Lights Out in SF Buildings to Save Birds

City-owned buildings in San Francisco are going dark -- for the birds.

Migratory fowl are susceptible to bright lights in the big city. Birds often collide with the shining beacons from skyscrapers, so "most" city-owned buildings have signed on to the Lights Out For Birds campaign, which dims buildings in order to protect birds, according to the San Francisco Examiner.

Nearly each one of the 10 city-owned buildings in San Francisco that are 10 or more stories tall have agreed to dim or turn off the lights at night, according to the report.

About 250 species of birds migrate around the Bay Area at night, according to the Department of the Environment, and can easily be thrown off course by "urban lights."

"Tens of millions of bird deaths per year nationwide" are due to buildings, officials said.

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