...But it is not the same as that which has served to preserve the rook and made it so common... 
W. H. Hudson 「Birds in Town and Village」
...Clearly,a Rook would have done me a service by uprooting the first lettuce,and capturing its destroyer...
Rev. C. A. Johns 「British Birds in their Haunts」
...Individually the rook is stamped unmistakablyby the bald patch on the face, where thefeathers have come away round the base ofthe beak...
Frederick G. Aflalo 「Birds in the Calendar」
...Even artificial nests, with suitable suppliesof food, have succeeded, and it seems thatthe rook is nowhere a very difficult neighbourto attract and establish...
Frederick G. Aflalo 「Birds in the Calendar」
...On the one hand, it seems undeniablethat the rook eats grain and potatoshoots...
Frederick G. Aflalo 「Birds in the Calendar」
...It is only when the rook in his turn gets too numerous thathe needs a similar check...
Various 「Natural History in Anecdote」
...Bernard has described the interesting way in which the Rook hunts voles or field-mice in Thuringia...
Frédéric Houssay 「The Industries of Animals」
ランダム例文：
commodity precursor Slocum
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