Third of North American Birds Said to Face Extinction Due to Climate Change, Other Man-Made Factors

A new report published by North American Bird Conservation Initiative says that 37 percent of all migratory bird species on the continent are at risk of extinction due to a myriad of harmful environmental factors including climate change, sea-level rise, land development and oil spills.

The report includes a section called the Species Assessment Summary and Watch List, a chart that ranks the 1,154 native species of birds in Canada, the U.S., and Mexico by level of concern.

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