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Red-crowned cranes are seen at the Zhalong state-level nature reserve in Qiqihar, northeast China's Heilongjiang Province, Aug. 1, 2018. (Xinhua/Wang Kai)
Red-crowned cranes are seen at the Zhalong state-level nature reserve in Qiqihar, northeast China's Heilongjiang Province, Aug. 1, 2018. (Xinhua/Wang Kai)