A staff cleans the cage of a white-naped crane under protection in the Momoge nature reserve in northeast China's Jilin Province, April 29, 2018. Momoge wetland is a stopover site on the migratory route of cranes. (Xinhua/Wang Haofei)
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A staff cleans the cage of a white-naped crane under protection in the Momoge nature reserve in northeast China's Jilin Province, April 29, 2018. Momoge wetland is a stopover site on the migratory route of cranes. (Xinhua/Wang Haofei)
