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ruffed grouse

noun
  1. a North American grouse, Bonasa umbellus, having a tuft of black feathers on each side of the neck.
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Origin of ruffed grouse

An Americanism dating back to 1745–55
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

British Dictionary definitions for ruffed grouse

ruffed grouse

noun
  1. a large North American grouse, Bonasa umbellus, having brown plumage with darker markings around the neck and a black-tipped fan-shaped tail
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Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012