Spinus tristis vs yellowbird

Spinus tristis and yellowbird both are nouns.

Word	Noun	Adjective	Verb	Adverb
Spinus tristis	Yes	No	No	No
yellowbird	Yes	No	No	No

As nouns, Spinus tristis and yellowbird are synonyms defined as:

Spinus tristis and yellowbird: American finch whose male has yellow body plumage in summer

Other synonyms of Spinus tristis include goldfinch, New World goldfinch.

Spinus tristis (noun)	yellowbird (noun)
American finch whose male has yellow body plumage in summer	American finch whose male has yellow body plumage in summer
	yellow-throated American wood warbler