Blue Monkey
Cercopithecus mitis
The Blue Monkey is an elegant, canopy-dwelling primate known for its striking 'crown' and incredible leaping ability. Though shy, these intelligent mammals are a prized sight for any backyard forest explorer.
Quick Identification
Size
Body length of 50–65 cm (20–26 in), with a tail up to 70 cm (28 in); weigh between 4–8 kg (9–18 lbs).
Colors
Deep slate-grey to olive-grey fur with a finely speckled appearance; dark black limbs; a distinct white or yellowish 'diadem' or brow band above the eyes.
Key Features
- Distinctive white or pale yellowish brow band (diadem)
- Long, dark tail used for balancing in high canopies
- Darker, almost black fur on the limbs and shoulders
- Gentle, rounded face with deep-set dark eyes
When You’ll See Them
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Behavior
Blue Monkeys are highly social primates that typically live in female-bonded groups led by a single dominant male. These troops, which can range from 10 to 40 individuals, spend the vast majority of their lives in the forest canopy. They are exceptionally agile, using their long tails as rudders while leaping between branches. While they can be shy, they are known for their complex vocalizations, including loud 'pyow' calls used by males to maintain spacing between groups.
In areas where human settlements border their natural forest habitats, Blue Monkeys can become quite bold. They are intelligent foragers and will quickly learn the locations of fruiting trees in suburban gardens or even visit bird feeders if they feel safe. Despite their name, they aren't truly blue; their coat is a sophisticated mix of grey and olive that provides excellent camouflage among the shadowed leaves of the high forest.
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Camera Tips
Because Blue Monkeys are primarily arboreal, the biggest challenge for any backyard explorer is height. If you have tall trees like Wild Fig or Water Berry on your property, avoid placing your camera at ground level. Instead, use a sturdy ladder to mount your camera 10 to 15 feet up a trunk, angled slightly downward toward a branch 'highway'—a horizontal limb that monkeys frequently use to travel between trees. Look for worn bark or droppings as evidence of a preferred path.
Lighting is crucial in the dense canopy where these monkeys spend their time. Set your camera to a high trigger speed to catch them mid-leap, and if your model allows, increase the ISO sensitivity to compensate for the dappled shade. Blue Monkeys move fast during their morning foraging runs, so a multi-shot burst mode is highly recommended to ensure you get a clear facial shot rather than just a blurry tail.
While we don't recommend feeding wildlife, you can naturally lure them into your camera’s frame by placing a solar-powered water dripper or a high-mounted bird bath. The sound of dripping water is a magnet for forest primates. If you are mounting your camera in a garden setting, aim it toward ripening fruit trees. During the dry season, they are much more likely to descend to lower levels to find moisture, making this the best time for closer-range captures.
Lastly, ensure your camera housing is extremely secure. Blue Monkeys are notoriously curious and possess high manual dexterity. If they spot a strange object on a branch, they may attempt to poke, pull, or groom it. Using a steel security box or a cable lock will prevent your equipment from being repositioned—or dropped from the canopy—by a persistent juvenile monkey.
Similar Species
Species that look similar or are commonly confused with Blue Monkey.
Sykes' Monkey
Often considered a subspecies, Sykes' monkeys have more reddish-brown fur on their backs and a whiter throat patch.
Vervet Monkey
Vervets are smaller, have a much lighter grey coat, and are frequently seen walking on the ground rather than staying in the canopy.
Red-tailed Monkey
Easily distinguished by a bright white heart-shaped patch on the nose and a distinctively chestnut-red tail.
Frequently Asked Questions
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