Very similar to Greater Scaup; note Lesser’s peaked head shape with angle near the rear of crown, slimmer cheeks, less extensive white stripe on wing in flight, and smaller, narrower bill. …

In flight, note shorter white wing stripe of Lesser (reaches halfway out wing). Male Lesser often shows purple gloss on head in good light. Seldom heard; sharp whistles and guttural scolding …

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 …

Head of male glossed with purple, not green. Female dark brown with a small white face patch; not easily distinguishable from female Greater Scaup. In flight, white stripe is shorter than that …

The photos of the ducks in flight show the white wing stripe stops at the bend in the wing and then turns gray. This is indicative of Lesser Scaup. With Greater Scaup the white stripe extends …

2015年1月3日 · The Greater Scaup has more white in the wings than Lesser, but the difference can be minimal and hard to see when in flight. The shape of the head is more distinctive in …

2024年2月3日 · When flying, the greater scaup shows a more rounded head protruding above a rounder, fuller body shape. The lesser appears flatter-headed with a thinner, more angular …

At a distance, breeding male Lesser Scaup are black and white, but closer views reveal an iridescent purple to green sheen on the head, a finely barred black-and-white back, a bluish …

2023年3月9日 · In flight, all Lesser Scaups have white underwings, and a broad white stripe on half of the flight feathers of their upperwing. These ducks usually occur in flocks that float on …

Best told from female Greater Scaup by head shape - peaked at top, and by smaller bill. In flight: white belly and underwings contrast with dark breast and dark undertail coverts; bold white …