Neil Calbrade



WeBS Low Tide Count Organiser


I am responsible for organising the WeBS Low Tide Counts.


BSc Hons Countryside Management, Bishop Burton College, East Yorkshire 2000

Research Interests / Responsibilities

I am responsible for the overall running of the WeBS Low Tide Counts, including maintaining the WeBS database, producing the WeBS Newsletter and annual report, promoting the scheme, and liaising with WeBS volunteer surveyors and the network of volunteer WeBS Local Organisers. I also deal with requests for WeBS Data.

Other Information

I hold a ‘C’ ringing permit

Selected Publications

Siriwardena, G., Calbrade, N. & Vickery, J. 2009. Farmland birds and late winter food: does seed supply fail to meet demand? Ibis 150: 585-595.

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. BTO/WWT/RSPB/JNCC, Thetford.

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. BTO/WWT/RSPB/JNCC, Thetford.

Siriwardena, G.M. & Calbrade, N.A. 2007. Seed supply and demand for farmland birds in late winter: is there a “hungry gap”? Submitted MS 

Siriwardena, G.M, Stevens, D.K., Anderson, G.Q.A., Vickery, J.A., Calbrade, N.A. & 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.

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.

Siriwardena, G.M., Calbrade, N.A. & Vickery, J. 2005. Does winter feeding help farmland birds and how should we do it? BTO News 259.

Calbrade, N.A., Entwistle, C.A., Smith, A.J. & Spencer, K.G. 2001. Roof assemblies of lapwings and plovers in Britain. British Birds 94: 35-38.

Contact details

Email: neil.calbrade [at]
Telephone: 01842 750050
Fax: 01842 750030
Postal address: British Trust for Ornithology, The Nunnery, Thetford, IP24 2PU, UK.