honeycreeper vs oscine

honeycreeper and oscine both are nouns.

Word	Noun	Adjective	Verb	Adverb
honeycreeper	Yes	No	No	No
oscine	Yes	Yes	No	No

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

honeycreeper: small bright-colored tropical American songbird with a curved bill for sucking nectar
oscine: passerine bird having specialized vocal apparatus

Other hypernyms of honeycreeper include oscine bird.

honeycreeper (noun)	oscine (noun)
small bright-colored tropical American songbird with a curved bill for sucking nectar	passerine bird having specialized vocal apparatus
small to medium-sized finches of the Hawaiian islands

honeycreeper (adjective)	oscine (adjective)
	of or relating to the songbirds