Our Bird Blinder fake owl is perfect as a decorative addition to your garden! This device has a motion detector on its feet and will detect light and shadow changes when activity occurs nearby. Once activated, it will turn on its flashing eyes and realistic sounds. The sensor working area is 10ft, and the angle is about 55 degrees. The bottom battery compartment fits 3x AA batteries (not included). Our owl can be fixed to solid surfaces like fences (the screwdriver is not included).