The study was carried out at small ponds in the Kakamega Forest, a rain forest in West Kenya. 89 6 i were marked individually and territorial ones observed for a total of 3171 min. Males behave territorially for a mean of 14 days, a maximum of 45 days. Intruders are driven out by the resident and do not show offensive behaviour. Different activities of territorial c? <? are distinguished. Most of the time the male spends perching in the territory (32% of total time in territory). Sun flights to the tree tops are the most frequent flight activity.