...The black laborers became deeply dissatisfied under this systemand began to migrate from the country to the cities, where there wasan increasing demand for labor... 
W.E.B. Du Bois 「The Negro」
... No one but the most superficial will claimthat Jewish girls migrate to strange lands, unless they have some tieor relation that brings them there...
Emma Goldman 「Anarchism and Other Essays」
...We have seen the moose migrate into, and permanentlyoccupy, an extensive area that previously was destitute of thatspecies...
William T. Hornaday 「Our Vanishing Wild Life」
...Its familiar"honk" has long been regarded as the signal ofthe coming of spring, and the familiar V-shapedformation in which the flocks migrate is alwaysan object of interest to everyone...
Chester A. Reed 「The Bird Book」
...They migrate throughthe United States in largeflocks, usually accompanied by White-throatedor Fox Sparrows...
Chester A. Reed 「The Bird Book」
...Bear forty years ago would migrate then as they do now...
Eldred Nathaniel Woodcock 「Fifty Years a Hunter and Trapper」
...In summer when the sheep are driven up into the mountains, the coyotes migrate to those sections and kill sheep whenever the opportunity is presented...
A. R. (Arthur Robert) Harding 「Wolf and Coyote Trapping」
...And yet Iam not prepared to say that it does not migrate, as I have found that inspring it all at once becomes very abundant, while in the cold seasonit is rarely seen...
P. L. Sclater 「Argentine Ornithology, Volume I (of 2)」
...After theyoung are reared, several species migrate northward and are found offour Pacific coast...
Frank M. Chapman 「Color Key to North American Birds」
...Inthis stage the larvæ migrate up grass stalks (fig...
U.S. Department of Agriculture 「Special Report on Diseases of Cattle」
...The majority of the kites appear to migrate from the Nilgiris duringthe south-west monsoon...
Douglas Dewar 「Birds of the Indian Hills」
...Does not migrate, but is usually resident in the place where it canbest provide for itself and family...
Lenore Elizabeth Mulets 「Stories of Birds」
...It appearsto migrate to Bengal, the United Provinces, the Punjab and Sindshortly before the monsoon bursts, but it is said to arrive inNepal as early as April...
Douglas Dewar 「A Bird Calendar for Northern India」
...They are mostnumerous in winter, as a considerable number migrate southwardsin October, but a great many remain with us all the year,preferring those districts where there are fir-plantations...
Rev. C. A. Johns 「British Birds in their Haunts」
...In North Britain, at the approachof severe weather, they flock together and migrate southwards...
Rev. C. A. Johns 「British Birds in their Haunts」
...They rarely migrate into California, though theyventure much to the north of us in a northeastern direction,reaching the shores of the Great Salt Lake,during the breeding season...
Harry Thom Payne 「Game Birds and Game Fishes of the Pacific Coast」
...Flieswill lay their eggs on the manure as usual, but the maggots, whenthey have finished feeding and begin to migrate, crawl out of themanure, drop into the water below, and are drowned...
L. O. Howard and F. C. Bishopp 「The House Fly and How to Suppress It」
...Some animals remain aslate as November, but the majority migrate south to temperateor tropical waters in the early fall...
Stephen Leatherwood 「Whales, Dolphins, and Porpoises of the Western North Atlantic」
...Some migrate as far north as Hudson Strait, wherethey remain until the freeze in October, November, orDecember...
Stephen Leatherwood 「Whales, Dolphins, and Porpoises of the Western North Atlantic」
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