(4)However, following the recent evolution of the avian influenza situation in Asia an expert group meetings convened on 25 August 2005 and 6 September 2005 concluded that taking into account the existing knowledge on the migratory routes of the species of birds proceeding from central and western Asia, it is appropriate to improve surveillance in wild birds and surveillance on living or hunted birds as well as passive surveillance on wild birds found dead. In particular, the expert group recommended to intensify the surveillance programmes already planned for 2005/2006, by increasing sampling on migratory waterfowl along the flyways that might pose a risk for disease introduction. Decision 2005/464 has therefore been amended by Decision 2005/726/EC.