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.

Search
Fine-scale mapping of relative abundance and trends, and extraction of small-area population trends for breeding birds
Author: Border, J.A. & Gillings, S.
Published: 2020
29.04.20
Reports
Positive impacts of important bird and biodiversity areas on wintering waterbirds under changing temperatures throughout Europe and North Africa
Author: Pavón-Jordán, D., Abdou, W., Azafzaf. H., Balaž, M., Bino, T., Borg, J.J., Božič, L., Butchart, S.H.M., Clausen, P.., Sniauksta, L., DakkiM., Devos, K., Domsa, C., Encarnaçao, V., Etayeb, K., Faragó, S., Fox, A.D., Frost, T., Gaudard, C., Georgiev, V., Goratz, I., Hornman, M., Keller, V., Kostiushyn, V., Langendoen, T., Ławicki, Ł., Ieronymidou, C., Lewis, L.J., Lorentsen, S.-H., Luigujoe, L., Meissner, W., Mikuska, T., Molina, B., Musil, P., Musilova, Z., Nagy, S., Natykanets, V., Nilsson, L., Paquet, J.-Y., Portolou, D., Ridzon, J., Santangeli, A., Sayoud, S., Šćiban, M., Stipniece, A., Teufelbauer, N., Topić, G., Uzunova, D., Vizi, A., Wahl, J., E.Yavuz, K.E., Zenatello, M. & Lehikoinen, A.
Published: 2020
23.04.20
Papers
Pilot Tracking Study of the Migratory Movements of Shelduck to Inform Understanding of Potential Interactions with Offshore Wind Farms in the North Sea
Author: Green, R.M.W., Burton, N.H.K. & Cook, A.S.C.P.
Published: 2020
23.04.20
Reports
Variation in abundances of common bird species associated with roads
Author: Cooke, S.C., Balmford, A., Johnston, A., Newson, S.E. & Donald, P.F.
Published: 2020
21.04.20
Papers
Survival of Eurasian Curlew Numenius arquata differs by season but not breeding origin
Author: Robinson, R.A., Sanders, J.D. & Rees, E.C.
Published: 2020
14.04.20
Papers