Robinson, R.A., Lawson, B., Toms, M.P., Peck, K.M., Kirkwood, J.K., Chantrey, J., Clatworthy, I.R., Evans, A.D., Hughes, L.A., Hutchinson, O.C., John, S.K., Pennycott, T.W., Perkins, M.W., Rowley, S.A., Simpson, V.R., Tyler, K.M. & Cunningham, A.A. 2010. Emerging infectious disease leads to rapid populations declines of common British birds. PLOS ONE 5: doi:10.1371/journal.pone.0012215