English sparrow vs Passer domesticus

English sparrow and Passer domesticus both are nouns.

Word	Noun	Adjective	Verb	Adverb
English sparrow	Yes	No	No	No
Passer domesticus	Yes	No	No	No

As nouns, English sparrow and Passer domesticus are synonyms defined as:

English sparrow and Passer domesticus: small hardy brown-and-grey bird native to Europe

Other synonyms of English sparrow include house sparrow.

English sparrow (noun)	Passer domesticus (noun)
small hardy brown-and-grey bird native to Europe	small hardy brown-and-grey bird native to Europe