genus Tyto vs bird genus

genus Tyto and bird genus both are nouns.

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

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

genus Tyto (noun)	bird genus (noun)
type and only genus of the family Tytonidae	a genus of birds