Archive for March, 2010

Agamas and lizards

I’m always excited to come across Agamas  and lizards on our travels.  They are usually such colourful subjects to photograph, but even those that lack colour are still fascinating because of their beautiful scales, spines and armoury, which the camera captures so well!  We are lucky in Southern Africa to have such a huge variety of these little reptiles so my delight is bound to be ongoing as we come across more and more on our journeys  around the country.

Agamas are quite common in Namibia, especially in the rocky areas, although there are arboreal and terrestrial Agamas as well.  In Southern Africa there are eleven species, all quite similar in appearance but with different colours and marking.  They tend to camouflage themselves by picking up the colour of the substrate they inhabit, however when they are breeding they are brightly coloured and it is easy to distinguish between the males and females. Did you know that Agamas can change their colours much like a chameleon does, with males being able to change themselves to resemble females when they are in danger?

Male Namibian Rock Agama

The diet of the Namibian Rock Agama (Agama planiceps) consists mainly of insects – predominantly ants and termites.

Female Namibian Rock Agama

Females lay between 5 and 18 eggs in the middle of summer and these take about two months to hatch.   Don’t you love the ferocious mock teeth markings on her lips?  Very scary!!

Tree Agamas (Acanthocercus atricollis) usually have large blue heads and their diet consists of flying insects like grasshoppers, beetles and other goggas that inhabit the bark of trees.

Southern Tree Agama

Although I photographed this albino-like Agama in a tree, it’s colouring is a mystery to me and I’m not sure whether it is a rock or tree Agama.  It could be a juvenile still getting its colours, or an adult doing its chameleon camouflage trick!

Tree Agama

In central Namibia we came across this attractive Jordans Girdled Lizard.  Girdled lizards need the warmth of the sun to raise their body temperature, so they are known as heliotherms and as a result they are diurnal.   They tend to eat anything that they can catch which means that their diet is wide and varied, even including vegetation if no insects or small invertebrates can be found.  Note how well he blends into his environment.

Jordans Girdled Lizard

This Black Girdled lizard (Cordylus niger) was basking in the sun at Langebaan in the Western Cape.  Its dark colour serves the purpose of allowing it to absorb heat more effectively because it lives in an environment that has a lot of rain and mist.

Black Girdled Lizard

Finally, I’ll end off with a magnificent specimen of an Augrabies Flat Lizard (Platysaurus broadleyi), which, as its name suggests, was found in the Augrabies Falls area in the Northern Cape.

Augrabies Flat Lizard

Unlike their girdled cousins, flat lizards have smooth skin that has an almost velvet finish.  They also need the sun to initiate activity and then they spend their day searching for food, basking or interacting with other lizards.  Flat lizards tend to live on rocks as these quickly heat up bringing the lizards to their preferred temperature.

Bird of the week – Week 10 : White-tailed shrike

The white tailed shrike is one of the most easily recognized shrikes in the Southern African region. Looking a bit like an overgrown batis in its black, white and grey plumage, it gives the impression that its head is too big for its short-tailed body and long legs. It is a fairly small passerine, just 15 cm in length.
It is a near endemic to Namibia, found from a little south of Windhoek northwards into south west Angola. Throughout this region it is a common resident in areas of scrubby savanna and thornbush. It is usually found in pairs or small groups of around 12 birds. They forage in trees, gleaning insects from branches and foliage, and also in bushes and on the ground. They are active and restless, continuously on the move.
It is a noisy species, with a variety of far-carrying whistles and ringing calls from the males that are often answered by the females. Sexes are alike in plumage and the female is a little larger than the male. They are monogamous and the nest is a cup usually placed in a shrub or small tree. The female lays 2 to 3 eggs in the clutch that hatch after an incubation period of about 15 days. They have a life expectancy of around 16 years.
The scientific name for the White-tailed shrike is Lanioturdus torquatus;  lanioturdus
from the Latin “lanius” , a butcher or executioner (hence a shrike) and “turdus”, a thrush; torquatus being the Latin for collared. Thus it is a collared bird that looks like a shrike and also looks like a thrush. Now that’s a good name!
(Jane says:  I think it looks like its wearing a little grey waistcoat and a black bow-tie!)

Weekend at Dusternbrook Guest Farm

One of the things that strikes us about living in Windhoek is the fact that once you leave the city you are immediately out in nature and you really don’t have to drive very far to see game  in the countryside.  We chose Dusternbrook Guest Farm for a weekend away because it is so close to Windhoek (only 50 kms) and also because, unlike a lot of other game farms, it also offered camping.

In the 1960’s Dusternbrook was the first farm in Namibia to open its doors to paying guests with a view to offering them hunting and game viewing opportunities.  This concept was so successful it spawned the thriving guest farm business that operates throughout the country today.

The beautiful old farmhouse sits on the top of a mountain with stunning views over a dry river bed and the plains below.  There is an abundance of birdlife and one is able to wander around the farm (heat permitting) on various hiking trails, which we took full advantage of.

Purple Roller feeling the heat

On our first morning we walked for about six hours, spending time at their dam where we were shouted at and followed by inquisitive baboons.  The dam is home to many birds, especially cormorants and ducks.

The dam at Dusternbrook

I was fascinated by the numbers of brightly coloured dragonflies that were flitting about and spent a long time trying to capture them on camera.

Magnificent dragonfly

That afternoon we booked a game drive and were driven into their leopard enclosure where we were able to photograph this magnificent animal up close.

Leopard at Dusternbrook

The guide fed it chicken pieces which it obviously enjoyed. Even though we were only meters away from it in an open vehicle, we never felt threatened by the leopard at all.

Leopard at feeding time

From there it was on to the cheetah area.  Cheetahs are always fun to watch as they are so agile and interact with each other a lot.

Cheetahs waiting for food

As their enclosure is very big , they would be difficult to spot if one wasn’t there at feeding time when they rush to the vehicle expecting a meal!  Later we came across a small enclosure with a little cheetah with one leg missing.  It seemed quite happy in spite of its disability.

This cheetah had one leg missing

We were somewhat disappointed with the campsite at Dusternbrook.  The camping area was fenced off and very small, especially for the number of campers that they had.  In a land where space is no problem, it feels like an invasion of privacy to be so close to one’s fellow campers.  We thought that they could have made so much more of their camping facilities.  One thing that we did enjoy about the campsite was the huge tree we were parked under.  It was home to a Pearl Spotted Owl that we picked up in our spotlight.  Owls are always welcome visitors in our campsites!

The birdlife alone is enough to encourage us to return to the farm for another visit.  It’s a photographers paradise, although a little expensive as their rates for accommodation and game viewing are not cheap compared with other places in Namibia.