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A flock of red-winged blackbirds over Long Island, N.Y.CreditCreditVicki Jauron, Babylon and Beyond Photography/Moment, via Getty Images

Thanks to the authors of this op-ed for a bit of clear thinking:

The Crisis for Birds Is a Crisis for Us All

The mass disappearance of North American birds is a dire warning about the planet’s well-being.

By John W. Fitzpatrick and 

Dr. Fitzpatrick is the director of the Cornell Lab of Ornithology. Dr. Marra is the director of the Georgetown Environment Initiative.

19Fitzpatrick2-jumbo.jpgA male Baltimore Oriole. Steve Maslowski/Science Source, via Getty Images Plus

Nearly one-third of the wild birds in the United States and Canada have vanished since 1970, a staggering loss that suggests the very fabric of North America’s ecosystem is unraveling.

The disappearance of 2.9 billion birds over the past nearly 50 years was reported today in the journal Science, a result of a comprehensive study by a team…

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