honey eater vs oscine bird

honey eater and oscine bird both are nouns.

Word	Noun	Adjective	Verb	Adverb
honey eater	Yes	No	No	No
oscine bird	Yes	No	No	No

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

honey eater: Australasian bird with tongue and bill adapted for extracting nectar
oscine bird: passerine bird having specialized vocal apparatus

Other hypernyms of honey eater include oscine.

honey eater (noun)	oscine bird (noun)
Australasian bird with tongue and bill adapted for extracting nectar	passerine bird having specialized vocal apparatus