site is very important because it supports a range of rare and uncommon flora and fauna, including lesser skullcap, stag's-horn clubmoss and the velvet ant, which has not been recorded anywhere else in the County. It is also home to a large number of breeding birds and is an important site for the green hairstreak butterfly. Sites The Trust currently manages the following reserves: Notes Durham Wildlife Trust has prepared short information sheets for most of its reserves. The information in this table is mostly extracted from these information sheets. Grid references use the British national grid reference system (OSGB36), the system used on Ordnance Survey maps. The grid reference for each reserve relates to the approximate centre of the reserve. References External links Low Barns Volunteer Website 1971 establishments in England Charities based in County Durham Organizations established in 1971 Wildlife Trusts of England