2009-2010, Hi Def/WWT Consulting, Zone 8 - Bristol Channel Atlantic Array, Aerial Bird Surveys series https://portal.medin.org.uk/portal/start.php?tpc=015_d6728c5181cd8eb4acc870e4a872938c HiDef Aerial Surveying Limited were asked by RWE to provide estimates of densities and abundances for the bird species most commonly recorded during digital aerial surveys of the Atlantic Array area between 2009 and 2010. Estimates were produced for the whole Atlantic Array zone and separately for the Project Area for each survey undertaken and for data from summer periods in both years pooled together; the pooled data included data from May and July in 2009 and May, June and August in 2010. Survey data collected by the Wildfowl & Wetland Trust (WWT) is also provided. 20110901