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

Search settings

Order by

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

View on journal website

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 ...

11.07.25

Papers

View on journal website

Partial niche partitioning in three sympatric gull species through foraging areas and habitat selection

Author: O'Hanlon, N.J., Clewley, G.D., Johnston, D.T., Thaxter, C.B., Langlois Lopez, S., Quinn, L.R., Boersch-Supan, P.H., Masden, E.A., Daunt, F., Wilson, J., Burton, N.H.K. & Humphreys, E.M.

Published: 2025

GPS tracking of three large gull species from the Isle of May, Scotland, revealed overlap in foraging habitats used during the breeding season, but differences in the where the three species foraged, ...

01.07.25

Papers

View on journal website

Review of methods used to calculate scale of artificial nesting structures proposed as a compensation measure for Kittiwake mortality at offshore wind farms

Author: Rhoades, J., Johnston, D.T., Humphreys, E.M. & Boersch-Supan, P.H.

Published: 2025

This report reviews the suitability of methods used to calculate the scale of Artificial Nest Structures (ANS) provided as compensation measures for Kittiwake mortality at offshore wind farms in ...

19.06.25

BTO Research Reports BTO Research Reports

Download file

Scroll down