Bao Weicheng, a border police officer in Yancheng, Jiangsu province, plays with red-crowned cranes at Yancheng Coastal Wetlands, a national nature reserve, Dec 11, 2013. Yancheng's border police have been deployed in such areas over the past 30 years to protect wetland and wild birds, earning praise from local people. [Photo by Zhang Shanyu / for China Daily]