Biological UFO object filmed in night vision over Denver Colorado

Date of sighting: June 20, 2012
Location of sighting: Denver, Colorado, USA


Eyewitness states: 
Looks like a biological object that is about 8000 feet high, as my optical lens is at eight times magnification. This object hovers and changes direction three times and then moves on. I think that it may be a huge hovering bird, or a gigantic humming bird. Your guess is good too !! This was recorded over Denver Colorado at 2.20 am June 20 2112.