The Australian Kelpie is a lean, medium-sized herding dog developed in 1870s Australia from Scottish working collies to move Merino sheep across hot, open country. It has prick ears, a fox-like face and a short, weather-resistant double coat in black, red, blue or tan, often with tan points. Most weigh 25 to 45 pounds.
Kelpies are quick, loyal and watchful, and many stay reserved with strangers. In a suburb like Naperville, that drive needs somewhere to go: daily runs, training sessions and puzzle games. Without them, a Kelpie may nip at heels, bark, or chase bikes and joggers along the Riverwalk. Kelpies vary, and one from a working background often has more drive than one from a calmer background.