whitetail vs Virginia deer

whitetail and Virginia deer both are nouns.

Word	Noun	Adjective	Verb	Adverb
whitetail	Yes	No	No	No
Virginia deer	Yes	No	No	No

As nouns, whitetail and Virginia deer are synonyms defined as:

whitetail and Virginia deer: common North American deer; tail has a white underside

Other synonyms of whitetail include Odocoileus Virginianus, white-tailed deer, white tail, whitetail deer.

whitetail (noun)	Virginia deer (noun)
common North American deer; tail has a white underside	common North American deer; tail has a white underside