The horses at the beginning of a downpour with some thunder Part I

I took this video as we're loving the rain and there was also some lightning and I wanted to see how the horses were behaving.
Shortly after this there was a huge crack of lightning and the sound was immense. So I went back to take another video to see if there was more while filming. There wasn't more, but the horses had moved closer together.

See part II https://youtu.be/zFHfONpAzeU