Is the Staffordshire Bull Terrier bigger than the Miniature American Shepherd?
Miniature American Shepherd The Miniature American Shepherd, frequently abbreviated MAS, is a small herding dog breed. The MAS is highly intelligent and biddable. The breed is often trained for dog sports such as herding, agility, obedience, disc dog, flyball, and others.
American Bulldog Registry The American Bulldog is registered by many organisations dedicated to registering "pure-breed" animals. However, some specialize in registering American Bulldogs only.