redpoll vs Carduelis flammea

redpoll and Carduelis flammea both are nouns.

Word	Noun	Adjective	Verb	Adverb
redpoll	Yes	No	No	No
Carduelis flammea	Yes	No	No	No

As nouns, redpoll and Carduelis flammea are synonyms defined as:

redpoll and Carduelis flammea: small siskin-like finch with a red crown and a rosy breast and rump

redpoll (noun)	Carduelis flammea (noun)
small siskin-like finch with a red crown and a rosy breast and rump	small siskin-like finch with a red crown and a rosy breast and rump
small siskin-like finch with a red crown