這是12月5日清晨在拉薩市林周縣虎頭山水庫拍攝的越冬黑頸鶴（無人機照片）。西藏拉薩市林周縣位于拉薩河上游及澎波河流域，平均海拔約4200米，是黑頸鶴的主要越冬地之一。[新華社記者姜帆攝]

This aerial photo taken on Dec. 5, 2023 shows black-necked cranes at a reservoir in Lhunzhub County of Lhasa, southwest China's Xizang Autonomous Region. Lhunzhub County is one of the main habitats for black-necked cranes to spend winter. (Xinhua/Jiang Fan)