Athene vs bird genus

Athene and bird genus both are nouns.

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

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

Athene: a genus of Strigidae containing the spotted owlet, little owl, forest owlet, and burrowing owl (Athene)
bird genus: a genus of birds

Athene (noun)	bird genus (noun)
a genus of Strigidae containing the spotted owlet, little owl, forest owlet, and burrowing owl (Athene)	a genus of birds
(Greek mythology) goddess of wisdom and useful arts and prudent warfare; guardian of Athens; identified with Roman Minerva