immediate u- turn. no noise.I came out to let my dog use the bathroom and was walking with her to the back yard. I looked up above the trees on the mountain behind the house and seen three rectangular lights in a triangle shadow moving slow with no noise at all. It was coming straight at me but then did an immediate u-turn and slowly went back over the trees. I knocked on the back door and had my wife come look at it and as soon as she seen it, it shot off very fast. It did make a sound like loud wind.