Passer domesticus vs house sparrow

Passer domesticus and house sparrow both are nouns.

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

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

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

Other synonyms of Passer domesticus include English sparrow.

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