In Birds of the World (S. M. Billerman, Editor). They look remarkably similar to the Lesser Scaupâ¦ Lesser scaup duck,Aythya affinis,shaking off water droplets after dive,Wetland center in Somerset,United Kingdom. found on large, open lakes, bays. Immature male Greater Scaup, Cape May Pt., Cape May Co., NJ; 7 January 2012. In non-breeding plumage the male is duller, with brown to black head and â¦ Sign in to see your badges. Habitat + 3. At a distance, breeding male Greater Scaup are black and white, but closer views reveal an iridescent green sheen on the head, super thin black barring on the back, a bluish bill, and a yellow eye. An immature Greater Scaup (Aythya marila) on Lake Windermere, Lake District, UK. At a distance, breeding male Greater Scaup are black and white, but closer views reveal an iridescent green sheen on the head, super thin black barring on the back, a bluish bill, and a yellow eye. Winter flocks on coastal bays may number in the thousands. Females are brown, with characteristic white patches around the base of the bill. Life Span and Survivorship. Juveniles are much duller with white bars on the tail and underparts and variable amounts of black streaks on the wings and upperparts. When a flock is feeding on waters where a tide is running, the birds generally face up-current; there may be a continuous shifting as birds from the â¦ Immature Black-crowned or Yellow-crowned Night-Heron? Get Instant ID help for 650+ North American birds. Nonbreeding males have brownish gray back and flanks. The rump and under the is black. Can be similar to immature male and female Tufted Duck, but note smoothly rounded head and more extensive white bill base patch in females. Names (45) Species names in all available languages. Largely black with distinctive rusty wings, glossy underparts, a long and heavy black tail, and deep red eyes. Cornell Lab of Ornithology, Ithaca, NY, USA. Demography and Populations. Flocks winter mainly on saltwater bays and estuaries; also on Great Lakes and other large freshwater lakes that stay ice free in winter. In The Birds of North America (A. F. Poole and F. B. Gill, Editors). Males have black heads, shoulder and breast, white flanks, grey back and a black tail. A pair of horns might weigh up to 14 kg (30 lb); the sheep typically weigh up to 143 kg (315 lb). In late winter, a molt into the alternate (nuptial) plumage was begun. Occasionally an older female Greater Scaup will have male-like head color and male patterning on â¦ Female + 3. POWERED BY MERLIN. Rounded head. Ring-necked Duck, female (1). Pale gray back and white sides are distinctive from a distance. Breeds in shallow lakes and ponds in treeless wetlands in the tundra. Up to three Black Brant were in Essex: at Goldhanger, Salcott-cum-Virley and South Woodham Ferrers. practically ceased. Photo about Onvolwassen mannetje Topper zwemmend rustend; Immature male Greater Scaup resting. This is, however, often not the case for Lesser and Greater â¦ In breeding plumage, the male Greater Scaup has a black head, neck, upper back, and breast. Note the round-headed look with the head peaking closer to the rear. Medium-sized diving duck with a rounded head. The American Wild-life Institute, Washington, D. C. â¦ Cornell Lab of Ornithology, Ithaca, NY, USA. The more northerly of our two scaup species, the Greater is also found across northern Europe and Asia. Disease and Body Parasites. Two night-herons share somewhat similar â¦ Juvenile plumage may be referred to as immature plumage after August due to a slightly different appearance caused by feather wear, even though the feathers are the same. Ruddy Duck. Redhead Female. The Four Keys to ID. Greenish iridescence on head only visible with ideal lighting. Causes of Mortality. Medium-sized duck, dives for invertebrates. Unlike its look-alike relative the Lesser Scaup, the Greater Scaup is found across Eurasia as well as North America. East Midlands. Size & Shape. MOLT IN THE GREATER SCAUP * Billard and Hum phrey 765 swans of North America. Age & Sex: Juvenile Immature Adult Age Unknown; Male: Female: 1: Sex Unknown: Media: Media powered by Macaulay Library. During winter, look for Greater Scaup on coastal bays, lakes, and reservoirs. A seriously impressive movement of Greater Scaup on 29th included 56 south past Lowestoft and no fewer than 81 past Southwold in the same direction. They also have a larger nail on the end of their bill, not to mention body size is generally a little bigger. Females are brown overall with a darker brown head and a white patch next to the bill, but the size of the white patch varies. Ring-necked Duck Female. Cold and wet weather is a significant source of mortality for young scaup, but those that survive can live a long time. Is it a Greater or Lesser Scaup? Though a scarce breeding bird in Britain, it is much more regular in winter, when numbers are boosted by continental migrants. https://doi.org/10.2173/bna.650. The Cornell Lab will send you updates about birds, birding, and opportunities to help bird conservation.
2020 greater scaup immature