The behaviour of a wintering urban flock of mute swans was studied at Cork Lough over a single winter 1990-91. Swimming was the most common activity representing 55% of the time, with feeding and preening being 36% and 15% respectively. Patterns of daily activity different from those of other published studies, feeding increased significantly throughout the day, but the rate of feeding over the study period did not vary. When data for Saturdays and Sundays were omitted (the time of most bread provisioning), a different pattern of bread feeding by swans was observed. -from Authors