Category Archives: South African Wildlife

The inhabitants of South Africa’s wild places

African Oystercatcher

Haematopus moquini

The African Oystercatcher occurs only along the coastline of Namibia and South Africa (mainly the Cape Provinces and only sporadically into Kwazulu-Natal) where they frequent the intertidal zone on rocky and sandy beaches, estuaries, lagoons and coastal wetlands looking for molluscs (mostly mussels and limpets) and other aquatic invertebrates.

With an average weight of around 730g, females are slightly larger than males. Adults have a wingspan of about 80cm.

While non-breeding individuals can congregate in flocks of up to 200 birds, especially at roosts, breeding pairs of African Oystercatchers are territorial and monogamous and may stay together for as long as 25 years. They breed in spring and summer, with a peak over December and January, which makes them especially vulnerable to disturbance by holiday makers. Nests are located on rocky islands or beaches and is little more than a bare scrape above the high-water mark. Despite the meagre appearance of the nest the eggs are extremely well camouflaged. Both parents take turns to incubate the clutch of 1-3 eggs for between 4 and 5 weeks, with the chicks leaving the nest as soon as they are a day or so old. Chicks fledge when they are about 6 weeks old but can remain with their parents for up to 6 months.

Today, the IUCN considers the African Oystercatcher as being of least concern, with an increasing population size thanks to improved conservation measures (such as banning 4×4 driving on beaches). It is estimated that there is now around 6,700 of them, which is probably about double the number that existed in the 1970’s, and their conservation status could recently be upgraded from “near-threatened”. Birdlife South Africa has designated the African Oystercatcher as the 2018 Bird of the year – good places to see them is the Agulhas, Garden Route and Table Mountain National Parks.

African Oystercatcher

African Oystercatcher at nest with eggs

African Oystercatcher on nest

African Oystercatcher nest – can you spot the egg?

African Oystercatcher

African Oystercatcher flock

African Oystercatcher

African Oystercatchers

African Oystercatcher

African Oystercatcher (photo by Joubert)

African Oystercatcher

Black Oystercatchers

African Black Oystercatcher

Angulate Tortoise

17 Replies

Chersina angulata

The most commonly encountered tortoise in the thickets, fynbos and karoo scrub of South Africa’s south-western corner, Angulate Tortoises show a marked preference for sandy areas, and feed on grasses, annuals and succulents. They drink water through their nostrils! Adult male Angulate Tortoises are noticeably larger than the females, grow to as much as 30cm in length and can weigh up to 1.5kg, which is unusual as females are bigger than males in most other tortoise species.

Adults are usually solitary, except when mating, and have small home ranges of up to only 2 hectares. Angulate Tortoises are diurnal, often hiding under vegetation, among rocks or in holes in the ground during the hottest parts of the day or in bad weather. To escape danger they will retract their head, neck and limbs into the shell and will squirt the contents of its bowels if picked up.

Both sexes reach breeding age at between 10 and 12 years old. During the mating season, which spans spring and summer, males will engage in intense fights for dominance and try to flip each other over (with some effort they are normally able to get back on their feet). After mating, females can delay fertilisation until favourable environmental conditions prevail, which is normally just after rain has softened the soil. She then digs a small hole, lies a single egg weighing between 20 and 25g, fills the hole back up and taps the soil down with her shell. Under favourable conditions females can lay up to 6 eggs in a season. Incubation takes 90 to 200 days, depending on ambient temperatures, and when the tiny hatchlings emerge they weigh only 8-12g.

The Angulate Tortoise is commonly seen in parts of the Eastern, Western and Northern Cape Provinces, as well as in southern Namibia. The IUCN considers it as being of least concern as it is very numerous with few significant threats (such as habitat destruction and the illegal pet trade) to its continued survival. They are unfortunately very prone to dying in wildfires. The Angulate Tortoise has a life expectancy in the wild of around 30 years.

