Since you have real predators who may hunt during the day, I suggest you cover your tractor in 1/2 inch hardware cloth. Also, buy those auger kind of stakes like they use for dog tethers, and anchor your tractor down on the corners with those. if you move your tractor daily, just unhook the clips (use caribiners like for mountain climbing) move the tractor so the right side anchors are now on the left, pull up the left anchors and apply to the right. boom. protected tractor. This should give you some piece of mind. Understand we cannot be everywhere and I know some of us here still have to go to work away from our little feathered friends and that things sometimes happen no matter how hard we try to protect. If you do the above protection, only the coyote might be able to break in. Let us know if it helps.