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Photo taken on March 17, 2019 shows migrant birds at the Wolong Lake wetland in Kangping County of Shenyang, capital of northeast China's Liaoning Province. (Xinhua/Long Lei)
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Photo taken on March 17, 2019 shows migrant birds at the Wolong Lake wetland in Kangping County of Shenyang, capital of northeast China's Liaoning Province. (Xinhua/Long Lei)
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