oriole vs reedbird

oriole and reedbird both are nouns.

Word	Noun	Adjective	Verb	Adverb
oriole	Yes	No	No	No
reedbird	Yes	No	No	No

As nouns, reedbird is a hyponym of oriole; that is, reedbird is a word with a more specific, narrower meaning than oriole:

oriole (noun)	reedbird (noun)
American songbird; male is black and orange or yellow	migratory American songbird
mostly tropical songbird; the male is usually bright orange and black	small European warbler that breeds among reeds and wedges and winters in Africa