Larger pest birds like pigeons, crows or gulls love to gather in the many nooks and crannies of a structure or building. They’ll land on signs, rooftops and windowsills to roost and nest, creating quite a mess. A single pigeon, for example, can excrete up to 25 pounds of droppings every year. Federal, state and local wildlife protection ordinances forbid the use of lethal or harmful bird control measures against many types of birds. So what can you do? Increasingly, many facilities and property managers have installed one of the most popular and effective bird control measures on the market—the Bird Spike. These humane bird proofing devices are widely used throughout the world. And they’re now available in a variety of types, sizes and colors.