hoopoe vs Upupa epops

hoopoe and Upupa epops both are nouns.

Word	Noun	Adjective	Verb	Adverb
hoopoe	Yes	No	No	No
Upupa epops	Yes	No	No	No

As nouns, Upupa epops is a hyponym of hoopoe; that is, Upupa epops is a word with a more specific, narrower meaning than hoopoe:

hoopoe: any of several crested Old World birds with a slender downward-curved bill
Upupa epops: pinkish-brown hoopoe with black-and-white wings

Other hyponyms of hoopoe include Euopean hoopoe.

hoopoe (noun)	Upupa epops (noun)
any of several crested Old World birds with a slender downward-curved bill	pinkish-brown hoopoe with black-and-white wings