I don't know but when I see a whitetail, whether in PA, VT, Nebraska, Wyoming, or Washington I just see a whitetail. Nothing more and nothing less. Now Even I notice the differences when I see a whitetail in Texas or a southern state and of course in Canada but I didn't realize there were all these subspecies. There are three different subspecies just in Wyoming and they all look the same to me! Maybe I need better attention to detail.