Red Leaf Monkey
Sounds & Calls

The Red Leaf Monkey (Presbytis rubicunda) is a species of primate endemic to Borneo. This species is found mainly in primary lowland rainforest and swamp forest, although it appears to be able to adapt reasonably well to some forest disturbance and is found in secondary forests in parts of its range. Confusingly, Red leaf Monkeys are are referred to by a variety of different common names including Maroon Leaf Monkey, Maroon Langur, Maroon Surili and Red Langur!

The most commonly heard sound made by Red Leaf Monkeys (Presbytis rubicunda) is a cackling call, often given in alarm when then sense they are being approached. The call is often followed by the crashing of branches as the caller leaps away (you can hear an example of this in both the video and audio samples below). These calls are quite similar to other species of leaf monkey/langur in the genus Presbytis.