谁能告诉我一些有关天鹅的介绍（英文的）

介绍天鹅是需要很长的一段短文
如果你是个学生，我能给你较详细的英文介绍：
（这里不提供中文介绍）
Swan - Bird outline, duck branch build big (155 centimeters) white swan. The mouth is black, the mouth base has the big piece yellow. The yellow delays until the beak to skip Cheng Jian. Swims when the neck compare the wart nose swan straight. The Asian adult feather color compares the wart nose swan to be more monotonous, the mouth color is also pale. Is bigger than the whistling swan many. Iris - - brown; Mouth - - black, but the base is yellow; Foot - - black. Cry: When flight cry for the unique klo-klo-klo sound, but contact cry like resounding and melancholy toot. Distribution range: North Greenland, Northern Europe, Asia, survive the winter in Central Europe, Central Asia and China. Distributed condition: The reproduction in the north lake's reed bed, ties the group to move to the south survives the winter. Quantity are less than the whistling swan. Habit: When flight compares the wart nose swan static sound many。

Swan is a major characteristic shape of birds, the greatest length of 1.5 meters and weighing more than 6000 grams. Swan is also called the Great White Swan, swan, is a large-scale Youqin, the body of about 1.5 meters and weighing over 10 kg can be. White body feathers, mostly black mouth, nose, mouth to the Department of yellow. Their long head and neck, accounting for about half the length, swimming in the neck often straight, Fu Liang Chi paste. As a result of their elegant body, through the ages has become the swan embodiment of innocence and goodness.