Many species of mammals and birds have been observed on the satellite refuges. Bird watching provides opportunities to see many northern prairie grassland species such as western meadowlarks, mountain plovers, chestnut-collared longspurs, and prairie falcons. Black-tailed prairie dogs are present on several refuges. Large ungulates such as mule deer and pronghorn are common, while native predators like coyote, red fox and badgers are secretive and not commonly seen.