Caprimulgus carolinensis vs chuck-will's-widow

Caprimulgus carolinensis and chuck-will's-widow both are nouns.

Word	Noun	Adjective	Verb	Adverb
Caprimulgus carolinensis	Yes	No	No	No
chuck-will's-widow	Yes	No	No	No

As nouns, Caprimulgus carolinensis and chuck-will's-widow are synonyms defined as:

Caprimulgus carolinensis and chuck-will's-widow: large whippoorwill-like bird of the southern United States

Caprimulgus carolinensis (noun)	chuck-will's-widow (noun)
large whippoorwill-like bird of the southern United States	large whippoorwill-like bird of the southern United States