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All publications for Neil Calbrade

Woodward, I.D., Calbrade, N.A., Birtles, G.A., Feather, A., Peck, K., Wotton, S.R., Shaw, J.M., Balmer, D.E. & Frost, T.M. 2024. Waterbirds in the UK 2022/23. Download Report (PDF)
Austin, G.E., Calbrade, N.A., Birtles, G.A., Peck, K., Wotton, S.R., Shaw, J.M., Balmer, D.E. & Frost, T.M. 2023. Waterbirds in the UK 2021/22: The Wetland Bird Survey and Goose & Swan Monitoring Programme. 44pp Download Report (PDF)
Booth Jones, K., O’Connell, P., Calbrade, N. & Austin, G. 2023. Analysis of waterbird population trends for Northern Ireland’s sea loughs: assessing the potential impacts of aquaculture and disturbance. Part 3 – Larne Lough, Killough Harbour and Dundrum Inner Bay. Research Report no. 759. British Trust for Ornithology, Thetford, UK ISBN: 978-1-912642-55-7 74pp Download Report (PDF)
Booth Jones, K., Calbrade, N. & Austin, G. 2022. Analysis of waterbird population trends for Northern Ireland’s sea loughs: assessing the potential impacts of aquaculture and disturbance: Part 2 – Belfast Lough and Lough Foyle. Research Report no. 746. British Trust for Ornithology, Thetford, Norfolk ISBN: 978-1-912642-41-0 Download Report (PDF)
Booth Jones, K., Thaxter, C., Clewley, G., Wolsey, S., Calbrade, N., Atkinson, P., Calladine, J. & Burton, N. 2022. Belfast’s urban gulls: an assessment of breeding populations, breeding season movements and winter population. Research Report no. 734. British Trust for Ornithology, Thetford ISBN: 978-1-912642-26-7 52pp Download Report (PDF)
Clewley, G.D., Calbrade, N.A., Austin, G.E., Frost, T.M. & Burton, N.H.K. 2022. A review of the BTO/RSPB/JNCC Wetland Bird Survey (WeBS) Low Tide Counts scheme with recommendations for its future operation.. Research Report no. 744. British Trust for Ornithology, Thetford ISBN: 978-1-912642-35-9 52pp Download Report (PDF)
Bowgen, K.M., Wright, L.J., Calbrade, N.A., Coker, D., Dodd, S.G., Hainsworth, I., Howells, R.J., Hughes, D.S., Jenks, P., Murphy, M.D., Sanderson, W.G., Taylor, R.C. & Burton, N.H.K 2022. Resilient protected area network enables species adaptation that mitigates the impact of a crash in food supply. Marine Ecology Progress Series 681 : 211-225 View at journal website (DOI: 10.3354/meps13922) 15pp
Brides, K., Wood, K.A., Hall, C., Burke, B., McElwaine, E., Einarsson, Ó., Calbrade, N., Hill, O. & Rees, E.C. 2021. The Icelandic Whooper Swan Cygnus cygnus population: current status and long-term (1986–2020) trends in its numbers and distribution. Wildfowl Journal 71 : 29-57 Link to publication 29pp
Frost, T.M., Calbrade, N.A., Birtles, G.A., Hall, C., Robinson, A.E., Wotton, S.R., Balmer, D.E. and Austin, G.E. 2021. Waterbirds in the UK 2019/20. 40pp Download Report (PDF)
Marchowski, D., Ławicki, Ł., Fox, A.D., Nielsen, R.D., Petersen, I.K., Hornman, M., Nilsson, L., Haas, F., Wahl, J., Kieckbusch, J., Nehls, H.W., Calbrade, N., Richard Hearn, R., Meissner, W., Fitzgerald, N., Luigujoe, L., Zenatello, M., Gaudard, C. & Koschinski, S. 2020. Effectiveness of the European Natura 2000 network to sustain a specialist wintering waterbird population in the face of climate change. Scientific Reports 10 View at journal website (DOI: 10.1038/s41598-020-77153-4) 12pp
Teresa M. Frost, Neil A. Calbrade, Gillian A. Birtles, Heidi J. Mellan, Colette Hall, Anna E. Robinson, Simon R. Wotton, Dawn E. Balmer and Graham E. Austin. 2020. Waterbirds in the UK 2018/19. Download Report (PDF)
