blacktail deer vs Odocoileus hemionus columbianus

blacktail deer and Odocoileus hemionus columbianus both are nouns.

Word	Noun	Adjective	Verb	Adverb
blacktail deer	Yes	No	No	No
Odocoileus hemionus columbianus	Yes	No	No	No

As nouns, blacktail deer and Odocoileus hemionus columbianus are synonyms defined as:

blacktail deer and Odocoileus hemionus columbianus: mule deer of western Rocky Mountains

Other synonyms of blacktail deer include black-tailed deer, blacktail.

blacktail deer (noun)	Odocoileus hemionus columbianus (noun)
mule deer of western Rocky Mountains	mule deer of western Rocky Mountains