,
37894	1345	4	on	on	IN
37894	1345	5	May	May	NNP
37894	1345	6	21	21	CD
37894	1345	7	-	-	SYM
37894	1345	8	22	22	CD
37894	1345	9	,	,	,
37894	1345	10	the	the	DT
37894	1345	11	nightly	nightly	JJ
37894	1345	12	station	station	NN
37894	1345	13	density	density	NN
37894	1345	14	was	be	VBD
37894	1345	15	only	only	RB
37894	1345	16	1,500	1,500	CD
37894	1345	17	birds	bird	NNS
37894	1345	18	in	in	IN
37894	1345	19	seven	seven	CD
37894	1345	20	hours	hour	NNS
37894	1345	21	,	,	,
37894	1345	22	whereas	whereas	IN
37894	1345	23	on	on	IN
37894	1345	24	the	the	DT
37894	1345	25	following	follow	VBG
37894	1345	26	night	night	NN
37894	1345	27	,	,	,
37894	1345	28	it	-PRON-	PRP
37894	1345	29	was	be	VBD
37894	1345	30	8,400	8,400	CD
37894	1345	31	birds	bird	NNS
37894	1345	32	in	in	IN
37894	1345	33	the	the	DT
37894	1345	34	same	same	JJ
37894	1345	35	length	length	NN
37894	1345	36	of	of	IN
37894	1345	37	time	time	NN
37894	1345	38	,	,	,
37894	1345	39	or	or	CC
37894	1345	40	about	about	RB
37894	1345	41	six	six	CD
37894	1345	42	times	time	NNS
37894	1345	43	greater	great	JJR
37894	1345	44	.	.	.
37894	1346	1	The	the	DT
37894	1346	2	evidence	evidence	NN
37894	1346	3	adduced	adduce	VBD
37894	1346	4	from	from	IN
37894	1346	5	the	the	DT
37894	1346	6	present	present	JJ
37894	1346	7	study	study	NN
37894	1346	8	gives	give	VBZ
37894	1346	9	support	support	NN
37894	1346	10	to	to	IN
37894	1346	11	the	the	DT
37894	1346	12	hypothesis	hypothesis	NN
37894	1346	13	that	that	IN
37894	1346	14	the	the	DT
37894	1346	15	continental	continental	JJ
37894	1346	16	pattern	pattern	NN
37894	1346	17	of	of	IN
37894	1346	18	spring	spring	NN
37894	1346	19	migration	migration	NN
37894	1346	20	in	in	IN
37894	1346	21	eastern	eastern	JJ
37894	1346	22	North	North	NNP
37894	1346	23	America	America	NNP
37894	1346	24	is	be	VBZ
37894	1346	25	regulated	regulate	VBN
37894	1346	26	by	by	IN
37894	1346	27	the	the	DT
37894	1346	28	movement	movement	NN
37894	1346	29	of	of	IN
37894	1346	30	air	air	NN
37894	1346	31	masses	masse	NNS
37894	1346	32	.	.	.
37894	1347	1	The	the	DT
37894	1347	2	clockwise	clockwise	JJ
37894	1347	3	circulation	circulation	NN
37894	1347	4	of	of	IN
37894	1347	5	warm	warm	JJ
37894	1347	6	air	air	NN
37894	1347	7	around	around	IN
37894	1347	8	an	an	DT
37894	1347	9	area	area	NN
37894	1347	10	of	of	IN
37894	1347	11	high	high	JJ
37894	1347	12	pressure	pressure	NN
37894	1347	13	provides	provide	VBZ
37894	1347	14	,	,	,
37894	1347	15	on	on	IN
37894	1347	16	its	-PRON-	PRP$
37894	1347	17	western	western	JJ
37894	1347	18	edge	edge	NN
37894	1347	19	,	,	,
37894	1347	20	tail	tail	NN
37894	1347	21	winds	wind	NNS
37894	1347	22	which	which	WDT
37894	1347	23	are	be	VBP
37894	1347	24	apparently	apparently	RB
37894	1347	25	favorable	favorable	JJ
37894	1347	26	to	to	IN
37894	1347	27	northward	northward	VB
37894	1347	28	migration	migration	NN
37894	1347	29	.	.	.
37894	1348	1	High	high	JJ
37894	1348	2	pressure	pressure	NN
37894	1348	3	areas	area	NNS
37894	1348	4	exhibit	exhibit	VBP
37894	1348	5	a	a	DT
37894	1348	6	centrifugal	centrifugal	JJ
37894	1348	7	force	force	NN
37894	1348	8	outward	outward	RB
37894	1348	9	from	from	IN
37894	1348	10	the	the	DT
37894	1348	11	center	center	NN
37894	1348	12	,	,	,
37894	1348	13	which	which	WDT
37894	1348	14	may	may	MD
37894	1348	15	tend	tend	VB
37894	1348	16	to	to	TO
37894	1348	17	disperse	disperse	VB
37894	1348	18	the	the	DT
37894	1348	19	migratory	migratory	NN
37894	1348	20	flight	flight	NN
37894	1348	21	originating	originate	VBG
37894	1348	22	at	at	IN
37894	1348	23	any	any	DT
37894	1348	24	given	give	VBN
37894	1348	25	point	point	NN
37894	1348	26	.	.	.
37894	1349	1	In	in	IN
37894	1349	2	contrast	contrast	NN
37894	1349	3	,	,	,
37894	1349	4	the	the	DT
37894	1349	5	circulation	circulation	NN
37894	1349	6	of	of	IN
37894	1349	7	air	air	NN
37894	1349	8	in	in	IN
37894	1349	9	the	the	DT
37894	1349	10	vicinity	vicinity	NN
37894	1349	11	of	of	IN
37894	1349	12	a	a	DT
37894	1349	13	low	low	JJ
37894	1349	14	pressure	pressure	NN
37894	1349	15	area	area	NN
37894	1349	16	is	be	VBZ
37894	1349	17	counterclockwise	counterclockwise	JJ
37894	1349	18	with	with	IN
37894	1349	19	the	the	DT
37894	1349	20	force	force	NN
37894	1349	21	tending	tend	VBG
37894	1349	22	to	to	TO
37894	1349	23	be	be	VB
37894	1349	24	directed	direct	VBN
37894	1349	25	inward	inward	RB
37894	1349	26	toward	toward	IN
37894	1349	27	the	the	DT
37894	1349	28	center	center	NN
37894	1349	29	.	.	.
37894	1350	1	Since	since	IN
37894	1350	2	the	the	DT
37894	1350	3	general	general	JJ
37894	1350	4	movement	movement	NN
37894	1350	5	of	of	IN
37894	1350	6	the	the	DT
37894	1350	7	air	air	NN
37894	1350	8	is	be	VBZ
37894	1350	9	from	from	IN
37894	1350	10	the	the	DT
37894	1350	11	high	high	JJ
37894	1350	12	pressure	pressure	NN
37894	1350	13	area	area	NN
37894	1350	14	toward	toward	IN
37894	1350	15	a	a	DT
37894	1350	16	low	low	JJ
37894	1350	17	pressure	pressure	NN
37894	1350	18	area	area	NN
37894	1350	19	,	,	,
37894	1350	20	birds	bird	NNS
37894	1350	21	starting	start	VBG
37894	1350	22	their	-PRON-	PRP$
37894	1350	23	migrations	migration	NNS
37894	1350	24	with	with	IN
37894	1350	25	favorable	favorable	JJ
37894	1350	26	tail	tail	NN
37894	1350	27	winds	wind	NNS
37894	1350	28	,	,	,
37894	1350	29	are	be	VBP
37894	1350	30	often	often	RB
37894	1350	31	ultimately	ultimately	RB
37894	1350	32	carried	carry	VBN
37894	1350	33	to	to	IN
37894	1350	34	a	a	DT
37894	1350	35	region	region	NN
37894	1350	36	where	where	WRB
37894	1350	37	conditions	condition	NNS
37894	1350	38	are	be	VBP
37894	1350	39	decidedly	decidedly	RB
37894	1350	40	less	less	RBR
37894	1350	41	favorable	favorable	JJ
37894	1350	42	.	.	.
37894	1351	1	In	in	IN
37894	1351	2	the	the	DT
37894	1351	3	vicinity	vicinity	NN
37894	1351	4	of	of	IN
37894	1351	5	an	an	DT
37894	1351	6	area	area	NN
37894	1351	7	of	of	IN
37894	1351	8	low	low	JJ
37894	1351	9	pressure	pressure	NN
37894	1351	10	the	the	DT
37894	1351	11	greater	great	JJR
37894	1351	12	turbulence	turbulence	NN
37894	1351	13	and	and	CC
37894	1351	14	high	high	JJ
37894	1351	15	wind	wind	NN
37894	1351	16	velocities	velocity	NNS
37894	1351	17	,	,	,
37894	1351	18	combined	combine	VBN
37894	1351	19	with	with	IN
37894	1351	20	the	the	DT
37894	1351	21	possibly	possibly	RB
37894	1351	22	slightly	slightly	RB
37894	1351	23	less	less	RBR
37894	1351	24	buoyant	buoyant	JJ
37894	1351	25	property	property	NN
37894	1351	26	of	of	IN
37894	1351	27	the	the	DT
37894	1351	28	air	air	NN
37894	1351	29	,	,	,
37894	1351	30	cause	cause	VB
37894	1351	31	birds	bird	NNS
37894	1351	32	to	to	TO
37894	1351	33	descend	descend	VB
37894	1351	34	.	.	.
37894	1352	1	Since	since	IN
37894	1352	2	low	low	JJ
37894	1352	3	pressure	pressure	NN
37894	1352	4	areas	area	NNS
37894	1352	5	in	in	IN
37894	1352	6	spring	spring	NN
37894	1352	7	generally	generally	RB
37894	1352	8	precede	precede	VBP
37894	1352	9	cold	cold	JJ
37894	1352	10	fronts	front	NNS
37894	1352	11	,	,	,
37894	1352	12	with	with	IN
37894	1352	13	an	an	DT
37894	1352	14	attending	attend	VBG
37894	1352	15	shift	shift	NN
37894	1352	16	of	of	IN
37894	1352	17	the	the	DT
37894	1352	18	wind	wind	NN
37894	1352	19	to	to	IN
37894	1352	20	the	the	DT
37894	1352	21	north	north	NN
37894	1352	22	,	,	,
37894	1352	23	an	an	DT
37894	1352	24	additional	additional	JJ
37894	1352	25	barrier	barrier	NN
37894	1352	26	to	to	IN
37894	1352	27	the	the	DT
37894	1352	28	northward	northward	NN
37894	1352	29	migration	migration	NN
37894	1352	30	of	of	IN
37894	1352	31	birds	bird	NNS
37894	1352	32	is	be	VBZ
37894	1352	33	imposed	impose	VBN
37894	1352	34	.	.	.
37894	1353	1	The	the	DT
37894	1353	2	extreme	extreme	JJ
37894	1353	3	manifestation	manifestation	NN
37894	1353	4	of	of	IN
37894	1353	5	low	low	JJ
37894	1353	6	pressure	pressure	NN
37894	1353	7	conditions	condition	NNS
37894	1353	8	and	and	CC
37894	1353	9	the	the	DT
37894	1353	10	manner	manner	NN
37894	1353	11	in	in	IN
37894	1353	12	which	which	WDT
37894	1353	13	they	-PRON-	PRP
37894	1353	14	operate	operate	VBP
37894	1353	15	against	against	IN
37894	1353	16	bird	bird	NN
37894	1353	17	flight	flight	NN
37894	1353	18	,	,	,
37894	1353	19	are	be	VBP
37894	1353	20	associated	associate	VBN
37894	1353	21	with	with	IN
37894	1353	22	tropical	tropical	JJ
37894	1353	23	hurricanes	hurricane	NNS
37894	1353	24	.	.	.
37894	1354	1	There	there	RB
37894	1354	2	,	,	,
37894	1354	3	the	the	DT
37894	1354	4	centripetal	centripetal	JJ
37894	1354	5	force	force	NN
37894	1354	6	of	of	IN
37894	1354	7	the	the	DT
37894	1354	8	wind	wind	NN
37894	1354	9	is	be	VBZ
37894	1354	10	so	so	RB
37894	1354	11	great	great	JJ
37894	1354	12	that	that	IN
37894	1354	13	it	-PRON-	PRP
37894	1354	14	appears	appear	VBZ
37894	1354	15	to	to	TO
37894	1354	16	draw	draw	VB
37894	1354	17	birds	bird	NNS
37894	1354	18	into	into	IN
37894	1354	19	the	the	DT
37894	1354	20	"	"	``
37894	1354	21	eye	eye	NN
37894	1354	22	"	"	''
37894	1354	23	of	of	IN
37894	1354	24	the	the	DT
37894	1354	25	hurricane	hurricane	NN
37894	1354	26	.	.	.
