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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 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. Black-bellied whistling-duck, Dendrocygna autumnalis (A)
This 45–51 cm duck looks like a small goose, and mostly feeds by grazing in flocks. The male is grey with a dark brown head, mottled breast and very thin white and black stripes on sides/flanks. The female has white stripes above and below the eye and mottled underparts. Both sexes have grey wings with black primaries and a white speculum ...
Domesticated birds may look similar; most are dark brown or black mixed with white, particularly on the head. [10] Other colors, such as lavender or all-white, are also seen. Both sexes have a nude black-and-red or all-red face; the drake also has pronounced caruncles at the base of the bill and a low erectile crest of feathers. [8]
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. Black-bellied whistling-duck, Dendrocygna autumnalis (A)
Blue duck: Hymenolaimus malacorhynchos (Gmelin, JF, 1789) 36 Flying steamer duck: Tachyeres patachonicus (King, PP, 1831) 37 Fuegian steamer duck: Tachyeres pteneres (Forster, JR, 1844) 38 Falkland steamer duck: Tachyeres brachypterus (Latham, 1790) 39 Chubut steamer duck: Tachyeres leucocephalus Humphrey & Thompson, 1981: 40 Torrent duck ...
Magpie geese are unmistakable birds with their black and white plumage and yellowish legs. The feet are only partially webbed, and the magpie goose feeds on vegetable matter in the water, as well as on land. Males are larger than females. Unlike true geese, their molt is gradual, so no flightless periods result. Their voice is a loud honking.
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, flattened bills, and feathers that are excellent at shedding water due to an oily coating. Turkey holds an important wintering population of the endangered white-headed duck (Oxyura leucocephala).