Atlanta Audubon Society is working with local businesses on a "Lights Out" campaign aimed at saving migrating birds.
The nonprofit's conservation director, Adam Betuel, says up to 1 billion birds die each year when they fly into buildings. Excessive nocturnal light is one of the main causes of those deaths.
In the last two years, Betuel and a few dozen volunteers have documented 80 species of birds that died after flying into local buildings.
"We know this is happening, we know nocturnal light plays a role, and we know that by turning [lights] off, it can result in serious declines in the numbers that are running into a building," Betuel said.
Businesses and homeowners are encouraged to join the effort, which now includes roughly 100 residences and 15 commercial buildings.
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