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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Waterfowl distribution and diet on the Mersey Estuary and adjacent areas
Author: Rehfisch, M.M., Sim, I., Clark, N.A., Donald, P.F. & Warbrick, S.
Published: 1991
01.01.91
Reports
Distribution studies of waders and Shelduck on the Severn Estuary with reference to sediment mobility
Author: Warbrick, S., Clark, N.A. & Donald, P.F.
Published: 1991
01.01.91
Reports
Population processes in some British seed-eating birds
Author: Crick, H.Q.P., Donald, P.F. & Greenwood, J.J.D.
Published: 1991
01.01.91
Reports
The impact of the Severn oil spill of February 1991 on the populations and distributions of waterfowl
Author: Rehfisch, M.M., Warbrick, S., Clark. N.A., Langston, R.H.W. & Delany, S.
Published: 1991
01.01.91
Reports
The effect of the Cardiff Bay Barrage on waterfowl populations 2. Distribution and movement studies July 1990 - May 1991
Author: Donald, P.F. & Clark, N.A.
Published: 1991
01.01.91
Reports