Baldpates is the plural of baldpate, an old-fashioned or literary word for a bald-headed person.
The term also names the American wigeon, a duck with a white stripe on its head that suggests baldness: A flock of baldpates settled on the marsh.
1. ducks — wigeon, Medium-sized dabbling duck; waterfowl (Swimming birds collectively); drake (Male waterfowl); migration (Movement to new territory); flock · wetlands · flyway · plumage · molting · dabbling · marsh · pond · foraging · breeding
2. hairless — bare, Lacking any covering; shaven (Cleared of hair); slick (Smooth or craftily adept); smooth (Without roughness or difficulty); shiny · gleaming · polished · clean-shaven · glossy · crowns · domes · scalps · heads