yellowhammer vs Colaptes auratus

yellowhammer and Colaptes auratus both are nouns.

Word	Noun	Adjective	Verb	Adverb
yellowhammer	Yes	No	No	No
Colaptes auratus	Yes	No	No	No

As nouns, yellowhammer and Colaptes auratus are synonyms defined as:

yellowhammer and Colaptes auratus: large flicker of eastern North America with a red neck and yellow undersurface to wings and tail

Other synonyms of yellowhammer include yellow-shafted flicker.

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