Data

Information published on our website

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's Data Policy

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.

Youth Advisory Panel

Meet our panel of volunteers who help steer BTO to better serve our younger supporters.

Chaffinch and Greenfinch. Edmund Fellowes

Case Study

What we can learn from 25 years of watching gardens

Exploring the value of a complete quarter-century of weekly garden bird observations from BTO's Garden BirdWatch covering the length and breadth of the country.

Tagged Lesser Black-backed Gull. Gary Clewley

Article

Bird tracking - a masterclass

Phil Atkinson explains the technology behind tracking.