No reason not to. From USA Today in 2013,"They are illegal to kill in several states, including Illinois; Iowa; portions of Montana; Tennessee; and Wisconsin, except in areas where chronic wasting disease is a problem. Michigan prohibited it until late 2008. Other states don't have the restrictions, saying that albinos are inferior genetic stock". Since this was written, Wisconsis has gone back to not allowing white deer to be taken even in the CWD zones. I couldn't find anything regarding protection of piebald deer in any states but that doesn't mean there aren't any.