The Berkshire, Buckinghamshire and Oxfordshire Wildlife Trust (BBOWT), is a wildlife trust covering the counties of Berkshire, Buckinghamshire and Oxfordshire in England.
Hartslock is a 41.8-hectare (103-acre) biological Site of Special Scientific Interest south-east of Goring-on-Thames in Oxfordshire. An area of 29.4 hectares is a Special Area of Conservation and an area of 10 hectares is a nature reserve owned and managed by the Berkshire, Buckinghamshire and Oxfordshire Wildlife Trust,
Ashridge Wood is a 15.9-hectare (39-acre) biological Site of Special Scientific Interest south-west of Compton in Berkshire. It is in the North Wessex Downs, which is an Area of Outstanding Natural Beauty.
Tring Woodlands is a 23.8 hectare biological Site of Special Scientific Interest in Tring in Hertfordshire. It is part of the Chilterns Area of Outstanding Natural Beauty and the local planning authority is Dacorum District Council. The wood has a rich flora, showing that it is well established. It is a good example of a semi-natural beech wood in Hertfordshire. Plants that are abundant include woodruff, wood anemone and dog's mercury, and there are a variety of woodland birds. There is access to the wood from Hastoe Hill.
Harby Hill Wood is a 16.9 hectare biological Site of Special Scientific Interest west of Eastwell in Leicestershire.
Fairmile Bottom is a 70.2-hectare (173-acre) biological Site of Special Scientific Interest north-west of Arundel in West Sussex. An area of 61.3 hectares is also a Local Nature Reserve.
Brasenose Wood and Shotover Hill is a 109.2-hectare (270-acre) biological Site of Special Scientific Interest on the eastern outskirts of Oxford in Oxfordshire. It is a Nature Conservation Review site.
Swyncombe Downs is a 47.1-hectare (116-acre) biological Site of Special Scientific Interest east of Wallingford in Oxfordshire. Part of it is an Iron Age hillfort, Wyfold Castle, which is a Scheduled Monument.
Buckland Warren is a 0.04-hectare (0.099-acre) biological Site of Special Scientific Interest (SSSI) east of Faringdon in Oxfordshire.
Holton Wood is a 50.6-hectare (125-acre) biological Site of Special Scientific Interest east of Oxford in Oxfordshire.
Little Wittenham SSSI is a 68.9-hectare (170-acre) biological Site of Special Scientific Interest north-east of Didcot in Oxfordshire. It is also a Special Area of Conservation.
Ashford Hill Woods and Meadows is a 141.5-hectare (350-acre) biological Site of Special Scientific Interest near Ashford Hill in Hampshire. An area of 23.45 hectares is Ashford Hill NNR, which is a National Nature Reserve.
Emer Bog and Baddesley Common is a 50-hectare (120-acre) nature reserve north of North Baddesley in Hampshire. It is managed by the Hampshire and Isle of Wight Wildlife Trust. An area of 39.0 hectares is designated as Baddesley Common biological Site of Special Scientific Interest. An area of 37.6 hectares is designated Emer Bog Special Area of Conservation
Binswood is a 62.5-hectare (154-acre) biological Site of Special Scientific Interest southeast of Alton in Hampshire.
Botley Wood and Everett's and Mushes Copses is a 352.7-hectare (872-acre) biological Site of Special Scientific Interest north of Fareham in Hampshire.
