Dedicated to Chandler S. Robbins, originator of the survey.
Please cite this Page as:Sauer, J. R., J. E. Hines, J. E. Fallon, K. L. Pardieck, D. J. Ziolkowski, Jr., and W. A. Link. 2012. The North American Breeding Bird Survey, Results and Analysis 1966 - 2011. Version 12.13.2011 USGS Patuxent Wildlife Research Center, Laurel, MD
Most Recent Update: 22 February 2013.
This website presents population change information for more than 400 species of North American birds, as estimated from the North American Breeding Bird Survey. Estimates of trend (interval-specific estimates of population change), annual indices of abundance, and maps of abundance and population change for these species are presented for a variety of regions.
This website contains the first public copy of 1966 - 2011 BBS analysis results. Although it has been reviewed, we caution users that errors can develop in interactive programs and summary analyses. See our disclaimer for additional cautions.
We welcome comments on the results presented here. Public review and feedback of the results are a critical part of the scientific review of the website, and we thank you in advance for taking a careful look at these summaries.
Note that bird species names have been updated to conform to the most recent AOU Checklist Update .