37894	1355	1	A	a	DT
37894	1355	2	classic	classic	JJ
37894	1355	3	example	example	NN
37894	1355	4	of	of	IN
37894	1355	5	this	this	DT
37894	1355	6	effect	effect	NN
37894	1355	7	is	be	VBZ
37894	1355	8	seen	see	VBN
37894	1355	9	in	in	IN
37894	1355	10	the	the	DT
37894	1355	11	case	case	NN
37894	1355	12	of	of	IN
37894	1355	13	the	the	DT
37894	1355	14	birds	bird	NNS
37894	1355	15	that	that	WDT
37894	1355	16	came	come	VBD
37894	1355	17	aboard	aboard	IN
37894	1355	18	the	the	DT
37894	1355	19	"	"	``
37894	1355	20	West	West	NNP
37894	1355	21	Quechee	Quechee	NNP
37894	1355	22	"	"	''
37894	1355	23	when	when	WRB
37894	1355	24	this	this	DT
37894	1355	25	vessel	vessel	NN
37894	1355	26	passed	pass	VBD
37894	1355	27	through	through	IN
37894	1355	28	the	the	DT
37894	1355	29	"	"	``
37894	1355	30	eye	eye	NN
37894	1355	31	"	"	''
37894	1355	32	of	of	IN
37894	1355	33	a	a	DT
37894	1355	34	hurricane	hurricane	NN
37894	1355	35	in	in	IN
37894	1355	36	the	the	DT
37894	1355	37	Gulf	Gulf	NNP
37894	1355	38	of	of	IN
37894	1355	39	Mexico	Mexico	NNP
37894	1355	40	in	in	IN
37894	1355	41	August	August	NNP
37894	1355	42	,	,	,
37894	1355	43	1927	1927	CD
37894	1355	44	.	.	.
37894	1356	1	I	-PRON-	PRP
37894	1356	2	have	have	VBP
37894	1356	3	already	already	RB
37894	1356	4	discussed	discuss	VBN
37894	1356	5	the	the	DT
37894	1356	6	details	detail	NNS
37894	1356	7	of	of	IN
37894	1356	8	this	this	DT
37894	1356	9	incident	incident	NN
37894	1356	10	in	in	IN
37894	1356	11	a	a	DT
37894	1356	12	previous	previous	JJ
37894	1356	13	paper	paper	NN
37894	1356	14	(	(	-LRB-
37894	1356	15	1946:192	1946:192	CD
37894	1356	16	)	)	-RRB-
37894	1356	17	.	.	.
37894	1357	1	There	there	EX
37894	1357	2	is	be	VBZ
37894	1357	3	also	also	RB
37894	1357	4	the	the	DT
37894	1357	5	interesting	interesting	JJ
37894	1357	6	observation	observation	NN
37894	1357	7	of	of	IN
37894	1357	8	Mayhew	Mayhew	NNP
37894	1357	9	(	(	-LRB-
37894	1357	10	1949	1949	CD
37894	1357	11	)	)	-RRB-
37894	1357	12	,	,	,
37894	1357	13	in	in	IN
37894	1357	14	which	which	WDT
37894	1357	15	a	a	DT
37894	1357	16	similar	similar	JJ
37894	1357	17	observation	observation	NN
37894	1357	18	was	be	VBD
37894	1357	19	made	make	VBN
37894	1357	20	of	of	IN
37894	1357	21	large	large	JJ
37894	1357	22	numbers	number	NNS
37894	1357	23	of	of	IN
37894	1357	24	birds	bird	NNS
37894	1357	25	aboard	aboard	IN
37894	1357	26	a	a	DT
37894	1357	27	ship	ship	NN
37894	1357	28	passing	pass	VBG
37894	1357	29	through	through	IN
37894	1357	30	one	one	CD
37894	1357	31	of	of	IN
37894	1357	32	these	these	DT
37894	1357	33	intense	intense	JJ
37894	1357	34	low	low	JJ
37894	1357	35	-	-	HYPH
37894	1357	36	pressure	pressure	NN
37894	1357	37	areas	area	NNS
37894	1357	38	.	.	.
37894	1358	1	Although	although	IN
37894	1358	2	the	the	DT
37894	1358	3	forces	force	NNS
37894	1358	4	associated	associate	VBN
37894	1358	5	with	with	IN
37894	1358	6	an	an	DT
37894	1358	7	ordinary	ordinary	JJ
37894	1358	8	low	low	JJ
37894	1358	9	-	-	HYPH
37894	1358	10	pressure	pressure	NN
37894	1358	11	area	area	NN
37894	1358	12	are	be	VBP
37894	1358	13	by	by	IN
37894	1358	14	no	no	DT
37894	1358	15	means	mean	NNS
37894	1358	16	as	as	RB
37894	1358	17	intense	intense	JJ
37894	1358	18	as	as	IN
37894	1358	19	those	those	DT
37894	1358	20	associated	associate	VBN
37894	1358	21	with	with	IN
37894	1358	22	a	a	DT
37894	1358	23	tropical	tropical	JJ
37894	1358	24	hurricane	hurricane	NN
37894	1358	25	,	,	,
37894	1358	26	the	the	DT
37894	1358	27	forces	force	NNS
37894	1358	28	operating	operate	VBG
37894	1358	29	are	be	VBP
37894	1358	30	much	much	RB
37894	1358	31	the	the	DT
37894	1358	32	same	same	JJ
37894	1358	33	.	.	.
37894	1359	1	Consequently	consequently	RB
37894	1359	2	birds	bird	NNS
37894	1359	3	conceivably	conceivably	RB
37894	1359	4	might	may	MD
37894	1359	5	tend	tend	VB
37894	1359	6	to	to	TO
37894	1359	7	be	be	VB
37894	1359	8	drawn	draw	VBN
37894	1359	9	toward	toward	IN
37894	1359	10	a	a	DT
37894	1359	11	focal	focal	JJ
37894	1359	12	point	point	NN
37894	1359	13	near	near	IN
37894	1359	14	the	the	DT
37894	1359	15	center	center	NN
37894	1359	16	of	of	IN
37894	1359	17	the	the	DT
37894	1359	18	low	low	NN
37894	1359	19	,	,	,
37894	1359	20	where	where	WRB
37894	1359	21	the	the	DT
37894	1359	22	other	other	JJ
37894	1359	23	factors	factor	NNS
37894	1359	24	already	already	RB
37894	1359	25	mentioned	mention	VBN
37894	1359	26	would	would	MD
37894	1359	27	tend	tend	VB
37894	1359	28	to	to	TO
37894	1359	29	precipitate	precipitate	VB
37894	1359	30	the	the	DT
37894	1359	31	entire	entire	JJ
37894	1359	32	overhead	overhead	JJ
37894	1359	33	flight	flight	NN
37894	1359	34	.	.	.
37894	1360	1	Visible	visible	JJ
37894	1360	2	evidence	evidence	NN
37894	1360	3	of	of	IN
37894	1360	4	migration	migration	NN
37894	1360	5	would	would	MD
37894	1360	6	then	then	RB
37894	1360	7	manifest	manifest	VB
37894	1360	8	itself	-PRON-	PRP
37894	1360	9	to	to	IN
37894	1360	10	the	the	DT
37894	1360	11	field	field	NN
37894	1360	12	ornithologists	ornithologist	NNS
37894	1360	13	.	.	.
37894	1361	1	CONCLUSIONS	conclusion	NNS
37894	1361	2	1	1	CD
37894	1361	3	.	.	.
37894	1362	1	Telescopic	telescopic	JJ
37894	1362	2	counts	count	NNS
37894	1362	3	of	of	IN
37894	1362	4	birds	bird	NNS
37894	1362	5	passing	pass	VBG
37894	1362	6	before	before	IN
37894	1362	7	the	the	DT
37894	1362	8	moon	moon	NN
37894	1362	9	may	may	MD
37894	1362	10	be	be	VB
37894	1362	11	used	use	VBN
37894	1362	12	to	to	TO
37894	1362	13	determine	determine	VB
37894	1362	14	reliable	reliable	JJ
37894	1362	15	statistical	statistical	JJ
37894	1362	16	expressions	expression	NNS
37894	1362	17	of	of	IN
37894	1362	18	the	the	DT
37894	1362	19	volume	volume	NN
37894	1362	20	of	of	IN
37894	1362	21	migration	migration	NN
37894	1362	22	in	in	IN
37894	1362	23	terms	term	NNS
37894	1362	24	of	of	IN
37894	1362	25	direction	direction	NN
37894	1362	26	and	and	CC
37894	1362	27	of	of	IN
37894	1362	28	definite	definite	JJ
37894	1362	29	units	unit	NNS
37894	1362	30	of	of	IN
37894	1362	31	time	time	NN
37894	1362	32	and	and	CC
37894	1362	33	space	space	NN
37894	1362	34	.	.	.
37894	1363	1	2	2	LS
37894	1363	2	.	.	.
37894	1364	1	Night	night	NN
37894	1364	2	migrants	migrant	NNS
37894	1364	3	fly	fly	VBP
37894	1364	4	singly	singly	RB
37894	1364	5	more	more	RBR
37894	1364	6	often	often	RB
37894	1364	7	than	than	IN
37894	1364	8	in	in	IN
37894	1364	9	flocks	flock	NNS
37894	1364	10	,	,	,
37894	1364	11	creating	create	VBG
37894	1364	12	a	a	DT
37894	1364	13	remarkably	remarkably	RB
37894	1364	14	uniform	uniform	JJ
37894	1364	15	dispersion	dispersion	NN
37894	1364	16	on	on	IN
37894	1364	17	a	a	DT
37894	1364	18	local	local	JJ
37894	1364	19	scale	scale	NN
37894	1364	20	throughout	throughout	IN
37894	1364	21	the	the	DT
37894	1364	22	sky	sky	NN
37894	1364	23	,	,	,
37894	1364	24	quite	quite	RB
37894	1364	25	unlike	unlike	IN
37894	1364	26	the	the	DT
37894	1364	27	scattered	scatter	VBN
37894	1364	28	distributions	distribution	NNS
37894	1364	29	observable	observable	JJ
37894	1364	30	in	in	IN
37894	1364	31	the	the	DT
37894	1364	32	daytime	daytime	NN
37894	1364	33	.	.	.
37894	1365	1	3	3	LS
37894	1365	2	.	.	.
37894	1366	1	The	the	DT
37894	1366	2	nocturnal	nocturnal	JJ
37894	1366	3	migration	migration	NN
37894	1366	4	of	of	IN
37894	1366	5	birds	bird	NNS
37894	1366	6	is	be	VBZ
37894	1366	7	apparently	apparently	RB
37894	1366	8	preceded	precede	VBN
37894	1366	9	by	by	IN
37894	1366	10	a	a	DT
37894	1366	11	resting	resting	NN
37894	1366	12	or	or	CC
37894	1366	13	feeding	feeding	NN
37894	1366	14	pause	pause	NN
37894	1366	15	during	during	IN
37894	1366	16	which	which	WDT
37894	1366	17	there	there	EX
37894	1366	18	are	be	VBP
37894	1366	19	few	few	JJ
37894	1366	20	migrants	migrant	NNS
37894	1366	21	in	in	IN
37894	1366	22	the	the	DT
37894	1366	23	air	air	NN
37894	1366	24	.	.	.
37894	1367	1	It	-PRON-	PRP
37894	1367	2	is	be	VBZ
37894	1367	3	not	not	RB
37894	1367	4	to	to	IN
37894	1367	5	an	an	DT
37894	1367	6	important	important	JJ
37894	1367	7	degree	degree	NN
37894	1367	8	a	a	DT
37894	1367	9	non	non	JJ
37894	1367	10	-	-	JJ
37894	1367	11	stop	stop	JJ
37894	1367	12	continuation	continuation	NN
37894	1367	13	of	of	IN
37894	1367	14	flights	flight	NNS
37894	1367	15	begun	begin	VBN
37894	1367	16	in	in	IN
37894	1367	17	the	the	DT
37894	1367	18	daylight	daylight	NN
37894	1367	19	.	.	.
37894	1368	1	4	4	LS
37894	1368	2	.	.	.
