Author Archives: ngongforest


Understanding the degree to which trees, above all else actually maintain life on our planet is critical to our survival, and highly interesting. We hosted a group of families who home school their children and have community service as part of their curriculum and they identified environmental conservation to achieve this.They visited the education Centre, went for a forest walk and later learned about potting which is the initial stage of bringing up a tree and it is the initial process of starting a tree nursery. Anyone can start a tree nursery and a home garden too and we offer guidance on the same.





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Grazing, an illegal activity in the forest

Grazing in gazetted forests is an offence that the courts take seriously; recently a man was arrested by rangers on patrol and taken to court where he was fined and had a conviction recorded for unlawfully grazing cattle in the forest. Cattle heads grazing in the forests damages young trees and ends up intruding into the habitat of wild animals leaving them with insufficient water and food thereby endangering their existence. Cattle not only graze and trample on the newly growing trees but they also disturb the soil which can encourage the growth of weeds.





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Sykes’ monkeys were  named after English naturalist Colonel William Henry Sykes,they are also known as the white-throated monkey or Samango monkey.  They love forest canopies to help shield them from the sun and predators; and they do not often reach the ground because they love the shade of the tall trees.  The trees are safe for them.

monkey, sykes

Sykes monkeys have an average life span of around 27 years in the wild. They can range from 50 to 70cm in body length the males can weigh between 6-9kg and females 3-6kg. Majority of their co louring is grey, but they do have a blackish tail, limbs and shoulders with some chest-nut patches on their back and face. They have a white chin and throat and a white ruff that extends around part of their neck. They have gorgeous brown/orange eyes with a slightly large squashed nose.


Unlike the colobus Sykes eat a wide range of foods and are omnivorous and opportunistic; especially when it comes to unsuspecting tourists. Their main diet is shoots, fruits, leaves, flowers and berries, but they do also consume eggs, insects and any human food they can get their hands on.

sykes 1

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Girdling, also called ring-barking is the complete removal of a strip of bark  (consisting of cork cambium, phloem, cambium and sometimes going into the xylem) from around the entire circumference of either a branch or trunk of a woody plant. Girdling results in the death  of the area above the girdle over time. A branch completely girdled will fail and when the main trunk of a tree is girdled, the entire tree will die, if it cannot regrow from above to bridge the wound.

Those carrying out this destructive activity claim that the barks make good medicine for healing stomach aches, tooth aches and that they also increase blood in the body used after boiling the barks. Among the trees affected include Warbugia Ugandensis, Olea Capensis and Scherebera Alata. We are highly against debarking because once a tree is debarked the tree ceases to survive and becomes useless.Secondly the method used to prepare the claimed herbal medicine is not proffesional and might do more harm than cure to the person taking it.


debarked 1

debarked 2


Crowned eagles are not the largest eagles in Africa—martial eagles claim that title—but they are the most powerful. Their legs are thick, and they have a very long talon on each back toe that helps them kill animals more than four times their size. Crowned eagles live in the tall woodland forests and rain forests of Africa. Built for flying among trees, the crowned eagle’s wings are short and broad, and its long tail helps guide the bird like a rudder guides a boat. These features allow the eagle to fly easily through the branches.


Adult crowned eagles have a dark brown head with long crest feathers tipped in white, a cream or reddish breast with black bars, and wings that are black on the top and reddish underneath. Like many raptors, the female is larger than the male.

crown eaglecrowned eagle

As the most powerful eagle in Africa, the crowned eagle is able to kill animals weighing up to 44 pounds (20 kilograms). The eagle’s long hind talon helps break the prey’s spine  A favorite method of hunting is to sit in a tree overlooking a waterhole or clearing and then simply drop down onto the prey. When hunting monkeys, a crowned eagle flies over the forest canopy until a troop of monkeys can be heard. The eagle lands on a branch and tries to get as close as possible to the monkeys without being seen before attacking. A crowned eagle pair may hunt together: the male flies high and calls out to get the attention of monkeys in the trees below; the female then skims the treetops and grabs a confused monkey. They prefer to carry their kill into a tree to eat in safety, but they can’t carry anything heavier than themselves. If the kill is too heavy, it will be torn apart on the ground and the pieces stored and eaten over several days or brought back in pieces to the nest. Crowned eagles also eat small antelope, mongooses, rats, monitor lizards, and snakes.

