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Primates Mammal Endangered (IUCN)

Red Colobus

Piliocolobus tephrosceles Kiswahili: Mbega mwekundu

A rufous-crowned canopy monkey of the western forests — endangered, and the chimpanzee’s principal prey at Mahale.

Where to look
Mahale Mountains National Park Gombe National Park Western Tanzanian forest reserves
Best time
Year-round at Mahale; the dry season, June–October, when forest trails are easiest.
Habitat
Moist evergreen and semi-deciduous forest, gallery forest and forest-woodland mosaic in western Tanzania.
All Tanzania wildlife

In the field

Photograph coming soon

We publish our own photographs rather than stock pictures, so this profile is waiting on a red colobus image from one of our guides. It will be added as soon as we have one worth showing — the field notes below are complete in the meantime.

Species profile

About the red colobus

The ashy red colobus is a slender, long-limbed monkey with a rust-red crown and limbs and a dark grey back. It lives in large, loud troops high in the canopy of the western Tanzanian forests, and Mahale Mountains National Park is one of its most important remaining strongholds.

It has an unusual place in the ecology of Mahale: red colobus are the main mammalian prey of the park's chimpanzees, and cooperative chimpanzee hunts of colobus troops are among the best-documented predatory behaviour in wild apes. The species is classed as Endangered and its range is now badly fragmented.

Life in the wild

Behavior & relationships

Behavior

Diurnal and arboreal, feeding through the morning and resting in the heat. Troops are noisy and often mixed with red-tailed and blue monkeys.

Social life

Large multi-male troops of twenty to over eighty. Unusually among colobus, females rather than males disperse from their birth troop.

What makes it remarkable

Special features

A rust-red crown and limbs, and a central role in Mahale’s ecology as the chimpanzees’ main hunted prey.

See it responsibly

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Tell our Arusha team what you hope to see. We will match the season, parks and pace to your interests.