
Migrant birds are seen at a Yellow River shoal at the foot of Yinshan Mountain in north China's Inner Mongolia Autonomous Region, March 13, 2024. (Photo: Xinhua)

People watch migrant birds at a Yellow River shoal at the foot of Yinshan Mountain in north China's Inner Mongolia Autonomous Region, March 13, 2024.(Photo: Xinhua)

Swans are seen at a Yellow River shoal at the foot of Yinshan Mountain in north China's Inner Mongolia Autonomous Region, March 13, 2024.(Photo: Xinhua)

Swans are seen at a Yellow River shoal at the foot of Yinshan Mountain in north China's Inner Mongolia Autonomous Region, March 13, 2024.(Photo: Xinhua)