The Australian Shepherd was developed on ranches in the American West during the 1800s, not in Australia, from Spanish and Basque herding dogs and collie types. Medium-sized at roughly 40 to 65 pounds, it has a weather-resistant double coat in merle, black or red, often with white and copper trim and eyes that can be blue, brown or a mix. That coat handles Wisconsin cold well, but it sheds heavily, so expect fur on the couch and regular brushing.
Aussies are bright, devoted and happiest with a task. Many bond tightly with family, stay reserved with strangers, and may herd children or other pets by circling or nipping at heels. Without enough exercise and mental work, that drive can turn into barking or chewing. Dogs vary, so an adult dog's actual energy and manners matter more than the breed label.