Third of N. America’s migratory birds at risk of extinction — A New Green World

The study released on Wednesday by the State of North America’s Birds says that over 430 of 1,154 bird species that live in and migrate among Canada, the United States and Mexico are most at risk of extinction. Data was collected through bird surveys and counts dating back to the 1970s and scientists analyzed the […]

via Third of N. America’s migratory birds at risk of extinction — A New Green World

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