What's that tiny pen for?

An addition to the FAQ page:

First time visitors to TREES almost always ask what the small pen at the far end of the front field is for.

That little pen is our Groundhog Paddock. When the front field was first fenced for horses, we tried to encourage out little friend to move on, filling the holes with everything from plain rocks and dirt to used cat litter (which we were assured would be a foolproof deterrent.) Time after time, though, Madame Groundhog re-dug and meticulously cleaned her home and stayed put.

After months of battling,