Policemen from the Yancheng Border Detachment play with red-crowned cranes at Yancheng National Rare Birds Natural Reserve on April 23, 2015. (Source: china.org.cn/ Zhang Shanyu)
Policemen from the Yancheng Border Detachment play with red-crowned cranes at Yancheng National Rare Birds Natural Reserve on April 23, 2015. (Source: china.org.cn/ Zhang Shanyu)