oriole vs blackbird

oriole and blackbird both are nouns.

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

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

oriole: American songbird; male is black and orange or yellow
blackbird: any bird of the family Icteridae whose male is black or predominantly black

oriole (noun)	blackbird (noun)
American songbird; male is black and orange or yellow	any bird of the family Icteridae whose male is black or predominantly black
mostly tropical songbird; the male is usually bright orange and black	common black European thrush