Border Collies come from the hills along the Anglo-Scottish border, where shepherds developed them to gather sheep with speed, focus and very few commands. They're medium-sized and athletic, usually 30 to 55 pounds, with a rough or smooth double coat that's most often black and white, though many other colors turn up. Shedding is moderate and heavier in spring and fall.
In Ann Arbor, that working background shows up in everyday ways. A Border Collie may stare at or circle bikes, joggers and kids on a busy sidewalk, and a dog without enough to do can turn to chewing, barking or herding the household. Reward-based training, puzzle toys and a steady routine keep that sharp mind busy. Dogs vary, so any one Border Collie's energy and sensitivity can differ from the breed's reputation.