Angulate Tortoise

Angulate Tortoise hatchling

Angulate Tortoise

Angulate Tortoises

Angulate Tortoise

Bontebok

13 Replies

Damaliscus pygargus pygargus

The Bontebok is a medium-sized antelope endemic to a small piece of South Africa’s southern coast and adjacent interior, stretching from Caledon in the west to Mossel Bay in the east, and from the Langeberg Mountains southwards to the ocean both east and west of Cape Agulhas. Considered abundant in early colonial times, hunting, competition for grazing with domestic stock and loss of habitat almost drove it to extinction. The IUCN considers the Bontebok’s conservation status as “Vulnerable” due to its restricted distribution, fragmented and transformed habitat, low numbers and the threat of hybridisation with the closely related (at subspecies level) Blesbok. The effort to save the Bontebok from extinction became a national priority in the 1930’s with the proclamation of the Bontebok National Park (read here for more). While there may now be as many as 3,500 Bontebok in the country, many of these are on private properties both within and outside their historical range and may possibly be hibridised, with only approximately 700 or so individuals tested for genetic purity and occurring at four formally protected areas (of which Bontebok National Park is one) within the historic distribution of the species. The Cape of Good Hope section of the Table Mountain National Park is another good place to see Bontebok, but that population is considered to be outside their natural distribution range.

Bontebok

Bontebok grazing in the Postberg section of the West Coast National Park

Bontebok

Bontebok on the beach at Buffelsbaai in the Table Mountain National Park

Bontebok

Bontebok lying in a sea of Cape Snow

Bontebok on the run

Bontebok

Bontebok are almost exclusively grazers, showing a preference for areas of short grass and recently burnt veld, usually in open, undulating areas with good visibility in the heathland (fynbos and renosterveld) that cover their limited distribution range. They are dependent on easily accessible water sources and stay within 1.5km from a reliable supply, especially in the dry season. Thickets are important as refuges from cold weather. Bontebok stand around a meter high at the shoulder and weigh around 60kg.

From about the age of 5 years, adult Bontebok rams establish small territories (4 to 30 hectares) which they mark with dung heaps and defend throughout the year, and in which they attempt to keep breeding herds consisting of ewes and lambs for as long as possible so as to mate with any receptive females. The females in the breeding herds, which number between 6 and 30 animals, maintain a strict hierarchy. Young rams, and older males displaced from their territories, roam together in bachelor herds which are often even bigger than the breeding herds. The rutting season peaks from January to March, with most lambs being born in September and October. Ewes give birth to single lambs weighing around 6kg that can run with the herd within an hour of birth!

Bontebok

Bontebok lamb

Bontebok running across our way (photograph by Joubert)

Bontebok

Bontebok outside our chalet at Bontebok National Park (photo by Joubert)

Bontebok lamb

Bontebok

Bontebok herd (photo by Joubert)

Bontebok

Bontebok (photo by Joubert)

Bontebok ewe and lamb

Bontebok at the Cape of Good Hope

Bontebok

White-fronted Plover

Charadrius marginatus

Usually seen in pairs or small flocks, the White-fronted Plover is a small (50g, wingspan 40cm) wading bird inhabiting mudflats, sandy beaches, and the shorelines of estuaries, large lakes and rivers, where it feeds on worms, snails, insects and crustaceans.

White-fronted Plovers nest in shallow scrapes in the sand, often quite exposed and usually far above the high-water mark. Pairs are monogamous and often stay together, in the same area, for many years. Nesting has been recorded throughout the year, but there is a definite peak in the spring and summer. Clutches consist of 1-3 eggs and are incubated by both parents for around a month. When threatened at the nest, the parents will cover the eggs with sand before fleeing. The precocious chicks feed themselves from birth and fledge when they are about 6 weeks old.

In South Africa, White-fronted Plovers occur all along the coast and along the rivers of the Lowveld. North of our borders, and south of the Sahara, the White-fronted Plover occurs along the Atlantic and Indian Ocean coastlines as well as most of the larger inland wetlands and rivers. While loss of habitat is causing the population of this species, currently estimated at around 100,000 birds, to decline, the IUCN considers it to be of Least Concern.

