Review and Analysis of Changes in Waterbird Use of the Mersey Estuary SPA, Mersey Narrows & North Wirral Foreshore SPA and Ribble & Alt Estuaries SPA Still D. A. Spiral / 2014 / Engelsk
Waterbirds on English Sites of Special Scientific Interest: A Review of the Use Made by Non-breeding Waterbirds of the English SSSI Network Calbrade N. A. Spiral / 2013 / Engelsk
Analysis of Wetland Bird Survey (WeBS) Data for the Wash SSSI/NNR Ross-Smith V. H. Spiral / 2013 / Engelsk
