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The Northern Hemisphere species of swan have pure white plumage but the Southern Hemisphere species are mixed black and white. The Australian Black Swan (Cygnus atratus) is completely black except for the white flight feathers on its wings; the chicks of black swans are light grey in colour, and the South American Black-necked Swan has a black neck.
2015-05-11T02:22:13+00:00
 

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Did you know?

The number of eggs in a swan clutch ranges from three to eight.
2015-05-11T02:21:49+00:00

The number of eggs in a swan clutch ranges from three to eight.

There are two collective nouns for a group of swans. A group on the ground is known as a 'bank', while a group in flight is called a 'wedge' of swans.
2015-05-11T02:22:52+00:00

There are two collective nouns for a group of swans. A group on the ground is known as a ‘bank’, while a group in flight is called a ‘wedge’ of swans.

Swan eggs hatch after about 45 days of incubation.
2015-05-11T02:21:17+00:00

Swan eggs hatch after about 45 days of incubation.

Black Swans were first seen by Europeans in 1697, when Willem de Vlamingh's expedition explored the Swan River, Western Australia. At that time, Europeans refused to believe in their existence and were only convinced once de Vlamingh managed to dispatch a couple of specimens to Batavia.
2015-05-11T02:23:56+00:00

Black Swans were first seen by Europeans in 1697, when Willem de Vlamingh’s expedition explored the Swan River, Western Australia. At that time, Europeans refused to believe in their existence and were only convinced once de Vlamingh managed to dispatch View Full →

There are six to seven species of swan in the genus Cygnus; in addition there is another species known as a swan, the Coscoroba Swan, although this species is no longer considered related to the true swans
2015-05-11T02:21:30+00:00

There are six to seven species of swan in the genus Cygnus; in addition there is another species known as a swan, the Coscoroba Swan, although this species is no longer considered related to the true swans