Southfield Farm Marsh is an 8.6-hectare (21-acre) biological Site of Special Scientific Interest in Kettering in Northamptonshire.[1][2] An area of 2.8 hectares is managed as a nature reserve by the Wildlife Trust for Bedfordshire, Cambridgeshire and Northamptonshire.[3]
The wetland has tall plants such as lesser pond-sedge and slender tufted-sedge, which provides cover for reed buntings and sedge warblers. Mammals include otters, and there are birds such as red kites and buzzards. Purple loosestrife is found in grassland areas.[3]
There is access to the nature reserve by a footpath from Polwell Lane, but the rest of the site is private land with no public access.
52°22′26″N 0°42′07″W / 52.374°N 0.702°W / 52.374; -0.702
