The Feist is a small American hunting dog rather than one standardized breed. It came out of the rural South, where terriers brought by British settlers were crossed with other dogs to produce quick, quiet hunters that tree squirrels and catch vermin. The United Kennel Club recognizes the Mountain Feist and the Treeing Feist, and most feists stand 10 to 18 inches tall and weigh roughly 12 to 30 pounds, with a short, smooth coat.
Many are alert, affectionate and energetic, with a sharp eye for movement and a strong prey drive. They're usually quieter than many terriers until they spot something to tree. In a city like DC, that means a dog that needs daily activity, a secure harness and leash, and careful supervision around small pets. Dogs vary, so a Feist's own personality matters more than the label.