Bird & Pigeon spikes, deterrents & repellent Fire Gel
Deterring birds from sills and ledges can be a big problem. However, you don't have to spend a fortune and with a little DIY, you can prevent birds from congregating. Bird repellent spikes are a favourite and create a physical barrier to stop pigeons from landing. The fire gel product really works and lasts for many months. Or you can invest in an electronic bird repeller to keep pigeons off balconies etc.