Explore and Request Data from the BBL
Explore bird banders’ data and learn how many birds have been banded and encountered since 1960. Pre-1960 banding data are only available for birds that have been encountered after initial banding. Specific banding and encounter data are available upon request for research purposes.
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Explore & Download Data: Discover banding and encounter data. These data are summarized by location, utilize our species banding count map for visualization. Banding counts are downloadable.
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Banding & Encounter Summaries: Explore the total number of birds banded and encountered by bird species and group since 1960. These data are summarized by specific year and location.
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Longevity Records: Discover the Bird Banding Lab’s longevity recorder holders for each bird species and bird species group. These record holders come from data collected across 100+ years. This list just shows record holders (which were verified by the lab) and does not provide a list of the oldest birds within in these species.
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Banding and Encounter Data Requests
Understanding BBL Codes
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Banding and Encounter Data Requests
Banding and encounter data are available for research purposes. Individual banding data records exist electronically starting in 1960. Pre-1960 banding data are available only for birds that have been encountered. Individual encounter data are available from 1913.Understanding BBL Codes
The BBL uses a variety of codes to facilitate the data management processes. Banders use these codes to report their banding and encounter data to the lab. These codes are present in data downloaded from the lab’s database, and can be deciphered using the following links.