Jess Brooks (GWCT) with Countryfile s Ellie Harrison and farmer Rob Shepherd and team preparing to dig a turtle dove puddle Farms in Dorset and Wiltshire are the stars of tonight s BBC Countryfile. Tonight (Sunday, May 9) at 6pm farms from the Martin Down Supercluster will be showcasing their conservation efforts. The ‘Supercluster’ is a unique collaboration of three ‘Farmer Clusters’ made up of 46 farms which together cover 236km2 of the Cranborne Chase area of Dorset, Hampshire and Wiltshire, surrounding the famous wildlife-rich Martin Down National Nature Reserve. Farmer Clusters are groups of neighbouring farmers who work together to deliver benefits for soil, water and wildlife at a landscape scale.