Every winter, there is a beautiful scenery in the Haiyuan Dam near Dianchi Lake at the foot of Xishan Mountain. A large area of red-billed gulls flew over from Siberia for the winter. With a wave of bread, the seagulls rushed in, and the scene was spectacular. It is said that these gulls are very clever and know people who often come to feed them. To strangers, grab the food gently without stopping.