What colors are Parson Russell Terriers?

What colors are Parson Russell Terriers?
Parson Russell Terriers are most commonly white with black, brown, cream, tan, or tricolor markings, often on the head or tail. The classic look is a predominantly white coat with limited patches of one or two colors. Occasionally, some Parson Russells may be all white or present with a grizzle coat, which often creates a salt-and-pepper coloration.