Migratory birds seen in Hailiu reservoir in N China's Inner Mongolia

This photo shows migratory birds flying over Hailiu reservoir in Hohhot, north China's Inner Mongolia Autonomous Region, March 9, 2024. (Xinhua/Bei He)

This photo shows migratory birds in Hailiu reservoir in Hohhot, north China's Inner Mongolia Autonomous Region, March 9, 2024. (Xinhua/Bei He)

This photo shows a migratory bird in Hailiu reservoir in Hohhot, north China's Inner Mongolia Autonomous Region, March 9, 2024. (Xinhua/Bei He)

This photo shows a migratory bird flying over Hailiu reservoir in Hohhot, north China's Inner Mongolia Autonomous Region, March 9, 2024. (Xinhua/Bei He)

This photo shows migratory birds flying over Hailiu reservoir in Hohhot, north China's Inner Mongolia Autonomous Region, March 9, 2024. (Xinhua/Lian Zhen)

This photo shows migratory birds swimming in Hailiu reservoir in Hohhot, north China's Inner Mongolia Autonomous Region, March 9, 2024. (Xinhua/Lian Zhen)

This photo shows migratory birds swimming in Hailiu reservoir in Hohhot, north China's Inner Mongolia Autonomous Region, March 9, 2024. (Xinhua/Bei He)

This photo shows migratory birds swimming in Hailiu reservoir in Hohhot, north China's Inner Mongolia Autonomous Region, March 9, 2024. (Xinhua/Bei He)