Ovis canadensis vs bighorn

Ovis canadensis and bighorn both are nouns.

Word	Noun	Adjective	Verb	Adverb
Ovis canadensis	Yes	No	No	No
bighorn	Yes	No	No	No

As nouns, Ovis canadensis and bighorn are synonyms defined as:

Ovis canadensis and bighorn: wild sheep of mountainous regions of western North America having massive curled horns

Other synonyms of Ovis canadensis include bighorn sheep, cimarron, Rocky Mountain bighorn, Rocky Mountain sheep.

Ovis canadensis (noun)	bighorn (noun)
wild sheep of mountainous regions of western North America having massive curled horns	wild sheep of mountainous regions of western North America having massive curled horns