Coloradans are being asked to dim their lights to aid millions of birds flying over the state each night amid the annual fall migration.
Every year, billions of birds migrate north in the spring and south in the fall. Nearly 80% of birds that migrate do so at night, often navigating by starlight, according to the National Audubon Society. However, artificial light from humans can disorient the birds, throwing them off their migration path and sometimes causing them to collide with buildings or windows.
“Our artificial lights are a big problem for them,” Richard O’Brien, the chair of Lights Out Colorado, said in an email. “They have amazing journeys, sometimes thousands of miles to South America. It’s time to remind our neighbors: Turn out unneeded outdoor lights, each night for at least the next month.”…