Droppings of birds are acidic in nature causing permanent and irreversible damage to the surface and hence Bird Spikes are used to preventing birds from landing without affecting them any injury or killing them thus proving effective humane method without harming them.
Bird spikes are designed to shield thin ledges or to guard the foremost edge of a much broader surface. Bird Spikes can be attached to support structures, roof perimeters, beams, air conditioners, poles, building projections, etc