37894	1369	1	Nightly	nightly	JJ
37894	1369	2	migrational	migrational	JJ
37894	1369	3	activity	activity	NN
37894	1369	4	in	in	IN
37894	1369	5	North	North	NNP
37894	1369	6	America	America	NNP
37894	1369	7	varies	vary	VBZ
37894	1369	8	from	from	IN
37894	1369	9	hour	hour	NN
37894	1369	10	to	to	IN
37894	1369	11	hour	hour	NN
37894	1369	12	according	accord	VBG
37894	1369	13	to	to	IN
37894	1369	14	a	a	DT
37894	1369	15	definite	definite	JJ
37894	1369	16	temporal	temporal	JJ
37894	1369	17	pattern	pattern	NN
37894	1369	18	,	,	,
37894	1369	19	corresponding	correspond	VBG
37894	1369	20	to	to	IN
37894	1369	21	the	the	DT
37894	1369	22	_	_	NNP
37894	1369	23	Zugunruhe	Zugunruhe	NNP
37894	1369	24	_	_	NNP
37894	1369	25	of	of	IN
37894	1369	26	caged	cage	VBN
37894	1369	27	European	european	JJ
37894	1369	28	birds	bird	NNS
37894	1369	29	,	,	,
37894	1369	30	and	and	CC
37894	1369	31	expressed	express	VBN
37894	1369	32	by	by	IN
37894	1369	33	increasingly	increasingly	RB
37894	1369	34	heavy	heavy	JJ
37894	1369	35	flights	flight	NNS
37894	1369	36	up	up	IN
37894	1369	37	until	until	IN
37894	1369	38	the	the	DT
37894	1369	39	hour	hour	NN
37894	1369	40	before	before	IN
37894	1369	41	midnight	midnight	NN
37894	1369	42	,	,	,
37894	1369	43	followed	follow	VBN
37894	1369	44	by	by	IN
37894	1369	45	a	a	DT
37894	1369	46	pronounced	pronounced	JJ
37894	1369	47	decline	decline	NN
37894	1369	48	.	.	.
37894	1370	1	5	5	CD
37894	1370	2	.	.	.
37894	1371	1	The	the	DT
37894	1371	2	visible	visible	JJ
37894	1371	3	effects	effect	NNS
37894	1371	4	of	of	IN
37894	1371	5	the	the	DT
37894	1371	6	time	time	NN
37894	1371	7	pattern	pattern	NN
37894	1371	8	are	be	VBP
37894	1371	9	subject	subject	JJ
37894	1371	10	to	to	IN
37894	1371	11	modification	modification	NN
37894	1371	12	at	at	IN
37894	1371	13	a	a	DT
37894	1371	14	particular	particular	JJ
37894	1371	15	station	station	NN
37894	1371	16	by	by	IN
37894	1371	17	its	-PRON-	PRP$
37894	1371	18	location	location	NN
37894	1371	19	with	with	IN
37894	1371	20	respect	respect	NN
37894	1371	21	to	to	IN
37894	1371	22	the	the	DT
37894	1371	23	resting	rest	VBG
37894	1371	24	areas	area	NNS
37894	1371	25	from	from	IN
37894	1371	26	which	which	WDT
37894	1371	27	the	the	DT
37894	1371	28	night	night	NN
37894	1371	29	's	's	POS
37894	1371	30	flight	flight	NN
37894	1371	31	originates	originate	NNS
37894	1371	32	.	.	.
37894	1372	1	6	6	CD
37894	1372	2	.	.	.
37894	1373	1	Quantitative	quantitative	JJ
37894	1373	2	and	and	CC
37894	1373	3	directional	directional	JJ
37894	1373	4	studies	study	NNS
37894	1373	5	have	have	VBP
37894	1373	6	so	so	RB
37894	1373	7	far	far	RB
37894	1373	8	failed	fail	VBN
37894	1373	9	to	to	TO
37894	1373	10	prove	prove	VB
37894	1373	11	that	that	IN
37894	1373	12	nocturnal	nocturnal	JJ
37894	1373	13	migrants	migrant	NNS
37894	1373	14	favor	favor	VBP
37894	1373	15	narrow	narrow	JJ
37894	1373	16	,	,	,
37894	1373	17	topographically	topographically	RB
37894	1373	18	-	-	HYPH
37894	1373	19	determined	determine	VBN
37894	1373	20	flight	flight	NN
37894	1373	21	lanes	lane	NNS
37894	1373	22	to	to	IN
37894	1373	23	an	an	DT
37894	1373	24	important	important	JJ
37894	1373	25	degree	degree	NN
37894	1373	26	.	.	.
37894	1374	1	7	7	LS
37894	1374	2	.	.	.
37894	1375	1	Flight	flight	NN
37894	1375	2	densities	density	NNS
37894	1375	3	on	on	IN
37894	1375	4	the	the	DT
37894	1375	5	east	east	JJ
37894	1375	6	coast	coast	NN
37894	1375	7	of	of	IN
37894	1375	8	Mexico	Mexico	NNP
37894	1375	9	,	,	,
37894	1375	10	though	though	IN
37894	1375	11	of	of	IN
37894	1375	12	first	first	JJ
37894	1375	13	magnitude	magnitude	NN
37894	1375	14	,	,	,
37894	1375	15	have	have	VBP
37894	1375	16	not	not	RB
37894	1375	17	yet	yet	RB
37894	1375	18	been	be	VBN
37894	1375	19	demonstrated	demonstrate	VBN
37894	1375	20	in	in	IN
37894	1375	21	the	the	DT
37894	1375	22	volume	volume	NN
37894	1375	23	demanded	demand	VBN
37894	1375	24	by	by	IN
37894	1375	25	the	the	DT
37894	1375	26	premise	premise	NN
37894	1375	27	that	that	IN
37894	1375	28	almost	almost	RB
37894	1375	29	all	all	DT
37894	1375	30	migrants	migrant	NNS
37894	1375	31	returning	return	VBG
37894	1375	32	to	to	IN
37894	1375	33	the	the	DT
37894	1375	34	United	United	NNP
37894	1375	35	States	States	NNP
37894	1375	36	from	from	IN
37894	1375	37	regions	region	NNS
37894	1375	38	to	to	IN
37894	1375	39	the	the	DT
37894	1375	40	south	south	NN
37894	1375	41	do	do	VBP
37894	1375	42	so	so	RB
37894	1375	43	by	by	IN
37894	1375	44	coastal	coastal	JJ
37894	1375	45	routes	route	NNS
37894	1375	46	.	.	.
37894	1376	1	8	8	LS
37894	1376	2	.	.	.
37894	1377	1	Heavy	heavy	JJ
37894	1377	2	flights	flight	NNS
37894	1377	3	have	have	VBP
37894	1377	4	been	be	VBN
37894	1377	5	recorded	record	VBN
37894	1377	6	from	from	IN
37894	1377	7	the	the	DT
37894	1377	8	northern	northern	JJ
37894	1377	9	coast	coast	NN
37894	1377	10	of	of	IN
37894	1377	11	Yucatán	Yucatán	NNP
37894	1377	12	under	under	IN
37894	1377	13	circumstances	circumstance	NNS
37894	1377	14	leading	lead	VBG
37894	1377	15	inevitably	inevitably	RB
37894	1377	16	to	to	IN
37894	1377	17	the	the	DT
37894	1377	18	conclusion	conclusion	NN
37894	1377	19	that	that	WDT
37894	1377	20	birds	bird	NNS
37894	1377	21	migrate	migrate	VBP
37894	1377	22	across	across	IN
37894	1377	23	the	the	DT
37894	1377	24	Gulf	Gulf	NNP
37894	1377	25	of	of	IN
37894	1377	26	Mexico	Mexico	NNP
37894	1377	27	in	in	IN
37894	1377	28	considerable	considerable	JJ
37894	1377	29	numbers	number	NNS
37894	1377	30	.	.	.
37894	1378	1	9	9	CD
37894	1378	2	.	.	.
37894	1379	1	There	there	EX
37894	1379	2	is	be	VBZ
37894	1379	3	reason	reason	NN
37894	1379	4	to	to	TO
37894	1379	5	believe	believe	VB
37894	1379	6	that	that	IN
37894	1379	7	the	the	DT
37894	1379	8	importance	importance	NN
37894	1379	9	of	of	IN
37894	1379	10	the	the	DT
37894	1379	11	Florida	Florida	NNP
37894	1379	12	Peninsula	Peninsula	NNP
37894	1379	13	as	as	IN
37894	1379	14	an	an	DT
37894	1379	15	April	April	NNP
37894	1379	16	and	and	CC
37894	1379	17	May	May	NNP
37894	1379	18	flyway	flyway	RB
37894	1379	19	has	have	VBZ
37894	1379	20	been	be	VBN
37894	1379	21	over	over	RB
37894	1379	22	-	-	HYPH
37894	1379	23	estimated	estimate	VBN
37894	1379	24	,	,	,
37894	1379	25	as	as	IN
37894	1379	26	regards	regard	VBZ
37894	1379	27	the	the	DT
37894	1379	28	numbers	number	NNS
37894	1379	29	of	of	IN
37894	1379	30	birds	bird	NNS
37894	1379	31	using	use	VBG
37894	1379	32	it	-PRON-	PRP
37894	1379	33	in	in	IN
37894	1379	34	comparison	comparison	NN
37894	1379	35	with	with	IN
37894	1379	36	the	the	DT
37894	1379	37	numbers	number	NNS
37894	1379	38	of	of	IN
37894	1379	39	birds	bird	NNS
37894	1379	40	using	use	VBG
37894	1379	41	the	the	DT
37894	1379	42	Mexican	Mexican	NNP
37894	1379	43	and	and	CC
37894	1379	44	Gulf	Gulf	NNP
37894	1379	45	routes	route	NNS
37894	1379	46	.	.	.
37894	1380	1	10	10	CD
37894	1380	2	.	.	.
37894	1381	1	The	the	DT
37894	1381	2	amount	amount	NN
37894	1381	3	of	of	IN
37894	1381	4	migration	migration	NN
37894	1381	5	is	be	VBZ
37894	1381	6	apparently	apparently	RB
37894	1381	7	seldom	seldom	RB
37894	1381	8	sufficient	sufficient	JJ
37894	1381	9	to	to	TO
37894	1381	10	produce	produce	VB
37894	1381	11	heavy	heavy	JJ
37894	1381	12	densities	density	NNS
37894	1381	13	of	of	IN
37894	1381	14	transient	transient	JJ
37894	1381	15	species	specie	NNS
37894	1381	16	on	on	IN
37894	1381	17	the	the	DT
37894	1381	18	ground	ground	NN
37894	1381	19	without	without	IN
37894	1381	20	the	the	DT
37894	1381	21	operation	operation	NN
37894	1381	22	of	of	IN
37894	1381	23	concentrative	concentrative	JJ
37894	1381	24	factors	factor	NNS
37894	1381	25	such	such	JJ
37894	1381	26	as	as	IN
37894	1381	27	ecological	ecological	JJ
37894	1381	28	patterns	pattern	NNS
37894	1381	29	and	and	CC
37894	1381	30	meteorological	meteorological	JJ
37894	1381	31	forces	force	NNS
37894	1381	32	.	.	.
37894	1382	1	11	11	CD
37894	1382	2	.	.	.
37894	1383	1	The	the	DT
37894	1383	2	absence	absence	NN
37894	1383	3	or	or	CC
37894	1383	4	scarcity	scarcity	NN
37894	1383	5	of	of	IN
37894	1383	6	transients	transient	NNS
37894	1383	7	in	in	IN
37894	1383	8	some	some	DT
37894	1383	9	areas	area	NNS
37894	1383	10	in	in	IN
37894	1383	11	fine	fine	JJ
37894	1383	12	weather	weather	NN
37894	1383	13	may	may	MD
37894	1383	14	be	be	VB
37894	1383	15	explained	explain	VBN
37894	1383	16	by	by	IN
37894	1383	17	this	this	DT
37894	1383	18	consideration	consideration	NN
37894	1383	19	.	.	.
37894	1384	1	12	12	CD
37894	1384	2	.	.	.
37894	1385	1	A	a	DT
37894	1385	2	striking	striking	JJ
37894	1385	3	correlation	correlation	NN
37894	1385	4	exists	exist	VBZ
37894	1385	5	between	between	IN
37894	1385	6	air	air	NN
37894	1385	7	currents	current	NNS
37894	1385	8	and	and	CC
37894	1385	9	the	the	DT
37894	1385	10	directional	directional	JJ
37894	1385	11	flight	flight	NN
37894	1385	12	trends	trend	NNS
37894	1385	13	of	of	IN
37894	1385	14	birds	bird	NNS
37894	1385	15	,	,	,
37894	1385	16	suggesting	suggest	VBG
37894	1385	17	that	that	IN
37894	1385	18	most	most	JJS
37894	1385	19	night	night	NN
37894	1385	20	migrants	migrant	NNS
37894	1385	21	travel	travel	VBP
37894	1385	22	by	by	IN
37894	1385	23	a	a	DT
37894	1385	24	system	system	NN
37894	1385	25	of	of	IN
37894	1385	26	pressure	pressure	NN
37894	1385	27	-	-	HYPH
37894	1385	28	pattern	pattern	NN
37894	1385	29	flying	flying	NN
37894	1385	30	.	.	.
37894	1386	1	LITERATURE	LITERATURE	NNP
37894	1386	2	CITED	CITED	NNP
37894	1386	3	ALLEN	ALLEN	NNP
37894	1386	4	,	,	,
37894	1386	5	R.	R.	NNP
37894	1386	6	P.	P.	NNP
37894	1386	7	,	,	,
37894	1386	8	AND	and	CC
37894	1386	9	R.	R.	NNP
37894	1386	10	T.	T.	NNP
37894	1386	11	PETERSON	PETERSON	NNP
37894	1386	12	1936	1936	CD
37894	1386	13	.	.	.
