The American Bulldog's muzzle is also square and box-shaped and approximately 35 to 40 percent of the overall head length. It should be deep, wide, and show power. There should be a distinct furrow between the eyes and an abrupt, deep stop. The American Bulldog's ears are button or rose form. The tail must not be docked. It should be long enough to reach the hocks, or slightly past. The tail will often be carried above the back when the dog is moving or excited. It should end in a semi-circle, which is often evident when the dog carries it above his back.
The American Bulldog' s coat is short and smooth. The preferred color is at least fifty percent white with patches of color. An all-white dog is equally acceptable but care must be taken to ascertain that there is no hearing problem with an all-white dog. The color patches may be any shade of brindle of any shade of brown (tan, red, yellow, etc.).
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A predominately colored dog with areas of white is next in order of preference (the same colors allowable), and then solid-colored dogs of these same colors. Solid sable, black, black-and-tan, black-and-liver, merle, St. Bernard red and fawn with black mask are not allowable. Fawn is only acceptable if no mask is present. The eyes are darker to lighter shades of brown only. The nose should be black, not pink or dudley.
