I have a piece of ground in NW MO that a neighbor did the same thing. All their timber bordered a lot of my property and I thought that would really screw up the deer.... Had quite the opposite effect. alot of huge piles of treetops in the deer bed in and feel safe around. I regularly watch the deer climb up into the piles making all kinds of racket. This was done 3 years ago... deer were effected in a positive way in my opinion