Beaver Wars

When we bought our farm, we were assured that this pond had never gone dry and, sure enough, it did not during the 2011 drought. This year the water level has increased by two feet. The pond drains out to a small creek to the west side in a heavily wooded area and we have assumed for some time that a dam had been built on that creek, and we theorized that beavers were the experts at work. Now we know. We planted this cypress ten years ago, so that beaver has started a war.
Beaver pelts anyone?