moorfowl vs red grouse

moorfowl and red grouse both are nouns.

Word	Noun	Adjective	Verb	Adverb
moorfowl	Yes	No	No	No
red grouse	Yes	No	No	No

As nouns, moorfowl and red grouse are synonyms defined as:

moorfowl and red grouse: reddish-brown grouse of upland moors of Great Britain

Other synonyms of moorfowl include Lagopus scoticus, moor-bird, moorbird, moorgame.

moorfowl (noun)	red grouse (noun)
reddish-brown grouse of upland moors of Great Britain	reddish-brown grouse of upland moors of Great Britain