Fulica americana vs American coot

Fulica americana and American coot both are nouns.

Word	Noun	Adjective	Verb	Adverb
Fulica americana	Yes	No	No	No
American coot	Yes	No	No	No

As nouns, Fulica americana and American coot are synonyms defined as:

Other synonyms of Fulica americana include marsh hen, mud hen, water hen.

Fulica americana (noun)	American coot (noun)
a coot found in North America	a coot found in North America