Collie

Dog

Collies are generally medium-sized dogs of about 10 to 25 kg (22 to 55 lb), fairly lightly built with a pointed snout and erect or partly erect ears, giving a foxy impression. Cattle-herding types tend to be rather more stocky. The fur may be short, flat, or long, and the tail may be smooth, feathered, or bushy. Collies have a moderately long tail, with the end of the bone reaching to the hock or joint below. When the dog is quiet, then the tail is low, and has a upward swirl or twist. When the dog is in a gait, or when the dog is excited, then the tail is carried gaily but not over the back.

http://en.wikipedia.org/wiki/Collie