1999 Staff Author(s) Citation Cranswick, P.A., Pollitt, M.S., Musgrove, A.J. & Hughes, R.C. 1999. The Wetland Bird Survey 1997-98: Wildfowl and Wader Counts. BTO/WWT/RSPB/JNCC, Slimbridge Staff author(s) Andy Musgrove