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Patuxent Wildlife Research Center
(PWRC)
PWRC Breeding Bird Survey
(BBS)
Comments/FAQ
(comments)
Patuxent Wildlife Research Center - Bird Population Studies
Analytical tools
Interactive route data summary
Interactive hierarchical model trend and annual index analysis
Community dynamics analysis
Mapdata and shapefiles-GIS
Wildlife related software
Survey results
Species group summaries 1966-2015
Trend estimates by species 1966-2015
Trend estimates by region 1966-2015
Distribution maps 1966-2015
Trend maps 1966-2015
CSV file:BBS Trend Estimates for Core Survey Area, 1966-2017
CSV file:BBS Annual Index Estimates For Core Area 1966 - 2017
CSV file:BBS Annual Index Estimates For Expanded Area 1993 - 2017
Archived versions of results from Prior years
Archived 1966-2013 results
Archived 1966-2012 results
Archived 1966-2011 results
Archived 1966-2010 results
Archived 1966-2009 results
Archived 1966-2008 results
Tools for learning about birds
Bird identification infocenter
Play the Patuxent bird quiz!
********** BBS trends 1966-2017 **********
First time user? Please visit
Help
and
Metadata
links below before proceeding.
Data▼
Core
Expanded
Scale▼
Surveywide
US/Canada
Bird Conservation Regions
States
Years▼
Start:
1966
-
+
End :
2017
-
+
Metadataⓘ
Help?
Hover over one of the 3 drop-down menu boxes and select data (core or expanded), scale (Surveywide, US/Canada, BBS regions, or states/province
s
)
Hover over an area for the trend. (Color symbol (
) indicates
credibility
)
Right-click in an area to get full trend analysis for the years selected.
Click in state (after clicking 'state' button) to show routes.
Click a route for trend for that route.
Please select the species:
Canada Goose [Branta canadensis]
Data:
core(1966-2017)
–
Scale:US/Canada
–
Years: 1966-2017
–
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