Australian Cattle Dogs, also called Blue Heelers or Queensland Heelers, were developed in nineteenth-century Australia to move cattle over long distances in heat and dust. They're compact, muscular dogs, usually 35 to 50 pounds, with a short, weather-resistant double coat in blue or red speckle. That coat copes well with Santa Fe's dry air and cold nights, though it sheds, with heavier coat blows once or twice a year.
Heelers are clever, alert and loyal, and many attach closely to one person while staying wary of strangers. Their herding instinct can show up as nipping at heels or chasing bikes and joggers, which matters on busy trails. They need training and a daily job, but with both, many become hardy companions that often live 12 to 16 years.