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Research Reports

bto research report 692 cover

BTO Research Reports are scientific papers that have been self-published by the BTO. The following is a full list of those BTO research reports which have been published. 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 copy of a report please contact researchreports [at]

More information about our Annual Service reports to JNCC 1992-2005.

656. Cook, A.S.C.P., Humphreys, E.M., Masden, E.A., Band, W. & Burton, N.H.K. Publication Date: 2014. The avoidance rates of collision between birds and offshore turbines. Link to Report
655. Calbrade, N.A. Publication Date: 2014. WeBS Low Tide Counts on English SPAs. ISBN: 978-1-908581-44-0 49pp £5.00 Download Report (PDF)
654. Ross-Smith, V.H., Grantham, M.J., Robinson, R.A. & Clark, J.A. Publication Date: 2014. Analysis of Lesser Black-backed Gull data to inform meta-population studies. ISBN: 978-1-908581-39-6 59pp £5.00 Download Report (PDF)
653. Austin, G.E. & Burton, N.H.K. Publication Date: 2014. Notes on the WeBS-Defra Annual Cormorant Index. ISBN: 978-1-908581-45-7 18pp £2.50 Download Report (PDF)
651. Dadam, D., Leech, D.I., Clark, J.A., Robinson, R.A. & Clark, N.A. Publication Date: 2014. Towards a better understanding of predation on breeding meadowbird populations. Phase 1, Year 2: Monitoring wader nest success in relation to predation at Stanny House Farm. ISBN: 978-1-908581-38-9 49pp £5.00 Download Report (PDF)
650. Dadam, D., Leech, D.I., Clark, J.A. & Clark, N.A. Publication Date: 2014. Bearded Tit (Panurus biarmicus) survey at Stanny House Farm. ISBN: 978-1-908581-37-2 28pp £2.50 Download Report (PDF)
648. D A Still, N A Calbrade & C A Holt Publication Date: 2014. Review and analysis of changes in waterbird use of the Mersey Estuary SPA, Mersey Narrows & North Wirral Foreshore SPA and Ribble & Alt Estuaries SPA. ISBN: 978-1-908581-46-4 203pp £20.00 Download Report (PDF)
643. Burton, N.H.K., Thaxter, C.B., Cook, A.S.C.P., Austin, G.E., Humphreys, E.M., Johnston, A., Still D.A. & Wright, L.J. Publication Date: 2013. Ornithology Technical Report for the Proposed Dogger Bank Teesside A and B Offshore Wind Farm Projects. Link to Report
642. N.A. Calbrade Publication Date: 2013. Humber Estuary Low Tide Programme 2011/12. ISBN: 978-1-908581-24-2 168pp £15.00 Download Report (PDF)
638. Ian Henderson & Rob Fuller Publication Date: 2016. Review of the Sites of Special Scientific Interest (SSSI) Selection Guidelines for Breeding Bird Assemblages. ISBN: 978-1-908581-61-7 25pp £2.50 Download Report (PDF)
633. Ian G Henderson Publication Date: 2016. Potential disturbance effects, nesting success and territory placement in Stone Curlews at Porton Down 2010-2012 . ISBN: 978-1-908581-60-0 29pp £2.50 Download Report (PDF)
630. Burton, N.H.K., Austin, G.E., Cook, A.S.C.P., Humphreys, E.M., Johnston, A., Morrison, C.A., Thaxter, C.B. & Wright, L.J. Publication Date: 2012. Ornithological Technical Report for the Proposed Dogger Bank Creyke Beck Offshore Wind Farm Projects.. Link to Report
629. Aonghais S C P Cook, Chris Thaxter, Lucy J Wright, Nick J Moran, Niall H K burton, Jed Andrews, Sophie Barker and Fred Cooke Publication Date: 2014. Analysis of sea-watching data from Holme Bird Observatory, Norfolk. ISBN: 978-1-908581-48-8 110pp £10.00 Download Report (PDF)
628. David J Baker & Robert J Fuller* * Correspondence author Publication Date: 2014. How can research help deliver a 'coherent & resilient ecological network'?. ISBN: 978-1-908581-33-4 43pp £5.00 Download Report (PDF)
622. Neil Calbrade & Nick Mason Publication Date: 2013. Habitat use by Avocet and Dark-bellied Brent Geese on the Deben Estuary over the high tide period. ISBN: 978-1-908581-25-9 21pp £2.50 Download Report (PDF)
