catbird vs oscine bird

catbird and oscine bird both are nouns.

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

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

Other hypernyms of catbird include oscine.

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

catbird: any of various birds of the Australian region whose males build ornamented structures resembling bowers in order to attract females
oscine bird: passerine bird having specialized vocal apparatus

Other hypernyms of catbird include oscine.

catbird (noun)	oscine bird (noun)
North American songbird whose call resembles a cat's mewing	passerine bird having specialized vocal apparatus
any of various birds of the Australian region whose males build ornamented structures resembling bowers in order to attract females