There are about 75 to 100 mule deer that live around my place. Mostly hay fields and apple orchards. There is a gene pool of piebald color phase in the deer. Every few years one or 2 show up. Yesterday I saw a yearling that was a piebald. 3 years ago there was a beautiful fawn that was piebald, don't think it made it thru the winter as I never saw it again. Sure would like to see an adult buck this color .