Industrial-Power Adhesive: This adhesive is suitable for outside use and assures a strong bond between the spikes as well as area. Use Chicken Spikes: Install fowl spikes on ledges, roofs, together with other surfaces where pigeons choose to perch. These spikes are harmless but make it not comfortable for pigeons https://knox3ajsa.angelinsblog.com/30492382/the-2-minute-rule-for-how-to-install-a-pigeon-repellent-in-unaizah