Think Out Loud

On Saturday, Portland Audubon celebrated their annual event Lights Out. Each fall, billions of birds begin their migration south. The majority fly at night and use the night sky for navigation. Light pollution from cities can disorient birds and confuse their navigation, resulting in collisions with buildings or windows. Portland Audubon BirdSafe Campaign Coordinator Mary Coolidge explains the health risks for birds and humans from overnight exposure to artificial light.