Was at my uncles house in wagner, sd when my cousin and i Came outside to have a smoke, soon after we came outside my cousin and myself noticed flashes of light which at first we thought were coming from the airport near by,but the object then appears in a tree about 20ft from us, flashing the entire time,it came down to our level and flashed 5 times it was a blue/white light as we watched I noticed that the flashes seem to make whatever it was look like a very small classic ufo shape(saucer), and just as it appeared it disappears..i can honestly say that it did not make me feel fear I was more amazed, my cousin and I looks at each other and we both said, "what the hell was that?" When the object wasn't emmiting light I couldn't see whatever it was evn though it was right in the driveway with street lights lighting the area.