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This is one of the largest living species of duck next only to the steamer ducks which are heavier. The Muscovy duck also attains sizes that nearly rival the white-winged duck, but may average a bit smaller in a wild state. Length is 66–81 cm (26–32 in) and wingspan is 116–153 cm (46–60 in). [5]
Pteronetta, Hartlaub's duck – traditionally dabbling ducks, but may be closer to Cyanochen; Cairina and Asarcornis, Muscovy duck and white-winged duck, respectively (2 species) – traditionally dabbling ducks, but may be paraphyletic, with one species in Tadorninae and the other closer to diving ducks
Bird anatomy, or the physiological structure of birds' bodies, shows many unique adaptations, mostly aiding flight.Birds have a light skeletal system and light but powerful musculature which, along with circulatory and respiratory systems capable of very high metabolic rates and oxygen supply, permit the bird to fly.
The white-winged scoter is one of three North American scoter species and the largest species of scoter. Females range from 950 to 1,950 g (2.09 to 4.30 lb) and 48 to 56 cm (19 to 22 in), averaging 1,180 g (2.60 lb) and 52.3 cm (20.6 in).
Pink-eared duck: Malacorhynchus membranaceus (Latham, 1801) 62 Salvadori's teal: Salvadorina waigiuensis Rothschild & Hartert, EJO, 1894: 63 Muscovy duck: Cairina moschata (Linnaeus, 1758) 64 White-winged duck: Asarcornis scutulata (Müller, S, 1842) 65 Hartlaub's duck: Pteronetta hartlaubii (Cassin, 1860) 66 Wood duck: Aix sponsa (Linnaeus ...
The black and the white-winged scoters are physically very similar to the surf scoter but in flight, the surf scoter is the only one with completely dark wings. [12] Like all sea ducks, the surf scoter becomes flightless during the simultaneous molt of its flight feathers. This vulnerable period happens usually in late July through early August ...
The bird is predominantly black, with large white patches on the wing; the back feathers being iridescent and glossy in males, while the females are more drab. Although the Muscovy duck is a tropical bird, it adapts well to cooler climates, thriving in weather as cold as −12 °C (10 °F) and able to survive even colder conditions.
Anseriformes is an order of birds also known as waterfowl that comprises about 180 living species of birds in three families: Anhimidae (three species of screamers), Anseranatidae (the magpie goose), and Anatidae, the largest family, which includes over 170 species of waterfowl, among them the ducks, geese, and swans.