Strix aluco vs tawny owl

Strix aluco and tawny owl both are nouns.

Word	Noun	Adjective	Verb	Adverb
Strix aluco	Yes	No	No	No
tawny owl	Yes	No	No	No

As nouns, Strix aluco and tawny owl are synonyms defined as:

Strix aluco and tawny owl: reddish-brown European owl having a round head with black eyes

Strix aluco (noun)	tawny owl (noun)
reddish-brown European owl having a round head with black eyes	reddish-brown European owl having a round head with black eyes