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Canada jay:see jayjay,
common name for a number of birds of the family Corvidae (crows and jays), found in Europe, Asia, and the Americas. The best-known representatives in America are the blue jay, Cyanocitta cristata, and the Canada jay. The Canada jay is gray, about 12 in.
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a large common jay of North America, Perisoreus canadensis, with a grey body, and a white-and-black crestless head