Birdguard - Bird Spikes Our Birdguard range offers a humane way of preventing birds from landing on ledges, roofs and buildings. Made from high quality UV stabilised polycarbonate, they are also easy to install. So why rely on expensive pest companies when you can save thousands of rands installing bird spikes yourself? All you need are some Birdguard bird spikes , which come in a variety of colours, some silicone glue, screws or a few cable ties from your nearest Leroy Merlin hardware. Our bird spikes are flexible so they can be installed on rounded corners. Do it yourself and save money!