37894	1387	1	The	the	DT
37894	1387	2	hawk	hawk	NN
37894	1387	3	migrations	migration	NNS
37894	1387	4	at	at	IN
37894	1387	5	Cape	Cape	NNP
37894	1387	6	May	May	NNP
37894	1387	7	Point	Point	NNP
37894	1387	8	,	,	,
37894	1387	9	New	New	NNP
37894	1387	10	Jersey	Jersey	NNP
37894	1387	11	.	.	.
37894	1388	1	Auk	auk	NN
37894	1388	2	,	,	,
37894	1388	3	53:393	53:393	CD
37894	1388	4	-	-	HYPH
37894	1388	5	404	404	CD
37894	1388	6	.	.	.
37894	1389	1	ANONYMOUS	ANONYMOUS	NNP
37894	1389	2	1936	1936	CD
37894	1389	3	-	-	SYM
37894	1389	4	1941	1941	CD
37894	1389	5	.	.	.
37894	1390	1	Tables	table	NNS
37894	1390	2	of	of	IN
37894	1390	3	computed	compute	VBN
37894	1390	4	altitude	altitude	NN
37894	1390	5	and	and	CC
37894	1390	6	azimuth	azimuth	NN
37894	1390	7	.	.	.
37894	1391	1	U.	U.	NNP
37894	1391	2	S.	S.	NNP
37894	1391	3	Navy	Navy	NNP
37894	1391	4	Department	Department	NNP
37894	1391	5	Hydrographic	Hydrographic	NNP
37894	1391	6	Office	Office	NNP
37894	1391	7	.	.	.
37894	1392	1	U.	U.	NNP
37894	1392	2	S.	S.	NNP
37894	1392	3	Govt	Govt	NNP
37894	1392	4	.	.	.
37894	1393	1	Printing	print	VBG
37894	1393	2	Office	Office	NNP
37894	1393	3	,	,	,
37894	1393	4	Washington	Washington	NNP
37894	1393	5	,	,	,
37894	1393	6	D.	D.	NNP
37894	1393	7	C.	C.	NNP
37894	1393	8	,	,	,
37894	1393	9	vols	vol	NNS
37894	1393	10	.	.	.
37894	1394	1	3	3	CD
37894	1394	2	-	-	SYM
37894	1394	3	5	5	CD
37894	1394	4	.	.	.
37894	1395	1	1941	1941	CD
37894	1395	2	.	.	.
37894	1396	1	Airway	Airway	NNP
37894	1396	2	meteorological	meteorological	JJ
37894	1396	3	atlas	atlas	NN
37894	1396	4	for	for	IN
37894	1396	5	the	the	DT
37894	1396	6	United	United	NNP
37894	1396	7	States	States	NNP
37894	1396	8	.	.	.
37894	1397	1	Weather	Weather	NNP
37894	1397	2	Bureau	Bureau	NNP
37894	1397	3	Publ	Publ	VBZ
37894	1397	4	.	.	.
37894	1398	1	1314	1314	CD
37894	1398	2	.	.	.
37894	1399	1	U.	U.	NNP
37894	1399	2	S.	S.	NNP
37894	1399	3	Dept	Dept	NNP
37894	1399	4	.	.	.
37894	1400	1	Commerce	Commerce	NNP
37894	1400	2	,	,	,
37894	1400	3	Washington	Washington	NNP
37894	1400	4	,	,	,
37894	1400	5	D.	D.	NNP
37894	1400	6	C.	C.	NNP
37894	1400	7	1945	1945	CD
37894	1400	8	-	-	SYM
37894	1400	9	1948	1948	CD
37894	1400	10	.	.	.
37894	1401	1	The	the	DT
37894	1401	2	American	american	JJ
37894	1401	3	air	air	NN
37894	1401	4	almanac	almanac	NN
37894	1401	5	.	.	.
37894	1402	1	U.	U.	NNP
37894	1402	2	S.	S.	NNP
37894	1402	3	Naval	Naval	NNP
37894	1402	4	Observatory	Observatory	NNP
37894	1402	5	.	.	.
37894	1403	1	U.	U.	NNP
37894	1403	2	S.	S.	NNP
37894	1403	3	Govt	Govt	NNP
37894	1403	4	.	.	.
37894	1404	1	Printing	print	VBG
37894	1404	2	Office	Office	NNP
37894	1404	3	,	,	,
37894	1404	4	Washington	Washington	NNP
37894	1404	5	,	,	,
37894	1404	6	D.	D.	NNP
37894	1404	7	C.	C.	NNP
37894	1404	8	,	,	,
37894	1404	9	3	3	CD
37894	1404	10	vols	vol	NNS
37894	1404	11	.	.	.
37894	1404	12	,	,	,
37894	1404	13	issued	issue	VBN
37894	1404	14	annually	annually	RB
37894	1404	15	.	.	.
37894	1405	1	1948_a	1948_a	CD
37894	1405	2	_	_	NNP
37894	1405	3	.	.	.
37894	1406	1	Meteorological	meteorological	JJ
37894	1406	2	and	and	CC
37894	1406	3	climatological	climatological	JJ
37894	1406	4	data	datum	NNS
37894	1406	5	for	for	IN
37894	1406	6	April	April	NNP
37894	1406	7	1948	1948	CD
37894	1406	8	.	.	.
37894	1407	1	Monthly	Monthly	NNP
37894	1407	2	Weather	Weather	NNP
37894	1407	3	Review	Review	NNP
37894	1407	4	,	,	,
37894	1407	5	April	April	NNP
37894	1407	6	1948	1948	CD
37894	1407	7	,	,	,
37894	1407	8	76:65	76:65	CD
37894	1407	9	-	-	SYM
37894	1407	10	84	84	CD
37894	1407	11	,	,	,
37894	1407	12	10	10	CD
37894	1407	13	charts	chart	NNS
37894	1407	14	.	.	.
37894	1408	1	1948_b	1948_b	CD
37894	1408	2	_	_	NNP
37894	1408	3	.	.	.
37894	1409	1	Meteorological	meteorological	JJ
37894	1409	2	and	and	CC
37894	1409	3	climatological	climatological	JJ
37894	1409	4	data	datum	NNS
37894	1409	5	for	for	IN
37894	1409	6	May	May	NNP
37894	1409	7	1948	1948	CD
37894	1409	8	.	.	.
37894	1410	1	Monthly	Monthly	NNP
37894	1410	2	Weather	Weather	NNP
37894	1410	3	Review	Review	NNP
37894	1410	4	,	,	,
37894	1410	5	May	May	NNP
37894	1410	6	1948	1948	CD
37894	1410	7	,	,	,
37894	1410	8	76:85	76:85	CD
37894	1410	9	-	-	SYM
37894	1410	10	103	103	CD
37894	1410	11	,	,	,
37894	1410	12	11	11	CD
37894	1410	13	charts	chart	NNS
37894	1410	14	.	.	.
37894	1411	1	BAGG	BAGG	NNP
37894	1411	2	,	,	,
37894	1411	3	A.	a.	NN
37894	1411	4	M.	M.	NNP
37894	1411	5	1948	1948	CD
37894	1411	6	.	.	.
37894	1412	1	Barometric	barometric	JJ
37894	1412	2	pressure	pressure	NN
37894	1412	3	-	-	HYPH
37894	1412	4	patterns	pattern	NNS
37894	1412	5	and	and	CC
37894	1412	6	spring	spring	NN
37894	1412	7	migration	migration	NN
37894	1412	8	.	.	.
37894	1413	1	Auk	auk	NN
37894	1413	2	,	,	,
37894	1413	3	65:147	65:147	CD
37894	1413	4	.	.	.
37894	1414	1	BERGMAN	BERGMAN	NNP
37894	1414	2	,	,	,
37894	1414	3	G.	G.	NNP
37894	1414	4	1941	1941	CD
37894	1414	5	.	.	.
37894	1415	1	Der	Der	NNP
37894	1415	2	Fruhlingszug	Fruhlingszug	NNP
37894	1415	3	von	von	NNP
37894	1415	4	_	_	NNP
37894	1415	5	Clangula	Clangula	NNP
37894	1415	6	hyemalis	hyemalis	NN
37894	1415	7	_	_	NNP
37894	1415	8	(	(	-LRB-
37894	1415	9	L.	L.	NNP
37894	1415	10	)	)	-RRB-
37894	1415	11	und	und	NN
37894	1415	12	_	_	NNP
37894	1415	13	Oidemia	Oidemia	NNP
37894	1415	14	nigra	nigra	NN
37894	1415	15	_	_	NNP
37894	1415	16	(	(	-LRB-
37894	1415	17	L.	L.	NNP
37894	1415	18	)	)	-RRB-
37894	1415	19	bei	bei	NNP
37894	1415	20	Helsingfors	Helsingfors	NNP
37894	1415	21	.	.	.
37894	1416	1	Eine	Eine	NNP
37894	1416	2	Studie	Studie	NNP
37894	1416	3	über	über	NN
37894	1416	4	Zugverlauf	Zugverlauf	NNS
37894	1416	5	und	und	NN
37894	1416	6	Witterung	Witterung	NNP
37894	1416	7	sowie	sowie	NN
37894	1416	8	Tagesrhythmus	Tagesrhythmus	NNP
37894	1416	9	und	und	VBD
37894	1416	10	Flughöhe	Flughöhe	NNP
37894	1416	11	.	.	.
37894	1417	1	Ornis	Ornis	NNP
37894	1417	2	Fennica	Fennica	NNP
37894	1417	3	,	,	,
37894	1417	4	18:1	18:1	CD
37894	1417	5	-	-	SYM
37894	1417	6	26	26	CD
37894	1417	7	.	.	.
37894	1418	1	BRAY	BRAY	NNP
37894	1418	2	,	,	,
37894	1418	3	R.	R.	NNP
37894	1418	4	A.	A.	NNP
37894	1419	1	1895	1895	CD
37894	1419	2	.	.	.
37894	1420	1	A	a	DT
37894	1420	2	remarkable	remarkable	JJ
37894	1420	3	flight	flight	NN
37894	1420	4	of	of	IN
37894	1420	5	birds	bird	NNS
37894	1420	6	.	.	.
37894	1421	1	Nature	Nature	NNP
37894	1421	2	(	(	-LRB-
37894	1421	3	London	London	NNP
37894	1421	4	)	)	-RRB-
37894	1421	5	,	,	,
37894	1421	6	52:415	52:415	CD
37894	1421	7	.	.	.
37894	1422	1	CARPENTER	CARPENTER	NNP
37894	1422	2	,	,	,
37894	1422	3	F.	F.	NNP
37894	1422	4	W.	W.	NNP
37894	1422	5	1906	1906	CD
37894	1422	6	.	.	.
37894	1423	1	An	an	DT
37894	1423	2	astronomical	astronomical	JJ
37894	1423	3	determination	determination	NN
37894	1423	4	of	of	IN
37894	1423	5	the	the	DT
37894	1423	6	height	height	NN
37894	1423	7	of	of	IN
37894	1423	8	birds	bird	NNS
37894	1423	9	during	during	IN
37894	1423	10	nocturnal	nocturnal	JJ
37894	1423	11	migration	migration	NN
37894	1423	12	.	.	.
37894	1424	1	Auk	auk	NN
37894	1424	2	,	,	,
37894	1424	3	23:210	23:210	CD
37894	1424	4	-	-	SYM
37894	1424	5	217	217	CD
37894	1424	6	.	.	.
37894	1425	1	CHAPMAN	CHAPMAN	NNP
37894	1425	2	,	,	,
37894	1425	3	F.	F.	NNP
37894	1425	4	M.	M.	NNP
37894	1425	5	1888	1888	CD
37894	1425	6	.	.	.
37894	1426	1	Observations	observation	NNS
37894	1426	2	on	on	IN
37894	1426	3	the	the	DT
37894	1426	4	nocturnal	nocturnal	JJ
37894	1426	5	migration	migration	NN
37894	1426	6	of	of	IN
37894	1426	7	birds	bird	NNS
37894	1426	8	.	.	.
37894	1427	1	Auk	auk	NN
37894	1427	2	,	,	,
37894	1427	3	5:37	5:37	CD
37894	1427	4	-	-	SYM
37894	1427	5	39	39	CD
37894	1427	6	.	.	.
37894	1428	1	DAVIS	DAVIS	NNP
37894	1428	2	,	,	,
37894	1428	3	L.	L.	NNP
37894	1428	4	I.	I.	NNP
37894	1429	1	1936	1936	CD
37894	1429	2	-	-	SYM
37894	1429	3	1940	1940	CD
37894	1429	4	.	.	.
