FILE - Birds fly in a colorful sunrise sky near the One World Trade Center tower seen from The Heights neighborhood of Jersey City, N.J., Friday, Dec. 11, 2015. A new study finds that more than 1 billion birds are killed annually in the U.S. in collisions with windows. (AP Photo/Julio Cortez, File)
FILE - Birds congregate around office buildings as the sun sets on North Dallas, Tuesday, Dec. 17, 2013. A new study finds that more than 1 billion birds are killed annually in the U.S. in collisions with windows. (AP Photo/LM Otero, File)
FILE - Starlings gather on power lines at dusk on Thursday, Oct. 20, 2022, in Overland Park, Kan. (AP Photo/Charlie Riedel)
FILE - A seagull rests on a light pole in the Inner Harbor in Baltimore on June 16, 2010. A new study finds that more than 1 billion birds are killed annually in the U.S. in collisions with windows. (AP Photo/Rob Carr, File)
FILE - Birds fly as a woman rides her bicycle in Chicago on Feb.1, 2013. A new study finds that more than 1 billion birds are killed annually in the U.S. in collisions with windows. (AP Photo/Nam Y. Huh, File)
Birds fly near a church in Wehrheim near Frankfurt, Germany, on a foggy Tuesday, Sept. 3, 2024. (AP Photo/Michael Probst)