Controlling Birds should be Humane and Easy. We do not suggest killing any birds and Many birds like vultures, raptors, and others are protected by law. So repelling or making them uncomfortable is the best option. Whether its pigeons on a roof or swallows under a bridge, our products can help you solve your pest bird problem. Masterline stainless steel bird spikes feature a no-gap design, won’t cut or injure the installer and can bend 360 degrees without breaking and come in 4 different widths for all bird problem situations. Perfect for deterring Pigeons, Seagulls and larger birds.