genus Neophron vs bird genus

genus Neophron and bird genus both are nouns.

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

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

genus Neophron: a genus of Accipitridae containing the Egyptian vulture, also known as the white scavenger vulture or pharaoh's chicken (Neophron)
bird genus: a genus of birds

genus Neophron (noun)	bird genus (noun)
a genus of Accipitridae containing the Egyptian vulture, also known as the white scavenger vulture or pharaoh's chicken (Neophron)	a genus of birds