Combines holography wind and light to irritate pest birds senses and create an quot;off limitsquot; zone against them. Irri-Tape quot;flashesquot; as it moves with the wind. Reflecting sunlight or any light it produces constantly changing colors and patterns. This brilliant flashing quot;ripple effectquot; is picked up by the bird pests as an unsettling danger signal. Whether seen as a predator (from a distance Irri-Tape has a reptilian sheen) or a rival for food or space birds will not ignore this potential menace. Irri-Tape s properties keep unwanted bird pests away in several ways. Hostile Sound Environment Pest birds are quot;rattledquot; by the fierce metallic noise the material gives off when caught by the slightest breeze.