Unlike cream and dun, silver is a gene that dilutes only black pigment in a horse's coat This gene is responsible for the color commonly known as "chocolate chestnut" (which is actually not chestnut at all). On bay horses this leaves the mane and tail a flaxen color and the legs usually take on a chocolate color. The main body coloring is not affected, since the silver gene does not act on red pigment. For this reason, bay silvers are often mistaken for flaxen liver chestnuts. If clipped, their coats are a solid pewter silver. Andy, pictured above, is a good example of this color in both his summer coat (chestnut) and his winter clipped coat (silver).