BTO Research Reports are scientific papers that have been self-published by the BTO. The following is a full list of the published BTO research reports. Most are free to download, and links to Abstracts are included where possible.
Numbers missing from the list are those allocated but which were never produced or which have not been published. BTO recognises that, particularly in respect of commercially sensitive cases, a period of confidentiality is appropriate for some projects. However, in the interests of scientific development and dissemination of information, we encourage clients to permit publication as soon as it is reasonable to do so.
- If you wish to purchase a physical copy of a report please contact researchreports@bto.org.
- More information about our Annual Service reports to JNCC 1992-2005.
Assessment of recent Hen Harrier population trends in England through population modelling
This study uses a population modelling approach to explore the effects of changes in rates of productivity, survival, and settlement on population growth in the English population of Hen Harriers.
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LifeCycle - Issue 10, Spring 2021
Author: BTO / Multiple
Published: 2021
Includes the results from the 2020 breeding season as well as articles on catching corvids, nesting in your garden and finding Blackcap nests. It also introduces readers to the wonderful world of flat flies.
01.06.21
Magazines Lifecycle
Recovering the Eurasian Curlew in the UK and Ireland: progress since 2015 and looking ahead
Author: Douglas, D.J.T., Brown, D., Cohen, S., Colwell, M., Donaghy, A., Drewitt, A., Finney, K., Franks, S., Heptinstall, D., Hilton, G., Kelly, S., Lindley, P., McCarthy, B., McCulloch, N., O’Donoghue, B., Sanders, S., Thompson, P. & Whitehead, S.
Published: 2021
Work in 2015 identified Curlew as the UK's most pressing avian conservation priority. New research reviews progress since that time, both in the UK and the Republic of Ireland, and concludes that there has been little change in this species' precarious status.
01.06.21
Papers
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
