Category: Blog

One Saturday afternoon, I took my five-year-old to a shopping mall. As usual, there were a lot of sale items on display at the mall. One, in particular, caught her attention: a dome tent. Curiously, she peeped inside the tent and asked me if she could have it as her home. I promised to buy her the tent the following week. The time came, and she came asking for her promise. Oops, it had slipped off my mind! She reminded me I had promised to get her a nest. A nest? I pondered. Yes, she insisted, saying I had promised to get her a house that looked like a bird’s nest for her to live in, referring to some weaver bird nests we had seen on a farm. Oh, I recalled amid some laughter. She meant the tent!

Talking of homes, it’s everybody’s dream to own one, a place to call their own. The array of numerous architectural marvels dotting our landscape exhibits the dynamics of modern building trends and designs. But what inspires all these home designs? Is it creativity? Is it necessity, functionality or the desire to fit?

A Village Weaver constructing a nest. PHOTO CREDIT :PETER USHER

For birds, it is a different notion altogether. Each species has a basic standard approach to nest building. Some birds seem to have mastered this art better than others. The nest-building skills, details and effort they display are beyond human imagination.

But what particular factors do birds consider when constructing their nests? Security is a prime consideration. Birds need to safeguard themselves and protect their eggs and young ones. They achieve this by strategically locating their nests.

An African Paradise Flycatcher nest. PHOTO CREDIT: PETER USHER

Many passerines (“songbirds” or “perching birds”) conceal their nests in thick bushes and lay ‘camouflaged’ eggs. Other birds resort to building numerous nests only to use one. The decoy nests serve to confuse predators. Some birds have nests with multiple false entrances.

Placing nests in hard to reach areas is another trick employed by birds for security. Some species build nests at the tips of thin branches that cannot support the weight of potential predators. Many birds of prey nest in inaccessible cliffs. Barbets, hornbills and woodpeckers find safety in holes on tree trunks, while bee-eaters prefer to burrow in the ground.

A nest Spot-flanked Barbet. PHOTO CREDIT: FRANCIS MUNGAI

Communal nesting for many of the weavers provides strength in numbers in mobbing predators and deterring them from accessing the nests. Some perch their nests’ entrances on thorny barricades.

Sparrows and some weavers have learnt the trick of securing their nests by building them close to human habitation. Interestingly, some birds engage ‘external protectors’ for their nests. They do so by building them near colonies of dreaded insects like ants, wasps or even bees!

Plovers simply gather small rocks or loose soil to lay and conceal their eggs.

All in all, nest building is a fascinating phenomenon, a marvel of our natural world, so to speak. Let’s go outdoors and enjoy nature’s thrilling experiences.

Do you know that:

Contrary to popular belief, birds don’t generally sleep in nests. While actively incubating eggs or raising chicks, birds may occasionally sleep on their nests. Once chicks are grown, the parent birds don’t return to their nesting sites to spend the night.

On Saturday, May 8th, Kenya joined the rest of the world to appreciate birds around them during the eBird Global Big Day. More than 51,000 people from 192 countries took part in arguably one of the biggest global bird watching event. The day saw a record one billion bird observations registered!

Kenya ranked 6th in the world with 811 bird species recorded, reaffirming its position as one of the global birding giants. In the top ten country list, Kenya was the only non-Americas (South and North). It was indeed a fantastic day for the birding fraternity in the country.

 

Appreciation goes out to the Nature Kenya Site Support Groups (SSGs) members from South Nandi Forest, Lake Elmenteita, Arabuko-Sokoke Forest, Mida Creek, Taita Hills, Mt. Kenya forest, Kinangop grasslands, Yala Swamp, Mumoni Hills and Tana River Delta for their outstanding contributions.  Kudos to Henry Ole Sanoe (Lake Elmenteita) and Ibrahim Ogolla (Yala Swamp) for making it to the country’s top ten eBirders list with 235 and 197 recorded species, respectively.

A special mention also goes out to Nature Kenya staff for their submissions to boost the Kenya list. They include Emily Mateche and Moses Nyawasa (Yala Swamp), Jennifer Adero (Tana River Delta), Juliet Mbaka (Loresho swamp), Paul Gacheru (Gitathura dam), Richard Kipngeno (Nairobi National Museum grounds) and Peter Muriithi (Paradise Lost).

It was great to see such enthusiasm from birders of all walks of life. Salute to you all. You made Kenya proud.

All in all, the Global Big Day in Kenya was a great success. The next event is on October 9th. It may sound far off, but early preparations are necessary.

