firebird vs scarlet tanager

firebird and scarlet tanager both are nouns.

Word	Noun	Adjective	Verb	Adverb
firebird	Yes	No	No	No
scarlet tanager	Yes	No	No	No

As nouns, firebird and scarlet tanager are synonyms defined as:

firebird and scarlet tanager: the male is bright red with black wings and tail

Other synonyms of firebird include Piranga olivacea, redbird.

firebird (noun)	scarlet tanager (noun)
eastern subspecies of northern oriole	the male is bright red with black wings and tail
the male is bright red with black wings and tail
tropical American flycatcher found as far north as southern Texas and Arizona; adult male has bright scarlet and black plumage