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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Spring arrival of the Common Cuckoo at breeding grounds is strongly determined by environmental conditions in tropical Africa
Author: Davies, J.G., Kirkland, M., Miller, M.G.R., Pearce-Higgins, J.W., Atkinson, P.W. & Hewson, C.M.
Published: 2023
The average spring arrival dates of many summer migrants have advanced over recent decades, but the Cuckoo is one of several species in which this has not happened. The long-term decline in UK Cuckoo populations, together with the link between a changing climate and changing spring arrival dates more generally, raises the question as to why there has been such a limited shift in Cuckoo arrival times. This study sets out to address this question.
21.06.23
Papers
The phenology and clutch size of UK Blue Tits does not differ with woodland composition
Author: Branston, C.J., Whittingham, M.J., Phillimore, A.B., Leech, D. & Willis, S.G.
Published: 2023
17.06.23
Papers
Changes in breeding wader populations of the Uist machair and adjacent habitats between 1983 and 2022
Author: Calladine, J., Fuller, R., Hodkinson, D., Franks, S. & Boyle, J.
Published: 2023
Periodic surveys of machair and associated habitats on the west coast of North Uist, Benbecula and South Uist have documented marked changes in the composition of an important breeding wader assemblage. Within the study area of there was a 25% decline in the total number of breeding waders recorded between 1983 and 2022.
15.06.23
Papers
Reduced breeding success in Great Black-backed Gulls Larus marinus due to harness-mounted GPS device
Author: Langlois Lopez, S., Clewley, G.D., Johnston, D.T., Daunt, F., Wildon, J.M., O'Hanlon, N.J. & Masden, E.
Published: 2023
Great Black-backed Gulls can be negatively affected by harness-mounted GPS devices. This research reveals a reduction in breeding success among tagged birds compared to control groups.
13.06.23
Papers
Sunning in Yellow Bishops Euplectes capensis
Author: Oschadleus, H.D. & Boersch-Supan, P.H.
Published: 2023
Two photographic records of a Yellow Bishop apparently sunning, at the West Coast National Park, South Africa, are described. There are very few records of sunning in weavers, and this is the first record for this species.
05.06.23
Papers
