Australian Cattle Dogs, often called Blue Heelers, were developed in nineteenth-century Australia to drive cattle over long distances, nipping at heels to keep the herd moving. The result is a compact, muscular dog of about 35 to 50 pounds with a short, weatherproof double coat in blue or red speckle. That coat suits Milwaukee's cold winters reasonably well, though it sheds heavily once or twice a year.
Heelers are smart, alert and loyal, and many stay reserved with strangers. The herding instinct can show up as nipping at heels, chasing bikes or bossing other pets, so early socialization and consistent, reward-based training matter. Most Heelers mature around age two. Dogs vary, and a Heeler mix may share only some of these traits. Many live 12 to 16 years, so adopting one is a long commitment.