Hyla regilla vs Pacific tree toad

Hyla regilla and Pacific tree toad both are nouns.

Word	Noun	Adjective	Verb	Adverb
Hyla regilla	Yes	No	No	No
Pacific tree toad	Yes	No	No	No

As nouns, Hyla regilla and Pacific tree toad are synonyms defined as:

Hyla regilla and Pacific tree toad: the most commonly heard frog on the Pacific coast of America

Hyla regilla (noun)	Pacific tree toad (noun)
the most commonly heard frog on the Pacific coast of America	the most commonly heard frog on the Pacific coast of America