Piebald

Piebald is when excessive white eats away at the color of a 'Buck, leaving patches of missing color

R= Recessive

D= Dominant

Base design before mutation

R is when one or more parents have the R gene. R piebald should have small patches of white on the body

D is when one or more parents have the D gene. D Piebald has excessive whiting that covers most of the 'Bucks design.