Seven-Colored Snake

There's a strange report of a "seven-colored" snake from Nepal, found in a well. (News source.) "Another local Jagat Raj Khanal said the snake has already changed four colors." Not sure what that means, as snakes don't change color like that... (shades, sometimes, but that obviously isn't the case here). In any case, the snake is becoming a tourist attraction and religious icon. There are a number of species of snakes in Nepal, so hard to say what exactly is responsible for this. Of course, it's possible that several snakes are taking refuge in the well, confusing the issue.