Something is DIgging up my sunflower and corn seedling, even sunfloweres that are 8 in tall. I come out to find a stem lying on the ground which appears to be broken off at the root and a small whole. I recently put a 6.5 foot fence around it and I didnt see that it was breached anywhere and zero tracts. I am assuming its birds. best solutions? I have heard CDs, fishing line?