Aythya valisineria vs canvasback duck

Aythya valisineria and canvasback duck both are nouns.

Word	Noun	Adjective	Verb	Adverb
Aythya valisineria	Yes	No	No	No
canvasback duck	Yes	No	No	No

As nouns, Aythya valisineria and canvasback duck are synonyms defined as:

Aythya valisineria and canvasback duck: North American wild duck valued for sport and food

Other synonyms of Aythya valisineria include canvasback.

Aythya valisineria (noun)	canvasback duck (noun)
North American wild duck valued for sport and food	North American wild duck valued for sport and food