The Border Collie is a working and herding dog breed developed in the Scottish borders for herding livestock, especially sheep. It was specifically bred for intelligence and obedience. It is very fetch-oriented. The American Border Collie Association recommends that potential owners, before taking on the breed as a household pet, should be sure they can provide regular exercise commensurate with the collie's high energy and prodigious stamina. A working collie may run many miles a day, using its experience, personality, and intelligence to control challenging livestock. These dogs will become distressed and frustrated if left in isolation, ignored or inactive. Like many working breeds, border collies can be motion-sensitive and may chase moving vehicles and bicycles, but this behavior can be modified by training. Some of the more difficult behaviors require patience, as they are developmental and may disappear as the dog matures.