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Cornell Lab of Ornithology

  • Migrating shorebirds at Kimbles Beach, N.J. Researchers estimate that the population of North American shorebirds alone has fallen by more than a third since 1970.
    North America Has Lost 3 Billion Birds, Scientists Say
    Nell Greenfieldboyce
    Researchers estimate that the bird population has fallen by a quarter since 1970. More than 90% of the loss can be attributed to just a dozen bird families, including sparrows, blackbirds and finches.