Casuaridae vs bird family

Casuaridae and bird family both are nouns.

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

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

Casuaridae: a family of large ostrich-like birds including cassowaries
bird family: a family of warm-blooded egg-laying vertebrates characterized by feathers and forelimbs modified as wings

Casuaridae (noun)	bird family (noun)
a family of large ostrich-like birds including cassowaries	a family of warm-blooded egg-laying vertebrates characterized by feathers and forelimbs modified as wings