Data
Information published on our website
Facts and Figures on British birds
Trends in numbers and breeding performance over 50 years
Which birds can be found near you
BTO survey information
Detailed Information on BTO Surveys
Search for data
- Find out what Survey Data are available
- Search for BTO survey information on a SPECIES
- Search for BTO survey information about an AREA
- Request data from the BTO
BTO Data policies
The BTO statement on Data Quality
Data on Sensitive Species -- BTO statement
BTO Library
The BTO has a comprehensive library in Thetford containing many books, journals, local bird reports, ringing reports and grey literature; as well as archives from its surveys and from some individuals associated with the Trust.
See the BTO library catalogue of material.
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