While American Bulldogs are generally not considered to be as vocal as some other breeds, they may still bark when strangers approach the home or when seeing other animals in the environment. Providing a secure and stimulating environment, along with consistent training and positive reinforcement, can help manage barking behavior in American Bulldogs. They may also bark to express excitement or as a response to boredom or loneliness. As with any dog, they can be discouraged from barking as frequently with proper training and exercise.