Saxicola rubetra vs whinchat

Saxicola rubetra and whinchat both are nouns.

Word	Noun	Adjective	Verb	Adverb
Saxicola rubetra	Yes	No	No	No
whinchat	Yes	No	No	No

As nouns, Saxicola rubetra and whinchat are synonyms defined as:

Saxicola rubetra and whinchat: brown-and-buff European songbird of grassy meadows

Saxicola rubetra (noun)	whinchat (noun)
brown-and-buff European songbird of grassy meadows	brown-and-buff European songbird of grassy meadows