A guide to birdwatching in the Thames Valley and all the counties crossed by the Chilterns (Bedfordshire, Berkshire, Buckinghamshire, Hertfordshire and Oxfordshire). This region includes some of England's best inland reservoirs and other wetland sites, as well as extensive areas of ancient woodland, and traditionally-managed farmland. The volume contains site accounts, plans, maps, lists of birds in the region and advice on planning birdwatching trips.