618. Cook, A.S.C.P., Johnston, A., Wright, L.J. & Burton, N.H.K. Publication Date: 2013. Strategic Ornithological Support Services. Project SOSS-02. A review of flight heights and avoidance rates of birds in relation to offshore wind farms. ISBN: 978-1-908581-21-1 59pp £5.00 Download Report (PDF)
617. Morrison, C.A., Taylor, R., Hallam, A. & Burton, N.H.K. Publication Date: 2012. The effects on waterbirds of dredging at the Cardiff Bay Barrage: report for 2011/12. ISBN: 978-1-908581-05-1 28pp £2.50 Download Report (PDF)
614. Andy Musgrove, Iain Downie, Mark Hammond, Nick Moran & Karen Wright Publication Date: 2014. Odonata recording within BirdTrack: Non-technical specification. ISBN: 978-1-908581-12-9 24pp £2.50 Download Report (PDF)
612. Chamberlain, D. E., Austin, G.E., Green, R.E. & Burton, N.H.K. Publication Date: 2013. Production of representative Cormorant population trends with confidence limits. ISBN: 978-1-908581-08-2 22pp £2.50 Download Report (PDF)
610. Thaxter, C.B., Ross-Smith, V.H, Clark, N.A, Conway, G.J., Wade, H., Masden, E.A., Rehfisch, M.M, Bouten, W., Burton, N.H.K Publication Date: 2011. Measuring the interaction between marine features of Special Protection Areas with offshore wind farm development zones through telemetry: second breeding season report. 52pp Link to Report
608. Nick Moran & Andy Musgrove Publication Date: 2013. Enhancing data quality of bird records for the National Biodiversity Network. ISBN: 978-1-908581-26-6 27pp £2.50 Download Report (PDF)
603. Elizabeth Humphreys, Paul Kirkland and Dan Chamberlain BTO, Butterfly Conservation) Publication Date: 2013. The Biodiversity in Glasgow (BIG) Project. ISBN: 978-1-908581-14-3 57pp £5.00 Download Report (PDF)
602. Bray, J., Calladine, J. & Thiel, A. Publication Date: 2011. Third year of ornithological surveys at House of Water, East Ayrshire: breeding season 2010 and winter season 2010-11. ISBN: 978-1-906204-99-0 32pp £2.50 Download Report (PDF)
599. Shaw, L.M., Chamberlain, D., Conway, G.J. & Toms, M.P. Publication Date: 2011. Spatial distribution and habitat preferences of the House Sparrow, Passer domesticus in urbanised landscapes. ISBN: 978-1-906204-97-6 27pp Download Report (PDF)
595. John H Marchant & Andrew J Musgrove Publication Date: 2013. Review of European flyways of the Lesser White-fronted Goose Anser erythropus. ISBN: 978-1-908581-00-6 50pp £5.00 Download Report (PDF)
594. Musgrove, A.J., Siriwardena, G.M., Noble, D.G., Risely, K. & Calbrade, N. Publication Date: 2011. Research in support of a targeted review of the current UK network of terrestrial and coastal Special Protection Areas (SPAs). 23pp Link to Report
592. Lucy J. Wright, Viola H. Ross-Smith, Graham E. Austin, Dario Massimino, Daria Dadam,Aonghais S.C.P. Cook, Neil A. Calbrade & Niall H.K. Buon Publication Date: 2011. Strategic Ornithological Support Services Project SOSS-05: Review of bird migration routes in relation to offshore wind farm development zones. Link to Report
591. Thaxter, C.B., Moran, N.J., Musgrove, A.J. & Burton, N.H.K. Publication Date: 2011. The National Seawatching Workshop 11 November 2010 conclusions and recommendations. ISBN: 978-1-906204-93-8 26pp £2.50 Download Report (PDF)
590. Thaxter, C.B., Ross-Smith, V.H., Clark, N.A., Conway, G.J., Rehfisch, M.M., Bouten, W. & Burton, N.H.K. Publication Date: 2011. Measuring the interaction between marine features of SPAs with offshore windfarm development zones through telemetry: first breeding season report. 72pp Link to Report
