roadrunner vs cuckoo

roadrunner and cuckoo both are nouns.

Word	Noun	Adjective	Verb	Adverb
roadrunner	Yes	No	No	No
cuckoo	Yes	No	Yes	No

As nouns, cuckoo is a hypernym of roadrunner; that is, cuckoo is a word with a broader meaning than roadrunner:

roadrunner: speedy largely terrestrial bird found from California and Mexico to Texas
cuckoo: any of numerous European and North American birds having pointed wings and a long tail

roadrunner (noun)	cuckoo (noun)
speedy largely terrestrial bird found from California and Mexico to Texas	any of numerous European and North American birds having pointed wings and a long tail
	a man who is a stupid incompetent fool

roadrunner (verb)	cuckoo (verb)
	repeat monotonously, like a cuckoo repeats his call