Teresa M. Frost, Graham E. Austin, Neil A. Calbrade, Heidi J. Mellan, Richard D. Hearn, A.E. Robinson, David A. Stroud, Simon R. Wotton and Dawn E. Balmer. 2019. Waterbirds in the UK 2017/18: The Wetland Bird Survey. Download Report (PDF)
Booth Jones, K., Calbrade, N., Woodward, I. & Austin, G. 2019. Analysis of waterbird population trends for Northern Ireland’s sea loughs: assessing the potential impacts of aquaculture and disturbance. Part 1 – Strangford Lough and Carlingford Lough. Research Report no. 719. British Trust for Ornithology, Thetford, Norfolk ISBN: 978-1-912642-40-3 Download Report (PDF)
Woodward, I.D., Calbrade, N.A. & Austin, G.E. 2018. Analysis of Wetland Bird Survey (WeBS) Data for The Humber Estuary SSSI, SAC, SPA and Ramsar site: Third appraisal - sector-level trends to winter 2016/17. Research Report no. 709. ISBN: 978-1-912642-09-0 268pp Download Report (PDF)
Teresa M. Frost, Graham E. Austin, Neil A. Calbrade, Heidi J. Mellan, Richard D. Hearn, David A. Stroud, Simon R. Wotton and Dawn E. Balmer. 2018. Waterbirds in the UK 2016/17: The Wetland Bird Survey. Download Report (PDF)
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. 2017. Waterbirds in the UK 2015/16: The Wetland Bird Survey. Download Report (PDF)
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. 2016. Waterbirds in the UK 2014/15: The Wetland Bird Survey. Download Report (PDF)
Ross-Smith, V.H., Calbrade, N.A. & Austin, G.E. 2015. Analysis of waterbird population trends in the Mersey estuary SPA, Mersey Narrows and North Wirral Foreshore SPA and Ribble & Alt Estuaries SPA. Research Report no. 640. Link to publication
Chas A. Holt, Graham E. Austin, Neil A. Calbrade, Heidi J. Mellan, Richard D. Hearn, David A. Stroud, Simon R. Wotton and Andy J. Musgrove. 2015. Waterbirds in the UK 2013/14: The Wetland Bird Survey. Download Report (PDF)
Calbrade, N.A. 2014. WeBS Low Tide Counts on English SPAs. Research Report no. 655. ISBN: 978-1-908581-44-0 49pp £5.00 Download Report (PDF)
D A Still, N A Calbrade & C A Holt 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. Research Report no. 648. ISBN: 978-1-908581-46-4 203pp £20.00 Download Report (PDF)
Graham E. Austin, Neil A. Calbrade, Heidi J. Mellan, Andy J. Musgrove, Richard D. Hearn, David A. Stroud, Simon R. Wotton and Chas A. Holt 2014. Waterbirds in the UK 2012/13: The Wetland Bird Survey. Download Report (PDF)
Graham E. Austin, Neil A. Calbrade, Heidi J. Mellan, Andy J. Musgrove, William Skellorn, Richard D. Hearn, David A. Stroud, Simon R. Wotton and Chas A. Holt. 2014. Waterbirds in the UK 2011/12: The Wetland Bird Survey. Download Report (PDF)
Austin, G. & Calbrade, N. 2013. Within-site waterbird trends relative to whole-site, regional and national population trends: Dungeness, Romney Marsh and Rye Bay SSSI. Research Report no. 546. ISBN: 978-1-908581-20-4 115pp £10.00 Download Report (PDF)
Calbrade, N.A., Musgrove, A.J. & Austin, G.E. 2013. Waterbirds on English Sites of Special Scientific Interest: A review of the use made by non-breeding waterbirds of the English SSSI network. Research Report no. 574. ISBN: 978-1-908581-23-5 18pp £2.50 Download Report (PDF)
N.A. Calbrade 2013. Humber Estuary Low Tide Programme 2011/12. Research Report no. 642. ISBN: 978-1-908581-24-2 168pp £15.00 Download Report (PDF)
Neil Calbrade & Nick Mason 2013. Habitat use by Avocet and Dark-bellied Brent Geese on the Deben Estuary over the high tide period. Research Report no. 622. ISBN: 978-1-908581-25-9 21pp £2.50 Download Report (PDF)
V.H. Ross-Smith, N.A. Calbrade & G.E. Austin 2013. Analysis of Wetland Bird Survey (WeBS) Data for the Wash SSSI/NNR. Research Report no. 587. ISBN: 978-1-908581-22-8 166pp £15.00 Download Report (PDF)
