I was at my parent's house, and I have seen these things more than once before there. I often see them when I am on the back deck having a cigarette, often late at night and into the early hours of the morning is when I see the objects. From a distance they look as if they have a part that separates from the main light, which always has blue, green and red lights that change the way they flash, but you can clearly see it seperate and then retract back into the main part. I have observed them with binoculars and have attempted to take photographs with a long lens on my digital SLR camera which was sitting on the tripod to help eliminate camera movement. I have included the photos I have most recently taken. There are several, and I could only include 10 but will be happy to pass them all on.I also often hear things moving in the woods at the back of my parents house before. I hear footsteps quite distinctly sometimes out there. I don't know what this noise is caused by.