The American Bulldog descends from working bulldogs that settlers brought to the colonies, where they caught cattle and feral hogs and guarded farms across the South. The type nearly vanished after World War II until John D. Johnson and later Alan Scott revived it. Today's dogs range from the leaner, athletic Scott type to the heavier, shorter-muzzled Johnson type, and many are a mix of both. Adults usually weigh 60 to 115 pounds and are mostly white, often with patches.
Many are devoted, affectionate and confident, with a protective streak. They need early socialization, steady reward-based training and secure handling. In Rochester, that means a dog that stays calm on a leash around joggers, bikes and other dogs on busy trails. Many dogs labeled American Bulldog are mixes, so size, energy and coat vary.