Bird-X bird spikes are a 100% 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 are a problem. Bird spikes are discreet – they are nearly invisible from a distance, silent, and require no power supply. Bird control spikes do not harm birds – they are a humane alternative that make surfaces uncomfortable and uninviting. Bird spike strips are a guaranteed way to prevent pest birds from landing on your property, while eliminating pest damage and liability.