I came here to have fun and share, but it seems, you and some others know it all, well, you don't. In fact, I don't think you actually know much at all. You make to many rules. In your quest for being scientific, you missed the entire boat, you make bad observations. If you had experience, you would ask questions and learn, instead of making barriers and not learning. Your choice.
The snake is indeed a blacktail, and there are lots of them with banded tails, I/we, HM, see them all the time. I really cannot explain why you don't. I have lots of cool pics, like banded mohaves, rattleless lepdis and atrox(not broken, no ability to have one) Way more neat stuff, but you make it no fun, and I have no reason to come here other then to have fun. To bad, you may have learned something. F