We saw one of these on our trip, right as we were pulling into the town of Mansfield, MO. We were sitting at a stoplight and it was on an overhead wire just as pictured below (photos pulled from internet). It put on quite a show for us, catching flies from off the wire and then lighting again. Its tail had that typical scissor motion, back and forth, like the bottom picture. I had seen one on the way to Mexico, some fifteen years ago, but Mike had never seen one. We were on the very edge of its range, and it was a treat to see one at a time we weren't particularly looking or expecting to see anything.