... When first he came upon them they were moving slowly butsteadily southward in one of those periodic migrations the reasons forwhich the baboon himself is best able to explain... 
Edgar Rice Burroughs 「The Son of Tarzan」
...“Of course; for the end of all these invasions and migrations must be in such a sacrifice of human life as to afford sustenance and the means of subsistence to those who remain,” observed the Major...
Captain Frederick Marryat 「The Mission; or Scenes in Africa」
...As we near historic times the migrations of men became more frequentfrom Asia and from Europe, and in Africa came movementsand minglings which give to the whole of Africa a distinct mulattocharacter...
W.E.B. Du Bois 「The Negro」
...This species,which is also known as the Sprig-tail, is verycommon in the United States in thespring and fall migrations...
Chester A. Reed 「The Bird Book」
...These little Sandpipers areabundant during the migrations either in marshesor on beaches...
Chester A. Reed 「The Bird Book」
...This species is apparently not as common or ismore locally distributed during migrations thanis the Marbled Godwit...
Chester A. Reed 「The Bird Book」
...Casuallyfound on the South Atlantic coast during migrations...
Chester A. Reed 「The Bird Book」
...The rarerspecies may be less hardy, have more enemies, be exposed to moreperils in their long migrations, &c...
P. L. Sclater 「Argentine Ornithology, Volume I (of 2)」
...Though by no means a rare bird, the Whimbrel is of far less commonoccurrence than the Curlew, and is seen only at two periodsof the year, in May and August, when performing its migrations...
Rev. C. A. Johns 「British Birds in their Haunts」
...Inthe fall, just before the winter rains begin, they commencetheir migrations down again to the foothills,where they remain until the following spring...
Harry Thom Payne 「Game Birds and Game Fishes of the Pacific Coast」
...The widgeon begins its migrations early in the falland great numbers find their way as far south as theCoast marshes and lower lakes of Mexico...
Harry Thom Payne 「Game Birds and Game Fishes of the Pacific Coast」
...The cackling geese are commonly foundin flocks of the white geese, both in their feeding andtheir migrations...
Harry Thom Payne 「Game Birds and Game Fishes of the Pacific Coast」
...They are commonly seen, bothin feeding and in their migrations, mixed in the flocksof the snow geese...
Harry Thom Payne 「Game Birds and Game Fishes of the Pacific Coast」
...There is perhaps lessinformation available concerning the migrations of the wild Reindeer ofthe Old World than concerning the movements of the Barren Ground Caribouof North America (cf...
Francis Harper 「The Barren Ground Caribou of Keewatin」
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