Which season? This is like the 5th in England and about 15th worldwide, not counting all of the unreported formations. Go back to the CCC and look at the whole site. SMH
What about this one, reported on the 7 May 2011?
...the 2011 stats are here...
This symbol is almost identical to the symbol on the side of Thor's hammer in the film released around the same time as the crop circle's appearance.