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The ring-necked duck (Aythya collaris) is a diving duck from North America commonly found in freshwater ponds and lakes. [3] The scientific name is derived from Greek aithuia , an unidentified seabird mentioned by authors including Hesychius and Aristotle , and Latin collaris , "of the neck" from collum , "neck".
A tufted duck in flight showing the white wingbar. The species are plump, compact, medium-sized ducks ranging from 37–61 cm long, 60–84 cm wingspan, and weighing 410–1600 g, with canvasback the largest, and ring-necked duck and ferruginous duck marginally the smallest.
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 .
Hybrids between lesser scaup and ring-necked ducks are recognizable by very dark wings contrasting with a light grey underside more than in the lesser scaup but less than in the ring-necked duck. Hybrids between the lesser scaup and the redhead (A. americana) are recognizable by the lack of contrast between wings and belly and the dull brownish ...
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 ...
New Zealand scaup; R. ... Ring-necked duck; T. Tufted duck This page was last edited on 25 August 2014, at 14:32 (UTC). Text is available under the ...
Bitterns tend to be shorter necked and more secretive. Members of Ardeidae fly with their necks retracted, unlike other long-necked birds such as storks, ibises, and spoonbills.egrets, including the great egret, were decimated in the past by plume hunters , but numbers recovered when given protection in the 20th century. [ 2 ]
Hybrid ducks of the genus Aythya include birds that are a mixture of tufted duck, greater scaup, pochard, ferruginous duck and ring-necked duck. List of duck hybrids: Northern pintail × mallard; Ruddy duck × white-headed duck; Ruddy shelduck × shelduck; White-faced whistling duck × plumed whistling duck; Baikal teal × northern pintail ...