Non-inversion tillage and farmland birds in winter

摘要

This study investigated the effects of non-inversion tillage and ploughing establishment methods of winter wheat and barley crops on field use by wintering farmland birds. Birds were censused on 121 fields during winters 2000 to 2003, using standard whole-field count methodologies. The data were analysed using multivariate logistic regression methods, to assess the differences in bird occupancy between fields with the two crop establishment methods, whilst controlling and testing for effects of a variety of other variables. Skylarks, granivorous passerines and gamebirds were found more regularly on fields established by non-inversion tillage than conventional tillage.