red grouse

from The American Heritage® Dictionary of the English Language, 5th Edition.

• noun A grouse (Lagopus lagopus subsp. scotica) of the British Isles that has chestnut plumage and inhabits open fields.

from Wiktionary, Creative Commons Attribution/Share-Alike License.

• noun A medium-sized bird, Lagopus lagopus scotica, of the grouse family, found in heather moorland in Great Britain and Ireland.

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

• noun reddish-brown grouse of upland moors of Great Britain