Bike!

Some less welcome wildlife at my allotment. This appeared, surprisingly quickly as I tidied up that area only a few weeks ago. I'd prefer to not have to destroy them, it depends on how much of a nuisance they become.

The whole thing is about the size of a large honeydew melon, the flange sticking out at the bottom is flat and makes a landing platform for the entrance at the other side (which you can see here - Entrance not such a great photie, but I wasn't risking getting too close!)