roadrunner vs Geococcyx californianus

roadrunner and Geococcyx californianus both are nouns.

Word	Noun	Adjective	Verb	Adverb
roadrunner	Yes	No	No	No
Geococcyx californianus	Yes	No	No	No

As nouns, roadrunner and Geococcyx californianus are synonyms defined as:

roadrunner and Geococcyx californianus: speedy largely terrestrial bird found from California and Mexico to Texas

Other synonyms of roadrunner include chaparral cock.

roadrunner (noun)	Geococcyx californianus (noun)
speedy largely terrestrial bird found from California and Mexico to Texas	speedy largely terrestrial bird found from California and Mexico to Texas