BTO publishes various reports, from those covering the annual results of core surveys, through scientific studies, and on to those produced in partnership with other organisations. Many of these are published as BTO Research Reports. You can access all of our reports from here, though note that we are currently updating the reports section, working backwards through time to bring all of the report pages into a consistent format. You can read our Annual Report and Accounts in the Governance section.
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Management responses to ash dieback (Hymenoscyphus fraxineus) in woodland: implications for woodland structure and resources for biodiversity
Author: Robert J. Fuller
Published: 2016
This report addresses the question of how responses by woodland managers to the dieback of ash (Fraxineus excelsior) caused by the fungal pathogen Hymenoscyphus fraxineus coud alter the opportunities for woodland wildlife in Britian.
21.08.16
Reports
The Breeding Bird Survey 2015
Author: Harris, S.J., Massimino, D., Newson, S.E., Eaton, M.A., Marchant, J.H., Balmer, D.E., Noble, D.G., Gillings, S., Procter, D. & Pearce-Higgins, J.W.
Published: 2016
This is the 21st annual report of the BTO/JNCC/RSPB Breeding Bird Survey (BBS), containing the population trends of widespread UK bird species during the period 1994-2015.
13.07.16
Reports BBS Report

Urban Breeding Gull Surveys: A Review of Methods and Options for Survey Design
Author: Kathryn E Ross, Niall H K Burton, Dawn E Balmer, Elizabeth M Humphreys, Graham E Austin, Beth Goddard, Helena Schindler-Dite and Mark M Rehfisch
Published: 2016
This report has been commissioned by Natural England to inform the design and implementation of future census efforts for breeding urban gulls, and to make recommendations for the most cost-effective survey strategy for delivering urban gull populations for the UK and Republic of Ireland, as well as any specified key sites.
07.06.16
Reports
Waterbirds in the UK 2014/15
Author: Teresa M. Frost, Graham E. Austin, Neil A. Calbrade, Chas A. Holt, Heidi J. Mellan, Richard D. Hearn, David A. Stroud, Simon R. Wotton and Dawn E. Balmer.
Published: 2016
Waterbirds in the UK presents the summarised results of the annual WeBS report, and full data available via the WeBS Report Online. It provides a single, comprehensive source of information on the current status and distribution of waterbirds in the UK for those interested in the conservation of the populations of these species and the wetland sites they use.
01.06.16
Reports Waterbirds in the UK

The Scientific Validity of Criticisms made by the RSPB of Metrics used to Assess Population Level Impacts of Offshore Wind Farms on Seabirds
Author: Aonghais S.C.P. Cook & Robert A. Robinson
Published: 2016
05.05.16
Reports