In Dusty the Sheepdog, Dusty may have to leave the farm because he cannot do his job. But thanks to Ben's discovery, Dusty is allowed to stay and finds something he is good at. Working dogs, such as kelpies, are very useful on the farm. If they are trained correctly they can help move sheep and cattle from one part of the farm to another. The farmer will use different whistles and commands depending on what the dogs are required to do.
