Tetraonidae vs bird family

Tetraonidae and bird family both are nouns.

Word	Noun	Adjective	Verb	Adverb
Tetraonidae	Yes	No	No	No
bird family	Yes	No	No	No

As nouns, bird family is a hypernym of Tetraonidae; that is, bird family is a word with a broader meaning than Tetraonidae:

Tetraonidae: grouse
bird family: a family of warm-blooded egg-laying vertebrates characterized by feathers and forelimbs modified as wings

Tetraonidae (noun)	bird family (noun)
grouse	a family of warm-blooded egg-laying vertebrates characterized by feathers and forelimbs modified as wings