Swans fly over a wetland in Sanmenxia, central China's Henan Province, Nov. 22, 2022. A large number of migratory swans flied to the Yellow River wetland in Sanmenxia to spend winter. (Xinhua/Hao Yuan)
Swans are seen at a wetland in Sanmenxia, central China's Henan Province, Nov. 22, 2022. A large number of migratory swans flied to the Yellow River wetland in Sanmenxia to spend winter. (Xinhua/Wang Ding)
A swan flies over a wetland in Sanmenxia, central China's Henan Province, Nov. 23, 2022. A large number of migratory swans flied to the Yellow River wetland in Sanmenxia to spend winter. (Xinhua/Wang Ding)
Swans are seen at a wetland in Sanmenxia, central China's Henan Province, Nov. 23, 2022. A large number of migratory swans flied to the Yellow River wetland in Sanmenxia to spend winter. (Xinhua/Wang Ding)
A swan is seen at a wetland in Sanmenxia, central China's Henan Province, Nov. 23, 2022. A large number of migratory swans flied to the Yellow River wetland in Sanmenxia to spend winter. (Xinhua/Wang Ding)
Swans are seen at a wetland in Sanmenxia, central China's Henan Province, Nov. 22, 2022. A large number of migratory swans flied to the Yellow River wetland in Sanmenxia to spend winter. (Xinhua/Hao Yuan)
Swans are seen at a wetland in Sanmenxia, central China's Henan Province, Nov. 22, 2022. A large number of migratory swans flied to the Yellow River wetland in Sanmenxia to spend winter. (Xinhua/Hao Yuan)
Swans fly over a wetland in Sanmenxia, central China's Henan Province, Nov. 23, 2022. A large number of migratory swans flied to the Yellow River wetland in Sanmenxia to spend winter. (Xinhua/Hao Yuan)
Swans fly over a wetland in Sanmenxia, central China's Henan Province, Nov. 22, 2022. A large number of migratory swans flied to the Yellow River wetland in Sanmenxia to spend winter. (Xinhua/Wang Ding)
Swans are seen at a wetland in Sanmenxia, central China's Henan Province, Nov. 23, 2022. A large number of migratory swans flied to the Yellow River wetland in Sanmenxia to spend winter. (Xinhua/Wang Ding)
Swans fly over a wetland in Sanmenxia, central China's Henan Province, Nov. 22, 2022. A large number of migratory swans flied to the Yellow River wetland in Sanmenxia to spend winter. (Xinhua/Wang Ding)
Swans are seen at a wetland in Sanmenxia, central China's Henan Province, Nov. 22, 2022. A large number of migratory swans flied to the Yellow River wetland in Sanmenxia to spend winter. (Xinhua/Wang Ding)
Swans are seen at a wetland in Sanmenxia, central China's Henan Province, Nov. 23, 2022. A large number of migratory swans flied to the Yellow River wetland in Sanmenxia to spend winter. (Xinhua/Hao Yuan)
Swans fly over a wetland in Sanmenxia, central China's Henan Province, Nov. 23, 2022. A large number of migratory swans flied to the Yellow River wetland in Sanmenxia to spend winter. (Xinhua/Wang Ding)
Swans fly over a wetland in Sanmenxia, central China's Henan Province, Nov. 23, 2022. A large number of migratory swans flied to the Yellow River wetland in Sanmenxia to spend winter. (Xinhua/Wang Ding)
Swans are seen at a wetland in Sanmenxia, central China's Henan Province, Nov. 22, 2022. A large number of migratory swans flied to the Yellow River wetland in Sanmenxia to spend winter. (Xinhua/Hao Yuan)
A swan is seen at a wetland in Sanmenxia, central China's Henan Province, Nov. 23, 2022. A large number of migratory swans flied to the Yellow River wetland in Sanmenxia to spend winter. (Xinhua/Hao Yuan)
Swans fly over a wetland in Sanmenxia, central China's Henan Province, Nov. 23, 2022. A large number of migratory swans flied to the Yellow River wetland in Sanmenxia to spend winter. (Xinhua/Wang Ding)
