The main conclusion is that beef cattle at pasture spend approximately 95% of their time engaged in the major behaviours of grazing, resting/ruminating while either lying or standing and walking. An analysis of the diurnal rhythm of grazing indicated periods of increased grazing early in the morning and late in the afternoon in five of the herds, and in one of these, there was also a period of increased grazing in the middle of the day. In the sixth herd, there was no apparent diurnal rhythm in grazing behaviour.