I had seen a black object is all i know. with no lights and no noticible sound. There was a soccer game at rotary park, my friend lives close by on the same street as rotary. I was outside smoking a cigarette and looking towards the soccer game when i seen an all black object fly above the soccer game and i only saw it because it was moving fast and the lights from the soccer field reflected off the bottem of the craft until it went to far and dissapeared in the darkness . now knowing that you need lights on to fly in a city i thought this was purculer. So about 10 minutes later my friend and i left and there was a helicopter with a search light fly the sane direction of the craft right over the park. It then flew about half a mile more and increased altitude and stayed in the sky with its spotlight on until we drove away and i couldnt see. Ok this seems a little much but the following 2-3 days the skies above laughlin and bullhead city had many helicopter! like lights flying for hours in the same back and fourth areas . there was one light in perticuler that was RED and would dim out and back on all night.