...This encouraged us to think we might find other game soon, for the hartebeeste is a gregarious animal... 
Stewart Edward White 「African Camp Fires」
...The same spider is found in the low country near Galle, but thereit shows no tendency to become gregarious...
J. Emerson Tennent 「Sketches of the Natural History of Ceylon」
...It thus happensthat, though the gregarious instincts of elephants prompt them toform large gatherings, if circumstances necessitate it a herd breaksup under several leaders...
Robert A. Sterndale 「Natural History of the Mammalia of India and Ceylon」
...None of them are gregarious, as in the case of dogs and wolves...
Robert A. Sterndale 「Natural History of the Mammalia of India and Ceylon」
...They are all gregarious, feeding on the wing, and in general migratory...
William Swainson 「Zoological Illustrations, Volume I」
...Wildducks are gregarious in their habits,and generally migrate in large flocks...
Robert Jennings 「Sheep, Swine, and Poultry」
...As is common with all gregarious animals which havelong acknowledged the authority of their natural herdsmen, the dominantmales of their tribe, these creatures lent themselves to domestication...
Nathaniel Southgate Shaler 「Domesticated Animals」
...It was more exposed than other birds to these enemies owing to its gregarious and feeding habits in grasslands and the open country, also to its slower flight...
W. H. Hudson 「Birds in Town and Village」
...It lays its eggs in the holes of trees, and, except in thebreeding season, is more or less gregarious in its habits...
Rev. C. A. Johns 「British Birds in their Haunts」
...They are gregarious in habits, having been observed, both in Europe,their summer, and in Africa, their winter residence, to perch togetheron the branches of trees in small flocks...
Rev. C. A. Johns 「British Birds in their Haunts」
...Not stomachic in profile; far from cheerful in disposition; more or less lonely in habit; or, if gregarious, out of the way of men...
John Ruskin 「Love's Meinie」
...Whether it really was so in ourhuman sense, or whether it was simply an illustrationof the instinct of mutual support whichseems to prevail among gregarious birds, I knownot...
John Burroughs 「Bird Stories from Burroughs」
...Certain gregarious birds and fish whose colouring isprotective have a habit of showing their white bellies as they swerve onchanging their direction...
J. H. Fabre Bernard Miall 「Social Life in the Insect World」
...The caterpillars are gregarious, feeding under cover of a silken web...
W. S. Coleman 「British Butterfiles」
...The Barren Ground Caribou is a distinctly gregarious species...
Francis Harper 「The Barren Ground Caribou of Keewatin」
...The peccary, as already stated, is gregarious...
Mayne Reid 「The Hunters' Feast」
...The bison and buffalo, which were once so powerful on the plains ofNorth America, were protected by their gregarious habits, whichterrorised their enemies—the wolves...
Royal Dixon 「The Human Side of Animals」
...Certain things in animal life lead me to suspectthat animals have some means of communicationwith one another, especially the gregarious animals,that is quite independent of what we mean by language...
John Burroughs 「Ways of Nature」
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