They are interesting tales, and ones I would be interested (and willing) to go to the source for. I have not made Native American folklore or any other related history a subject of study, so I could use more of a foundation before beginning to speculate or tie such incidents into others. It fascinate me, though, because these phenomena are alive and happening today, rather than tales from the past or being uncommon enough that the local community has relegated them to myth or superstition.