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.

Read the report
Annual report of the Seabird Monitoring Programme

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Impact of future climate change and land-use change on habitat suitability for a long-distance avian migrant under diverse ...

Author: Lathouwers, M., Beenaerts, N., Evens, R., Tom Artois, T., Conway, G., Henderson, I., Shewring, M., Cross, T., Ulenaers, E. & Dendoncker, N.

Published: 2025

During the current period of accelerating change in both climate and environmental conditions many birds species are having to adapt to new conditions. While sedentary species only have to adapt to ...

05.08.25

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The use of monitoring data from north-west Europe as indicators for the health of Arctic-breeding waterbird populations

Author: Thaxter, C.B., Holt, C.A., Austin, G.E., Reneerkens, J., Koffijberg, K., Hornman, M., Frost, T., Calbrade, N., Mitchell, C., Brides, K., Hearn, R.D., Wotton, S.R., Burton, N.H.K., Pearce-Higgins, J.W. & Stroud, D.A.

Published: 2025

The Arctic is warming faster than anywhere on the planet. Substantial ecological changes are occurring such as habitat loss and disruption to ecosystems. It is therefore urgent to better understand ...

30.07.25

Papers

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Environmental and Geographic Conditions on the Breeding Grounds Drive Bergmannian Clines in Nightjars

Author: Skinner, A.A., Korpach, A.M., Åkesson, S., Bakermans, M.H., Bayne, E.M., Benson, T.J., Boano, G., Brigham, R.M., Christiansen, S.S., Conway, G.J., Davy, C.M., Evens, R., Fraser, K.C., Harrison, A.-L., Hedenström, A., Henderson, I.G., Honkala, J., Jacobsen, L.B., Lathouwers, M., Marra, P.P., Ng, J.W., Norevik, G., Scarpignato, A.L., Thorup, K., Tonra, C.M., Van Wilgenburg, S.L., Vitz, A.C., Ward, M. & Knight, E.

Published: 2025

Bergmann’s rule (or ‘law’) is one of the oldest in ecology and evolutionary biology, first presented in 1847. This rule states that animals inhabiting colder climates/latitudes are larger, with ...

12.07.25

Papers

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Tracking of Goosanders Mergus merganser in Scotland

Author: Wetherhill, A., Carss, D.N., Heward, C.J., Humphreys, E.M., Hunt, J., Wilson, M.J. & Calladine, J.

Published: 2025

This study assessed the use of glue-mounted GPS tags to track Goosanders in two Scottish river catchments with contrasting management regimes – the Tweed, where licensed shooting occurs, and the Forth ...

11.07.25

Papers

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