Burrows that have feathers or white droppings at the mouth probably contain burrowing owls. There will not be any prairie dogs in the burrows the owls are using. Also be alert for black-footed ferrets. This very secretive animal depends almost entirely on prairie dogs for food. It is illegal to willfully kill a black-footed ferret, so make a thorough check for evidence of ferrets before undertaking prairie dog control.
Historical records show that black-footed ferrets have lived in New Mexico.
However, they were never plentiful and no verified sightings have been made in the state for many years. The most obvious distinguishing feature of a black-footed ferret is a black mask across the face. A long dirt ramp outside the prairie dog burrow is also characteristic. James E. Knight, Extension Wildlife Specialist, retired. NMSU and U.S. Department of Agriculture cooperating.