Bird B Gone Plastic Bird Spikes are made from UV stabilized plastic material and available in 7 different colors. Plastic spike strips stop pigeons, seagulls and larger birds from perching, roosting, and sitting on unwanted surfaces. Our plastic spikes are ideal for commercial installers & residential DIYers alike. Discover what makes these fully plastic bird spikes the best in the industry. Not recommended in areas where birds have been nesting or for small birds.