Buff Wood is a 15.8-hectare (39-acre) biological Site of Special Scientific Interest in Hatley in Cambridgeshire. It is managed by the Wildlife Trust for Bedfordshire, Cambridgeshire and Northamptonshire.
Holme Fen is a 269.4-hectare (666-acre) biological Site of Special Scientific Interest near Holme in Cambridgeshire. It is also a National Nature Reserve and a Nature Conservation Review site, Grade I. It is part of the Great Fen project, which aims to create a 3,700-hectare wetland wildlife area including Holme Fen, Woodwalton Fen and other areas. It is home to a variety of birds, including the Eurasian siskin, Nightingale and Lesser redpoll, and around 450 species of fungi.
Gamlingay Wood is a 48.4-hectare (120-acre) biological Site of Special Scientific Interest (SSSI) north of Gamlingay in Cambridgeshire. It is managed by the Wildlife Trust for Bedfordshire, Cambridgeshire and Northamptonshire.
Waresley and Gransden Woods is a 50-hectare (120-acre) nature reserve between Waresley and Great Gransden in Cambridgeshire, England. It is managed by the Wildlife Trust for Bedfordshire, Cambridgeshire and Northamptonshire. The site is a 54.2-hectare (134-acre) biological Site of Special Scientific Interest called Waresley Wood, with slightly different boundaries.
Overhall Grove is a 17.4-hectare (43-acre) biological Site of Special Scientific Interest to the east of Knapwell in Cambridgeshire. It is a Nature Conservation Review site, Grade II, and it is managed by the Wildlife Trust for Bedfordshire, Cambridgeshire and Northamptonshire.
Castor Hanglands is an 89.8-hectare (222-acre) biological Site of Special Scientific Interest west of Peterborough in Cambridgeshire. The site is also a National Nature Reserve, and it is a Nature Conservation Review site, Grade I for its woodlands and Grade 2 for its grassland. It is common land managed by Natural England.
West, Abbot's and Lound Woods is a 50.4-hectare (125-acre) biological Site of Special Scientific Interest south of Wittering in Cambridgeshire.
Balsham Wood is a 35 hectare biological Site of Special Scientific Interest south of Balsham in Cambridgeshire.
Brackland Rough is a 10.7-hectare (26-acre) biological Site of Special Scientific Interest in Fordham in Cambridgeshire. It is managed by the Wildlife Trust for Bedfordshire, Cambridgeshire and Northamptonshire as Fordham Woods.
Elsworth Wood is a 6.9-hectare (17-acre) biological Site of Special Scientific Interest between Cambourne and Elsworth in Cambridgeshire.
Aversley Wood is a 62.3 hectares biological Site of Special Scientific Interest south-west of Sawtry in Cambridgeshire. It is owned and managed by the Woodland Trust.
Eversden and Wimpole Woods is a 67.1-hectare (166-acre) biological Site of Special Scientific Interest between Kingston and Orwell in Cambridgeshire. The site has been designated a Special Area of Conservation for its barbastelle bats.
Carlton Wood is a 10.4-hectare (26-acre) biological Site of Special Scientific Interest on the eastern boundary of Cambridgeshire, and west of Great Bradley in Suffolk.
Ramsden Corner Plantation is a 3.2-hectare (7.9-acre) biological Site of Special Scientific Interest west of Northampton. It is managed by the Wildlife Trust for Bedfordshire, Cambridgeshire and Northamptonshire.
Perry Woods is a 67.9-hectare (168-acre) biological Site of Special Scientific Interest south-east of Kimbolton in Cambridgeshire. It is composed of three woods, the larger Perry West Wood and the smaller Perry Wood and Ash Wood.
River Ise and Meadows is a 13.5-hectare (33-acre) biological Site of Special Scientific Interest along the River Ise in Northamptonshire between Geddington and the Kettering to Corby railway line east of Rushton.
Stoke and Bowd Lane Woods is a 36.4-hectare (90-acre) biological Site of Special Scientific Interest west of Corby in Northamptonshire. The eastern half of Stoke Wood is managed by the Woodland Trust, a triangular area of 0.7 hectares which stretches south from the middle is the Stoke Wood End Quarter, a nature reserve managed by the Wildlife Trust for Bedfordshire, Cambridgeshire and Northamptonshire, and the remaining western part of the wood is private property. Bowd Lane Wood is private property.
Stoke Wood End Quarter is a 0.7-hectare (1.7-acre) nature reserve west of Corby in Northamptonshire. It is managed by the Wildlife Trust for Bedfordshire, Cambridgeshire and Northamptonshire, and is part of the Stoke and Bowd Lane Woods Site of Special Scientific Interest.
Short Wood and Southwick Wood is a 54.7-hectare (135-acre) nature reserve north-west of Oundle in Northamptonshire. It is managed by the Wildlife Trust for Bedfordshire, Cambridgeshire and Northamptonshire. Short Wood is a 25.3-hectare (63-acre) biological Site of Special Scientific Interest.
