red-breasted sapsucker vs Sphyrapicus varius ruber

red-breasted sapsucker and Sphyrapicus varius ruber both are nouns.

Word	Noun	Adjective	Verb	Adverb
red-breasted sapsucker	Yes	No	No	No
Sphyrapicus varius ruber	Yes	No	No	No

As nouns, red-breasted sapsucker and Sphyrapicus varius ruber are synonyms defined as:

red-breasted sapsucker and Sphyrapicus varius ruber: western North American sapsucker

red-breasted sapsucker (noun)	Sphyrapicus varius ruber (noun)
western North American sapsucker	western North American sapsucker