Thus, this property is a globally significant example of the shared natural heritage embodied in migratory birds. The twelve component parts of the property are located along the Yellow Sea coast of China, including the Bohai Gulf, with a total area of 289,710.94 ha, and a buffer zone of 117,502.10 ha. Criterion (x): The Migratory Bird Sanctuaries along the Coast of Yellow Sea-Bohai Gulf of China support more than 400 species of birds. The property’s tidal flats are of exceptional importance for the conservation of the world’s migratory birds, supporting internationally significant numbers of migratory bird species, including globally threatened species. In particular, the intertidal mudflats attract a high diversity and enormous number of resident and migratory birds.