Centrocercus urophasianus vs sage grouse

Centrocercus urophasianus and sage grouse both are nouns.

Word	Noun	Adjective	Verb	Adverb
Centrocercus urophasianus	Yes	No	No	No
sage grouse	Yes	No	No	No

As nouns, Centrocercus urophasianus and sage grouse are synonyms defined as:

Centrocercus urophasianus and sage grouse: large grouse of sagebrush regions of North America

Other synonyms of Centrocercus urophasianus include sage hen.

Centrocercus urophasianus (noun)	sage grouse (noun)
large grouse of sagebrush regions of North America	large grouse of sagebrush regions of North America