tanager vs oscine bird

tanager and oscine bird both are nouns.

Word	Noun	Adjective	Verb	Adverb
tanager	Yes	No	No	No
oscine bird	Yes	No	No	No

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

tanager: any of numerous New World woodland birds having brightly colored males
oscine bird: passerine bird having specialized vocal apparatus

Other hypernyms of tanager include oscine.

tanager (noun)	oscine bird (noun)
any of numerous New World woodland birds having brightly colored males	passerine bird having specialized vocal apparatus