- a North American grouse, Bonasa umbellus, having a tuft of black feathers on each side of the neck.
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
- a large North American grouse, Bonasa umbellus, having brown plumage with darker markings around the neck and a black-tipped fan-shaped tail