White-fronted Plover

Cape Cormorant

16 Replies

Phalacrocorax capensis

The Cape Cormorant is strictly a marine species, usually foraging in large flocks within 10km from the coastline and very seldomly venturing inland to feed in freshwater environments. Two kinds of pelagic schooling fish, the anchovy and pilchard (sardine), form the staple of the Cape Cormorant’s diet and are pursued under water to depths of over 30m. Adults weigh as much as 1,6kg, with a wingspan of around a metre.

Cape Cormorants nest in large, densely packed colonies, often mixed with other kinds of seabirds and mainly on rocky islands and outcrops in the sea, inaccessible cliffs along the coast, or shipwrecks. They breed throughout the year, with a peak in spring and summer. Pairs are monogamous, with the males fighting for the best nest spots. Nests are built of seaweed and sticks. Clutches consist of 1-5 (rarely up to 7) eggs and are incubated by both parents for 3 to 4 weeks. Chicks fledge when they are about 9 weeks old and are then cared for by the parents for several more weeks.

The Cape Cormorant occurs along the entire coastline of Namibia and South Africa and only marginally into Angola and Mozambique, with some venturing as far north as the mouth of the River Congo. They are most common along the Atlantic (west) coast, with less than 1% of the breeding population occurring east of Cape Agulhas. The IUCN classifies the Cape Cormorant as Endangered, due to a massive decline in their population over the past 30 years brought on by overfishing, oil pollution and disease outbreaks. The total population is currently estimated at about 230,000 mature individuals, and still in decline.

Cape Cormorant

Cape Cormorants setting out to forage at sea

Cape Cormorant colony on a rock near Simon’s Town

Cape Cormorant

Cape Cormorants in flight

Cape Cormorants flying over the coast at Cape Columbine

Cape Cormorant

Cape Cormorants at Stony Point

Cape Cormorant

Cape Cormorants at Stony Point

Cape Cormorant

Cape Cormorant juvenile

Cape Cormorant

Cape Cormorant feeding chick

Cape Cormorant chicks

Cape Cormorant

Cape Cormorant chicks begging for food (photo by Joubert)

Cape Spurfowl

14 Replies

Pternistis capensis

Cape Spurfowl, also known as Cape Francolin, inhabits areas of fynbos, heathland and semi-arid scrub, usually near a reliable water source, and also utilises nearby orchards, vineyards, cultivated fields, pastures and suburban parks and gardens. It has an omnivorous diet, feeding primarily on seeds, fallen fruits and berries and a wide variety of invertebrates. Male Cape Spurfowl are quite a bit bigger than the females and may weigh up to a kilogram.

The breeding season for Cape Spurfowl commences in early spring but stretches right through to the end of summer. The nest is a simple scrape in the ground, hidden among vegetation, in which the female incubates a clutch of 1-4 eggs for around 3 weeks. Larger clutches of up to 14 eggs have been recorded, but are thought to be of multiple females laying in the same nest.

The Cape Spurfowl’s distribution is mainly centred on South Africa’s Western Cape Province, extending into adjacent areas of the Eastern and Northern Cape, and reaching southern Namibia along the course of the Orange River. With a common and stable population, the IUCN considers the Cape Spurfowl to be of least concern.

Cape Spurfowl

Cape Spurfowl (photo by Joubert)

Cape Spurfowl

Cape Spurfowl (photo by Joubert)

Cape Spurfowl

Cape Spurfowl (photo by Joubert)

Cape Spurfowl

Cape Grey Mongoose

8 Replies

Galerella pulverulenta

The Cape, or Small, Grey Mongoose is a commonly encountered small carnivore, thanks to its diurnal habits, They occupy a wide variety of habitats, ranging from semi-desert scrub to mountains and coastal thickets, and subsist on a diet of rodents, birds, reptiles, amphibians, invertebrates, carrion and wild fruits.

Weighing in at between 500 and 1,250g, with a length of up to 75cm (excluding the tail), the Cape Grey Mongoose is usually solitary, and moves through their small home range along well used pathways. At night they lie up in thickets, piles of rocks or in tunnels dug by other animals. These sites are also used as dens where females give birth to litters of 1-3 young, mostly between August and December. They have a natural life expectancy of about 8 years.

