white-bellied swallow vs Iridoprocne bicolor

white-bellied swallow and Iridoprocne bicolor both are nouns.

Word	Noun	Adjective	Verb	Adverb
white-bellied swallow	Yes	No	No	No
Iridoprocne bicolor	Yes	No	No	No

As nouns, white-bellied swallow and Iridoprocne bicolor are synonyms defined as:

white-bellied swallow and Iridoprocne bicolor: bluish-green-and-white North American swallow; nests in tree cavities

Other synonyms of white-bellied swallow include tree swallow.

white-bellied swallow (noun)	Iridoprocne bicolor (noun)
bluish-green-and-white North American swallow; nests in tree cavities	bluish-green-and-white North American swallow; nests in tree cavities