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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Nearctic birds in Great Britain and Ireland in autumn 1958
Author: Williamson, K. & Ferguson-Lees, I.J.
Published: 1960
01.01.60
Papers
Migrants at station "Juliett" in September 1959
Author: McLean, I. & Williamson, K.
Published: 1960
01.01.60
Papers
Migrants between south Greenland and Iceland
Author: Williamson, K. & McLean, I.
Published: 1960
01.01.60
Papers