A flock of birds takes a rest in Horinger county in Hohhot, North China's Inner Mongolia autonomous region, Nov 12. With its improving environment, Hohhot has become a temporary rest site for various species of migratory birds. [Photo/WeChat account of Wenlyu Qingcheng]

Migratory birds take to the wing in Horinger county, Hohhot, Inner Mongolia. [Photo/WeChat account of Wenlyu Qingcheng]