whinchat vs Saxicola rubetra

whinchat and Saxicola rubetra both are nouns.

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

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

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

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