Photo taken on Feb. 20, 2019 shows a view of the Moheertu national wetland park in Ewenki Autonomous Banner of Hulun Buir, north China's Inner Mongolia Autonomous Region. (Xinhua/Yu Dongsheng)
Photo taken on Feb. 20, 2019 shows a view of the Moheertu national wetland park in Ewenki Autonomous Banner of Hulun Buir, north China's Inner Mongolia Autonomous Region. (Xinhua/Ren Junchuan)
Photo taken on Feb. 20, 2019 shows a view of the Moheertu national wetland park in Ewenki Autonomous Banner of Hulun Buir, north China's Inner Mongolia Autonomous Region. (Xinhua/Liu Lei)
Photo taken on Feb. 20, 2019 shows a view of the Moheertu national wetland park in Ewenki Autonomous Banner of Hulun Buir, north China's Inner Mongolia Autonomous Region. (Xinhua/Ren Junchuan)
Photo taken on Feb. 20, 2019 shows a view of the Moheertu national wetland park in Ewenki Autonomous Banner of Hulun Buir, north China's Inner Mongolia Autonomous Region. (Xinhua/Yu Dongsheng)