A flock of black-faced spoonbills are observed at Danzhou Bay Wetland in Danzhou, south China's Hainan Province, Dec. 13, 2022. February 2 marks World Wetlands Day. A total of 32,036 water birds of 71 species were observed during a latest annual survey of water birds wintering in Hainan. Among them, 201 black-faced spoonbills were recorded, the highest number since the survey of wintering water birds began in 2003. (Xinhua/Pu Xiaoxu)