Bird-X designed this predator decoy to scare away pesky birds! This realistic-looking Peregrine Falcon model stands 15-1/2 inches tall and features reflective eyes. A hollow bottom allows for the addition of sand or gravel for added stability. This decoy provides an easy and effective solution to your bird problem. Simply remove the stopper, fill the hollow bottom with sand or gravel, and place in a location visible to birds. Use the Bird-X Falcon Decoy to scare away many types of birds including pigeons, gulls, blackbirds, and starlings. This decoy uses no chemicals, so you can confidently use it around pets or children!