Nearly 600 million birds are killed annually in North America due to collisions with buildings. A new Illinois law mandates bird-friendly design for state buildings.

North America’s skies are lonelier and quieter as nearly 3 billion fewer wild birds soar in the air than in 1970, a comprehensive study shows.

Organizers of Mamby on the Beach want to move the music festival to Montrose Beach, but conservationists are pushing back because of two endangered birds living at the site.