The present study investigated the contribution of fresh dung and urine patches and other background areas to the total N2O emissions of a grazed pasture system in Switzerland. For this purpose small-scale chamber measurements were compared to field scale eddy covariance measurement of N2O fluxes. It was found that urine patches are strong hotspots of N2O emissions and contribute a dominant share (about 60%) to the overall pasture emission during grazing periods. A simple up-scaling showed a fair agreement of average emissions observed by the two methods. Shortterm deviations between the methods indicate a strong effect of soil moisture conditions.