gannet vs pelecaniform seabird

gannet and pelecaniform seabird both are nouns.

Word	Noun	Adjective	Verb	Adverb
gannet	Yes	No	No	No
pelecaniform seabird	Yes	No	No	No

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

gannet: large heavily built seabird with a long stout bill noted for its plunging dives for fish
pelecaniform seabird: large fish-eating seabird with four-toed webbed feet

gannet (noun)	pelecaniform seabird (noun)
large heavily built seabird with a long stout bill noted for its plunging dives for fish	large fish-eating seabird with four-toed webbed feet