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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Atlantic populations of a declining oceanic seabird have complex migrations and weak migratory connectivity to staging areas
Author: O'Hanlon, N.J., van Bemmelen, R.S.A., Snell, K.R.S., Conway, G.J, Thaxter, C.B., Aiton, H., Aiton, D., Balmer, D.E., Are Hanssen, S., Calladine, J.R., Hammer, S., Harris, S.J., Moe, B., Schekkerman, H., Tulp, I. & Humphreys, E.M.
Published: 2024
Tracking the long-distance migrations of Arctic Skuas from their north-east Atlantic breeding grounds revealed complex migration strategies, with mixing of individuals from different populations at important staging areas before the birds reached their southern wintering grounds.
07.03.24
Papers
Breeding periods of hedgerow-nesting birds in England
Author: Hanmer, H.J. & Leech, D.I.
Published: Spring 2024
Hedgerows form an important semi-natural habitat for birds and other wildlife in English farmland landscapes, in addition to providing other benefits to farming. Hedgerows are currently maintained through annual or multi-annual cutting cycles, the timing of which could have consequences for hedgerow-breeding birds.The aim of this report is to assess the impacts on nesting birds should the duration of the management period be changed, by quantifying the length of the current breeding season for 15 species of songbird likely to nest in farmland hedges. These species are Blackbird, Blackcap, Bullfinch, Chaffinch, Dunnock, Garden Warbler, Goldfinch, Greenfinch, Linnet, Long-tailed Tit, Robin, Song Thrush, Whitethroat, Wren and Yellowhammer.
05.03.24
Research reports Research reports
Characterisation, prevalence and severity of skin lesions caused by ophidiomycosis in a population of wild snakes
Author: Allain, S.J.R., Leech, D.I., Hopkins, K., Seilern-Moy, K., Rodriguez-Ramos Fernandez, J., Griffiths, R.A. & Lawson, B.
Published: 2024
02.03.24
Papers
Bailiwick Bat Survey: 2023 season report
Author: Newson, S.E., Allez, S.L., Coule, E.K., Guille, A.W., Henney, J.M., Higgins, L., Mclellan, G.D., Lewis, M., Simmons, M.C. & Atkinson, P.W.
Published: 2024
This report presents the main findings from survey work delivered using passive acoustic monitoring devices deployed across the Bailiwick of Guernsey.
26.02.24
Research reports Research reports
Challenges in quantifying the responses of Black-legged Kittiwake to habitat variables and local stressors due to individual variation
Author: O’Hanlon, N.J., Thaxter, C.B., Clewley, G.D., Davies, J.G., Humphreys, E.M., Miller, P.I. Pollock, C.J., Shamoun-Baranes, J., Weston, E. & Cook, A.S.C.P.
Published: 2024
Seabird populations face many different challenges, from the impacts of a changing climate through to the risks posed by offshore wind farms. Understanding how environmental conditions influence seabird distributions at sea, and therefore interactions with potential threats, at the individual level, can help improve our understanding of the population-level impacts of these challenges.
21.02.24
Papers
