A black-necked crane hovers over a nature reserve in Lhunzhub County, Lhasa, southwest China's Tibet Autonomous Region, Dec. 12, 2020. (Xinhua/Huang Huo) 

Black-necked cranes come to Tibet around October each year and stay at the wetlands and barley fields in the northern part of the region to forage for food.

Established in 1993 to advance the protection of black-necked crane, the nature reserve in Lhunzhub County attracts an increasing number of black-necked cranes to spend winter here.

Tibet has been making increasing efforts to protect wild animals over the past few decades. By the end of last year, the region had set up 47 nature reserves within an area totaling 412,200 square km, accounting for 34.35 percent of that of the whole region.