The American Bulldog descends from working bulldogs that settlers brought to colonial America. On Southern farms they caught cattle and feral hogs and guarded homesteads. The breed nearly disappeared after World War II until John D. Johnson and later Alan Scott revived it, producing a heavier, shorter-muzzled Johnson type and a leaner, more athletic Scott type. Most are mostly white, weigh 60 to 115 pounds and are recognized by the United Kennel Club.
Many are devoted, affectionate and confident with a protective streak, though every dog differs, and plenty of shelter dogs labeled American Bulldog are mixes. In Santa Rosa, that strength pairs best with early socialization, reward-based training and a sturdy leash for walks around town. The short coat sheds moderately year-round, so weekly brushing keeps the couch manageable.