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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Contrasting habitat use between and within Bar-tailed Godwit and Curlew wintering on the Wash, England
Author: Pell, R.J., Clark, J.A. & Robinson, R.A.
Published: 2023
Ongoing declines have been reported for many of our wader species, and there is an urgent need to both understand the reasons for these declines and assess the effectiveness of any associated conservation action.
01.12.23
Papers
Scottish Raptor Monitoring Scheme Annual Report 2021 & 2022
Author: Challis, A., Beckmann, B.C., Wilson, M.W., Eaton, M.A., Stevenson, A., Stirling-Aird, P., Thornton, M. & Wilkinson, N.I.
Published: 2023
01.12.23
Reports
Analysis of Wetland Bird Survey (WeBS) data for The Humber Estuary SSSI, SAC, SPA and Ramsar site: fourth appraisal — sector-level trends to winter 2021/22
Author: Bowgen, K.M., Austin, G.E., Wetherhill, A. & Woodward, I.D.
Published: 2023
This study updates previous reports that assessed population trends of waterbird species in different parts of the Humber Estuary, in order to identify areas where species were declining contrary to, or in excess of, the trend for the Humber Estuary as a whole and, furthermore, to identify sectors that support an increasing proportion of species that are declining across the Humber Estuary as a whole.
01.12.23
Research reports Research reports
A demonstration of the value of recapture data for informing moult phenology models for species with imperfect moult data.
Author: Boersch-Supan, P.H., Lee, A.T.K & Oschadleus, H.D.
Published: 2023
It is important for birds to maintain their plumage in good condition, something that is facilitated by the periodic moulting of their feathers. However, moulting feathers is energetically costly and can also compromise an individual’s ability to forage and avoid predators. Because of this, the timing of feather moult needs to be balanced against the demands imposed by other key events, such as breeding and migration.
31.10.23
Papers
