Location: less than five miles from home at friends house. Last night and approx the same time four nights earlier, sounds of a single helicopter moving slowly over neighborhood brought us out to look. In both cases helicopter following 1/2 mile or less behind very small glowing orb above the house line in a west to east then north east path. Slow, silent, non-erratic path. No red or green indicator lights visable from side or aft on orb. Red starboard light on helicopter visable. First night orb seemed to just vanish. Second time orb and helicopter went out of sight and earshot. Will try and keep video cam handy over the next week. ---