37894	1430	1	The	the	DT
37894	1430	2	season	season	NN
37894	1430	3	:	:	:
37894	1430	4	lower	low	JJR
37894	1430	5	Rio	Rio	NNP
37894	1430	6	Grande	Grande	NNP
37894	1430	7	Valley	Valley	NNP
37894	1430	8	region	region	NN
37894	1430	9	.	.	.
37894	1431	1	Bird	Bird	NNP
37894	1431	2	-	-	HYPH
37894	1431	3	Lore	Lore	NNP
37894	1431	4	(	(	-LRB-
37894	1431	5	now	now	RB
37894	1431	6	Audubon	Audubon	NNP
37894	1431	7	Mag	Mag	NNP
37894	1431	8	.	.	.
37894	1432	1	)	)	-RRB-
37894	1432	2	,	,	,
37894	1432	3	38	38	CD
37894	1432	4	-	-	SYM
37894	1432	5	42	42	CD
37894	1432	6	.	.	.
37894	1433	1	F.	F.	NNP
37894	1433	2	[	[	-LRB-
37894	1433	3	ARNER	ARNER	NNP
37894	1433	4	]	]	-RRB-
37894	1433	5	,	,	,
37894	1433	6	D.	D.	NNP
37894	1433	7	[	[	-LRB-
37894	1433	8	ONALD	ONALD	NNP
37894	1433	9	]	]	-RRB-
37894	1433	10	S.	S.	NNP
37894	1433	11	1947	1947	CD
37894	1433	12	.	.	.
37894	1434	1	Studies	study	NNS
37894	1434	2	on	on	IN
37894	1434	3	daily	daily	JJ
37894	1434	4	rhythm	rhythm	NN
37894	1434	5	of	of	IN
37894	1434	6	caged	cage	VBN
37894	1434	7	migrant	migrant	NN
37894	1434	8	birds	bird	NNS
37894	1434	9	(	(	-LRB-
37894	1434	10	review	review	NN
37894	1434	11	of	of	IN
37894	1434	12	Palmgren	Palmgren	NNP
37894	1434	13	article	article	NN
37894	1434	14	)	)	-RRB-
37894	1434	15	.	.	.
37894	1435	1	Bird	Bird	NNP
37894	1435	2	-	-	HYPH
37894	1435	3	Banding	Banding	NNP
37894	1435	4	,	,	,
37894	1435	5	18:83	18:83	CD
37894	1435	6	-	-	SYM
37894	1435	7	84	84	CD
37894	1435	8	.	.	.
37894	1436	1	GATES	GATES	NNP
37894	1436	2	,	,	,
37894	1436	3	W.	W.	NNP
37894	1436	4	H.	H.	NNP
37894	1436	5	1933	1933	CD
37894	1436	6	.	.	.
37894	1437	1	Hailstone	hailstone	JJ
37894	1437	2	damage	damage	NN
37894	1437	3	to	to	IN
37894	1437	4	birds	bird	NNS
37894	1437	5	.	.	.
37894	1438	1	Science	science	NN
37894	1438	2	,	,	,
37894	1438	3	78:263	78:263	CD
37894	1438	4	-	-	SYM
37894	1438	5	264	264	CD
37894	1438	6	.	.	.
37894	1439	1	HOWELL	HOWELL	NNP
37894	1439	2	,	,	,
37894	1439	3	A.	a.	NN
37894	1439	4	H.	H.	NNP
37894	1439	5	1932	1932	CD
37894	1439	6	.	.	.
37894	1440	1	Florida	Florida	NNP
37894	1440	2	bird	bird	NN
37894	1440	3	life	life	NN
37894	1440	4	.	.	.
37894	1441	1	Florida	Florida	NNP
37894	1441	2	Department	Department	NNP
37894	1441	3	Game	Game	NNP
37894	1441	4	and	and	CC
37894	1441	5	Fresh	Fresh	NNP
37894	1441	6	Water	Water	NNP
37894	1441	7	Fish	Fish	NNP
37894	1441	8	,	,	,
37894	1441	9	Tallahassee	Tallahassee	NNP
37894	1441	10	,	,	,
37894	1441	11	1	1	CD
37894	1441	12	-	-	SYM
37894	1441	13	579	579	CD
37894	1441	14	+	+	SYM
37894	1441	15	14	14	CD
37894	1441	16	pp	pp	NNP
37894	1441	17	.	.	NNP
37894	1441	18	,	,	,
37894	1441	19	58	58	CD
37894	1441	20	pls	pls	UH
37894	1441	21	.	.	.
37894	1441	22	,	,	,
37894	1441	23	72	72	CD
37894	1441	24	text	text	NN
37894	1441	25	figs	fig	NNS
37894	1441	26	.	.	.
37894	1442	1	LANSBERG	LANSBERG	NNP
37894	1442	2	,	,	,
37894	1442	3	H.	H.	NNP
37894	1442	4	1948	1948	CD
37894	1442	5	.	.	.
37894	1443	1	Bird	bird	NN
37894	1443	2	migration	migration	NN
37894	1443	3	and	and	CC
37894	1443	4	pressure	pressure	NN
37894	1443	5	patterns	pattern	NNS
37894	1443	6	.	.	.
37894	1444	1	Science	science	NN
37894	1444	2	,	,	,
37894	1444	3	108:708	108:708	CD
37894	1444	4	-	-	SYM
37894	1444	5	709	709	CD
37894	1444	6	.	.	.
37894	1445	1	LIBBY	LIBBY	NNP
37894	1445	2	,	,	,
37894	1445	3	O.	O.	NNP
37894	1445	4	G.	G.	NNP
37894	1445	5	1899	1899	CD
37894	1445	6	.	.	.
37894	1446	1	The	the	DT
37894	1446	2	nocturnal	nocturnal	JJ
37894	1446	3	flight	flight	NN
37894	1446	4	of	of	IN
37894	1446	5	migratory	migratory	NN
37894	1446	6	birds	bird	NNS
37894	1446	7	.	.	.
37894	1447	1	Auk	auk	NN
37894	1447	2	,	,	,
37894	1447	3	16:140	16:140	CD
37894	1447	4	-	-	SYM
37894	1447	5	146	146	CD
37894	1447	6	.	.	.
37894	1448	1	LOWERY	LOWERY	NNP
37894	1448	2	,	,	,
37894	1448	3	G.	G.	NNP
37894	1448	4	H.	H.	NNP
37894	1448	5	,	,	,
37894	1448	6	JR	JR	NNP
37894	1448	7	.	.	.
37894	1448	8	1945	1945	CD
37894	1448	9	.	.	.
37894	1449	1	Trans	Trans	NNP
37894	1449	2	-	-	NNP
37894	1449	3	Gulf	Gulf	NNP
37894	1449	4	spring	spring	NN
37894	1449	5	migration	migration	NN
37894	1449	6	of	of	IN
37894	1449	7	birds	bird	NNS
37894	1449	8	and	and	CC
37894	1449	9	the	the	DT
37894	1449	10	coastal	coastal	JJ
37894	1449	11	hiatus	hiatus	NN
37894	1449	12	.	.	.
37894	1450	1	Wilson	Wilson	NNP
37894	1450	2	Bull	Bull	NNP
37894	1450	3	.	.	NNP
37894	1450	4	,	,	,
37894	1450	5	57:92	57:92	CD
37894	1450	6	-	-	SYM
37894	1450	7	121	121	CD
37894	1450	8	.	.	.
37894	1451	1	1946	1946	CD
37894	1451	2	.	.	.
37894	1452	1	Evidence	evidence	NN
37894	1452	2	of	of	IN
37894	1452	3	trans	trans	JJ
37894	1452	4	-	-	JJ
37894	1452	5	Gulf	Gulf	NNP
37894	1452	6	migration	migration	NN
37894	1452	7	.	.	.
37894	1453	1	Auk	auk	NN
37894	1453	2	,	,	,
37894	1453	3	63:175	63:175	CD
37894	1453	4	-	-	HYPH
37894	1453	5	211	211	CD
37894	1453	6	.	.	.
37894	1454	1	MAYHEW	MAYHEW	NNP
37894	1454	2	,	,	,
37894	1454	3	D.	D.	NNP
37894	1454	4	F.	F.	NNP
37894	1454	5	1949	1949	CD
37894	1454	6	.	.	.
37894	1455	1	Atmospheric	atmospheric	JJ
37894	1455	2	pressure	pressure	NN
37894	1455	3	and	and	CC
37894	1455	4	bird	bird	NN
37894	1455	5	flight	flight	NN
37894	1455	6	.	.	.
37894	1456	1	Science	science	NN
37894	1456	2	,	,	,
37894	1456	3	109:403	109:403	CD
37894	1456	4	.	.	.
37894	1457	1	OVERING	OVERING	NNP
37894	1457	2	,	,	,
37894	1457	3	R.	R.	NNP
37894	1457	4	1938	1938	CD
37894	1457	5	.	.	.
37894	1458	1	High	high	JJ
37894	1458	2	mortality	mortality	NN
37894	1458	3	at	at	IN
37894	1458	4	the	the	DT
37894	1458	5	Washington	Washington	NNP
37894	1458	6	Monument	Monument	NNP
37894	1458	7	.	.	.
37894	1459	1	Auk	auk	NN
37894	1459	2	,	,	,
37894	1459	3	55:679	55:679	CD
37894	1459	4	.	.	.
37894	1460	1	PALMGREN	PALMGREN	NNP
37894	1460	2	,	,	,
37894	1460	3	P.	P.	NNP
37894	1460	4	1944	1944	CD
37894	1460	5	.	.	.
37894	1461	1	Studien	Studien	NNP
37894	1461	2	über	über	NN
37894	1461	3	die	die	VBP
37894	1461	4	Tagesrhythmik	Tagesrhythmik	NNP
37894	1461	5	gekäfigter	gekäfigter	NN
37894	1461	6	Zugvögel	Zugvögel	NNP
37894	1461	7	.	.	.
37894	1462	1	Zeitschrift	Zeitschrift	NNP
37894	1462	2	für	für	NN
37894	1462	3	Tierpsychologie	Tierpsychologie	NNP
37894	1462	4	,	,	,
37894	1462	5	6:44	6:44	CD
37894	1462	6	-	-	SYM
37894	1462	7	86	86	CD
37894	1462	8	.	.	.
37894	1463	1	POUGH	POUGH	NNP
37894	1463	2	,	,	,
37894	1463	3	R.	R.	NNP
37894	1463	4	H.	H.	NNP
37894	1463	5	1948	1948	CD
37894	1463	6	.	.	.
37894	1464	1	Out	out	IN
37894	1464	2	of	of	IN
37894	1464	3	the	the	DT
37894	1464	4	night	night	NN
37894	1464	5	sky	sky	NN
37894	1464	6	.	.	.
37894	1465	1	Audubon	Audubon	NNP
37894	1465	2	Mag	Mag	NNP
37894	1465	3	.	.	NNP
37894	1465	4	,	,	,
37894	1465	5	50:354	50:354	CD
37894	1465	6	-	-	SYM
37894	1465	7	355	355	CD
37894	1465	8	.	.	.
37894	1466	1	PUTKONEN	PUTKONEN	NNP
37894	1466	2	,	,	,
37894	1466	3	T.	t.	NN
37894	1466	4	A.	a.	NN
37894	1467	1	1942	1942	CD
37894	1467	2	.	.	.
37894	1468	1	Kevätmuutosta	Kevätmuutosta	NNP
37894	1468	2	Viipurinlakdella	Viipurinlakdella	NNP
37894	1468	3	.	.	.
37894	1469	1	Ornis	Ornis	NNP
37894	1469	2	Fennica	Fennica	NNP
37894	1469	3	,	,	,
37894	1469	4	19:33	19:33	CD
37894	1469	5	-	-	SYM
37894	1469	6	44	44	CD
37894	1469	7	.	.	.
37894	1470	1	RENSE	RENSE	NNP
37894	1470	2	,	,	,
37894	1470	3	W.	W.	NNP
37894	1470	4	A.	A.	NNP
37894	1471	1	1946	1946	CD
37894	1471	2	.	.	.
37894	1472	1	Astronomy	Astronomy	NNP
37894	1472	2	and	and	CC
37894	1472	3	ornithology	ornithology	NN
37894	1472	4	.	.	.
37894	1473	1	Popular	Popular	NNP
37894	1473	2	Astronomy	Astronomy	NNP
37894	1473	3	,	,	,
37894	1473	4	54:55	54:55	CD
37894	1473	5	-	-	SYM
37894	1473	6	73	73	CD
37894	1473	7	.	.	.
37894	1474	1	SCOTT	SCOTT	NNP
37894	1474	2	,	,	,
37894	1474	3	W.	W.	NNP
37894	1474	4	E.	E.	NNP
37894	1474	5	D.	D.	NNP
37894	1474	6	1881_a	1881_a	NNP
37894	1474	7	.	.	.
