Location: Phoenix, Arizona
Detailed Description: "We first noticed it while sitting in our backyard. black object moving slowly from ne to sw very strange shape looking like a figure with wings. my wife commented that it looked a a giant bumble bee. we used binoculars and video taped. confirmed odd shape looking like object was spinning as it was moving. it was an overcast evening but object was very defined in black. clouds were moving opposite direction. no noise could be heard, moving under clouds about a mile up. this object looked like a giant transformer."
Source: Mufon case file nº107093