Bird control systems can be quick and easy to install. The wall between these residences was a favorite perching place for birds, who left a mess on the wall and patios below. With just 30 feet of Birdwire, the installer solved the problem. He used a masonry bit to drill holes for the Birdwire posts into the brick three inches apart. Birdwire is one of the least expensive and least visible of all bird deterrent devices.