Greater Scaup

Very similar to Lesser Scaup; note smoothly rounded head without tall peak, puffier cheeks, more extensive white stripe on wing in flight, and larger, broader bill. Can be similar to immature male and female Tufted Duck, but note smoothly rounded head and more extensive white bill base patch in females. Often in flocks with other Aythya ducks. Tends to prefer saltwater bays and coves, but also found in freshwater.