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It is estimated that a billion birds die and countless others are injured each year in North America as a result of window collisions!


Chicago Bird Collision Monitors (CBCM) is an all-volunteer conservation project dedicated to the protection of migratory birds through rescue, advocacy and outreach.

CBCM works to protect and recover migratory birds that are killed and injured in the downtown Chicago area each spring and fall migration. Confusing lights and glass building design cause thousands of birds migrating along the lakefront to collide with downtown buildings. Our teams spend the early morning hours recovering these birds to save the injured and document the fatalities that have occurred.

We promote bird-safe lighting and building design to reduce bird collision hazards. Our project collaborates with building management, architects, planners and the public to prevent bird collisions.


Fall migration has started!

Attend one of the upcoming Chicago Bird Collision Monitors training classes to learn how you can participate in our rescue and conservation work.

Training Schedule

CBCM and Willowbrook Wildlife Center in the news

Daily Herald article

Quigley, Griffith Introduce Bipartisan Legislation to Prevent Millions of Bird Deaths

Press Release

Please click the link below and support this bill

Support This Bill

Thank you for helping us help the birds.

Chicago Bird Collision Monitors (CBCM) is an all volunteer bird conservation project that operates under the auspices of
the Chicago Audubon Society.

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© 2012 Chicago Bird Collision Monitors