Bird Wallpaper Free: Most Beautiful Birds Wallpapers

Tuesday 20 March 2012

Most Beautiful Birds Wallpapers

Most Beautiful Birds Wallpapers Biography

Birds often use colors to identify themselves to other members of their flock and thus to hold it together. Examples are the color patterns revealed in flight by shorebirds such as Ruddy Turnstones and Willets. Colors, such as those inside the mouths of gaping chicks, may also function to stimulate parental feeding. Other colors may direct the feeding movements of the young, as does the red spot on the bill of the Herring Gull, which encourages the young to solicit food and to sSome colors are apparently produced incidentally by pigments deposited for other reasons. For instance, feathers of the wingtips are subjected to more wear than those nearer the base of the wing. And feathers containing pigments are more resistant to wear than those without. That is thought to be the reason that the wingtips of many mostly white birds, such as many gulls, terns, pelicans, and gannets, are dark.Disruptive coloration in the Killdeer. The alternating bands of white and black on the head and neck break up the outline of the bird and make it more difficult to see against a variegated background than a bird that is uniformly light or dark.tick its head into the adult's mouth

Most Beautiful Birds Wallpapers