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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 .
This group of ducks is so named because its members feed mainly by diving, although in fact the Netta species are reluctant to dive, and feed more like dabbling ducks. These are gregarious ducks, mainly found on fresh water or on estuaries, though the greater scaup becomes marine during the northern winter. They are strong fliers; their broad ...
Scaup is the common name for three species of diving duck: Greater scaup, or just "scaup", Aythya marila; Lesser scaup, Aythya affinis;
New Zealand scaup: New Zealand: least concern A. fuligula: Tufted duck: Throughout temperate and northern Eurasia; occasional visitor to the United States and Canada: least concern A. marila: Greater scaup: Iceland, Northern Europe, Northern Asia except the Far East (A. m. marila); far northeastern Asia, Alaska, northern Canada (A. m. nearctica ...
Ferruginous duck, Aythya nyroca (A) Tufted duck, Aythya fuligula; Greater scaup, Aythya marila (A) Lesser scaup, Aythya affinis (A) King eider, Somateria spectabilis (A) Common eider, Somateria mollissima (A) Surf scoter, Melanitta perspicillata (A) White-winged scoter, Melanitta deglandi (A) Common scoter, Melanitta nigra (A) Long-tailed duck ...
The family Anatidae includes the ducks and most duck-like waterfowl, such as geese and swans. These birds are adapted to an aquatic existence with webbed feet, bills which are flattened to a greater or lesser extent, and feathers that are excellent at shedding water due to special oils. Thirty-four species have been recorded in Yellowstone.
Ring-necked duck, Aythya collaris (A) Ferruginous duck, Aythya nyroca; Tufted duck, Aythya fuligula; Greater scaup, Aythya marila (A) Lesser scaup, Aythya affinis (A) Common eider, Somateria mollissima (A) Velvet scoter, Melanitta fusca (A) Common scoter, Melanitta nigra; Long-tailed duck, Clangula hyemalis (A) Common goldeneye, Bucephala ...
Ring-necked duck, Aythya collaris (A) Greater scaup, Aythya marila (A) Lesser scaup, Aythya affinis; Hooded merganser, Lophodytes cucullatus (A) Red-breasted merganser, Mergus serrator (A) Masked duck, Nomonyx dominicus (A) Ruddy duck, Oxyura jamaicensis (A)