thrush vs oscine

thrush and oscine both are nouns.

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

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

thrush: songbirds characteristically having brownish upper plumage with a spotted breast
oscine: passerine bird having specialized vocal apparatus

Other hypernyms of thrush include oscine bird.

thrush (noun)	oscine (noun)
songbirds characteristically having brownish upper plumage with a spotted breast	passerine bird having specialized vocal apparatus
a woman who sings popular songs
candidiasis of the oral cavity; seen mostly in infants or debilitated adults

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