yellowhammer vs yellow bunting

yellowhammer and yellow bunting both are nouns.

Word	Noun	Adjective	Verb	Adverb
yellowhammer	Yes	No	No	No
yellow bunting	Yes	No	No	No

As nouns, yellowhammer and yellow bunting are synonyms defined as:

yellowhammer and yellow bunting: European bunting the male being bright yellow

Other synonyms of yellowhammer include Emberiza citrinella.

yellowhammer (noun)	yellow bunting (noun)
European bunting the male being bright yellow	European bunting the male being bright yellow
large flicker of eastern North America with a red neck and yellow undersurface to wings and tail