The Cape Grey Mongoose occurs only in South Africa (Kwazulu-Natal. Free State, Eastern Cape, Northern Cape and Western Cape), and marginally into Lesotho and Namibia. Thanks to a common, stable population the IUCN evaluates it as being of least concern.

Cape Grey Mongoose

Cape Grey Mongoose visiting us at the chalet in Lilydale (photo by Joubert)

Cape Grey Mongoose

Cape Sugarbird

9 Replies

The Cape Sugarbird is endemic to the fynbos regions of the Western and Eastern Cape, where it feeds mainly on nectar, especially of Protea-species (and as such is a major pollinator of these plants), and insects. It is also seen in gardens, especially in the summer. With its long-tail, the male Cape Sugarbird can grow to up to 44cm in length, weighing up to 50g.

Cape Sugarbirds breed mainly in autumn and winter, to coincide with the Protea flowering season. Pairs are monogamous, with the male aggressively defending the nesting site while the female builds the cup-shaped nest of dead leaves and dry grass, usually among the leaves of a Protea-bush. The female incubates the clutch of 1 or 2 eggs alone, for a period of up to 3 weeks. Chicks leave the nest at about 18 days old, and then stay with their parents for only another 3 weeks before attaining independence.

While the IUCN considers the Cape Sugarbird to be of least concern, they are at long term risk due to habitat loss brought on by development and invasion of their habitat by alien plants.

Cape Sugarbird

Cape Sugarbird (photo by Joubert)

Cape Sugarbird

Cape Sugarbird on a Pincushion bush

Cape Sugarbird

Cape Sugarbird (photo by Joubert)

Cape Sugarbird on a Pincushion flower

Cape Sugarbird

Hartlaub’s Gull

8 Replies

Chroicocephalus hartlaubii

Hartlaub’s Gull is a gregarious species that forages, roosts and nests in large flocks. They occur in coastal areas – inshore waters less than 50m deep, estuaries, lagoons, beaches and harbours, and rarely venture further than 20km from land. Their natural diet relies in a large part on marine invertebrates associated with beached kelp, supplemented with fruits, eggs and small fish. They also frequent sewerage works, rubbish dumps and abattoirs for easy pickings.

Breeding takes place at anytime of the year, though some localities show distinct peaks in nesting activity at varying times of the year. Breeding colonies are established on flat, rocky islands, coastal pans, in harbours and even on top of buildings, where the nests are small hollows of matted plant material. Pairs are monogamous and aggressively defend a small patch around their nest. Clutches of one to three eggs are incubated by both parents for just short of 4 weeks. Chicks attain adulthood at around two years of age. Hartlaub’s Gull is closely related to the Grey-headed Gull, with which it sometimes interbreeds.

Hartlaub’s Gull occurs only in Namibia and South Africa (Northern, Western and Eastern Cape), where they are considered to be common and increasing their population. With about half of the estimated 30,000 adults in the population occurring in and around the Cape Peninsula, Table Mountain National Park is a good place to look for Hartlaub’s Gull. The IUCN lists the species as being of least concern, despite noting threats to their breeding success rate.

Hartlaub’s Gull

Hartlaub’s Gulls

Hartlaub’s Gull

a Hartlaub’s Gull in the crystal clear water of the Langebaan Lagoon

Hartlaub’s Gull

Black Girdled Lizard

20 Replies

Cordylus niger

Black Girdled Lizards occur only on Table Mountain, the Cape Peninsula and around Saldanha Bay, where they inhabit rocky outcrops in the fynbos and shelter in small cracks and crevices. When threatened they will use their prickly tail to cover the rest of their body and inflate themselves so that it should be very difficult to extract them from their hiding place. Black Girdled Lizards grow to between 7 and 9cm in length and are usually seen alone, except when mating. They are diurnal and do not hibernate, although they are much less active in cold weather. Black Girdled Lizards feed primarily on insects. This is an ovoviviparous species, meaning that the female keeps the fertilized eggs inside her body and then gives birth to live young when the eggs hatch inside her. One to three young are born during autumn and must be immediately self-sufficient, as there is no parental care.

The IUCN classifies the Black Girdled Lizard as “Near Threatened” due to their extremely limited distribution and threats from development and the pet trade, despite an apparently numerous population.