Bird spikes are a 100-percent effective, maintenance-free and permanent solution to pest bird infestation. Install bird control spikes on common bird landing surfaces, such as rooftop edges, ledges, window sills, chimneys, or anywhere pest bird roosting and nesting occur. Whether you’re looking to deter pigeons, sparrows, starlings, woodpeckers or other species, bird deterrent spikes are a guaranteed way to prevent these pests from landing on your property, eliminating pest damage and liability.