On September 11, two powerful beams of light once again projected more than four miles into the night sky from Lower Manhattan. Known as the Tribute in Light, this annual light installation beautifully honors the thousands of lives lost on September 11, 2001. The Tribute is a stirring and fitting reminder of the tragic events of 9/11, but it can also be a hazard for hundreds of thousands of migratory birds that travel through the city under the cover of darkness during their fall migrations. Birds are attracted to light, and can end up trapped in the Tribute’s powerful beams—circling, calling, and wasting precious body fat that fuels their migratory flight.