Reports

Reports

BTO publishes various reports, from those covering the annual results of core surveys, through scientific studies, and on to those produced in partnership with other organisations. Many of these are published as BTO Research Reports, which includes BBS reports, Waterbirds in the UK (WeBS) reports and SMP reports. You can access all of our reports from here, though note that we are currently updating the reports section, working backwards through time to bring all of the report pages into a consistent format. You can read our Annual Report and Accounts in the Governance section.

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Bailiwick Bat Survey: 2021–2024 Report

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Published: 2025

Working with a network of volunteer fieldworkers, static acoustic bat detectors were deployed over four survey seasons (2021–2024) to provide baseline data for bats on the islands of Guernsey, Alderney, Herm, Sark, Brecqhou, Burhou, Crevichon, Jethou and Lihou. This report provides an overview of the survey coverage and main results from the project.

09.09.25

BTO Research Reports

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