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 Atlantic coasts during winter.

2017年1月19日 · Once Ring-necked and Tufted Ducks are out of the running, you’re left with the pair that’s toughest to tell apart: scaup. During winter, location can be a deciding factor. Greater Scaup tend to choose saltwater bodies, while Lesser …

The greater scaup (Aythya marila), just scaup in Europe or, colloquially, "bluebill" in North America, [3] is a mid-sized diving duck, larger than the closely related lesser scaup and tufted duck. It spends the summer months breeding in Iceland, east across Scandinavia, northern Russia and Siberia, Alaska, and northern Canada.

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 Atlantic coasts during winter. Here, black-and-white males and chocolatey-brown females bob along on the waves.

Round-headed diving duck. Males have black breast, medium gray back, white sides, and yellow eye. Head appears black with a greenish sheen in good lighting, never purplish. Females are brown overall, grayer on body in winter, with white patch at base of bill and yellow eye.

Audubon’s scientists have used 140 million bird observations and sophisticated climate models to project how climate change will affect the range of the Greater Scaup. Learn even more in our Audubon’s Survival By Degrees project.

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 Atlantic coasts during winter. Here, black-and-white males and chocolatey-brown females bob along on the waves.

The Greater scaup (Aythya marila) is a diving duck also known as scaup in Europe or, colloquially, "bluebill" in North America. The name of this bird may come from "scalp", a Scottish and Northern English word for a shellfish bed, or from the duck's mating call: "scaup scaup".

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 rear end. Females and non-breeding males are dark brown with …

Known as the “bluebill” across North America, the greater scaup is the larger of the closely related lesser scaup. It is a mid-sized diving duck with yellow irises and a characteristic blue bill.