Aerial photo taken on April 11, 2019 shows a view of the Erlangjian scenic spot of Qinghai Lake in northwest China's Qinghai Province.
Brown-headed gulls rest at the Xiannvwan scenic spot of Qinghai Lake in northwest China's Qinghai Province, April 10, 2019.
People pose for photos at the Erlangjian scenic spot of Qinghai Lake in northwest China's Qinghai Province, April 11, 2019.
A brown-headed gull flies over a lake at the Xiannvwan scenic spot of Qinghai Lake in northwest China's Qinghai Province, April 10, 2019.
Aerial photo taken on April 11, 2019 shows a view of the Xiannvwan scenic spot of Qinghai Lake in northwest China's Qinghai Province.