A smoother alternative is to use a “Slinky” toy, available from department and toy stores. [5] X Research source Spread it out along the handrail of a balcony, with the coils not more than 1 1⁄2 inches (3. 8 cm) apart. Wire it (or use duct tape) in place every 8⁄12 inch (1. 7 cm). The pigeons hate it because it makes the surface uncomfortable for them to land on.

You can bend this rule if you’re using pigeon birth control, which relies on the flock mentality and long memories for long-term effectiveness. [8] X Research source

You can further prevent access to your attic by trimming tree branches that grow close to your roof. It can help to seal the “bird block” outside of your home—this is a thin mesh screen that birds often peck and pull out, which gives them access to your attic. Seal it up with a piece of 1⁄4 in (0. 64 cm) mesh screen that’s cut to the same length and width as the bird block. [10] X Research source