Migratory Birds Fly Over The Hongze Lake Wetland National Nature Reserve in Suqian

China environment wetland bird lake Suqian China November 6 2023 Migratory birds Hongze Lake Wetland National Nature Reserve Jiangsu province Costfoto NurPhoto Bird migration Nature photography Chinese wildlife Conservation area Biodiversity Ornithology Natural habitat Ecotourism Environmental protection Birdwatching Wetland ecosystem East Asian flyway Seasonal movement Avian species Waterfowl Habitat preservation Wildlife sanctuary Nature reserve Jiangsu wildlife Bird sanctuary Aerial migration.