Swan Free Screensaver. Photos slideshow. Swan screensaver. This free screensaver contains many pictures of Swan. Swans are large water birds, which also includes geese and ducks. Swans are grouped with the closely related geese in the subfamily Anserinae where they form the tribe Cygnini. Sometimes, they are considered a distinct subfamily, Cygninae. Swans usually mate for life, though divorce does sometimes occur, particularly following nesting failure. The number of eggs in each clutch is between 3l8. The word is derived from Old English Swan, akin to the German Schwan and Dutch zwaan, in turn derived from Indo-European root *swen (to sound, to sing), whence Latin derives sonus (sound). (Webster s New World Dictionary) Young swans are known as cygnets, from the Latin word for Swan, cygnus. An adult male is a cob, from Middle English cobbe (leader of a group); an adult female is a pen (origin unknown). The Northern Hemisphere species of Swan have pure white plumage but the Southern Hemisphere species are white-and-black. The Australian Black Swan (Cygnus atratus) is completely black except for the white flight feathers on its wings, and the South American Black-necked Swan has a black neck. The legs of swans are dark blackish grey, except for the two South American species, which have pink legs. Bill colour varies; the four subarctic species have black bills with varying amounts of yellow, and all the others are patterned red and black. The Mute Swan and Black-necked Swan have a lump at the base of the bill on the upper mandible. This screensaver is free, and contains no spyware or virus. It was fully tested by our team before making it available. This screensaver has many transition effects and will never look the same. You can take the full control of the screensaver behavior : change its settings. Sequent, position, effects. Enjoy. The total number of transition effects is now 84 and new effects are: Crossed (Left, Right), Boxed (Grow, S

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