The Australian Kelpie was developed in 1870s Australia from Scottish working collies to move Merino sheep across vast, hot stations. It's a lean, medium-sized dog, usually 25 to 45 pounds, with prick ears, a short weather-resistant coat and a reputation for stamina. Some Kelpies come from working lines and some from show lines, and working dogs usually carry more drive.
Kelpies are alert, quick learners and loyal to their household, though often reserved with strangers. Without a job, that herding drive can turn into nipping at heels, chasing bikes or barking at every sound in the hallway, which matters in Newark, where neighbors are often close by. Adopters who enjoy daily running, training and dog sports tend to get the best from them.