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This April 14, 2019 file photo shows a western meadowlark in the Rocky Mountain Arsenal National Wildlife Refuge in Commerce City, Colorado. (AP Photo / David Zalubowski, File)

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.

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A piping plover on Waukegan Beach in 2018. (Ethan Ellis / Flickr)

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.