We were in a central European forest last weekend and discovered a few places where a bunch of sticks were leaned against a tree. They build kind of a circle so that it looked like a small hut. However, this can't be the purpose of them, cause they weren't pretty close to each other (so they are holey and thus wouldn't serve as a roof).
I've made a little sketch (wasn't able to take a photo :/):
There were quite a few of them. We've discovered at least three.
What's the purpose of such "buildings"?
Edit:
The room "covered" in those sticks was pretty small. So the shelter theory would only work for kids.
Edit:
As far as I can remember they were leaned against a pine. At least not against a fruit tree.