After attempting different showers and spiked obstructions, this formula dealt with our feathered creature issue right away. We had around 20 enormous pigeons settling and crapping over the front of our home. We would wash down the house since we were unable to remain to view at the droppings as we drive in however dont need to any longer. We end up being in a transitory way and dont need the little colleagues hurt. Much obliged and we will arrange more. Strongly suggest Pro Bird Control Long Island!!