horned puffin vs puffin

horned puffin and puffin both are nouns.

Word	Noun	Adjective	Verb	Adverb
horned puffin	Yes	No	No	No
puffin	Yes	No	No	No

As nouns, puffin is a hypernym of horned puffin; that is, puffin is a word with a broader meaning than horned puffin:

horned puffin: northern Pacific puffin
puffin: any of two genera of northern seabirds having short necks and brightly colored compressed bills

horned puffin (noun)	puffin (noun)
northern Pacific puffin	any of two genera of northern seabirds having short necks and brightly colored compressed bills