A large flock of migratory birds takes off from a wetland in Ordos city in North China’s Inner Mongolia autonomous region. [Photo by Zhu Xi/provided to chinadaily.com.cn]

Honghaizi Wetland, in Ordos city, North China’s Inner Mongolia autonomous region, welcomes more than 10,000 migratory birds in early winter. These birds are searching for food and resting during their trip to the warmer areas of South China, where they are traveling to escape the cold.