A long and nice record of the Strange Sounds in the Sky. These bursts were recorded yesterday, the 17th of September 2012, in the backyard of a townhouse in St-Louis, USA. The sound is scarry, metallic as if somebody was hammering on a piece of aluminium.
This kind of sound was alos recorded last month in the UK. I believe it is real! Have you already heard something like this around your place?