37894	1474	8	_	_	NNP
37894	1474	9	Some	some	DT
37894	1474	10	observations	observation	NNS
37894	1474	11	on	on	IN
37894	1474	12	the	the	DT
37894	1474	13	migration	migration	NN
37894	1474	14	of	of	IN
37894	1474	15	birds	bird	NNS
37894	1474	16	.	.	.
37894	1475	1	Bull	Bull	NNP
37894	1475	2	.	.	.
37894	1476	1	Nuttall	Nuttall	NNP
37894	1476	2	Orni	Orni	NNP
37894	1476	3	.	.	.
37894	1477	1	Club	Club	NNP
37894	1477	2	,	,	,
37894	1477	3	6:97	6:97	CD
37894	1477	4	-	-	SYM
37894	1477	5	100	100	CD
37894	1477	6	.	.	.
37894	1478	1	1881_b	1881_b	CD
37894	1478	2	.	.	.
37894	1478	3	_	_	NNP
37894	1478	4	Migration	Migration	NNP
37894	1478	5	of	of	IN
37894	1478	6	birds	bird	NNS
37894	1478	7	at	at	IN
37894	1478	8	night	night	NN
37894	1478	9	.	.	.
37894	1479	1	Bull	Bull	NNP
37894	1479	2	.	.	.
37894	1480	1	Nuttall	Nuttall	NNP
37894	1480	2	Orni	Orni	NNP
37894	1480	3	.	.	.
37894	1481	1	Club	Club	NNP
37894	1481	2	,	,	,
37894	1481	3	6:188	6:188	CD
37894	1481	4	.	.	.
37894	1482	1	SIIVONEN	SIIVONEN	NNP
37894	1482	2	,	,	,
37894	1482	3	L.	L.	NNP
37894	1482	4	1936	1936	CD
37894	1482	5	.	.	.
37894	1483	1	Die	Die	NNP
37894	1483	2	Stärkevariation	Stärkevariation	NNP
37894	1483	3	des	des	NNP
37894	1483	4	Nächtlichen	Nächtlichen	NNP
37894	1483	5	Zuges	Zuges	NNP
37894	1483	6	bei	bei	VBP
37894	1483	7	_	_	NNP
37894	1483	8	Turdus	Turdus	NNP
37894	1483	9	ph	ph	NNP
37894	1483	10	.	.	.
37894	1484	1	philomelos	philomelos	NNP
37894	1484	2	_	_	NNP
37894	1484	3	Brehn	Brehn	NNP
37894	1484	4	und	und	RB
37894	1484	5	_	_	NNP
37894	1484	6	T.	T.	NNP
37894	1485	1	musicus	musicus	NNP
37894	1485	2	_	_	NNP
37894	1485	3	L.	L.	NNP
37894	1485	4	auf	auf	NNP
37894	1485	5	Grund	Grund	NNP
37894	1485	6	der	der	NNP
37894	1485	7	Zuglaute	Zuglaute	NNP
37894	1485	8	geschätz	geschätz	NNP
37894	1485	9	und	und	VBP
37894	1485	10	mit	mit	NNP
37894	1485	11	der	der	NNP
37894	1485	12	Zugunruhe	Zugunruhe	NNP
37894	1485	13	einer	einer	NN
37894	1485	14	gekäfigten	gekäfigten	VBD
37894	1485	15	Singdrossel	Singdrossel	NNP
37894	1485	16	Verglichen	Verglichen	NNP
37894	1485	17	.	.	.
37894	1486	1	Ornis	Ornis	NNP
37894	1486	2	Fennica	Fennica	NNP
37894	1486	3	,	,	,
37894	1486	4	13:59	13:59	CD
37894	1486	5	-	-	SYM
37894	1486	6	63	63	CD
37894	1486	7	.	.	.
37894	1487	1	SPOFFORD	SPOFFORD	NNP
37894	1487	2	,	,	,
37894	1487	3	W.	W.	NNP
37894	1487	4	R.	R.	NNP
37894	1487	5	1949	1949	CD
37894	1487	6	.	.	.
37894	1488	1	Mortality	mortality	NN
37894	1488	2	of	of	IN
37894	1488	3	birds	bird	NNS
37894	1488	4	at	at	IN
37894	1488	5	the	the	DT
37894	1488	6	ceilometer	ceilometer	NN
37894	1488	7	of	of	IN
37894	1488	8	the	the	DT
37894	1488	9	Nashville	Nashville	NNP
37894	1488	10	airport	airport	NN
37894	1488	11	.	.	.
37894	1489	1	Wilson	Wilson	NNP
37894	1489	2	Bull	Bull	NNP
37894	1489	3	.	.	.
37894	1489	4	,	,	,
37894	1489	5	61:86	61:86	CD
37894	1489	6	-	-	SYM
37894	1489	7	90	90	CD
37894	1489	8	.	.	.
37894	1490	1	STEBBINS	STEBBINS	NNP
37894	1490	2	,	,	,
37894	1490	3	J.	J.	NNP
37894	1491	1	1906	1906	CD
37894	1491	2	.	.	.
37894	1492	1	A	a	DT
37894	1492	2	method	method	NN
37894	1492	3	of	of	IN
37894	1492	4	determining	determine	VBG
37894	1492	5	height	height	NN
37894	1492	6	of	of	IN
37894	1492	7	migrating	migrate	VBG
37894	1492	8	birds	bird	NNS
37894	1492	9	.	.	.
37894	1493	1	Popular	Popular	NNP
37894	1493	2	Astronomy	Astronomy	NNP
37894	1493	3	,	,	,
37894	1493	4	14:65	14:65	CD
37894	1493	5	-	-	SYM
37894	1493	6	70	70	CD
37894	1493	7	.	.	.
37894	1494	1	STEVENS	STEVENS	NNP
37894	1494	2	,	,	,
37894	1494	3	LLOYD	LLOYD	NNP
37894	1494	4	A.	A.	NNP
37894	1495	1	1933	1933	CD
37894	1495	2	.	.	.
37894	1496	1	Upper	upper	JJ
37894	1496	2	-	-	HYPH
37894	1496	3	air	air	NN
37894	1496	4	wind	wind	NN
37894	1496	5	roses	rose	NNS
37894	1496	6	and	and	CC
37894	1496	7	resultant	resultant	JJ
37894	1496	8	winds	wind	NNS
37894	1496	9	for	for	IN
37894	1496	10	the	the	DT
37894	1496	11	eastern	eastern	JJ
37894	1496	12	United	United	NNP
37894	1496	13	States	States	NNP
37894	1496	14	.	.	.
37894	1497	1	Monthly	Monthly	NNP
37894	1497	2	Weather	Weather	NNP
37894	1497	3	Review	Review	NNP
37894	1497	4	,	,	,
37894	1497	5	Supplement	Supplement	NNP
37894	1497	6	No	no	NN
37894	1497	7	.	.	.
37894	1498	1	35	35	CD
37894	1498	2	,	,	,
37894	1498	3	November	November	NNP
37894	1498	4	13	13	CD
37894	1498	5	,	,	,
37894	1498	6	pp	pp	NNP
37894	1498	7	.	.	.
37894	1499	1	1	1	CD
37894	1499	2	-	-	SYM
37894	1499	3	3	3	CD
37894	1499	4	,	,	,
37894	1499	5	65	65	CD
37894	1499	6	figs	fig	NNS
37894	1499	7	.	.	.
37894	1500	1	STONE	STONE	NNP
37894	1500	2	,	,	,
37894	1500	3	W.	W.	NNP
37894	1500	4	1906	1906	CD
37894	1500	5	.	.	.
37894	1501	1	Some	some	DT
37894	1501	2	light	light	NN
37894	1501	3	on	on	IN
37894	1501	4	night	night	NN
37894	1501	5	migration	migration	NN
37894	1501	6	.	.	.
37894	1502	1	Auk	auk	NN
37894	1502	2	,	,	,
37894	1502	3	23:249	23:249	CD
37894	1502	4	-	-	SYM
37894	1502	5	252	252	CD
37894	1502	6	.	.	.
37894	1503	1	1937	1937	CD
37894	1503	2	.	.	.
37894	1504	1	Bird	bird	NN
37894	1504	2	studies	study	NNS
37894	1504	3	at	at	IN
37894	1504	4	Old	Old	NNP
37894	1504	5	Cape	Cape	NNP
37894	1504	6	May.	May	NNP
37894	1505	1	Delaware	Delaware	NNP
37894	1505	2	Valley	Valley	NNP
37894	1505	3	Orni	Orni	NNP
37894	1505	4	.	.	.
37894	1506	1	Club	Club	NNP
37894	1506	2	,	,	,
37894	1506	3	Philadelphia	Philadelphia	NNP
37894	1506	4	,	,	,
37894	1506	5	Vol	Vol	NNP
37894	1506	6	.	.	.
37894	1507	1	1	1	CD
37894	1507	2	,	,	,
37894	1507	3	1	1	CD
37894	1507	4	-	-	SYM
37894	1507	5	520	520	CD
37894	1507	6	+	+	SYM
37894	1507	7	15	15	CD
37894	1507	8	pp	pp	NN
37894	1507	9	.	.	.
37894	1507	10	,	,	,
37894	1507	11	pls	pls	UH
37894	1507	12	.	.	.
37894	1508	1	1	1	CD
37894	1508	2	-	-	SYM
37894	1508	3	46	46	CD
37894	1508	4	and	and	CC
37894	1508	5	frontis	frontis	NN
37894	1508	6	.	.	.
37894	1509	1	THOMSON	THOMSON	NNP
37894	1509	2	,	,	,
37894	1509	3	A.	a.	NN
37894	1509	4	L.	L.	NNP
37894	1509	5	1926	1926	CD
37894	1509	6	.	.	.
37894	1510	1	Problems	problem	NNS
37894	1510	2	of	of	IN
37894	1510	3	bird	bird	NN
37894	1510	4	migration	migration	NN
37894	1510	5	.	.	.
37894	1511	1	Houghton	Houghton	NNP
37894	1511	2	Mifflin	Mifflin	NNP
37894	1511	3	Company	Company	NNP
37894	1511	4	,	,	,
37894	1511	5	Boston	Boston	NNP
37894	1511	6	.	.	.
37894	1512	1	VAN	VAN	NNP
37894	1512	2	OORDT	OORDT	NNP
37894	1512	3	,	,	,
37894	1512	4	G.	G.	NNP
37894	1512	5	1943	1943	CD
37894	1512	6	.	.	.
37894	1513	1	Vogeltrek	Vogeltrek	NNP
37894	1513	2	.	.	.
37894	1514	1	E.	E.	NNP
37894	1514	2	J.	J.	NNP
37894	1514	3	Brill	Brill	NNP
37894	1514	4	,	,	,
37894	1514	5	Leiden	Leiden	NNP
37894	1514	6	,	,	,
37894	1514	7	xii	xii	NN
37894	1514	8	+	+	SYM
37894	1514	9	145	145	CD
37894	1514	10	pp	pp	NN
37894	1514	11	.	.	.
37894	1515	1	VERY	very	RB
37894	1515	2	,	,	,
37894	1515	3	F.	F.	NNP
37894	1515	4	W.	W.	NNP
37894	1515	5	1897	1897	CD
37894	1515	6	.	.	.
37894	1516	1	Observations	observation	NNS
37894	1516	2	of	of	IN
37894	1516	3	the	the	DT
37894	1516	4	passage	passage	NN
37894	1516	5	of	of	IN
37894	1516	6	migrating	migrate	VBG
37894	1516	7	birds	bird	NNS
37894	1516	8	across	across	IN
37894	1516	9	the	the	DT
37894	1516	10	lunar	lunar	JJ
37894	1516	11	disc	disc	NN
37894	1516	12	on	on	IN
37894	1516	13	the	the	DT
37894	1516	14	nights	night	NNS
37894	1516	15	of	of	IN
37894	1516	16	September	September	NNP
37894	1516	17	23	23	CD
37894	1516	18	and	and	CC
37894	1516	19	24	24	CD
37894	1516	20	,	,	,
37894	1516	21	1896	1896	CD
37894	1516	22	.	.	.
37894	1517	1	Science	science	NN
37894	1517	2	,	,	,
37894	1517	3	6:409	6:409	CD
37894	1517	4	-	-	SYM
37894	1517	5	411	411	CD
37894	1517	6	.	.	.
37894	1518	1	WALTERS	WALTERS	NNP
37894	1518	2	,	,	,
37894	1518	3	W.	W.	NNP
37894	1518	4	1927	1927	CD
37894	1518	5	.	.	.
37894	1519	1	Migration	migration	NN
37894	1519	2	and	and	CC
37894	1519	3	the	the	DT
37894	1519	4	telescope	telescope	NN
37894	1519	5	.	.	.
37894	1520	1	Emu	emu	UH
37894	1520	2	,	,	,
37894	1520	3	26:220	26:220	CD
37894	1520	4	-	-	SYM
37894	1520	5	222	222	CD
37894	1520	6	.	.	.