 

In February, we reported the sighting of a Nile Crocodile on the banks of the Nairobi River at the Michuki Memorial Park. Interest, fear and skepticism greeted news of this unusual sighting in equal measure. Guess what, our reptile friend is still around, at the very same spot!

Today we stumbled on the croc, doing what it loves doing: basking by the river bank. It was not alone, though. Four Hadada ibises stood next to the croc, evidently maintaining a social distance.

Surprisingly, the recent rains seem not to have swept the crocodile further downstream. Interestingly, it also appeared to be well-nourished.

 

Crocodile aside, we were fortunate to spot a Great Sparrowhawk. The raptor flew in and perched high on a tall eucalyptus tree, a short distance from the nesting site (see the previous post). Eagerly, we waited to see if the sparrowhawk would fly to the nest. Well, it did not. The bird stayed put on the same spot for over 20 minutes.  By the time we left, it had not budged a single inch.

 

Our walk took us on almost a similar path to last week’s. There were many birds to listen to and watch. We started at the courtyard. Several Pied Crows were on the courtyard’s cabro-paved floor, pecking on termites that had flown out of their mounds the previous evening. Moving towards the Peace Path, we came across some White-eyed Slaty Flycatchers and Variable Sunbirds. Down near the Nairobi National Museum-Michuki Memorial Park boundary, we encountered Willow and Grey-capped Warblers, Holub’s Golden and Baglafecht Weavers, Northern Olive Thrush (now also called Abyssinian Thrush), Streaky Seedeaters, Bronze Mannikins, Singing Cisticolas, African Citrils, among others.

   

At Michuki Park, we spotted Village Indigobirds, Spectacled and Village Weavers, Montane White-eyes, Silvery-cheeked Hornbills, a Lesser Honeyguide, to mention a few. Today’s count was 29, plus of course, the crocodile.

Great Sparrowhawks have been nesting in a tall eucalyptus tree at the Nairobi National Museum for about a decade. In 2020 the nest disappeared, perhaps destroyed by heavy rain. The sparrowhawks, however, were still sighted at the museum.

For three separate days this April, John Mwacharo and I have been visiting a particular spot at the Nairobi National Museum grounds looking for a nesting Great Sparrowhawk. Today was no different. As usual, we set out early in the morning, armed with a pair of binoculars and a camera.

Like all our previous attempts, this hunt disappointedly yielded no result. Having abandoned this quest, for now, we decided to take a stroll at the adjacent Michuki Memorial Park.

Our leisurely walk took us downstream, on a path along the Nairobi River. Some months back, during a similar bird walk, we were amazed to find a crocodile basking on the river bank at this very spot. Today’s stroll was different. A few pairs of Hadada Ibises probed the green grass in search of food not far from a group of Bronze Mannikins. Up in the sky were a few Black Kites spiralling. The occasional chirping of Singing Cisticolas serenaded our beautiful morning.

Suddenly, two Black-backed Puffbacks appeared. One of the puffbacks, apparently a male, perched on a tree branch and put on a display. It started fanning its pure white plumes on its back in the shape of a powder puff. Not so far away, the other individual put up a similar display. Could it have been some form of competition, perhaps to win over the attention of a female? Or maybe a tussle over territory? We were left guessing.

Further ahead, we came across a lone male Red-backed Shrike. This Palearctic migrant kept hopping from one tree to another. Luckily for us, we managed to get a few shots of the bird before it flew away.

After spending a while downstream, it was time to head back. Colourful displays of blooming wildflowers brightened our path. A distinct bird call drew us to a canopy of tall trees. Unmistakably, it was that of a Black Cuckoo. For days I had been on the trail of this cuckoo – hardly ever recorded in Nairobi – at that particular area. All of my previous attempts to secure a sighting of this treetop dweller had ended in disappointment. On this day, we were determined to see the bird.

Several scans of the treetops once again yielded no visuals. Concealed, amidst the tree branches, lay the cuckoo. While we were unable to pinpoint its exact position, the bird insistently tormented us with its call. Perhaps a change of location would do the trick?

Strategically, we relocated to a spot directly under an avocado tree. Once again, we meticulously scanned the tree branches for any movement. Our efforts bore fruit this time around! Camouflaged between the topmost avocado branches sat the elusive bird. After several attempts, we barely managed a few not so clear snaps.

A feeling of triumph swept over us as we reviewed the photos we had taken that morning. The morning outing was refreshing. All in all, our impromptu morning bird walk recorded 28 species. Not bad, huh?