lesser scaup duck vs broadbill

lesser scaup duck and broadbill both are nouns.

Word	Noun	Adjective	Verb	Adverb
lesser scaup duck	Yes	No	No	No
broadbill	Yes	No	No	No

As nouns, broadbill is a hypernym of lesser scaup duck; that is, broadbill is a word with a broader meaning than lesser scaup duck:

Other hypernyms of lesser scaup duck include bluebill, scaup, scaup duck.

lesser scaup duck (noun)	broadbill (noun)
common scaup of North America; males have purplish heads	small birds of the Old World tropics having bright plumage and short wide bills
	freshwater duck of the Northern Hemisphere having a broad flat bill
	diving ducks of North America having a bluish-grey bill
	tropical American heron related to night herons