... Before we came to the Orange River we saw the last portion of a migration of springbucks ('Gazella euchore', or tsepe)...
David Livingstone 「Missionary Travels and Researches in South Africa」
...“They will go directly on to the southward,” replied Swinton; “the migration of these animals is one of the most remarkable proofs of the fecundity of animal life...
Captain Frederick Marryat 「The Mission; or Scenes in Africa」
...Their migration commencedabout the end of the fourteenth century and was, as is usualin such cases, a scattered, straggling movement...
W.E.B. Du Bois 「The Negro」
...Thus we have between the years 1400 and 1900 a great periodof migration up to 1750, when Bushmen, Hottentot, Bantu, andDutch appeared in succession at Land's End...
W.E.B. Du Bois 「The Negro」
...The hundredsof Negro tongues or dialects in the north represent most probablythe result of war and migration and the breaking up of ancientcenters of culture...
W.E.B. Du Bois 「The Negro」
...The Colonization Society encouragedthis migration, and the Negroes themselves had organized the Canadianexodus...
W.E.B. Du Bois 「The Negro」
...The winter migration came from the Dakotas, and was believed to bedue to the extra severe winter, and the scarcity of food...
William T. Hornaday 「Our Vanishing Wild Life」
...It is theonly song to be heard in Italy at the time of the autum migration...
William T. Hornaday 「Our Vanishing Wild Life」
...
—The nighthawk, or bull-bat, also renders important service in the destruction of weevils, and catches them on the wing in considerable numbers, especially during its migration...
William T. Hornaday 「Our Vanishing Wild Life」
...As such migration is likely to happenwhenever a species becomes extremely abundant it probablyis Nature's way of providing for an extended foodsupply for the succeeding generations...
Clarence M. Weed 「Butterflies Worth Knowing」
...Its migration extendssouth to Buenos Ayres, where it is seen in woods and thickets in pairsor singly; but it is a rare bird, and I have been unable to find outanything about its nesting-habits...
P. L. Sclater 「Argentine Ornithology, Volume I (of 2)」
...From your text andreference books find other examples of migration...
Worrallo Whitney 「A Guide for the Study of Animals」
...A small stream west of the swamp seems to be used as a migration route to and from the swamp...
Ray D. Burkett 「Natural History of Cottonmouth Moccasin, Agkistrodon piscovorus (Reptilia)」
...Although June may be called the Month of Nests,nest-building begins long before the migration ends...
Frank M. Chapman 「What Bird is That?」
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