Black-and-White Colobus Monkey in Budongo Forest

Black-and-White Colobus Monkey in Budongo Forest

Few animals announce the forest quite like the black-and-white colobus. You often hear one before you see it — a booming, roaring call rolling through the canopy at dawn — and then a flash of long white fur as a troop launches across a gap between the mahoganies. In Budongo Forest, on the southern edge of Murchison Falls, these striking leaf-eaters are among the most reliable and rewarding primates you can watch.

This guide is a practical species profile paired with the how, where and when of seeing them. It covers what makes the colobus so distinctive, how it lives high in the trees, where to find troops around Kaniyo Pabidi and the Royal Mile, and the best times of day and year to plan a walk.

Meet the Guereza: A Profile of the Eastern Colobus

The monkey you will see in Budongo is the eastern black-and-white colobus, Colobus guereza, often simply called the guereza. Adults are jet black with a dramatic U-shaped mantle of long white hair sweeping down the flanks, a white-framed face, and a spectacular white-tipped tail that can be longer than the body itself. That flowing coat is unmistakable, and once you have seen one draped along a branch in the morning light you rarely mistake it for anything else.

The name colobus comes from a Greek word meaning “mutilated” or “docked”, a reference to the animal’s most curious feature: it has no functional thumb. Where other monkeys have an opposable digit, the colobus has only a small bump, leaving the hand as a simple hook. Far from a handicap, this streamlined hand lets the monkey swing and grip branches at speed as it moves through the canopy.

Newborns look nothing like their parents. Infants are born pure white, a colour that fades to the adult black-and-white pattern over the first few months. The contrast makes babies easy to pick out within a troop, and other group members often help carry and mind them — behaviour biologists call “allomothering”.

Life in the Canopy: Diet and Behaviour

Colobus are dedicated folivores — leaf-eaters — and this diet shapes everything about them. Long-term studies of guerezas in Ugandan forests such as Kalinzu and Kibale have found young leaves making up the great majority of feeding time, sometimes around 85 to 90 per cent, with fruits, flowers and seeds taking over seasonally when fresh foliage runs short. They feed selectively, returning to favoured trees such as Celtis species that grow throughout Budongo.

Digesting a leaf-heavy diet takes special equipment. The colobus has a large, multi-chambered stomach where bacteria ferment tough plant material and neutralise the toxins many leaves contain, much as a cow’s stomach does. It is an energy-frugal system, which is why you so often find troops resting quietly and digesting through the middle of the day rather than roaming.

Socially, colobus live in tight troops of roughly three to fifteen animals, typically a single dominant male with several females and their young. Mornings begin with the resonant roaring contests between neighbouring males that carry for hundreds of metres and help space troops across the forest. They defend core feeding areas, and much of the day is spent grooming, resting and making the graceful, gap-closing leaps — sometimes several metres, tail streaming for balance — that thrill anyone watching from below.

Where to See Colobus in Budongo Forest

Budongo is the largest natural forest in East Africa and one of the easiest places to watch colobus, largely because the monkeys are abundant and the walking is gentle. Two ecotourism hubs anchor a visit, and colobus turn up readily at both.

Kaniyo Pabidi sits directly on the main Masindi–Paraa road, inside the greater Murchison Falls conservation area and about 29km north of Masindi. It is best known for habituated chimpanzees, but its flat, well-cut trails and the 600-metre canopy-viewing path near the site office are excellent for colobus, which move through the mahogany and ironwood in easy view. Because the terrain is level, it suits travellers who want a rewarding forest walk without steep climbs.

The Royal Mile, a broad, straight avenue in the Busingiro sector further west, is celebrated as one of Africa’s finest birding trails, and its high, closed canopy is equally good for primates. Alongside red-tailed and blue monkeys, colobus are among the species most commonly encountered here. Even if you have come chiefly for birds, expect the white mantles to appear overhead.

You will also spot colobus simply along the forested stretch of road near the Kichumbanyobo Gate, the southern park entrance where the tarmac cuts through Budongo. Troops feeding at the roadside are a familiar sight, and many visitors get their first sighting from the vehicle before they have even laced up their boots.

Best Times and How to Watch

Aim for the early morning. Colobus are most active soon after first light, feeding and calling before the day warms, and the low sun through the canopy is ideal for photographs of that white fur. Activity dips into a long midday rest, then picks up again in the late afternoon.

Colobus can be watched year-round, but the drier months — roughly December to February and June to September — make forest trails firmer underfoot and the walking more comfortable. A local guide is required for all forest walks in Budongo, and a good one is invaluable: they know which fruiting and leafing trees the troops are using and can lead you straight to them.

Bring binoculars, since the action is usually well overhead, and wear closed shoes, long sleeves and trousers against nettles and biting insects. Move slowly, pause often, and listen — the crash of a leap or a distant roar is frequently your best clue to where a troop is feeding. For more forest wildlife, see our guide to the best places to see primates in Budongo Forest and the birding in Budongo Forest guide.

Conservation and Why They Matter

The eastern black-and-white colobus is not currently considered globally threatened, and healthy populations persist across Budongo’s protected forest. That said, its future is tied directly to the forest itself. As a committed folivore reliant on specific food trees, the colobus is sensitive to logging and forest clearance, and Budongo’s long history of both timber extraction and protection is written into where the monkeys thrive today.

Colobus also play a quiet ecological role. By feeding heavily on leaves and helping recycle nutrients, and by dispersing some seeds, they are part of what keeps this ancient mahogany forest functioning. Watching them responsibly — keeping your distance, keeping quiet, and never feeding wildlife — supports the conservation work of the Uganda Wildlife Authority and the Budongo Conservation Field Station.

Frequently Asked Questions

Where is the best place to see black-and-white colobus in Budongo?

Kaniyo Pabidi offers the easiest access on flat trails, while the Royal Mile at Busingiro combines superb primate and bird watching. You may also see troops from the road near the Kichumbanyobo Gate.

What do black-and-white colobus eat?

They are folivores, feeding mainly on young leaves and switching to fruits, flowers and seeds when fresh foliage is scarce. A large multi-chambered stomach ferments the tough plant material.

Why are baby colobus white?

Infants are born entirely white and gradually develop the adult black-and-white coat over their first few months. The bright colour makes them easy to spot within the troop.

Do I need a guide and permit to see them?

A registered guide is required for all Budongo forest walks. Colobus are often seen during a general nature walk or a chimpanzee trek, and Murchison Falls park entry fees apply within the conservation area.

When are colobus most active?

Early morning is best, with a second burst of activity in the late afternoon. The middle of the day is usually spent resting and digesting high in the canopy.

Plan Your Safari

A colobus walk in Budongo pairs beautifully with chimpanzee tracking, forest birding and the open-savannah game of the wider park, giving you rainforest and Nile country in a single trip. Explore our Kaniyo Pabidi and Budongo primates guides, and get in touch to build a tailored Murchison Falls safari that puts the forest’s monkeys front and centre.