Polka-dotted window film was applied to windows at McCormick Place last summer ahead of the fall migration. The drop in collisions is a victory for the birds, bird advocates and the building and a model that other glass-walled Chicago buildings could emulate.

Since bird-safe film was added to the massive windows at McCormick Place’s Lakeside Center in summer 2024, bird collisions have dropped by over 95%.

Birds have nearly stopped colliding into the McCormick Place Lakeside Center. Since bird-safe film was installed on the building’s windows last summer, collisions into the mostly glass structure are down over 95% during the recent fall migration compared with previous seasons,