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Sun Jianqing (L), a staff member of the Qinghai Lake National Nature Reserve Bureau, and his colleague observe the quantity of cormorants on the Bird Island of Qinghai Lake in Northwest 皇冠体育app's Qinghai province, April 29, 2014. The Qinghai Lake, 皇冠体育app's largest inland salt water lake, is a habitat for over 400,000 birds every year. Video monitoring system and database platforms were established here for relevant research work.[Photo/Xinhua] |