Holographic iridescent diffraction foil drives away birds. Repel birds holographically, Irri-Tape bothers all of a bird's senses: Visual Scare: birds are scared by the material's sheen, as the light causes constantly changing reflections and shadows. Sound scare: birds are rattled by the fierce metallic noise irritape makes as it blows in the breeze. Physical Deterrent: birds are blocked by Irri-Tape and its brackets on any surface. Coverage: up to 1,000 Square Feet. Pests: pigeons, sparrows, starlings, crows, blackbirds, grackles, seagulls, swallows, woodpeckers, ducks, geese, predators and more Uses: yards, gardens, rooftops, parks, ponds, boat docks, private beaches, patios, balconies, any open outdoor area or any semi-enclosed area with access to light and wind.