Decline of the North American avifauna

Decline of the North American avifauna

By Kenneth V. Rosenberg, Adriaan M. Dokter, Peter J. Blancher, John R. Sauer, Adam C. Smith, Paul A. Smith, Jessica C. Stanton, Arvind Panjabi, Laura Helft, Michael Parr, Peter P. Marra

Science : 120-124

The cumulative loss of nearly 3 billion birds since 1970 across North American biomes signals a continuing avifaunal crisis.

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