Not as much fun to build and deploy, but equally effective is pigeon-repellent adhesive. It prevents the birds from landing on treated surfaces and is not too u

Not as much fun to build and deploy, but equally effective is pigeon-repellent adhesive. It prevents the birds from landing on treated surfaces and is not too unsightly. https://www.nixalite.com/product/4-the-birds-gel-repellent https://www.nixalite.com/product/4-the-birds-gel-repellent