The frozen rivers begin to melt with flocks of wild swans and mallards migrating back to the north one after another. A group of white swans are swimming back and forth for days in the water of Anshan City, Liaoning Province. They make ripples on the water, in which their graceful and elegant body shapes are reflected in the golden rays cast by the setting sun and all this turns into a splendid landscape full of spring’s vitality.