family Turdidae vs bird family

family Turdidae and bird family both are nouns.

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

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

family Turdidae: thrushes; in some classifications considered a subfamily (Turdinae) of the family Muscicapidae
bird family: a family of warm-blooded egg-laying vertebrates characterized by feathers and forelimbs modified as wings

family Turdidae (noun)	bird family (noun)
thrushes; in some classifications considered a subfamily (Turdinae) of the family Muscicapidae	a family of warm-blooded egg-laying vertebrates characterized by feathers and forelimbs modified as wings