In pics: migratory birds at Hunhe River in Shenyang, NE China

This photo taken on Jan. 4, 2023 shows migratory birds at the Hunhe River in Shenyang, northeast China's Liaoning Province. (Xinhua/Yao Jianfeng)

This aerial photo taken on Jan. 5, 2023 shows migratory birds at the Hunhe River in Shenyang, northeast China's Liaoning Province. (Xinhua/Yao Jianfeng)

This photo taken on Jan. 7, 2023 shows migratory birds at the Hunhe River in Shenyang, northeast China's Liaoning Province. (Xinhua/Yao Jianfeng)

This aerial photo taken on Jan. 5, 2023 shows migratory birds at the Hunhe River in Shenyang, northeast China's Liaoning Province. (Xinhua/Yao Jianfeng)

This aerial photo taken on Jan. 5, 2023 shows migratory birds at the Hunhe River in Shenyang, northeast China's Liaoning Province. (Xinhua/Yao Jianfeng)

This photo taken on Jan. 4, 2023 shows migratory birds at the Hunhe River in Shenyang, northeast China's Liaoning Province. (Xinhua/Yao Jianfeng)

This aerial photo taken on Jan. 5, 2023 shows migratory birds at the Hunhe River in Shenyang, northeast China's Liaoning Province. (Xinhua/Yao Jianfeng)

This photo taken on Jan. 4, 2023 shows migratory birds at the Hunhe River in Shenyang, northeast China's Liaoning Province. (Xinhua/Yao Jianfeng)

This photo taken on Jan. 4, 2023 shows migratory birds at the Hunhe River in Shenyang, northeast China's Liaoning Province. (Xinhua/Yao Jianfeng)

This photo taken on Jan. 7, 2023 shows migratory birds at the Hunhe River in Shenyang, northeast China's Liaoning Province. (Xinhua/Yao Jianfeng)

This photo taken on Jan. 4, 2023 shows migratory birds at the Hunhe River in Shenyang, northeast China's Liaoning Province. (Xinhua/Yao Jianfeng)

This photo taken on Jan. 4, 2023 shows migratory birds at the Hunhe River in Shenyang, northeast China's Liaoning Province. (Xinhua/Yao Jianfeng)