Environmental complexity is thought to influence time budgets. In this study, additional protective areas were created by adding vertical panels to the centre of the pen. There were cover treatments studied which consisted of cover frames with mesh and cover frames without mesh. Pens containing no covers served as controls. Two groups sizes were also studied (80 and 110). The chickens spent most of their time resting (64% of their time budget). Resting was higher in that had panels. The presence of panels and the age of the birds influenced the time spent moving and standing. Feeding and drinking were not influenced by the presence of panels. Foraging was greater in pens without panels. Group size affected preening and dust bathing behaviour. Activity budgets were influenced by the provision of pen enrichments.