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Averaging 35.5 cm (14.0 in) and 370 g (13 oz), it rivals the green-winged teal as the smallest American duck. The bufflehead has a wingspan of 21.6 in (55 cm). [7] Adult males are striking black and white, with iridescent green and purple heads and a large white patch behind the eye.
The diving ducks, commonly called pochards or scaups, are a category of duck which feed by diving beneath the surface of the water. They are part of Anatidae, the diverse and very large family that includes ducks, geese, and swans. The diving ducks are placed in a distinct tribe in the subfamily Anatinae, the Aythyini.
The tufted duck (or tufted pochard) (Aythya fuligula) is a small diving duck with a population of close to one million birds, found in northern Eurasia. They are partially migratory. They are partially migratory.
The eye colour is also variable in males, from white in ferruginous duck (leading to its archaic name of "white-eyed pochard"), through yellow in most species, to deep red in common pochard and canvasback; in females, the eye is brown in all species. The bills are short, fairly broad, and pale blue-grey to black, usually with a small black ...
Ruddy duck diving under water. These are small, compact ducks with stout, scoop-shaped bills, and long, stiff tails they often hold cocked upward. They have slightly peaked heads and fairly short, thick necks. Male ruddy ducks have blackish caps that contrast with bright white cheeks. In summer, they have rich chestnut bodies with bright blue ...
The New Zealand scaup (Aythya novaeseelandiae), also known as the black teal (or pāpango in Māori), is a diving duck species of the genus Aythya endemic to New Zealand. [2] They weigh around 650 grams (23 oz) and measure around 40 centimetres (16 in), and have dark-coloured plumage. They are found throughout New Zealand in deep natural and ...
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".
[9] [18] In breeding plumage, the head, neck, back, and wings are black, with a white trailing edge to the secondary feathers, and white fringes on the scapular feathers, and pure white underparts. The bill is short and stubby. They have a small rounded black tail. The lower face and fore neck become white in winter plumage.