Deer can jump real high as we all know. There is this 20 acre water well field that is all fenced in, close to where I currently live. It is at least 6' chainlink toped with three strands of barbed wire and is full of hay and grass. It must be topping 10' tall. I always notice big bucks and doe in it feeding as I drive by and it amazes me everytime that they can clear that height. A few months back I came across a young buck that got tangle up and the buzzards, coyoties and wolves had a go at him.