Bean geese fly over Wuxing white crane conservation area by the Poyang Lake in Nanchang, east China's Jiangxi Province, Nov. 10, 2022. The first batch of migrant birds have arrived at Poyang Lake, the largest fresh-water lake in China, to spend their winter time. (Xinhua/Zhou Mi)

Swan geese fly over Wuxing white crane conservation area by the Poyang Lake in Nanchang, east China's Jiangxi Province, Nov. 10, 2022. The first batch of migrant birds have arrived at Poyang Lake, the largest fresh-water lake in China, to spend their winter time. (Xinhua/Zhou Mi)

Oriental white storks are seen at the Poyang Lake Nanji national wetland reserve in east China's Jiangxi Province, Nov. 11, 2022. The first batch of migrant birds have arrived at Poyang Lake, the largest fresh-water lake in China, to spend their winter time. (Xinhua/Wan Xiang)

Migrant birds are seen at the Poyang Lake Nanji national wetland reserve in east China's Jiangxi Province, Nov. 11, 2022. The first batch of migrant birds have arrived at Poyang Lake, the largest fresh-water lake in China, to spend their winter time. (Xinhua/Wan Xiang)

White cranes fly over Wuxing white crane conservation area by the Poyang Lake in Nanchang, east China's Jiangxi Province, Nov. 10, 2022. The first batch of migrant birds have arrived at Poyang Lake, the largest fresh-water lake in China, to spend their winter time. (Xinhua/Zhou Mi)

Bean geese fly over Wuxing white crane conservation area by the Poyang Lake in Nanchang, east China's Jiangxi Province, Nov. 10, 2022. The first batch of migrant birds have arrived at Poyang Lake, the largest fresh-water lake in China, to spend their winter time. (Xinhua/Zhou Mi)