source：xinhua editor：zhang wenni
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)