Psittacus erithacus vs African gray

Psittacus erithacus and African gray both are nouns.

Word	Noun	Adjective	Verb	Adverb
Psittacus erithacus	Yes	No	No	No
African gray	Yes	No	No	No

As nouns, Psittacus erithacus and African gray are synonyms defined as:

Psittacus erithacus and African gray: commonly domesticated grey parrot with red-and-black tail and white face; native to equatorial Africa

Other synonyms of Psittacus erithacus include African grey.

Psittacus erithacus (noun)	African gray (noun)
commonly domesticated grey parrot with red-and-black tail and white face; native to equatorial Africa	commonly domesticated grey parrot with red-and-black tail and white face; native to equatorial Africa