Chas Holt, Graham Austin, Neil Calbrade, Heidi Mellan, Richard Hearn, David Stroud, Simon Wotton & Andy Musgrove 2012. Waterbirds in the UK 2010/11: The Wetland Bird Survey. Download Report (PDF)
Chas A. Holt, Graham E. Austin, Neil A. Calbrade, Heidi J. Mellan, David A. Stroud, Simon R. Wotton and Andy J. Musgrove 2011. Waterbirds in the UK 2009/10: The Wetland Bird Survey. Download Report (PDF)
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 2011. Strategic Ornithological Support Services Project SOSS-05: Review of bird migration routes in relation to offshore wind farm development zones. Research Report no. 592. Link to publication
Musgrove, A.J., Siriwardena, G.M., Noble, D.G., Risely, K. & Calbrade, N. 2011. Research in support of a targeted review of the current UK network of terrestrial and coastal Special Protection Areas (SPAs). Research Report no. 594. Link to publication 23pp
Calbrade, N.A., Holt, C.A., Austin, G.E., Mellan, H.J., Hearn, R.D., Stroud, D.A., Wotton, S.R. & Musgrove, A.J 2010. Waterbirds in the UK 2008/09: The Wetland Bird Survey. Download Report (PDF)
Austin, G. & Calbrade, N. 2010. Within-site waterbird trends relative to whole-site and regional population trends: the South Lincs. Shooting zone on The Wash SPA. Research Report no. 548. ISBN: 978-1-908581-03-7 56pp £5.00 Download Report (PDF)
Calbrade, N.A., Holt, C.A., Austin, G.E., Mellan, H.J., Hearn, R.D., Stroud, D.A., Wotton, S.R. & Musgrove, A.J. 2010. Waterbirds in the UK 2008/09: The Wetland Bird Survey. BTO/RSPB/JNCC, Thetford.
Calbrade, N.A., Holt, C.A., Austin, G.E., Mellan, H.J., Hearn, R.D., Stroud, D.A., Wotton, S.R. & Musgrove, A.J 2009. Waterbirds in the UK 2007/08: The Wetland Bird Survey. Download Report (PDF)
Marchant, J.H., Calbrade, N.A. & Austin, G.E. 2009. Methods for comparing low-tide trends for Wetland Bird Survey count sectors with wider regions: a pilot study for three wader species on the Stour and Orwell Estuaries SPA. Research Report no. 540. ISBN: 978-1-908581-04-4 116pp £10.00 Download Report (PDF)
Austin, G.E., Collier, M.P., Calbrade, N.A., Hall, C. & Musgrove, A.J 2008. Waterbirds in the UK 2006/07: The Wetland Bird Survey. Download Report (PDF)
Austin, G.E., Calbrade, N.A., Rehfisch, M.R. & Wright, L.J. 2008. Humber Estuary SPA waterbird populations: trend analyses by count sector. Research Report no. 497. ISBN: 978-1-906204-68-6 216pp £20.00 Download Report (PDF)
Calbrade, N.A., Musgrove, A.J. & Rehfisch, M.R. 2008. Colne Estuary low tide counts 2007/08. Research Report no. 505. ISBN: 978-1-906204-72-3 38pp £5.00 Download Report (PDF)
Siriwardena, G.M., Calbrade, N.A. & Vickery, J.A. 2008. Farmland birds and late winter food: does seed supply fail to meet demand?. Ibis 150 : 585-595 View at journal website (DOI: 10.1111/j.1474-919X.2008.00828.x)
Musgrove, A.J., Collier, M.P., Banks, A.N., Calbrade, N.A., Hearn, R.D. & Austin, G.E. 2007. Waterbirds in the UK 2005/06: The Wetland Bird Survey. Download Report (PDF)
Siriwardena, G.M., Stevens, D.K., Anderson, G.Q.A., Vickery, J.A., Calbrade, N.E. & Dodd, S. 2007. The effect of supplementary winter seed food on breeding populations of farmland birds: evidence from two large-scale experiments. Journal of Applied Ecology 44 : 920-932 View at journal website (DOI: 10.1111/j.1365-2664.2007.01339.x)
Siriwardena, G.M., Calbrade, N.A., Vickery, J.A., & Sutherland, W.J. 2006. The effect of the spatial distribution of winter seed food resources on their use by farmland birds. Journal of Applied Ecology 43 : 628-639 View at journal website (DOI: 10.1111/j.1365-2664.2006.01170.x)