Black-necked cranes seen at nature reserve in Tibet

Black-necked cranes are pictured at a nature reserve in Lhunzhub County, Lhasa, southwest China's Tibet Autonomous Region, Dec. 12, 2020. Established in 1993, the nature reserve in Lhunzhub County attracts an increasing number of black-necked cranes to spend winter here. (Xinhua/Zhang Rufeng)