Border Collies come from the hills along the Anglo-Scottish border, where shepherds wanted dogs that could gather sheep with speed, focus and almost no instruction. Old Hemp, a Northumberland dog born in 1893, set the quiet, intense working style the breed is still known for. They're medium-sized, usually 30 to 55 pounds, with rough or smooth double coats in black and white and many other colors.
In a city, that heritage shows up as a dog who wants a job. Many Border Collies are brilliant, eager learners that bond closely with their people, but without daily exercise and mental challenges they may invent their own work, like herding kids or chasing bikes and joggers. Dogs vary, so a day of fetch, training and puzzle games matters more than any label.