In contrast to the loud noisy wak wak wak of gibbon calls, Hose’s Langur males make soft woodpecker like rattles to announce the location of their troop. Calling is most common from around 5.30 am (pre-dawn) to around 9.30 am. From the Belalong Canopy Walkway you can sometimes hear two rival males calling to each other. Unlike gibbons which often call from prominent branches, langurs remain hidden whilst calling. In the past their calls were frequently mistaken for the drumming of small woodpeckers. Other sounds on the recording include; Yellow-crowned Barbet: trrrooook took took took trrrook, Blue-eared Barbet: prrk prrk prrk prrk prrk continuously, and the eerie whine of the Six o’clock Cicada. This cicada calls for around 15 minutes each time both at dawn and dusk. The exact time depends on the light which can vary widely on dull days. Tokay Gecko: huh huh huh huh and a babbler.