U.S., Canada have lost 3 billion birds since 1970. Scientists say ‘nature is unraveling.’
Pete Marra remembers birdwatching in the woods behind his childhood home in Norwalk, Connecticut, in the 1970s, gazing up at common nighthawks as they extended their long, pointed wings and soared through the air. “They were these aerial acrobats,” he said. “They did ballet.”
By the time he got to high school, the woods had been cut down to make room for houses, and the nighthawks had begun to disappear. Today the bird has all but vanished from his old neighborhood.