Snow·bird n. Zool. (a) An arctic finch (Plectrophenax nivalis syn. Plectrophanes nivalis) common, in winter, both in Europe and the United States, and often appearing in large flocks during snowstorms. It is partially white, but variously marked with chestnut and brown. Called also snow bunting, snowflake, snowfleck, and snowflight. (b) Any finch of the genus Junco which appears in flocks in winter time, especially Junco hyemalis in the Eastern United States; -- called also blue snowbird. See Junco. (c) The fieldfare. [Prov. Eng.]
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Junco hyemalis
n : common North American junco having gray plumage and eyes
with dark brown irises [syn: dark-eyed junco, slate-colored
junco]