solan goose vs gannet

solan goose and gannet both are nouns.

Word	Noun	Adjective	Verb	Adverb
solan goose	Yes	No	No	No
gannet	Yes	No	No	No

As nouns, gannet is a hypernym of solan goose; that is, gannet is a word with a broader meaning than solan goose:

solan goose: very large white gannet with black wing tips
gannet: large heavily built seabird with a long stout bill noted for its plunging dives for fish

solan goose (noun)	gannet (noun)
very large white gannet with black wing tips	large heavily built seabird with a long stout bill noted for its plunging dives for fish