Bird B Gone MMSS-GRD/D Sonic Shield Sound and Light Pest Repellent Bird B Bone Sonic Shield pest deterrent is a safe and humane way to scare birds and unwanted critters away. This pest deterrent is frequently used to scare birds, deer, raccoons, skunk, rats, and rabbits. Uses a sequence of light and sound to scare pests away from your property Two modes of operation for around the clock protection Bird B Bone Sonic Shield pest deterrent is small, portable, simple to operate; uses (4) AA batteries (not included)