yellow bunting vs Emberiza citrinella

yellow bunting and Emberiza citrinella both are nouns.

Word	Noun	Adjective	Verb	Adverb
yellow bunting	Yes	No	No	No
Emberiza citrinella	Yes	No	No	No

As nouns, yellow bunting and Emberiza citrinella are synonyms defined as:

yellow bunting and Emberiza citrinella: European bunting the male being bright yellow

Other synonyms of yellow bunting include yellowhammer.

yellow bunting (noun)	Emberiza citrinella (noun)
European bunting the male being bright yellow	European bunting the male being bright yellow