Spinus tristis vs finch

Spinus tristis and finch both are nouns.

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

As nouns, finch is a hypernym of Spinus tristis; that is, finch is a word with a broader meaning than Spinus tristis:

Spinus tristis: American finch whose male has yellow body plumage in summer
finch: any of numerous small songbirds with short stout bills adapted for crushing seeds

Spinus tristis (noun)	finch (noun)
American finch whose male has yellow body plumage in summer	any of numerous small songbirds with short stout bills adapted for crushing seeds