goatsucker vs caprimulgid

goatsucker and caprimulgid both are nouns.

Word	Noun	Adjective	Verb	Adverb
goatsucker	Yes	No	No	No
caprimulgid	Yes	No	No	No

As nouns, goatsucker and caprimulgid are synonyms defined as:

goatsucker and caprimulgid: mainly crepuscular or nocturnal nonpasserine birds with mottled greyish-brown plumage and large eyes; feed on insects

Other synonyms of goatsucker include nightjar.

goatsucker (noun)	caprimulgid (noun)
mainly crepuscular or nocturnal nonpasserine birds with mottled greyish-brown plumage and large eyes; feed on insects	mainly crepuscular or nocturnal nonpasserine birds with mottled greyish-brown plumage and large eyes; feed on insects