Over 1,000 Birds Injured or Killed in Chicago Building Collisions

• Over 1,000 birds were injured or killed in Chicago and Evanston after colliding with buildings.
• The incident occurred during a peak fall migration period in October.
• Millions of migratory birds passed through Cook County over the weekend due to favorable weather.
• Chicago is situated along a major migratory path in North America.
• Bird-safe measures, such as patterned glass and exterior screens, can help prevent such incidents.