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.
SETH BORENSTEIN and CHRISTINA LARSON, Minneapolis Star Tribune: World
Thu, 09/19/2019 - 2:19pm
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.