Patuxent Wildlife Research Center (PWRC)    Migratory Bird Research (MBR)    Comments/FAQ(comments)

The North American Breeding Bird Survey Results and Analysis 1966-2002
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, and J. Fallon. 2003. The North American Breeding Bird Survey, Results and Analysis 1966 - 2002. Version 2003.1, USGS Patuxent Wildlife Research Center, Laurel, MD

Most Recent Update: 20 May 2003.

Technical notes:
(1) This version of the BBS website is the archived 1966 - 2002 analysis. Some interactive portions of the program are no longer supported, and may not be fully operational. (2) This site has been reviewed by Patuxent staff and others, but remember the disclaimer! Please let us know about errors or other issues that limit the use and value of this site.
(3) There are probably a few species naming issues that lead to empty result pages.
(4) Some 1966 - 1996 analyses (e.g., distribution maps) have been retained here, but most of the trend results from earlier analyses have been moved to archives.
(5) Some species are grouped for analysis. These are indicated on the selection lists.
(6) Earlier versions of the web site have been archived, and are accessible via links.

General Information

Survey Results

Species Groups: Analysis of Change for Species Groups
Summary information on population change by region and time period

Interactive Species Trend and Indices Program
This program allows you to display trends for 3 time intervals, by species. Indices are provided as links from the species names

Interactive Regional Trend and Indices Program
This program allows you to display trends for 3 time intervals, by region. Indices are provided as links from the region names

Abundance Maps-Spatial Patterns of Bird Abundance
These are relative abundance maps, estimated over the interval 1982-1996.

Trend Maps-Spatial Patterns of Bird Population Change
These are maps of population change, based on the 1966-1996 interval.

bcr analysis
This link takes you to the population change analysis results for bird conservation regions.

Interactive Checklists

Relative abundance maps
This program allows you to estimate mean abundance from BBS data for any species, at any location in the survey area. (This now includes Alaska!)

Analytical Tools

Interactive Route Data Summary
This program provides access to all information, for any species, on any BBS route. (Now updated for 2002)

Interactive Route-regression Trend Analysis
This program allows you to estimate population change for any species and time interval (1966 - 2002), in any region covered by the BBS

Program Comdyn
This program is for estimation of species richness from BBS data using capture-recapture based estimation procedures.

Learning Tools

Tools for Learning about Birds
This link transfers you to the Bird Identification InfoCenter, in which is contained pictures, songs, and identification tips of most North American Bird Species.

Play the Patuxent Bird Quiz!
Test your skills of identifying North American bird songs, pictures, and breeding and wintering distributions.

The Migratory Bird Research Home Page
Visit the USGS Patuxent Wildlife Research Center Web Site

For More Information

The BBS Operations Home Page
Visit the Breeding Bird Survey Operations Web Site

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