Border Collies come from the hills along the Anglo-Scottish border, where shepherds wanted a dog that could gather sheep with speed and very little instruction. They're medium-sized, usually 30 to 55 pounds, with rough or smooth double coats in black and white and plenty of other colors.
In a city like Allentown, the work shifts from sheep to people. Many Border Collies are quick learners that shine at agility, fetch and trick training, and they often bond tightly with their families. Without enough to do, some invent jobs, like herding kids or chasing bikes. They shed moderately, more in spring and fall. Dogs vary, so a Border Collie or mix may be calmer or more intense than the textbook description.