Publications

Publications

BTO create and publish a variety of important articles, papers, journals and other publications, independently and with our partners, for organisations, government and the private sector. Some of our publications (books, guides and atlases) are also available to buy in our online shop.

Annual report of the Seabird Monitoring Programme

Seabird Population Trends and Causes of Change: 1986–2023

This report presents the latest seabird population trends in breeding abundance and productivity using data from the Seabird Monitoring Programme (SMP). 

The report documents changes in the abundance and productivity of breeding seabird species in Britain and Ireland from 1986 to 2023, and provides a detailed account of the 2021, 2022 and 2023 breeding seasons.

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Annual report of the Seabird Monitoring Programme

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Bailiwick Bat Survey: 2021–2024 Report

Author: Newson, S.E., Allez, S.L., Coule, E.K., Guille, A.W., Harper, J., Henney, J.M., Higgins, L., Lewis, M., McLellan, G.D., Simmons, M.C., Sweet, E., Whitelegg, D. & Atkinson, P.W.

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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Passive acoustic monitoring on the Hepple Estate, 2024 – piloting the rewilding monitoring framework

Author: Ashton-Butt, A., Gough, M., Higgins, S.L., Wetherhill, A. & Newson, S.E

Published: 2025

This report presents results from the first year of passive acoustic monitoring as part of the pilot of the Rewilding Monitoring Framework. These data will contribute to baselining and monitoring rewilding progress on the Hepple Estate and its impact on biodiversity.

09.09.25

BTO Research Reports

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Passive acoustic monitoring with Heal Rewilding, 2024 - piloting the Rewilding Monitoring Framework.

Author: Ashton-Butt, A., Hill, D., Higgins, S.L., Wetherhill, A. & Newson, S.E.

Published: 2025

This report presents results from the first year of Passive Acoustic Monitoring with Heal Rewilding as part of the pilot of the Rewilding Monitoring Framework. These data will contribute to baselining and monitoring rewilding progress and its impact on biodiversity.

09.09.25

BTO Research Reports

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Identity of predators of bird nests in the British Islands

Author: Barton, M.G., Conway, G.J., Henderson, I.G., Baddams, J., Balchin, C.S., Brides, K., Butcher, N., Cameron, T.C., Davis, T., Eyre, J., Foster, R., Gornall, D., Karipal Kallamballi, N., Laurie, P., Nixon, A., Noyes, P., Parish, D.M.B., Samson, L., Smart, J., Wilde, N., Wright, M.A. & Dolman, P.M.

Published: 2025

Nest cameras identify predators of wild birds’ nests in Britain and Ireland.

21.08.25

Papers

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