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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Report on the Wood Pigeon (commissioned by the Royal Agricultural Society of England)
Author: Alexander, W.B.
Published: 1941
01.01.41
Papers
Quantitative studies in the geographical variation of birds - the Common Guillemot (Uria aalge Pont.) Proceedings Zoological Society London Series A 111
Author: Southern, H.N. & Reeve, E.C.R.
Published: 1941
01.01.41
Papers
The breeding distribution, history and population of the Fulmar Fulmarus glacialis in the British Isles
Author: Fisher, J. & Waterston, G.
Published: 1941
01.01.41
Papers
Report on the 1938 survey of Black-headed Gull colonies
Author: Hollom, P.A.D.
Published: 1940
01.01.40
Papers