A Fieldwalking survey over 6.9ha of farmland to the east of Birch airfield revealed a small amount of prehistoric material. A sherd of flint- tempered pottery, probably of late bronze age or Early Iron Age date was found.

Six flints recovered from various parts of the site included a large fragment of an unfinished tool provisionally identified as a midddle palaeolthic handaxe or late neolithic discoidal knife. There was also a crested blade of possible Mesolithic, or less likely, neolithic date. The others were undiagnostic, comprising one blade fragment and three flakes, one of which may have been retouched. <1>.