http://news.yahoo.com/crop-circles-appear-e-washington-wheat-field-200318016.html

He circles resemble a four-leaf clover and remind Cindy Geib of
Mickey Mouse ears. The design knocked down about an acre of their wheat. Some of
it could be salvaged by combines when the harvest starts in a week or two, she
said, but some will be lost.

"Of course, we don't have alien insurance," she said.