Bird ringing in Britain and Ireland in 2007

摘要: This is the 71st annual report of British Trust for Ornithology's Ringing Scheme, covering work carried out, and data received, in 2007. In partnership with EURING, a web‐based application was developed to map migration routes waterfowl species identified as being those highest potential carry Highly Pathogenic Avian Influenza H5N1 across Europe. used recovery held EURING database. The 25th year Constant Effort Site (CES) ringing demonstrated how heavy rainfall during summer 2007 had largely negative effect on breeding success, productivity ten significantly lower than long‐term average, although that four higher. These contrasting fortunes are likely be related timing heaviest rains relation stage. For several species, there were also continued declines adult abundance particular concern Sedge Warbler, Reed Bunting, Lesser Whitethroat Lin...