The only circumpolar diving duck, the Greater Scaup breeds across the tundra regions in North America and Europe. They congregate by the hundreds and thousands along the Pacific and …

2015年1月3日 · Greater Scaup sometimes have the appearance of a flat spot on the head. Some female Greater Scaup may have a pale cheek patch in spring and summer. However, some …

2017年1月19日 · The female’s extensions are much shorter, but they’re still noticeable. Though common in Europe and Asia, the species is considered rare in the continental United States. …

Incubation is by female only, 24-28 days. Female leads young to water shortly after hatching; 2 or more broods may join, tended by 1 or more females. Young feed themselves, are capable of …

The only circumpolar diving duck, the Greater Scaup breeds across the tundra regions in North America and Europe. They congregate by the hundreds and thousands along the Pacific and …

2019年11月29日 · Female Greater Scaup (Seaforth, Lancashire, 8 February 2005). The wing-bar on this flying Greater Scaup resembles that of Tufted Duck, but the white facial patch is strong …

Females are brown overall, grayer on body in winter, with white patch at base of bill and yellow eye. Very similar to Lesser Scaup; note smoothly rounded head without tall peak, puffier …

2014年1月30日 · Female. Females have a white-ringed bill and a white eyering that female Greater Scaup lack. © terence zahner / Macaulay Library Arizona, March 05, 2017

2023年3月7日 · Greater Scaup (Aythya marila) is a medium-sized diving duck with a big, blue-gray beak. Breeding males are pale gray above and white below with a black chest, head, and …

Female greater scaup are brown with white oval patches around their bills. The female's bill is similar to that of the male, but slightly duller, and the legs and feet are gray. Greater scaup …