Black Swan
Black Swan (Cygnus atratus) is a large waterfowl that is mainly grown in southeastern and southwestern Australia, and has been individually classified as a single species: Chenopis. Black swans may act alone or in groups (from hundreds to thousands). Although most of the body covered with black feathers, but once flying up, you can find in fact the black swan has a row of white hair Xiang Yu. They have a clear, bright red beak, feet are gray-black. Adult black swans grow between 1.1 and 1.4 meters in length, with an average weight of 6 to 9 kg. In flight, the wingspan can reach 1.6 to 2 meters wide. Neck slender, in the swan is the longest one, usually bent into elegant S-type. The males are slightly larger than the females, the bears are also straight and long; the chicks have gray-brown feathers. Black swan in the flight or when the water occasionally loud, such as the title of the call, but also issued a low low hum. In the incubation or nest when if disturbed, it will issue a twitter. Black swans are different from other Australian birds, but they may be mistaken for the magpie goose when they are flying under low light. But as long as they see their long neck and slow beat beat, should still be able to distinguish it. ...