Spring snow gradually melts and turns into rain to nurture life spontaneously and silently. On Liuhe River, Mantanghong Town, Zhangwu County, Fuxin, Liaoning, there is floating ice melting little by little and flocks of waterfowl playing and foraging, which brings vitality to the placid river. In recent years, the eco-environment around the wetlands of Liuhe River Basin has been improving so that tens of thousands of migratory birds inhabit here every mid-to-late March.