guacharo vs caprimulgiform bird

guacharo and caprimulgiform bird both are nouns.

Word	Noun	Adjective	Verb	Adverb
guacharo	Yes	No	No	No
caprimulgiform bird	Yes	No	No	No

As nouns, caprimulgiform bird is a hypernym of guacharo; that is, caprimulgiform bird is a word with a broader meaning than guacharo:

guacharo: nocturnal fruit-eating bird of South America that has fatty young yielding an oil that is used instead of butter
caprimulgiform bird: long-winged nonpasserine birds

guacharo (noun)	caprimulgiform bird (noun)
nocturnal fruit-eating bird of South America that has fatty young yielding an oil that is used instead of butter	long-winged nonpasserine birds