Dunlin fly over a wetland in Qingdao City, East China's Shandong Province, May 3, 2018. The migratory birds make a stop at the wetland to replenish their reserves before continuing on their journey. (Photo/IC)
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Dunlin fly over a wetland in Qingdao City, East China's Shandong Province, May 3, 2018. The migratory birds make a stop at the wetland to replenish their reserves before continuing on their journey. (Photo/IC)
