The North American Breeding Bird Survey, Analysis Results 1966 - 2021
Dates
Publication Date
2022-12-29
Start Date
1966
End Date
2021
Citation
Sauer, J.R., Link, W.A., and Hines, J.E., 2022, The North American Breeding Bird Survey, Analysis Results 1966 - 2021: U.S. Geological Survey data release, https://doi.org/10.5066/P9SC7T11.
Summary
This data product consists of a database of population change and abundance estimates for North American birds, estimated from North American Breeding Bird Survey (BBS) data. Data are presented for 548 species of birds in 4 spreadsheets containing trend estimates and annual indices for 2 time periods. Estimates are derived for each species using the 1 of 4 alternative models, and a cross-validation model selection procedure was used to select the best model for each species.
Summary
This data product consists of a database of population change and abundance estimates for North American birds, estimated from North American Breeding Bird Survey (BBS) data. Data are presented for 548 species of birds in 4 spreadsheets containing trend estimates and annual indices for 2 time periods. Estimates are derived for each species using the 1 of 4 alternative models, and a cross-validation model selection procedure was used to select the best model for each species.
Click on title to download individual files attached to this item.
BBS_1966-2021_core_trend.csv “Long-term (1966 - 2021) population trend estimates for the BBS core area.”
2.19 MB
text/csv
BBS_1993-2021_expanded_trend.csv “Trend estimates for the interval 1993 -2021 for the expanded BBS area”
2.61 MB
text/csv
BBSAnalysis_Results_Metadata_1966_2021_12292022.xml “Metadata for the BBS 1966 - 2021 analysis” Original FGDC Metadata
View
97.87 KB
application/fgdc+xml
Eastern Bluebird Annual Indexes 1966-2021.png “Annual indexes of Eastern Bluebird (Sialia sialis). for the core survey area.”
9.49 KB
image/png
index_1966-2021_core.csv “Annual indexes of abundance (1966 - 2021) for the BBS core area”
51.73 MB
text/csv
index_1993-2021_expanded.csv “Annual Indexes of abundance (1993 - 2021) for the expanded BBS area.”
21.39 MB
text/csv
Purpose
These data files and associated web-based summary programs are designed to provide public access to analysis results from BBS data. See the North American Breeding Bird Survey Dataset (https://www.sciencebase.gov/catalog/item/52b1dfa8e4b0d9b325230cd9) for information on the most recent data release from the BBS. The BBS is hosted by the Eastern Ecological Science Center (EESC, https://www.usgs.gov/centers/eesc). Primary results are provided in spreadsheet form, and are described in this metadata. A supplemental website presents the results in alternative summary formats. A statement regarding the elements of the website, and a general discussion of the methods, is available at (http://www.mbr-pwrc.usgs.gov). Analysis of survey data can be controversial, and any user of the information should recognize that alternative approaches exist. These results are based on methods that have been peer reviewed and exist in the published literature; the most recent reference for the methods is found in Link et al. (Link, W. A., J. R. Sauer, and D. K. Niven. 2020. Model selection for the North American Breeding Bird Survey. Ecological Applications 30(6):e02137. 10.1002/eap.2137). Users also have access to all data collected by the survey, at (http://www.pwrc.usgs.gov/bbs/). Standard disclaimers for use of information are also provided (http://www.mbr-pwrc.usgs.gov/bbs/disclaim.html).
Preview Image
Annual indexes of Eastern Bluebird (Sialia sialis). for the core survey area.