catbird vs Dumetella carolinensis

catbird and Dumetella carolinensis both are nouns.

Word	Noun	Adjective	Verb	Adverb
catbird	Yes	No	No	No
Dumetella carolinensis	Yes	No	No	No

As nouns, catbird and Dumetella carolinensis are synonyms defined as:

catbird and Dumetella carolinensis: North American songbird whose call resembles a cat's mewing

Other synonyms of catbird include gray catbird, grey catbird.

catbird (noun)	Dumetella carolinensis (noun)
North American songbird whose call resembles a cat's mewing	North American songbird whose call resembles a cat's mewing
any of various birds of the Australian region whose males build ornamented structures resembling bowers in order to attract females