nikon_jon wrote:
Hazelnut or acorn? They look a lot alike and unless you live where hazelnuts are grown, I am going to say it was an acorn, which is the fruit of an oak tree. Though the two nuts look much alike, the acorn is toxic. It contains high concentrations of tannin. I would say your benefactor or culprit, as the case may be, was a squirrel.
It's a hazelnut. We have lots of hazelnut trees in the area, it's actually a major crop around here.