Since this is the chit chat area:
I've lived 50 some years, asked various older people, and none of us ever hears of a piebald deer.
Well. there's a road my husband travels on to get to work, and though he often sees deer, one day he saw a piebald! We didn't quite believe what he saw, but after a liitle computer researching, i guess they're not that common, but do exist