Survey and Assessment of the Birds of the Cam Washes and Berry Fen SSSIs, Cambridgeshire, Focussing on Breeding and Wintering Waterbirds Collier M.P. Spiral / 2006 / Engelsk
Effects on Waterbirds on Dredging at the Cardiff Bay Barrage Report for 2004/05 Burton N. H. K. Heftet / 2007 / Engelsk
