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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Long‐distance migrants vary migratory behaviour as much as short‐distance migrants: an individual‐level comparison from a seabird species with diverse migration strategies
Author: Brown, J.M., van Loon, E.E., Bouten, W., Camphuysen, K.C.J., Lens, L., Müller, W., Thaxter, C.B. & Shamoun‐Baranes, J.
Published: 2021
15.01.21
Papers
Methods to quantify avian airspace use in relation to wind energy development
Author: Largey, N., Cook, A.S.C.P., Thaxter, C.B., McCluskie, A., Stokke, B.G., Wilson, B. & Masden, E.A.
Published: 2021
New research involving BTO has developed a framework to identify how wildlife might be affected by renewable energy developments.
13.01.21
Papers

Carryover effects of long-distance avian migration are weaker than effects of breeding environment in a partially migratory bird
Author: Buchan, C., Gilroy, J.J., Catry, I., Bustamante, J., Marca, A.D., Atkinson, P.W., González, J.M. & Franco, A.M.A.
Published: 2021
13.01.21
Papers
A counterfactual approach to measure the impact of wet grassland conservation on UK breeding bird populations
Author: Jellesmark, S., Ausden, M., Blackburn, T.M., Gregory, R.D., Hoffmann, M., Massimino, D., McRae, L. & Visconti, P.
Published: 2021
07.01.21
Papers
A global horizon scan of the future impacts of robotics and autonomous systems on urban ecosystems
Author: Goddard, M.A., Davies, Z.G., Guenat, S., Ferguson, M.J., Fisher, J.C., Akanni, A., Ahjokoski, T., Anderson, P.M.L., Angeoletto, F., Antoniou, C., Bates, A.J., Barkwith, A., Berland, A., Bouch, C.J., Rega-Brodsky, C.C., Byrne, L.B., Cameron, D., Canavan, R., Chapman, T., Connop, S., Crossland, S., Dade, M.C., Dawson, D.A, Dobbs,C., Downs, C.T., Ellis, E.C., Escobedo, F.J., Gobster, P., Gulsrud, N.M., Guneralp, B., Hahs, A.K., Hale, J.D., Hassall, C., Hedblom, M., Hochuli, D.F., Inkinen, T., Ioja, I.-C., Kendal, D., Knowland, T., Ingo Kowarik, I., Langdale, S.J., Lerman, S.B., MacGregor-Fors, I., Manning, P., Massini, P., McLean, S., Mkwambisi, D.D., Ossola, A., Luque, G.P., Pérez-Urrestarazu, L., Perini, K., Perry, G., Pett, T.J., Plummer, K.E., Radji, R.A., Roll, U., Potts, S.G., Rumble, H., Sadler, J.P., de Saille, S., Sautter, S., Scott, C.E., Shwartz, A., Smith, T., Snep, R.P.H. et al
Published: 2021
04.01.21
Papers