37894	1521	1	WEST	WEST	NNP
37894	1521	2	,	,	,
37894	1521	3	R.	R.	NNP
37894	1521	4	H.	H.	NNP
37894	1521	5	1896	1896	CD
37894	1521	6	.	.	.
37894	1522	1	Flight	flight	NN
37894	1522	2	of	of	IN
37894	1522	3	birds	bird	NNS
37894	1522	4	across	across	IN
37894	1522	5	the	the	DT
37894	1522	6	moon	moon	NN
37894	1522	7	's	's	POS
37894	1522	8	disc	disc	NN
37894	1522	9	.	.	.
37894	1523	1	Nature	Nature	NNP
37894	1523	2	(	(	-LRB-
37894	1523	3	London	London	NNP
37894	1523	4	)	)	-RRB-
37894	1523	5	,	,	,
37894	1523	6	53:131	53:131	CD
37894	1523	7	.	.	.
37894	1524	1	WILLIAMS	WILLIAMS	NNP
37894	1524	2	,	,	,
37894	1524	3	G.	G.	NNP
37894	1524	4	G.	G.	NNP
37894	1524	5	1941	1941	CD
37894	1524	6	-	-	SYM
37894	1524	7	1948	1948	CD
37894	1524	8	.	.	.
37894	1525	1	The	the	DT
37894	1525	2	season	season	NN
37894	1525	3	:	:	:
37894	1525	4	Texas	Texas	NNP
37894	1525	5	coastal	coastal	JJ
37894	1525	6	region	region	NN
37894	1525	7	.	.	.
37894	1526	1	Audubon	Audubon	NNP
37894	1526	2	Mag	Mag	NNP
37894	1526	3	.	.	NNP
37894	1526	4	,	,	,
37894	1526	5	43	43	CD
37894	1526	6	-	-	SYM
37894	1526	7	50	50	CD
37894	1526	8	.	.	.
37894	1527	1	1945	1945	CD
37894	1527	2	.	.	.
37894	1528	1	Do	do	VBP
37894	1528	2	birds	bird	NNS
37894	1528	3	cross	cross	VB
37894	1528	4	the	the	DT
37894	1528	5	Gulf	Gulf	NNP
37894	1528	6	of	of	IN
37894	1528	7	Mexico	Mexico	NNP
37894	1528	8	in	in	IN
37894	1528	9	spring	spring	NN
37894	1528	10	?	?	.
37894	1529	1	Auk	auk	NN
37894	1529	2	,	,	,
37894	1529	3	62:98	62:98	CD
37894	1529	4	-	-	SYM
37894	1529	5	111	111	CD
37894	1529	6	.	.	.
37894	1530	1	1947	1947	CD
37894	1530	2	.	.	.
37894	1531	1	Lowery	lowery	NN
37894	1531	2	on	on	IN
37894	1531	3	trans	trans	JJ
37894	1531	4	-	-	JJ
37894	1531	5	Gulf	Gulf	NNP
37894	1531	6	migration	migration	NN
37894	1531	7	.	.	.
37894	1532	1	Auk	auk	NN
37894	1532	2	,	,	,
37894	1532	3	64:217	64:217	CD
37894	1532	4	-	-	SYM
37894	1532	5	238	238	CD
37894	1532	6	.	.	.
37894	1533	1	WINKENWERDER	WINKENWERDER	NNP
37894	1533	2	,	,	,
37894	1533	3	H.	H.	NNP
37894	1533	4	A.	A.	NNP
37894	1534	1	1902_a	1902_a	CD
37894	1534	2	_	_	NNP
37894	1534	3	.	.	.
37894	1535	1	The	the	DT
37894	1535	2	migration	migration	NN
37894	1535	3	of	of	IN
37894	1535	4	birds	bird	NNS
37894	1535	5	with	with	IN
37894	1535	6	special	special	JJ
37894	1535	7	reference	reference	NN
37894	1535	8	to	to	IN
37894	1535	9	nocturnal	nocturnal	JJ
37894	1535	10	flight	flight	NN
37894	1535	11	.	.	.
37894	1536	1	Bull	Bull	NNP
37894	1536	2	.	.	.
37894	1537	1	Wisconsin	Wisconsin	NNP
37894	1537	2	Nat	Nat	NNP
37894	1537	3	.	.	.
37894	1538	1	Hist	hist	NN
37894	1538	2	.	.	.
37894	1539	1	Soc	Soc	NNP
37894	1539	2	.	.	NNP
37894	1539	3	,	,	,
37894	1539	4	2:177	2:177	NNP
37894	1539	5	-	-	SYM
37894	1539	6	263	263	CD
37894	1539	7	.	.	.
37894	1540	1	1902_b	1902_b	LS
37894	1540	2	_	_	NNP
37894	1540	3	.	.	.
37894	1541	1	Some	some	DT
37894	1541	2	recent	recent	JJ
37894	1541	3	observations	observation	NNS
37894	1541	4	on	on	IN
37894	1541	5	the	the	DT
37894	1541	6	migration	migration	NN
37894	1541	7	of	of	IN
37894	1541	8	birds	bird	NNS
37894	1541	9	.	.	.
37894	1542	1	Bull	Bull	NNP
37894	1542	2	.	.	.
37894	1543	1	Wisconsin	Wisconsin	NNP
37894	1543	2	Nat	Nat	NNP
37894	1543	3	.	.	.
37894	1544	1	Hist	hist	NN
37894	1544	2	.	.	.
37894	1545	1	Soc	Soc	NNP
37894	1545	2	.	.	NNP
37894	1545	3	,	,	,
37894	1545	4	2:97	2:97	CD
37894	1545	5	-	-	SYM
37894	1545	6	107	107	CD
37894	1545	7	.	.	.
37894	1546	1	Transmitted	transmit	VBN
37894	1546	2	June	June	NNP
37894	1546	3	1	1	CD
37894	1546	4	,	,	,
37894	1546	5	1949	1949	CD
37894	1546	6	.	.	.
37894	1547	1	[	[	-LRB-
37894	1547	2	]	]	-RRB-
37894	1547	3	23	23	CD
37894	1547	4	-	-	HYPH
37894	1547	5	1020	1020	CD
37894	1547	6	UNIVERSITY	UNIVERSITY	NNP
37894	1547	7	OF	of	IN
37894	1547	8	KANSAS	KANSAS	NNP
37894	1547	9	PUBLICATIONS	PUBLICATIONS	NNP
37894	1547	10	The	the	DT
37894	1547	11	University	University	NNP
37894	1547	12	of	of	IN
37894	1547	13	Kansas	Kansas	NNP
37894	1547	14	Publications	Publications	NNP
37894	1547	15	,	,	,
37894	1547	16	Museum	Museum	NNP
37894	1547	17	of	of	IN
37894	1547	18	Natural	Natural	NNP
37894	1547	19	History	History	NNP
37894	1547	20	,	,	,
37894	1547	21	are	be	VBP
37894	1547	22	offered	offer	VBN
37894	1547	23	in	in	IN
37894	1547	24	exchange	exchange	NN
37894	1547	25	for	for	IN
37894	1547	26	the	the	DT
37894	1547	27	publications	publication	NNS
37894	1547	28	of	of	IN
37894	1547	29	learned	learn	VBN
37894	1547	30	societies	society	NNS
37894	1547	31	and	and	CC
37894	1547	32	institutions	institution	NNS
37894	1547	33	,	,	,
37894	1547	34	universities	university	NNS
37894	1547	35	and	and	CC
37894	1547	36	libraries	library	NNS
37894	1547	37	.	.	.
37894	1548	1	For	for	IN
37894	1548	2	exchanges	exchange	NNS
37894	1548	3	and	and	CC
37894	1548	4	information	information	NN
37894	1548	5	,	,	,
37894	1548	6	address	address	NN
37894	1548	7	the	the	DT
37894	1548	8	Exchange	Exchange	NNP
37894	1548	9	Desk	Desk	NNP
37894	1548	10	,	,	,
37894	1548	11	University	University	NNP
37894	1548	12	of	of	IN
37894	1548	13	Kansas	Kansas	NNP
37894	1548	14	Library	Library	NNP
37894	1548	15	,	,	,
37894	1548	16	Lawrence	Lawrence	NNP
37894	1548	17	,	,	,
37894	1548	18	Kansas	Kansas	NNP
37894	1548	19	,	,	,
37894	1548	20	U.	U.	NNP
37894	1548	21	S.	S.	NNP
37894	1548	22	A.	a.	NN
37894	1549	1	MUSEUM	MUSEUM	NNP
37894	1549	2	OF	of	IN
37894	1549	3	NATURAL	NATURAL	NNP
37894	1549	4	HISTORY.--E.	HISTORY.--E.	NNP
37894	1550	1	Raymond	Raymond	NNP
37894	1550	2	Hall	Hall	NNP
37894	1550	3	,	,	,
37894	1550	4	Chairman	Chairman	NNP
37894	1550	5	,	,	,
37894	1550	6	Editorial	Editorial	NNP
37894	1550	7	Committee	Committee	NNP
37894	1550	8	.	.	.
37894	1551	1	This	this	DT
37894	1551	2	series	series	NN
37894	1551	3	contains	contain	VBZ
37894	1551	4	contributions	contribution	NNS
37894	1551	5	from	from	IN
37894	1551	6	the	the	DT
37894	1551	7	Museum	Museum	NNP
37894	1551	8	of	of	IN
37894	1551	9	Natural	Natural	NNP
37894	1551	10	History	History	NNP
37894	1551	11	.	.	.
37894	1552	1	Cited	cite	VBN
37894	1552	2	as	as	IN
37894	1552	3	Univ	Univ	NNP
37894	1552	4	.	.	.
37894	1553	1	Kans.	Kansas	NNP
37894	1554	1	Publ	Publ	NNS
37894	1554	2	.	.	.
37894	1554	3	,	,	,
37894	1554	4	Mus	mus	NN
37894	1554	5	.	.	.
37894	1555	1	Nat	Nat	NNP
37894	1555	2	.	.	.
37894	1556	1	Hist	hist	NN
37894	1556	2	.	.	.
37894	1557	1	Vol	Vol	NNP
37894	1557	2	.	.	.
37894	1558	1	1	1	LS
37894	1558	2	.	.	.
37894	1559	1	(	(	-LRB-
37894	1559	2	Complete	complete	JJ
37894	1559	3	)	)	-RRB-
37894	1559	4	Nos	nos	UH
37894	1559	5	.	.	.
37894	1560	1	1	1	CD
37894	1560	2	-	-	SYM
37894	1560	3	26	26	CD
37894	1560	4	.	.	.
37894	1561	1	Pp	Pp	NNP
37894	1561	2	.	.	.
37894	1562	1	1	1	CD
37894	1562	2	-	-	SYM
37894	1562	3	638	638	CD
37894	1562	4	.	.	.
37894	1563	1	August	August	NNP
37894	1563	2	15	15	CD
37894	1563	3	,	,	,
37894	1563	4	1946-January	1946-january	CD
37894	1563	5	20	20	CD
37894	1563	6	,	,	,
37894	1563	7	1951	1951	CD
37894	1563	8	.	.	.
37894	1564	1	Vol	Vol	NNP
37894	1564	2	.	.	.
37894	1565	1	2	2	LS
37894	1565	2	.	.	.
37894	1566	1	(	(	-LRB-
37894	1566	2	Complete	complete	JJ
37894	1566	3	)	)	-RRB-
37894	1566	4	Mammals	Mammals	NNPS
37894	1566	5	of	of	IN
37894	1566	6	Washington	Washington	NNP
37894	1566	7	.	.	.
37894	1567	1	By	by	IN
37894	1567	2	Walter	Walter	NNP
37894	1567	3	W.	W.	NNP
37894	1567	4	Dalquest	Dalquest	NNP
37894	1567	5	.	.	.
37894	1568	1	Pp	Pp	NNP
37894	1568	2	.	.	.
37894	1569	1	1	1	CD
37894	1569	2	-	-	SYM
37894	1569	3	444	444	CD
37894	1569	4	,	,	,
37894	1569	5	140	140	CD
37894	1569	6	figures	figure	NNS
37894	1569	7	in	in	IN
37894	1569	8	text	text	NN
37894	1569	9	.	.	.
37894	1570	1	April	April	NNP
37894	1570	2	9	9	CD
37894	1570	3	,	,	,
37894	1570	4	1948	1948	CD
37894	1570	5	.	.	.
37894	1571	1	Vol	Vol	NNP
37894	1571	2	.	.	.
37894	1572	1	3	3	LS
37894	1572	2	.	.	.
37894	1573	1	1	1	LS
37894	1573	2	.	.	.
