hedge sparrow vs Prunella modularis

hedge sparrow and Prunella modularis both are nouns.

Word	Noun	Adjective	Verb	Adverb
hedge sparrow	Yes	No	No	No
Prunella modularis	Yes	No	No	No

As nouns, hedge sparrow and Prunella modularis are synonyms defined as:

Other synonyms of hedge sparrow include dunnock, sparrow.

hedge sparrow (noun)	Prunella modularis (noun)
small brownish European songbird	small brownish European songbird