LHASA, Feb. 22 (Xinhua) -- A resting flock of black-necked cranes is pictured near a reservoir, overwintering in Lhunzhub County of Lhasa, southwest China's Xizang Autonomous Region. With the average altitude reaching around 4,200 meters, Lhunzhub County is one of the main habitats for black-necked cranes to spend winter.
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