Cattle Dog is a shelter label more than a single breed. Most dogs listed this way are Australian Cattle Dogs, the Blue and Red Heelers, or mixes with one, and some carry Border Collie, Lab or other ancestry. The Australian Cattle Dog was developed in nineteenth-century Australia by crossing collie-type herders with dingoes, producing a tough, compact drover that moves cattle by nipping at their heels.
Most are medium-sized, muscular and short-coated, around 30 to 50 pounds, with stamina to match. Many bond closely with one household, stay reserved with strangers and get restless without a task. That working heritage fits the Flint Hills cattle country around Manhattan, though a mixed heeler's size, coat and energy vary, so watch how each dog behaves in person rather than relying on the label.