redbird vs Cardinalis cardinalis

redbird and Cardinalis cardinalis both are nouns.

Word	Noun	Adjective	Verb	Adverb
redbird	Yes	No	No	No
Cardinalis cardinalis	Yes	No	No	No

As nouns, redbird and Cardinalis cardinalis are synonyms defined as:

redbird and Cardinalis cardinalis: crested thick-billed North American finch having bright red plumage in the male

Other synonyms of redbird include cardinal, cardinal grosbeak, Richmondena Cardinalis.

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