ruffed grouse(redirected from Bonasa umbellus)
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Related to Bonasa umbellus: ruffed grouse
ruffed grouse:see grousegrouse,
common name for a game bird of the colder parts of the Northern Hemisphere. There are about 18 species. Grouse are henlike terrestrial birds, protectively plumaged in shades of red, brown, and gray.
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