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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Temperature and density influence survival in a rapidly declining migratory shorebird
Author: Cook, A.S.C.P., Burton, N.H.K., Dodd, S.G., Foster, S., Pell, R.J., Ward, R.M., Wright, L.J. & , Robinson, R.A.
Published: 2021
By studying data from over 15,000 ringed Curlew, researchers have determined that conservation efforts for this declining species should focus on increasing breeding success.
19.05.21
Papers

The Breeding Bird Survey 2020
Author: Harris, S.J., Massimino, D., Balmer, D.E., Eaton, M.A., Noble, D.G., Pearce-Higgins, J.W., Woodcock, P. & Gillings, S.
Published: 2021
Despite limited 2020 data due to COVID-19 restrictions, the latest BTO/RSPB/JNCC Breeding Bird Survey report reveals interesting trends.
13.05.21
Reports BBS Report

Dynamic space use of Andalusian rice fields by Lesser Black-Backed Gulls (Larus fuscus) is driven by flooding
Author: van Rees, C.B., Aragonés, D., Bouten, B., Thaxter, C.B., Stienen, E., Bustamante, J. & Green, A.J.
Published: 2021
GPS tracking of Lesser Black-backed Gulls wintering in southern Spain reveals how birds’ movements change through the rice harvest cycle, and shows the potential for contamination of arable land by gulls moving between rice paddies and landfill sites.
06.05.21
Papers

Nocturnal flight calling behaviour of thrushes in relation to artificial light at night
Author: Gillings, S. & Scott, C.
Published: 2021
New research from BTO has investigated the effect of artificial light at night on birds, indicating that nocturnal migrants are attracted to more brightly lit areas.
05.05.21
Papers

Evaluating the potential effects of capturing and handling on subsequent observations of a migratory passerine through individual acoustic monitoring
Author: Petrusková, T., Kahounová, H., Pišvejcová, I., Čermáková, A., Brinke, T., Burton, N.H.K. & Petrusek, A.
Published: 2021
This study of Tree Pipits highlights the role that acoustic monitoring can play as a non-intrusive method for the identification of individuals in long-term monitoring studies.
04.05.21
Papers
