... 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」
...The butterflies I have seen in these wonderful migrations inCeylon were mostly Callidryas Hilariæ, C...
J. Emerson Tennent 「Sketches of the Natural History of Ceylon」
...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」
...--Whole of North America, breeding inthe Arctic regions, and wintering south of theUnited States, most abundant in the eastern partsof the United States during migrations...
Chester A. Reed 「The Bird Book」
...This species is now regarded asrare on the North Atlantic coast during migrations, while in the interior it ismore abundant than the last species...
Chester A. Reed 「The Bird Book」
...They are very local in their distributionboth during migrations and in their breedinggrounds...
Chester A. Reed 「The Bird Book」
...They are quite abundant in New England in fall migrations,being found in swampy thickets...
Chester A. Reed 「The Bird Book」
...Among the insects such migrations have beenfrequently noticed, and the phenomenon has apparentlybeen observed oftener among the butterflies than in anyother group...
Clarence M. Weed 「Butterflies Worth Knowing」
...
Tordoff points out, also, that the irregular, erratic migrations ofthe New World Carduelinae are unlike the more regular migrationsof the richmondenines and emberizines...
William B. Stallcup 「Myology and Serology of the Avian Family Fringillidae」
...It is mostoften seen following the coast-line during migrations whereit takes toll of Ducks and shore-birds...
Frank M. Chapman 「What Bird is That?」
...This is a fresh-water representative of the Sharp-tailwhich nests in the prairie sloughs of the interior and reachesthe Atlantic coast during its migrations and in the winter...
Frank M. Chapman 「What Bird is That?」
...Its song, heard only onits migrations up the Mississippi Valley and on its nestingground, has been described as resembling that of both theOven-bird and Maryland Yellow-throat...
Frank M. Chapman 「What Bird is That?」
...During its spring and fall migrations only is it at allcommon about the elms and maples that men have planted...
Neltje Blanchan 「Birds Every Child Should Know」
...Their migrations are comparatively short when undertaken atall...
Neltje Blanchan 「Birds Every Child Should Know」
...It probably visited Europe as early as the beginning of the Christianera, and since then the migrations of the people from the Far East have fromtime to time introduced the disease...
U.S. Department of Agriculture 「Special Report on Diseases of Cattle」
...During their migrations, before they reach the back, theyoung warbles spend a considerable period in the walls of the esophagus, or gullet, and maybe found in this location as early as August 15...
U.S. Department of Agriculture 「Special Report on Diseases of Cattle」
...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」
...Fathers of his family that had accomplished many migrations appearedsmall beside him, and coats that had been shed season after seasonseemed dull compared with his...
Gene Stratton-Porter 「The Song of the Cardinal」
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