Every year thousands of birds are killed or injured in downtown areas. You can help. Depending on the weather, tens of thousands of birds can fly over Chicago in a single night.
Birds become confused by bright lights and can lose their way.
Many crash into brightly-lit skyscrapers and become injured or die. As some building owners know, a hundred birds might be killed at one building on a night of heavy migration. Migration is a challenge we can make easier for birds. Celebrate the migration season by dimming building lights. It will reduce bird injury and mortality, and save energy and money.