After the fall harvest season, the fields of Cheorwon Plain are littered with fallen grains, providing an abundant source of food for migratory birds. Moreover, the well-preserved ecosystem of the Demilitarized Zone provides clean water and a healthy habitat, making the Cheorwon area a paradise for migratory birds.

Cranes stalking around the fields and birds taking off en masse from the reservoir make bird watchers exclaim in awe. In Cheorwon, which boasts the biggest white-fronted goose population in Korea, visitors can see observe 110 species of birds, some of which are protected as national treasures. Examples include red-crowned cranes, vultures, white-tailed sea eagles, and golden eagles as well as mallards and spot-billed ducks, which migrate to Korea for the winter.