yellow-bellied sapsucker vs Sphyrapicus varius

yellow-bellied sapsucker and Sphyrapicus varius both are nouns.

Word	Noun	Adjective	Verb	Adverb
yellow-bellied sapsucker	Yes	No	No	No
Sphyrapicus varius	Yes	No	No	No

As nouns, yellow-bellied sapsucker and Sphyrapicus varius are synonyms defined as:

yellow-bellied sapsucker and Sphyrapicus varius: eastern North American sapsucker having a pale yellow abdomen

yellow-bellied sapsucker (noun)	Sphyrapicus varius (noun)
eastern North American sapsucker having a pale yellow abdomen	eastern North American sapsucker having a pale yellow abdomen