genus Accipiter vs bird genus

genus Accipiter and bird genus both are nouns.

Word	Noun	Adjective	Verb	Adverb
genus Accipiter	Yes	No	No	No
bird genus	Yes	No	No	No

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

genus Accipiter (noun)	bird genus (noun)
type genus of the family Accipitridae	a genus of birds