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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 white-headed duck (Oxyura leucocephala) is a small diving duck some 45 cm (18 in) long. The male has a white head with black crown, a blue bill, and reddish-grey plumage. The female has a dark bill and rather duller colouring. Its breeding habitat is lakes with open water and dense vegetation at the margin.
The black-headed duck is the most basal living member of its subfamily, and it lacks the stiff tail and swollen bill of its relatives. Overall much resembling a fairly typical diving duck, [5] its plumage and other peculiarities indicate it may not be a very close relative of the other stiff-tailed ducks, but rather the product of convergent evolution from the ancestors of the stiff-tailed ducks.
The paradise shelduck is a colourful, large-bodied species of duck that differs in features depending on the sex. [11] Both females and males have chestnut-colour undertails, primarily black wing feathers with green secondary wing feathers, and upper wing surface feathers that are white. [11] They have black legs and webbed feet for swimming. [12]
Black-headed duck: Heteronetta atricapilla (Merrem, 1841) 166 Masked duck: Nomonyx dominicus (Linnaeus, 1766) 167 Ruddy duck: Oxyura jamaicensis (Gmelin, JF, 1789) 168 Andean duck: Oxyura ferruginea (Eyton, 1838) 169 Lake duck: Oxyura vittata (Philippi, 1860) 170 Blue-billed duck: Oxyura australis Gould, 1837: 171 Maccoa duck: Oxyura maccoa ...
Black guillemot. Order: Charadriiformes Family: Alcidae. Alcids are superficially similar to penguins due to their black-and-white colors, their upright posture, and some of their habits, however they are only distantly related to the penguins and are able to fly. Auks live on the open sea, only deliberately coming ashore to nest.
Laridae is a family of medium to large seabirds and includes gulls, terns, kittiwakes, and skimmers. They are typically gray or white, often with black markings on the head or wings. They have stout, longish bills and webbed feet. Twenty-six species and a species pair have been recorded in Nevada.
The white-faced whistling duck has a long grey bill, a long head, and longish legs. It has a black neck and head, and a distinctive white face that gives it its name, though the amount of white color visible has regional variations among the species.