A stunning sea of clouds reigned over the highland valley in Dashanbao Black-necked Crane National Nature Reserve, which is located in Zhaotong City, southwest China's Yunnan Province. Every year, thousands of migratory birds come here for winter, and this year, 1,075 black-necked cranes have already arrived.

(Cover image via VCG / Editor: Xing Fangyu)

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