Modelling Bird Population Changes Using Data from the Common Birds Census and the Breeding Bird Survey Noble D. G. Spiral / 2003 / Engelsk
Assessment of the Impacts of the Entry Level Scheme on Bird Populations Results from the Baseline Year, 2005 Chamberlain D. Spiral / 2007 / Engelsk
Association of British Breeding Birds with Freshwater Wetland Habitats Everard M. Spiral / 2008 / Engelsk
