CHICAGO — Turning out the lights at McCormick Place could save more than just money.

According to a new study in PNAS based on decades of data, it will also save the lives of birds prone to flying into the building and dying.

Two hundred birds die per night during migration season because they’re drawn to the windows by the lights.

Researches say if the convention hall turns off half the lights, it will reduce bird deaths by sixty percent.

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