The Elder Scrolls V: Skyrim - Funny Horse Glitch

I approached this small camp and when I got to the top of a ridge and looked down I saw these 2 horses with their......horseplay. I went down for a closer look and after about a minute I saw there was only one horse. I was not paying attention so at first I had no idea what happened but then the other horse fell out of the sky and died. Luckily my autosave was right there so I was able to duplicate it a few times.