588. Marchant, J.H., Noble, D.G., & Haynes, S. Publication Date: 2011. Repeat breeding bird survey of The National Forest (English Midlands) in 2010. ISBN: 978-1-906204-98-3 28pp £2.50 Download Report (PDF)
587. V.H. Ross-Smith, N.A. Calbrade & G.E. Austin Publication Date: 2013. Analysis of Wetland Bird Survey (WeBS) Data for the Wash SSSI/NNR. ISBN: 978-1-908581-22-8 166pp £15.00 Download Report (PDF)
582. Thaxter, C.B., Cook, A.S.C.P., Johnston, A. & Burton, N.H.K. Publication Date: 2011. Review of statistical techniques to model the at-sea distributions of breeding Sandwich Terns. ISBN: 978-1-906204-89-1 57pp £5.00 Download Report (PDF)
581. Henderson, I. Publication Date: 2011. An evaluation of bird populations on pea growers farms between 2007 and 2010 and relative to neighbouring farmland. ISBN: 978-1-906204-92-1 21pp £2.50 Download Report (PDF)
580. Cook, A.S.C.P., Ross-Smith, V.H., Roos, S., Burton, N.H.K., Beale, N., Coleman, C., Daniel, H., Fitzpatrick, S., Rankin, E., Norman, K. & Martin, G. Publication Date: 2011. Identifying a range of options to prevent or reduce avian collision with offshore wind farms, using a UK-based case study.. ISBN: 978-1-906204-95-2 197pp £15.00 Download Report (PDF)
579. Siriwardena, G.M. & Hulme, M.F. Publication Date: 2011. The influence of vegetable production on farmland bird populations. ISBN: 978-1-906204-90-7 40pp £5.00 Download Report (PDF)
578. Freeman, S.N. & Noble, D.G. Publication Date: 2011. Analyses to assess the effectiveness of modifications to the BBS sampling design. ISBN: 978-1-906204-87-7 59pp £5.00 Download Report (PDF)
577. Dadam, D., Barimore, C.J., Shawyer, C.R. & Leech, D.I. Publication Date: 2011. The BTO Barn Owl Monitoring Programme: final report 2000-2009. ISBN: 978-1-906204-88-4 68pp £5.00 Download Report (PDF)
574. Calbrade, N.A., Musgrove, A.J. & Austin, G.E. Publication Date: 2013. Waterbirds on English Sites of Special Scientific Interest: A review of the use made by non-breeding waterbirds of the English SSSI network. ISBN: 978-1-908581-23-5 18pp £2.50 Download Report (PDF)
573. Cook, A.S.C.P. & Robinson, R.A. Publication Date: 2010. How representative is the current monitoring of breeding seabirds in the UK?. ISBN: 978-1-908581-13-6 142pp £10.00 Download Report (PDF)
568. Emily Coleman & J A Clark Publication Date: 2013. Understanding the role of avian vectors in the spread of Phytophthora ramorum. ISBN: 978-1-908581-27-3 30pp £2.50 Download Report (PDF)
566. Conway, G.J. & Fuller, R.J. Publication Date: 2010. Multi-scale relationships between vegetation pattern and breeding birds in the upland margins (ffridd) of North Wales. ISBN: 1-906204-86-0 65pp £5.00 Download Report (PDF)
565. Baillie, S.R., Marchant, J.H., Leech, D.I., Joys, A.C., Noble, D.G., Barimore, C.J., Downie, I.S., Grantham, M.J., Risely, K. & Robinson, R.A. Publication Date: 2011. Breeding birds in the wider countryside: their conservation status 2010. Link to Report
563. Cook, A.S.C.P. & Burton, N.H.K. Publication Date: 2010. A review of the potential impact and marine aggregate extraction on seabirds and waterbirds. ISBN: 978-0-907545-35-4 100pp Download Report (PDF)
562. Sarah Eglington Publication Date: 2014. Understanding the causes of decline in breeding wetland bird numbers in England. ISBN: 978-1-908581-35-8 122pp £10.00 Download Report (PDF)
561. Marchant, J.H., Hulme, M.F. & Noble, D.G. Publication Date: 2010. Trends among breeding water birds during 1974-2009, along canals in British Waterways ownership. ISBN: 978-1-906204-83-9 35pp £2.50 Download Report (PDF)
560. Marchant, J.H., Hulme, M.F. & Noble, D.G. Publication Date: 2012. Waterways Breeding Bird Survey: progress 1998-2009 and long-term population trends. ISBN: 978-1-908581-18-1 66pp £5.00 Download Report (PDF)