weaver finch vs oscine bird

weaver finch and oscine bird both are nouns.

Word	Noun	Adjective	Verb	Adverb
weaver finch	Yes	No	No	No
oscine bird	Yes	No	No	No

As nouns, oscine bird is a hypernym of weaver finch; that is, oscine bird is a word with a broader meaning than weaver finch:

weaver finch: finch-like African and Asian colonial birds noted for their elaborately woven nests
oscine bird: passerine bird having specialized vocal apparatus

Other hypernyms of weaver finch include oscine.

weaver finch (noun)	oscine bird (noun)
finch-like African and Asian colonial birds noted for their elaborately woven nests	passerine bird having specialized vocal apparatus