redwing vs red-winged blackbird

redwing and red-winged blackbird both are nouns.

Word	Noun	Adjective	Verb	Adverb
redwing	Yes	No	No	No
red-winged blackbird	Yes	No	No	No

As nouns, redwing and red-winged blackbird are synonyms defined as:

redwing and red-winged blackbird: North American blackbird with scarlet patches on the wings

Other synonyms of redwing include Agelaius phoeniceus.

redwing (noun)	red-winged blackbird (noun)
small European thrush having reddish flanks	North American blackbird with scarlet patches on the wings
North American blackbird with scarlet patches on the wings