ESSEX WILDLIFE TRUST FOCUS: VIEWS FROM THE NATURE RESERVES OF ESSEX Enriching our landscape - an Essex success story ANDREW MAY1 AND DAVID SMART2 1Conservation Manager and 2Warden Abbotts Hall Farm, Great Wigborough, Colchester, COS 7RZ. Abstract The plight of many formerly common farmland birds and other wildlife is well documented and the impacts resultant from the change from unintensive to intensive management of cereal fields and grasslands are summarised. The various habitat creation schemes and changes to farming methods that the Essex Wildlife Trust has implemented are discussed, with the aim of demonstrating that the decline of farmland species can be reversed, if farmland habitat infrastructure and management are re-assessed and modified. Introduction Essex Wildlife Trust purchased Abbotts Hall Farm in February 2000 to further its aims of conserving farmland wildlife and coastal marshes. The farm is situated alongside the Blackwater Estuary SSSI, which is one of the largest estuarine complexes in East Anglia, with the farm lying close to the RSPB's Old Hall Marshes, the National Trust's Copt Hall land and the Essex Wildlife Trust's Tollesbury Wick reserve. In October 2002 over 200 acres of low-lying land behind a 3.5km seawall was used to create the largest coastal re-alignment in Europe (May 2003). Furthermore, Essex Wildlife Trust has been creating various habitats, diversifying the arable crops and improving wildlife corridors throughout the farm. The farm has recently been opened to members of the public during the week. Farming and agricultural practices can have significant indirect effects on non-agricultural species. The decline in crop diversity has had an adverse effect on Grey Partridge Perdix perdix, Skylark Alauda arvensis, Brown Hare Lepus europaeus and Lapwing Vanellus vanellus. On the other hand, certain changes to farmland can bring considerable benefits. These include increasing the range of habitats, improving hedgerows and field margins with less cutting, and decreasing inputs of fertilisers, herbicides and pesticides. Before the Trust purchased the farm in 2000 the main cropping regime for over 30 years was dominated by growing wheat. Since then, several changes have also been introduced to the farmland including the reintroduction of sheep, increasing the diversity of arable crops, an organic trial and a programme of hedgerow coppicing and planting. Under the Countryside Stewardship Scheme, field margins and beetle banks have also been established. This is supporting Biodiversity Action Essex Naturalist (New Series) 21 (2004) 117