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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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.
12.09.23
Papers

The status of the UK breeding European Turtle Dove Streptopelia turtur population in 2021
Author: Stanbury, A.J., Balmer, D.E., Eaton, M.A., Grice, P.V., Khan, N.Z., Orchard, J.M. & Wotton, S.R.
Published: 2023
The Turtle Dove is a summer migrant to the UK. Its numbers have fallen sharply in recent decades, and it is now one of only six globally threatened species that regularly breed in the UK.
11.09.23
Papers Bird Study

A crowded ocean: the need for demographic and movement data in seabird conservation
Author: O’Hanlon, N.J., Johnston, D.T., Cook, A.S.C.P., Robinson, R.A. & Humphreys, E.M.
Published: 2023
Recent news of highly pathogenic avian influenza hitting seabird colonies and severe marine heatwaves disrupting marine food webs highlight just two of the many threats that seabirds must contend with. This BTO study examines the information needed to come up wtih effective conservation measures for seabird species.
01.09.23
Papers

Analysis of wintering waterbird population trends for the Lough Neagh and Lough Beg Special Protection Area (SPA)
Author: El Haddad, H., Austin, G., Woodward, I. & Booth Jones, K.
Published: 2023
This analysis of Wetland Bird Survey (WeBS) data for the Lough Neagh and Lough Beg SPA provides details of wintering waterfowl population changes around the loughs and assists in identifying potential research questions to be pursued.
24.08.23
Reports Research reports

Lasso Penalisation identifies consistent trends over time in landscape and climate factors influencing the wintering distribution of the Eurasian Curlew (Numenius arquata)
Author: Kenobi, K., Read, W., Bowgen, K., Macgregor, C., Taylor, R., Cámaro García, W., Hodges, C., Dennis, P. & Holloway, P.
Published: 2023
12.08.23
Papers
