Migratory birds thrive at Gansu's Zhangye National Wetland Park

Photo taken on Feb. 24, 2026, shows flocks of migratory birds, including whooper swans, feeding and flying over the water at Zhangye National Wetland Park in northwest China's Gansu Province. (Yang Yongwei/Guangming Pictures)

Photo taken on Feb. 24, 2026, shows flocks of migratory birds, including whooper swans, feeding and flying over the water at Zhangye National Wetland Park in northwest China's Gansu Province. (Yang Yongwei/Guangming Pictures)

Photo taken on Feb. 24, 2026, shows flocks of migratory birds, including whooper swans, feeding and flying over the water at Zhangye National Wetland Park in northwest China's Gansu Province. (Yang Yongwei/Guangming Pictures)