Swans are seen at the Wuxing white crane conservation area by the Poyang Lake in Nanchang, east China's Jiangxi Province, Nov. 30, 2021. Numerous migratory birds including white cranes and swans have arrived in the wetland by the Poyang Lake, taking it as their winter habitat. (Xinhua/Zhou Mi)
A swan flies over the Wuxing white crane conservation area by the Poyang Lake in Nanchang, east China's Jiangxi Province, Nov. 30, 2021. Numerous migratory birds including white cranes and swans have arrived in the wetland by the Poyang Lake, taking it as their winter habitat. (Xinhua/Zhou Mi)
Two swans fly over the Wuxing white crane conservation area by the Poyang Lake in Nanchang, east China's Jiangxi Province, Nov. 30, 2021. Numerous migratory birds including white cranes and swans have arrived in the wetland by the Poyang Lake, taking it as their winter habitat. (Xinhua/Zhou Mi)
A flock of white cranes fly over the Wuxing white crane conservation area by the Poyang Lake in Nanchang, east China's Jiangxi Province, Nov. 30, 2021. Numerous migratory birds including white cranes and swans have arrived in the wetland by the Poyang Lake, taking it as their winter habitat. (Xinhua/Zhou Mi)
Swans are seen at the Wuxing white crane conservation area by the Poyang Lake in Nanchang, east China's Jiangxi Province, Nov. 30, 2021. Numerous migratory birds including white cranes and swans have arrived in the wetland by the Poyang Lake, taking it as their winter habitat. (Xinhua/Zhou Mi)
Two swans fly over the Wuxing white crane conservation area by the Poyang Lake in Nanchang, east China's Jiangxi Province, Nov. 30, 2021. Numerous migratory birds including white cranes and swans have arrived in the wetland by the Poyang Lake, taking it as their winter habitat. (Xinhua/Zhou Mi)
A swan is seen at the Wuxing white crane conservation area by the Poyang Lake in Nanchang, east China's Jiangxi Province, Nov. 30, 2021. Numerous migratory birds including white cranes and swans have arrived in the wetland by the Poyang Lake, taking it as their winter habitat. (Xinhua/Zhou Mi)
Migrant birds fly over the Wuxing white crane conservation area by the Poyang Lake in Nanchang, east China's Jiangxi Province, Nov. 30, 2021. Numerous migratory birds including white cranes and swans have arrived in the wetland by the Poyang Lake, taking it as their winter habitat. (Xinhua/Zhou Mi)
A white crane is seen at the Wuxing white crane conservation area by the Poyang Lake in Nanchang, east China's Jiangxi Province, Nov. 30, 2021. Numerous migratory birds including white cranes and swans have arrived in the wetland by the Poyang Lake, taking it as their winter habitat. (Xinhua/Zhou Mi)
White cranes are seen at the Wuxing white crane conservation area by the Poyang Lake in Nanchang, east China's Jiangxi Province, Nov. 30, 2021. Numerous migratory birds including white cranes and swans have arrived in the wetland by the Poyang Lake, taking it as their winter habitat. (Xinhua/Zhou Mi)
A flock of swans fly over the Wuxing white crane conservation area by the Poyang Lake in Nanchang, east China's Jiangxi Province, Nov. 30, 2021. Numerous migratory birds including white cranes and swans have arrived in the wetland by the Poyang Lake, taking it as their winter habitat. (Xinhua/Zhou Mi)
A flock of white cranes fly over the Wuxing white crane conservation area by the Poyang Lake in Nanchang, east China's Jiangxi Province, Nov. 30, 2021. Numerous migratory birds including white cranes and swans have arrived in the wetland by the Poyang Lake, taking it as their winter habitat. (Xinhua/Zhou Mi)
Migrant birds are seen at the Wuxing white crane conservation area by the Poyang Lake in Nanchang, east China's Jiangxi Province, Nov. 30, 2021. Numerous migratory birds including white cranes and swans have arrived in the wetland by the Poyang Lake, taking it as their winter habitat. (Xinhua/Zhou Mi)
An egret flies over the Wuxing white crane conservation area by the Poyang Lake in Nanchang, east China's Jiangxi Province, Nov. 30, 2021. Numerous migratory birds including white cranes and swans have arrived in the wetland by the Poyang Lake, taking it as their winter habitat. (Xinhua/Zhou Mi)
A flock of swans fly over the Wuxing white crane conservation area by the Poyang Lake in Nanchang, east China's Jiangxi Province, Nov. 30, 2021. Numerous migratory birds including white cranes and swans have arrived in the wetland by the Poyang Lake, taking it as their winter habitat. (Xinhua/Zhou Mi)
A swan is seen at the Wuxing white crane conservation area by the Poyang Lake in Nanchang, east China's Jiangxi Province, Nov. 30, 2021. Numerous migratory birds including white cranes and swans have arrived in the wetland by the Poyang Lake, taking it as their winter habitat. (Xinhua/Zhou Mi)
White cranes are seen at the Wuxing white crane conservation area by the Poyang Lake in Nanchang, east China's Jiangxi Province, Nov. 30, 2021. Numerous migratory birds including white cranes and swans have arrived in the wetland by the Poyang Lake, taking it as their winter habitat. (Xinhua/Zhou Mi)
