We had a possum once trap a rooster and a pullet in one of our pens. He ate everything....feet, feathers, beak, everything. On both birds. He was so full he couldn't move. We found him asleep in a plastic trash can that had straw in it. My daughter flung him and the can as far as she could out the door. The can rolled down a hill and spun him out. He staggered away and never came back.....although it may have been that eating that much simply killed him.