| The Columbia Encyclopedia, Sixth Edition. 2001-07. |
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| rook |
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| term used for a common Eurasian bird (genus Corvus) of the family Corvidae (Crow family), smaller than the American crow. The jackdaw is a European species of the genus. Rooks nest in large colonies, whence the term rookery. They are classified in the phylum Chordata, subphylum Vertebrata, class Aves, order Passeriformes, family Corvidae. |
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| | | The Columbia Encyclopedia, Sixth Edition. Copyright © 2007 Columbia University Press. |
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