re: "Extraordinary claims require extraordinary proof." - Marcello Truzzi
I've done this in previous years, so it would be redundant.
The huge 400 circle formation at Wansdyke back in 2001 that was 900 ft. across was one of them.
And the huge Julia set that appeared right next to Stonehenge in the middle of the day back in July of 1996. It was spotted by a pilot in the afternoon while out flying tourists over the neolithic sites who had just been over that same area 30 minutes before, and there was nothing there.
About 80% of the crop circles are man made, but not all. Formations have shown up in secure areas of the Royal Grounds AND UK military bases.
Here's a brief clip of that pilot, Busty Taylor describing other anomalies which he has <seen.>