...CORVIDAE (5), CROWS, Rook, Raven, Jackdaw,Magpie (Br... 
John Albert Leach 「An Australian Bird Book」
...The old rook was simply expressing the old truth, that life was worth living...
W. H. Hudson 「Birds in Town and Village」
...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」
... the Rook insome green rookery of the Old World...
Various 「Birds Illustrated by Color Photograph [April, 1897]」
...They have also been observed to chase and kill small birds, which,as near starvation as themselves, have been unable to fly beyondtheir reach, and I have even seen a Rook catch a small fish...
Rev. C. A. Johns 「British Birds in their Haunts」
...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」
...The most important problem however inconnection with the rook is the precise extentto which the bird is the farmer's enemy or hisfriend...
Frederick G. Aflalo 「Birds in the Calendar」
...Similar treatment ofother wild birds would in time produce thesame result, and even the suspicious starlingand stand-off rook might be taught to forgettheir fear of us...
Frederick G. Aflalo 「Birds in the Calendar」
...In the midst ofthese playful exertions it unfortunately happened that one rook, by asudden turn, struck his beak against the wing of another...
Percy J. Billinghurst 「A Hundred Anecdotes of Animals」
...Further differencesare found in the feathering of the head and neck of thesebirds, that of the crow being much more completely coveredthan that of the rook...
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」
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