red grouse

WordReference Random House Unabridged Dictionary of American English © 2025

red′ grouse′, 

1. Birds a grouse, Lagopus lagopus scoticus, of the British Isles, a subspecies of willow ptarmigan lacking white winter plumage.

• 1770–80

Collins Concise English Dictionary © HarperCollins Publishers::

red grouse noun

1. a reddish-brown grouse, Lagopus scoticus, of upland moors of Great Britain: an important game bird