|Dedicated to Chandler S. Robbins, originator of the survey, to honor his 60 years of government service|
Most Recent Update: 13 October 2007.
(1) This is an archived version of the 1966 - 2006 analysis. Remember the disclaimer! Some interactive portions of the program are no longer supported, and may not be fully operational.
(2) There are probably a few species naming issues that lead to empty result pages.
(3) Maps (e.g., distribution maps) have not yet been updated with 2006 data. Older versions are still available, so please note the time periods covered by each set of maps.
(4) Some species are grouped for analysis. These are indicated on the selection lists.
(5) Data for annual index graphs are now listed below the graphics in the regional and species-specific trend results.
(6) Credibility codes for trend estimates updated on 6/03/2005 in response to user comments.
(7) Earlier versions of the web site have been archived, and are accessible via links.
(8) Trend results are now highlighted to indicate significant population declines or increases.
(9) Analysis revision (10/13/2007): Annual indices revised for BBS strata, and summary display of gull results fixed.
Summary information on population change by region and time period
This program allows you to display trends for 3 time intervals, by species. Indices are provided as links from the species names
This program allows you to display trends for 3 time intervals, by region. Indices are provided as links from the region names
These are relative abundance maps, estimated over the interval 1994-2003.
These are maps of population change, based on the 1966-2003 interval.
This link takes you to the population change analysis results for bird conservation regions.
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!)
This program provides access to all information, for any species, on any BBS route. (Now updated for 2006) New:For US routes, we now provide summary information on remotely-sensed habitat data.
This program allows you to estimate population change for any species and time interval (1966 - 2006), in any region covered by the BBS
This program is for estimation of species richness from BBS data using capture-recapture based estimation procedures.
This link leads to a website that allows users to download GIS data for the BBS.
This link transfers you to the Bird Identification InfoCenter, in which is contained pictures, songs, and identification tips of most North American Bird Species.
Test your skills of identifying North American bird songs, pictures, and breeding and wintering distributions.
For More Information
Visit the Breeding Bird Survey Operations Web Site