Photo taken on Feb. 21 shows migratory birds gather in Fuhe Wetland Park, Wuhan City, central China's Hubei Province. Fuhe Wetland Park is rich in water resources and boasts a good ecological environment, attracting tens of thousands of migratory birds from Northeast China and Siberia here for winter every year.Photo:China News Service

Photo taken on Feb. 21 shows migratory birds gather in Fuhe Wetland Park, Wuhan City, central China's Hubei Province. Fuhe Wetland Park is rich in water resources and boasts a good ecological environment, attracting tens of thousands of migratory birds from Northeast China and Siberia here for winter every year.Photo:China News Service

Photo taken on Feb. 21 shows migratory birds gather in Fuhe Wetland Park, Wuhan City, central China's Hubei Province. Fuhe Wetland Park is rich in water resources and boasts a good ecological environment, attracting tens of thousands of migratory birds from Northeast China and Siberia here for winter every year.Photo:China News Service

Photo taken on Feb. 21 shows migratory birds gather in Fuhe Wetland Park, Wuhan City, central China's Hubei Province. Fuhe Wetland Park is rich in water resources and boasts a good ecological environment, attracting tens of thousands of migratory birds from Northeast China and Siberia here for winter every year.Photo:China News Service