Sitta canadensis vs red-breasted nuthatch

Sitta canadensis and red-breasted nuthatch both are nouns.

Word	Noun	Adjective	Verb	Adverb
Sitta canadensis	Yes	No	No	No
red-breasted nuthatch	Yes	No	No	No

As nouns, Sitta canadensis and red-breasted nuthatch are synonyms defined as:

Sitta canadensis and red-breasted nuthatch: bluish-grey nuthatch with reddish breast; of northern coniferous forests

Sitta canadensis (noun)	red-breasted nuthatch (noun)
bluish-grey nuthatch with reddish breast; of northern coniferous forests	bluish-grey nuthatch with reddish breast; of northern coniferous forests