![Momoge wetland in China's Jilin(9/9)](http://www.ecns.cn/hd/2018/05/15/3bde760c4e3648c0a2c0d807a1ede5a4.jpg)
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)
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)