These spikes will discourage the pigeons from landing about the railing and could make it tough for them to perch. You may as well use a pigeon repellent to maintain the pigeons away from the balcony. Hello, My name is Josh Bloom. I am very pleased to generally be Common https://judahzh1j1.bloggosite.com/37750409/5-easy-facts-about-how-to-install-a-pigeon-repellent-in-qassim-described