We just got our Christmas tree yesterday. It is a chemical free Frazier fur. I read on another post that rabbits can safely nibble a bit on pine. I had originally thought it was off limits like cedar. Now I am wondering if anyone knows how much is safe? Our rabbits are so excited about this tree and keep cleaning up the scrap needles that fall. While they are not setting down for a full meal or going after the branches, I feel like they are nibbling quite a bit. Aside from not letting them get too much too soon, are there any risks here?