Suffolk Wildlife Trust (SWT) describes itself as the county's "nature charity – the only organisation dedicated wholly to safeguarding Suffolk's wildlife and countryside." It is a registered charity, and its headquarters is at Brooke House in Ashbocking, near Ipswich. It was founded in 1961, and is one of 46 wildlife trusts covering the Great Britain and Northern Ireland. As of March 2017, it has 13,200 members, and it manages 3,120 hectares of land in 60 nature reserves, most of which are open to the public. It had an income of £3.9 million in the year to 31 March 2017.
Rex Graham Reserve is a 2.8 hectare biological Site of Special Scientific Interest east of Mildenhall in Suffolk. It is a Special Area of Conservation, and part of the Breckland Special Protection Area. It was formerly managed by the Suffolk Wildlife Trust.
Queendown Warren is a 22.2-hectare (55-acre) biological Site of Special Scientific Interest south-east of Rainham in Kent. It is a Local Nature Reserve, a Nature Conservation Review site, Grade 2, and a Special Area of Conservation. It is in the Kent Downs Area of Outstanding Natural Beauty. It is managed by the Kent Wildlife Trust, and part of it is owned by Plantlife.
Bradfield Woods is an 81.4 hectare biological Site of Special Scientific Interest between Bury St Edmunds and Stowmarket in Suffolk. The site is in three separate blocks, the adjoining Felsham Hall and Monkspark Woods, and the much smaller separate Hedge Wood and Chensil Grove. Felsham Hall and Monkspark Woods are designated a 63.3 National Nature Reserve, also called Bradfield Woods, and are managed by the Suffolk Wildlife Trust.
Arger Fen is a 49.7 hectare biological Site of Special Scientific Interest (SSSI) south-east of Sudbury in Suffolk, England. The site occupies two separate areas. The 17.6-hectare (43-acre) Arger Fen Local Nature Reserve is part of the larger eastern block, and contains part of the 21-hectare (52-acre) Tiger Hill Local Nature Reserve, along with part of the 110-hectare (270-acre) Arger Fen and Spouse's Vale, a nature reserve managed by the Suffolk Wildlife Trust. The site lies in the Dedham Vale Area of Outstanding Natural Beauty,
Wangford Warren and Carr is a 67.8 hectare biological Site of Special Scientific Interest between Brandon and Lakenheath in Suffolk. It is a Nature Conservation Review site, Grade I, and part of the Breckland Special Area of Conservation, and Special Protection Area An area of 15 hectares is managed as a nature reserve by the Suffolk Wildlife Trust
Bonny Wood is a 20 hectare nature reserve east of Barking Tye in Suffolk. It is managed by the Suffolk Wildlife Trust. The site is part of the Barking Woods biological Site of Special Scientific Interest.
Bull's Wood is a 12 hectare nature reserve east of Cockfield in Suffolk, England. It is managed by the Suffolk Wildlife Trust, and is part of the Thorpe Morieux Woods Site of Special Scientific Interest.
Snape Marshes is a 19.8 hectare nature reserve south-east of Snape in Suffolk. It is owned and managed by the Suffolk Wildlife Trust.
Monewden Meadows is a 3.7 hectare biological Site of Special Scientific Interest south-west of Monewden in Suffolk. It is a Nature Conservation Review site, Grade I, and it is managed by the Suffolk Wildlife Trust under the name Martins' Meadows.
Roydon Fen is a 17.2 hectare Local Nature Reserve south of Roydon, on the western outskirts of Diss in Norfolk. It is owned by South Norfolk District Council and managed by the Suffolk Wildlife Trust.
Gunton Meadow is a 2 hectare nature reserve in Lowestoft in Suffolk. It is managed by the Suffolk Wildlife Trust.
Roydon Common is a 194.9-hectare (482-acre) biological Site of Special Scientific Interest east of King's Lynn in Norfolk. It is also a Grade I Nature Conservation Review site, a National Nature Reserve and a Ramsar site. It is part of the Roydon Common and Dersingham Bog Special Area of Conservation and Roydon Common and Grimston Warren nature reserve, which is managed by the Norfolk Wildlife Trust,
Foxley Wood is a nature reserve in Foxley, Norfolk, England, the largest ancient woodland and coppice in Norfolk. The Norfolk Wildlife Trust, which manages this reserve, bought it in 1998. It is 123 hectares in size. It is a Site of Special Scientific Interest, a Nature Conservation Review site, Grade 2, and a National Nature Reserve.
Short Wood and Southwick Wood is a 54.7 hectare 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 biological Site of Special Scientific Interest.
Gunton Wood is a 2.8 hectare Local Nature Reserve in Lowestoft in Suffolk. It is owned by Waveney District Council and managed by the Gunton Wood Community Project.
Barking Woods is a 98.7 hectare biological Site of Special Scientific Interest in six separate blocks north-east of Ipswich in Suffolk. Part of it is a 20 hectare nature reserve called Bonny Wood, which is owned and managed by the Suffolk Wildlife Trust.
Thorpe Morieux Woods is a 45.2 hectare biological Site of Special Scientific Interest north of Thorpe Morieux in Suffolk. Part of it is Bull's Wood, a nature reserve managed by the Suffolk Wildlife Trust.
