ruffed grouse vs Bonasa umbellus

ruffed grouse and Bonasa umbellus both are nouns.

Word	Noun	Adjective	Verb	Adverb
ruffed grouse	Yes	No	No	No
Bonasa umbellus	Yes	No	No	No

As nouns, ruffed grouse and Bonasa umbellus are synonyms defined as:

ruffed grouse and Bonasa umbellus: valued as a game bird in eastern United States and Canada

Other synonyms of ruffed grouse include partridge.

ruffed grouse (noun)	Bonasa umbellus (noun)
valued as a game bird in eastern United States and Canada	valued as a game bird in eastern United States and Canada