1 . Crowned Eagle with Vervet Monkey prey


Like many eagles, the crowned eagle male performs a beautiful courtship flight to impress a female. He flies very high into the air and makes a series of swooping dives and climbs, like a roller coaster. At the top of each loop, he flaps his wings quickly several times, throws his head back, and calls loudly for up to 30 seconds. If the female joins him, they may lock talons and cartwheel down toward the ground, only letting go at the last second.


The pair uses the same nest for many years until a new pair inherits it. The nest is made of sticks and lined with fresh, green branches. The eagles add new material to the nest each year, and over time the nest can grow up to 8 feet (2.4 meters) across and 10 feet (3 meters) deep. It typically rests in a 40- to 150-foot-tall (12 to 46 meters) tree.


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Most species of ficus found in kenya are monoecious i.e. male and female flowers occur together within a single fig. Locally the strangler fig or the Wild Fig is known as the Mugumo tree.  Ancient Kikuyu tradition holds this tree as a sacred tree, because it was thought that spirits, especially deceased ancestors, dwelt in this tree.  Therefore, when clearing a field for cultivation, the Kikuyu will never cut down a Mugumo tree that happened to be in the field and thus these trees will often grow to be very old. In ancient times, ceremonies and sacrifices were often carried out under large Mugumo trees.

strangler fig tree

The roots grow down to the forest floor where they take root and begin to take nutrients from the soil. Gradually the roots wrap around the host tree, widen, and slowly form a lattice-work that surrounds the host’s trunk. The fig’s crown grows foliage which soon overshadows the tree. Eventually, the host tree dies leaving the fig with a hollow trunk—which is easily climbed thanks to the many openings in the trunk. Figs are often the only tree species remaining after forest clearing, since their knotted and twisted wood is shunned by loggers.

strangler fig tree

strangler tree 1

Almost ironically, this agent of death provides an important niche and food  source to many rain forest creatures. Its hollow trunk,  with an abundance of  nooks and crannies, provide an important home to thousand of invertebrates,  rodents, bats , reptiles, amphibians and birds.  many other species are attracted to the fig trees because  of its production in large amounts of good tasting  fig fruits. These fruits are packed with seeds which are not destroyed when they are consumed, and are passed out in the dung of animals far from the mother tree.  In many forests the fig tree is considered a keystone species since during parts of the year it is virtually the only tree producing fruit.

Fruit at Green Cay Wetlands Boynton Beach, Florida - Credit: Forest & Kim Starr - Plants of Hawaii - Image licensed under a Creative Commons Attribution 3.0 License, permitting sharing and adaptation with attribution.


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For the fourth time now, Riara Group of Schools held a Charity Walk in aid of Starehe Girls Centre at the Sanctuary on Saturday. This is the Starehe Girls’ Centre 12th Academic Year and a major milestone given the support they have continued to receive in sustaining a Centre of Excellence in education for brilliant and needy girls.

The walk attracted over 3000 participants from all walks of life with the biggest number being students from various schools in Nairobi. By 9am most of the participants had arrived and were being entertained by the Starehe Girls and Boys band.


at the venue


excited to be in the forest

Talk of excitement!!





nrfa vice chair

Ngong Road Forest Association Vice Chairman gives a speech

the band

Starehe Girls and Boys Band entertains

all smiles

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For the fourth  time now, Riara Group of Schools will be holding a Charity Walk in aid of Starehe Girls Center at the Sanctuary on Saturday 4th June 2016.

For the many participants that will turn up for the walk, it will be a great chance to interact with nature and they walk for a worthy course, talk of double benefits.

the puddle we had to walk through

the band entertains

warm up 2

Pictures from previous events



Preparations for the Saturday’s charity walk
Many organizers of such events have come to realize this and are now turning to natural environments as they are more serene, less polluted and in fact guarantee the participants a refreshing feeling at the end of the event.

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Last Saturday we hosted EduKenya for a cycling event which was aimed at raising money for giving quality holistic education to children within Mathare Slum. EduKenya seeks to educate, empower and transform communities through education.

parking lot

warm up

warm up 1




The event was a great success despite the heavy downpour on both Friday and Saturday.

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Ngong Forest Sanctuary hosts Baiskeli Adventures for a cycling event

In the recent past we hosted Baiskeli Adventures for a cycling event which was a big success. both the young and the old turned up in big numbers as they cycled in the well marked nature trails enjoying the serenity and interacting with the Sykes monkeys.


arrivalat the sanctuary

Arrival at the Sanctuary

at the beggining

The flag off


Well marked nature trails


Even the kids joined in

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