redbird vs Piranga olivacea

redbird and Piranga olivacea both are nouns.

Word	Noun	Adjective	Verb	Adverb
redbird	Yes	No	No	No
Piranga olivacea	Yes	No	No	No

As nouns, redbird and Piranga olivacea are synonyms defined as:

redbird and Piranga olivacea: the male is bright red with black wings and tail

Other synonyms of redbird include firebird, scarlet tanager.

redbird (noun)	Piranga olivacea (noun)
crested thick-billed North American finch having bright red plumage in the male	the male is bright red with black wings and tail
the male is bright red with black wings and tail