Mar 4, 2011 · The Lesser Scaup is a medium-sized diving duck with a small peak at the back of the head. From the small peak, the back of the head and neck is flat, not rounded as it is on …

Head shape is best mark for separating the two species: Lesser Scaup has peak at back of crown, slightly smaller bill than Greater Scaup. In flight, note shorter white wing stripe of …

Males have black breast, finely-barred gray back, whitish sides (often slightly dusty-looking), and yellow eye. Head appears black with a purplish or greenish sheen in good light. Females are …

The Lesser Scaup is a medium-sized diving duck found only in North America. Males are known for their blue bills (they are often called “blue bills”) in conjunction with their black heads, which …

The lesser scaup (Aythya affinis) is a small North American diving duck that migrates south as far as Central America in winter. It is colloquially known as the little bluebill or broadbill because of …

Males have a dark purple to black head and a mostly gray to white body. Females are mostly brown on their body and have a dark brown head with a white face patch at the base of the …

Adult male Ring-necked Duck similar in alternate plumage but has quite different bill pattern, black back, grayer flanks and vertical white finger just behind black breast.

Mar 9, 2023 · Have you seen a Lesser Scaup? See this article to learn how to look for and identify this handsome duck!

Oct 3, 2025 · Learn to tell Greater vs Lesser Scaup apart using head shape, bill width, wing stripes, and habitat—key field marks for confident identification.

The lesser scaup is a medium-sized diving duck with a rounded head and a bluish bill. Males are black and white with a glossy black head that may show a purple or green sheen, while …