Tiaozi Wetland, located along the coast of Dongtai, was listed in the World Natural Heritage List in July 20 19. Striped mud is born in the sea and is famous for birds. It is the central node of the East Asia-Australasia migration route, one of the nine bird migration regions in the world, and is known as the "International Bird Airport".

In August, hundreds of black-faced spoonbills leisurely foraged in the high tide habitat of Tiaozi Wetland in Dongtai, Jiangsu Province. The black-faced spoonbill is a medium-sized wading bird, and its number is extremely rare. It is an endangered species in the world, and it is a national first-class protected wild animal. In recent years, the protection and restoration of Tiaozi wetland have been strengthened, the ecological environment has been continuously improved, and there are more and more rare birds.