WhirlyBird Repeller "Breeze Bird Repeller in the shape of a bird of prey, that spins, wobbles and reflects light. Discourages birds from perching, roosting and nesting. Intended for use in areas with lighter winds than WhirlyBird Repeller "Pro" Produces constantly changing conditions that helps keep birds from becoming acclimated. Made in the USA and successfully tested and used by the U.S. Coast Guard. Uses wind and sunlight, and is slightly larger and lighter than our original WhirlyBird "Pro" model.