ruffed grouse

a North American game bird (Bonasa umbellus) with neck feathers that can be extended into a ruff: also called partridge in the N U.S. and pheasant in the S U.S.

See ruffed grouse in American Heritage Dictionary 4

noun
A chickenlike North American game bird (Bonasa umbellus) having mottled brownish plumage and noted for the drumming sounds the male makes with its wings. Also called birch partridge.

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ruffed grouse

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