Archival Version of 1966 - 1996 Analysis
Summary results are available, but interactive features for data
analysis have been removed.
Most recent data and interactive analysis programs can be accessed through
|Dedicated to Chandler S. Robbins, originator of the survey, to honor his 50 years of government service|
Please cite this Page as:Sauer, J. R., J. E. Hines, G. Gough, I. Thomas, and B. G. Peterjohn. 1997. The North American Breeding Bird Survey Results and Analysis. Version 96.4. Patuxent Wildlife Research Center, Laurel, MD
Most Recent Update: 29 July 1997.
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General Information About the North American Breeding Bird Survey
Survey Results for the Period 1966 - 1996
Summary information on population change by region and time period
This page allows you to display trends for 3 time intervals, by species.
These are relative abundance maps, estimated over the interval 1982-1996.
These are maps of population change, based on the 1966-1996 interval.
These maps are based on BBS data from Alaska.
These lists provide mean abundances for all species encountered on the BBS in a state/province, summarized by physiographic region.