Virginia deer vs cervid

Virginia deer and cervid both are nouns.

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

As nouns, cervid is a hypernym of Virginia deer; that is, cervid is a word with a broader meaning than Virginia deer:

Virginia deer: common North American deer; tail has a white underside
cervid: distinguished from Bovidae by the male's having solid deciduous antlers

Other hypernyms of Virginia deer include deer.

Virginia deer (noun)	cervid (noun)
common North American deer; tail has a white underside	distinguished from Bovidae by the male's having solid deciduous antlers