Coracias garrulus vs European roller

Coracias garrulus and European roller both are nouns.

Word	Noun	Adjective	Verb	Adverb
Coracias garrulus	Yes	No	No	No
European roller	Yes	No	No	No

As nouns, Coracias garrulus and European roller are synonyms defined as:

Coracias garrulus and European roller: common European blue-and-green roller with a reddish-brown back

Coracias garrulus (noun)	European roller (noun)
common European blue-and-green roller with a reddish-brown back	common European blue-and-green roller with a reddish-brown back