37894	1574	1	The	the	DT
37894	1574	2	avifauna	avifauna	NN
37894	1574	3	of	of	IN
37894	1574	4	Micronesia	Micronesia	NNP
37894	1574	5	,	,	,
37894	1574	6	its	-PRON-	PRP$
37894	1574	7	origin	origin	NN
37894	1574	8	,	,	,
37894	1574	9	evolution	evolution	NN
37894	1574	10	,	,	,
37894	1574	11	and	and	CC
37894	1574	12	distribution	distribution	NN
37894	1574	13	.	.	.
37894	1575	1	By	by	IN
37894	1575	2	Rollin	Rollin	NNP
37894	1575	3	H.	H.	NNP
37894	1575	4	Baker	Baker	NNP
37894	1575	5	.	.	.
37894	1576	1	Pp	Pp	NNP
37894	1576	2	.	.	.
37894	1577	1	1	1	LS
37894	1577	2	-	-	SYM
37894	1577	3	359	359	CD
37894	1577	4	,	,	,
37894	1577	5	16	16	CD
37894	1577	6	figures	figure	NNS
37894	1577	7	in	in	IN
37894	1577	8	text	text	NN
37894	1577	9	.	.	.
37894	1578	1	June	June	NNP
37894	1578	2	12	12	CD
37894	1578	3	,	,	,
37894	1578	4	1951	1951	CD
37894	1578	5	.	.	.
37894	1579	1	2	2	LS
37894	1579	2	.	.	.
37894	1580	1	A	a	DT
37894	1580	2	quantitative	quantitative	JJ
37894	1580	3	study	study	NN
37894	1580	4	of	of	IN
37894	1580	5	the	the	DT
37894	1580	6	nocturnal	nocturnal	JJ
37894	1580	7	migration	migration	NN
37894	1580	8	of	of	IN
37894	1580	9	birds	bird	NNS
37894	1580	10	.	.	.
37894	1581	1	By	by	IN
37894	1581	2	George	George	NNP
37894	1581	3	H.	H.	NNP
37894	1581	4	Lowery	Lowery	NNP
37894	1581	5	,	,	,
37894	1581	6	Jr.	Jr.	NNP
37894	1581	7	Pp	Pp	NNP
37894	1581	8	.	.	.
37894	1582	1	361	361	CD
37894	1582	2	-	-	SYM
37894	1582	3	472	472	CD
37894	1582	4	,	,	,
37894	1582	5	47	47	CD
37894	1582	6	figures	figure	NNS
37894	1582	7	in	in	IN
37894	1582	8	text	text	NN
37894	1582	9	.	.	.
37894	1583	1	June	June	NNP
37894	1583	2	29	29	CD
37894	1583	3	,	,	,
37894	1583	4	1951	1951	CD
37894	1583	5	.	.	.
37894	1584	1	Transcriber	Transcriber	NNP
37894	1584	2	's	's	POS
37894	1584	3	Notes	Notes	NNPS
37894	1584	4	With	with	IN
37894	1584	5	the	the	DT
37894	1584	6	exception	exception	NN
37894	1584	7	of	of	IN
37894	1584	8	the	the	DT
37894	1584	9	typographical	typographical	JJ
37894	1584	10	corrections	correction	NNS
37894	1584	11	detailed	detail	VBN
37894	1584	12	below	below	IN
37894	1584	13	and	and	CC
37894	1584	14	some	some	DT
37894	1584	15	minor	minor	JJ
37894	1584	16	corrections	correction	NNS
37894	1584	17	for	for	IN
37894	1584	18	missing	miss	VBG
37894	1584	19	periods	period	NNS
37894	1584	20	or	or	CC
37894	1584	21	extra	extra	JJ
37894	1584	22	punctuation	punctuation	NN
37894	1584	23	(	(	-LRB-
37894	1584	24	item	item	NN
37894	1584	25	28	28	CD
37894	1584	26	in	in	IN
37894	1584	27	List	List	NNP
37894	1584	28	of	of	IN
37894	1584	29	Figures	Figures	NNPS
37894	1584	30	)	)	-RRB-
37894	1584	31	,	,	,
37894	1584	32	the	the	DT
37894	1584	33	text	text	NN
37894	1584	34	presented	present	VBN
37894	1584	35	here	here	RB
37894	1584	36	is	be	VBZ
37894	1584	37	that	that	DT
37894	1584	38	contained	contain	VBN
37894	1584	39	in	in	IN
37894	1584	40	the	the	DT
37894	1584	41	original	original	JJ
37894	1584	42	printed	print	VBN
37894	1584	43	version	version	NN
37894	1584	44	.	.	.
37894	1585	1	A	a	DT
37894	1585	2	transcription	transcription	NN
37894	1585	3	of	of	IN
37894	1585	4	the	the	DT
37894	1585	5	Data	Data	NNP
37894	1585	6	presented	present	VBN
37894	1585	7	in	in	IN
37894	1585	8	Figure	Figure	NNP
37894	1585	9	12	12	CD
37894	1585	10	was	be	VBD
37894	1585	11	added	add	VBN
37894	1585	12	to	to	TO
37894	1585	13	illustrate	illustrate	VB
37894	1585	14	the	the	DT
37894	1585	15	information	information	NN
37894	1585	16	contained	contain	VBN
37894	1585	17	on	on	IN
37894	1585	18	that	that	DT
37894	1585	19	sheet	sheet	NN
37894	1585	20	.	.	.
37894	1586	1	Some	some	DT
37894	1586	2	text	text	NN
37894	1586	3	was	be	VBD
37894	1586	4	moved	move	VBN
37894	1586	5	to	to	TO
37894	1586	6	rejoin	rejoin	VB
37894	1586	7	paragraphs	paragraph	NNS
37894	1586	8	.	.	.
37894	1587	1	The	the	DT
37894	1587	2	list	list	NN
37894	1587	3	of	of	IN
37894	1587	4	UK	UK	NNP
37894	1587	5	publications	publication	NNS
37894	1587	6	was	be	VBD
37894	1587	7	moved	move	VBN
37894	1587	8	to	to	IN
37894	1587	9	the	the	DT
37894	1587	10	end	end	NN
37894	1587	11	of	of	IN
37894	1587	12	the	the	DT
37894	1587	13	document	document	NN
37894	1587	14	.	.	.
37894	1588	1	In	in	IN
37894	1588	2	writing	write	VBG
37894	1588	3	variables	variable	NNS
37894	1588	4	for	for	IN
37894	1588	5	formulae	formulae	NNP
37894	1588	6	,	,	,
37894	1588	7	superscripted	superscripte	VBN
37894	1588	8	characters	character	NNS
37894	1588	9	are	be	VBP
37894	1588	10	shown	show	VBN
37894	1588	11	using	use	VBG
37894	1588	12	a	a	DT
37894	1588	13	caret	caret	NN
37894	1588	14	(	(	-LRB-
37894	1588	15	^	^	NN
37894	1588	16	)	)	-RRB-
37894	1588	17	.	.	.
37894	1589	1	So	so	RB
37894	1589	2	,	,	,
37894	1589	3	X	X	NNP
37894	1589	4	squared	square	VBD
37894	1589	5	would	would	MD
37894	1589	6	be	be	VB
37894	1589	7	X^2	X^2	NNP
37894	1589	8	.	.	.
37894	1590	1	Subscripts	subscript	NNS
37894	1590	2	are	be	VBP
37894	1590	3	shown	show	VBN
37894	1590	4	using	use	VBG
37894	1590	5	an	an	DT
37894	1590	6	underscore	underscore	NN
37894	1590	7	.	.	.
37894	1591	1	Carbon	carbon	NN
37894	1591	2	dioxide	dioxide	NN
37894	1591	3	is	be	VBZ
37894	1591	4	CO_2	co_2	NN
37894	1591	5	.	.	.
37894	1592	1	Where	where	WRB
37894	1592	2	several	several	JJ
37894	1592	3	superscript	superscript	NN
37894	1592	4	or	or	CC
37894	1592	5	subscript	subscript	NN
37894	1592	6	character(s	character(s	NNP
37894	1592	7	)	)	-RRB-
37894	1592	8	are	be	VBP
37894	1592	9	required	require	VBN
37894	1592	10	or	or	CC
37894	1592	11	to	to	TO
37894	1592	12	aid	aid	VB
37894	1592	13	in	in	IN
37894	1592	14	clarity	clarity	NN
37894	1592	15	,	,	,
37894	1592	16	they	-PRON-	PRP
37894	1592	17	are	be	VBP
37894	1592	18	placed	place	VBN
37894	1592	19	in	in	IN
37894	1592	20	braces	brace	NNS
37894	1592	21	(	(	-LRB-
37894	1592	22	ex	ex	NNP
37894	1592	23	.	.	NNP
37894	1592	24	,	,	,
37894	1592	25	H_{2}O	h_{2}o	JJ
37894	1592	26	for	for	IN
37894	1592	27	water	water	NN
37894	1592	28	and	and	CC
37894	1592	29	[	[	-LRB-
37894	1592	30	theta]_{Npt	theta]_{Npt	NNP
37894	1592	31	.	.	.
37894	1592	32	}	}	-RRB-
37894	1593	1	for	for	IN
37894	1593	2	theta	theta	JJ
37894	1593	3	degrees	degree	NNS
37894	1593	4	from	from	IN
37894	1593	5	the	the	DT
37894	1593	6	North	North	NNP
37894	1593	7	point	point	NN
37894	1593	8	)	)	-RRB-
37894	1593	9	.	.	.
37894	1594	1	Emphasis	Emphasis	NNP
37894	1594	2	Notation	Notation	NNP
37894	1594	3	_	_	NNP
37894	1594	4	Text	Text	NNP
37894	1594	5	_	_	NNP
37894	1594	6	=	=	SYM
37894	1594	7	Italics	Italics	NNP
37894	1594	8	Typographical	Typographical	NNP
37894	1594	9	Corrections	Corrections	NNPS
37894	1594	10	Page	Page	NNP
37894	1594	11	Correction	Correction	NNP
37894	1594	12	385	385	CD
37894	1594	13	flght	flght	NN
37894	1594	14	=	=	NFP
37894	1594	15	>	>	XX
37894	1594	16	flight	flight	NN
37894	1594	17	394	394	CD
37894	1594	18	diargrams	diargram	NNS
37894	1594	19	=	=	SYM
37894	1594	20	>	>	XX
37894	1594	21	diagrams	diagram	VBZ
37894	1594	22	404	404	CD
37894	1594	23	Determinaton	Determinaton	NNP
37894	1594	24	=	=	NFP
37894	1594	25	>	>	XX
37894	1594	26	Determination	determination	NN
37894	1594	27	411	411	CD
37894	1594	28	obsever	obsever	IN
37894	1594	29	=	=	SYM
37894	1594	30	>	>	XX
37894	1594	31	observer	observer	NN
37894	1594	32	419	419	CD
37894	1594	33	Morover	Morover	NNP
37894	1594	34	=	=	SYM
37894	1594	35	>	>	XX
37894	1594	36	Moreover	moreover	RB
37894	1594	37	425	425	CD
37894	1594	38	Mississippii	mississippii	NN
37894	1594	39	=	=	NFP
37894	1594	40	>	>	XX
37894	1594	41	Mississippi	Mississippi	NNP
37894	1594	42	425	425	CD
37894	1594	43	a	a	NN
37894	1594	44	=	=	:
37894	1594	45	>	>	XX
37894	1594	46	as	as	IN
37894	1594	47	430	430	CD
37894	1594	48	at	at	IN
37894	1594	49	=	=	SYM
37894	1594	50	>	>	XX
37894	1594	51	and	and	CC
37894	1594	52	431	431	CD
37894	1594	53	inserted	insert	VBD
37894	1594	54	"	"	``
37894	1594	55	a	a	DT
37894	1594	56	"	"	''
37894	1594	57	(	(	-LRB-
37894	1594	58	"	"	''
37894	1594	59	...	...	:
37894	1594	60	traveling	travel	VBG
37894	1594	61	along	along	IN
37894	1594	62	a	a	DT
37894	1594	63	certain	certain	JJ
37894	1594	64	topographic	topographic	JJ
37894	1594	65	feature	feature	NN
37894	1594	66	...	...	:
37894	1594	67	"	"	''
37894	1594	68	)	)	-RRB-
37894	1594	69	442	442	CD
37894	1594	70	concensus	concensu	NNS
37894	1594	71	=	=	SYM
37894	1594	72	>	>	XX
37894	1594	73	consensus	consensus	NN
37894	1594	74	472	472	CD
37894	1594	75	Stephens	Stephens	NNPS
37894	1594	76	,	,	,
37894	1594	77	Loyd	Loyd	NNP
37894	1594	78	A.	A.	NNP
37894	1595	1	=	=	NFP
37894	1595	2	>	>	XX
37894	1595	3	Stevens	Stevens	NNP
37894	1595	4	,	,	,
37894	1595	5	Lloyd	Lloyd	NNP
37894	1595	6	A.	A.	NNP