Bird B Gone bird spikes have been recognized worldwide as an effective anti-perching, anti-roosting bird deterrent. Most spikes feature a built-in glue tough and pre-drilled mounting holes to simplify installation using commercially available glues, screws or tie downs. The spikes are blunted at the tips so they won’t harm birds, curious pets or installers, and they have been approved by a number of humane groups—including the U.S. Humane Society. Bird B Gone’s ever-growing variety of bird spikes now include a variety of plastic and stainless steel spikes,