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 horizon scan of emerging issues for global conservation in 2019
Author: Sutherland W.J., Broad B., Butchart S.H.M., Clarke S.J., Collins A.M., Dicks L.V., Doran H., Esmail N., Fleishman E., Frost N., Gaston K.J., Gibbons D.W., Hughes A.C., Jiang Z., Kelman R., LeAnstey B., le Roux X., Lickorish F.A., Monk K.A., Mortimer D., Pearce-Higgins J.W., Peck L.S., Pettorelli N., Pretty J., Seymour C.L., Spalding M.D., Wentworth J., Ockendon N.
Published: 2018
13.12.18
Papers
State of Birds in Wales 2018
Author:
Published: 2018
Produced jointly by RSPB, BTO, Natural Resource Wales (NRW) and the Welsh Ornithological Society (WOS) , this report provides a current overview of the state of breeding and wintering bird populations in Wales, as well as information about recent conservation initiatives.
06.12.18
Reports State of Birds in Wales

Updating information on the period of reproduction and prenuptial migration for UK and Irish species included on Annex II of the EU Birds Directive
Author: Massimino D. & Gillings S.
Published: 2018
Article 7(1) of the European Union’s Directive 2009/147/EC on the conservation of wild birds allows for the hunting of species included within Annex II, where such hunting does not jeopardise conservation efforts. Article 7(4) of the Birds Directive further clarifies that species should not be hunted during their reproductive period or, if the species are migratory, during their prenuptial migration. To ensure effective implementation of these requirements, the European Commission requires Member States to identify the extent of the reproductive period and, where applicable, the timing of prenuptial migration for species included on Annex II that occur on their territory. A review of the best available information on the period of prenuptial migration and reproduction of each huntable species, for each Member State where that species occurs, was first carried out in 2001. The review was updated in 2009 and again in 2014, primarily to fill in missing data, especially for new Member States, but also to address inconsistencies within the species information available. This research report uses the latest BTO information to provide a further update.
21.11.18
Reports
Analysis of Wetland Bird Survey (WeBS) Data for The Humber Estuary SSSI, SAC, SPA and Ramsar site: Third appraisal - sector-level trends to winter 2016/17
Author: Woodward, I.D., Calbrade, N.A. & Austin, G.E.
Published: 2018
01.11.18
Reports
LifeCycle - Issue 8, Autumn 2018
Author: BTO / Multiple
Published: Autumn 2018
Highlights a new project exploring moult in Blue Tits. It also contains articles on undertaking fieldwork on the MOD estate, ageing Reed Buntings, monitoring Woodpigeon nests, and ringing without mist nets.
22.10.18
Magazines Lifecycle