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Why Chicagoans Should Turn Lights Off This Fall

Posted on September 14, 2023   |   Updated on September 30, 2025
Sidney Madden

Sidney Madden

A bird flies over from Montrose Harbor in 2022

A bird over Montrose Harbor in 2022. (Beata Zawrzel / NurPhoto / Getty)

About 5 million birds are expected to migrate over Chicago via the Mississippi Flyway, a migratory route between Canada and South America.

But not all birds make the journey: Some get injured or die along the way.

A member of Chicago Bird Collision Monitors and an injured bird on Clark and Monroe in 2009

A member of Chicago Bird Collision Monitors and an injured bird on Clark and Monroe in 2009. (Michael Tercha /  Tribune / Getty)

How Chicagoans Can Make Birds’ Trips Easier

Turn off your lights after 11 p.m. if you live in a tall or short building along the lakefront, which are often along flight paths. Some birds continuously circle the buildings and die from exhaustion or collision.

Call the Chicago Bird Collision Monitors if you find a dead or injured bird at 773-988-1867.

Where to See Birds Migrate

see more:nature

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