Some of Philadelphia’s most iconic skyscrapers will soon go dark overnight as to protect migrating birds according to The Philadelphia Inquirer.
Birds can become disoriented by artificial lights which can throw them off migration paths or cause them to strike buildings and windows.
BNY Mellon Center, Comcast Technology Center, Comcast Center, Jefferson Center, One South Broad, One Liberty Place, Two Liberty Place, and 1515 Market Street have already joined Lights Out Philly.
Starting April 1 buildings participating will shut off their lights at the top of the buildings from midnight to 6a.m. until May 31 and then between August 15 and November 15.
Tenants of those buildings will also be asked to voluntarily turn off interior lights.