Thursday, 24 March 2022
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6-6-2019 MOREMI CAMP, BOTSWANA - GREY GO AWAY BIRD (Corythaixoides concolor)
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The grey go-away-bird, also known as the grey lourie, grey loerie, or kwêvoël, is a distinctive bird of the southern Afrotropics. With a smoky-grey plumage, a long tail, and a wispy crest that can be raised in excitement, this bird is a sight to behold. The strong, decurved beak is black, contrasting with the pink gape and tongue, and the plumage varies slightly in shade across different parts of the body.
Adults of both sexes are similar in appearance, measuring 47–51 cm from bill to tail tip and weighing between 200 to 300 grams. The crest, reaching 6 to 7 cm in length, is a key feature for identification. The darkest grey can be found on the chin and throat, while the area around the eyes and belly is paler. The breast plumage may have a slight olive wash, reminiscent of its relative, the bare-faced go-away-bird.
The grey go-away-bird is found in arid to moist, open savanna woodlands, particularly where Acacia trees abound. It is also a common sight in miombo woodlands, along watercourses, dry riparian forests, and in Acacia woodlands on alluvium. These birds are also comfortable in human-altered landscapes such as farms, gardens, and parks.
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This species is native to a range of southern African countries, including Angola, the Democratic Republic of the Congo, Zambia, Tanzania, Malawi, Mozambique, Namibia, Botswana, Zimbabwe, South Africa, and Eswatini.
Despite their somewhat slow and laboured flight, grey go-away-birds are capable of covering considerable distances. They exhibit agility when navigating the treetops, running along limbs and hopping from branch to branch. They are sociable birds, often forming groups of up to 30 individuals that forage together in the canopy.
The grey go-away-bird is vocal, especially when disturbed, making loud and nasal "kweh" or "go-way" calls. The last syllable is typically a descending drawl, which is quite distinctive and memorable.
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Breeding involves the construction of a flimsy nest platform made from thin, sometimes thorny sticks, resembling a substantial dove's nest. The nest, often containing three white eggs, is placed at the center of an isolated tree. Both parents share in all aspects of chick rearing, from incubation to feeding the down-covered chicks with regurgitated food.
Due to its unique combination of color, appearance, and habits, the grey go-away-bird is unlikely to be confused with other bird species within its range.
The diet of the grey go-away-bird is predominantly fruit-based, including wild figs, berries, flowers, buds, leaves, termites, and snails. They feed on a variety of plant genera and also consume fruit from exotic invasive species, playing a role in seed dispersal.
The grey go-away-bird is classified as Least Concern by the IUCN, indicating that it is not currently at significant risk of decline in the wild.
6-6-2019 MOREMI CAMP, BOTSWANA - FORK TAILED DRONGO (Dicrurus adsimilis)
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The fork-tailed drongo, also known as the common drongo or African drongo, is a member of the Dicruridae family. It is a small bird with a distinctive fork-shaped tail, red-brownish eyes, and an entirely black plumage that exhibits a blue-green iridescence in certain lights. Both sexes are similar in appearance, with the underside of the bird being uniformly black, contrasting with the glossy black-blue upper body.
When identifying the fork-tailed drongo, look for its robust black beak, red eyes, and the deeply forked black tail. Juveniles can be distinguished by their dark brown tone, less pronounced tail fork, and lack of glossy shine on the lower body. During flight, the darker remiges of the D. a. adsimilis subspecies are particularly noticeable.
The fork-tailed drongo inhabits wooded habitats, including woodlands and savannas, and is tolerant of arid climates. It can be found at elevations up to 2200 meters.
This species is widespread across Africa south of the Sahara, with four recognized subspecies varying in range and physical characteristics. It was once thought to range into Asia, but the Asian species is now classified as the black drongo (D. macrocercus).
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The fork-tailed drongo is known for its aggressive and fearless nature, often attacking larger animals to protect its nest. It is also a skilled kleptoparasite, using deceptive mimicry of other birds' alarm calls to steal food. These birds are solitary hunters and spend a significant portion of their day feeding.
The vocalizations of the fork-tailed drongo are diverse, including sharp calls, whistles, and squeaks. They are known to mimic the calls of other bird species and even the sounds of other animals, such as cats and meerkats.
Breeding seasons vary by region, with the bird nesting close to wetlands, forests, and farms. The female lays one to four eggs, which hatch in 15 to 18 days. The species is monogamous and aggressively defends its nest from various predators.
The diet of the fork-tailed drongo is primarily insectivorous, including butterflies, termites, and grasshoppers. They also consume small fish, other birds, nectar, and plants when available. They are known to follow large mammals to catch insects disturbed by their movement.
6-6-2019 MOREMI CAMP, BOTSWANA - AFRICAN THREE BANDED PLOVER (Charadrius tricollaris ssp. tricollaris)
The three-banded plover, or three-banded sandplover (Charadrius tricollaris), is a small wader. This plover is resident and generally sedentary in much of East Africa, southern Africa and Madagascar. It occurs mainly on inland rivers, pools, lakes and pans, frequenting their exposed shores. This species is often seen as single individuals, but it will form small flocks. It hunts by sight for insects, worms and other invertebrates. Three-banded plovers have a sharp whistled weeet-weet call. Its larger and darker-plumaged sister species, Forbes's plover, replaces it in West Africa and in the moist tropics. The two species have largely allopatric breeding ranges. Both species present a distinctively elongated profile, due to their proportionally long tail and wings.
The Three-banded Plover, or Charadrius tricollaris, is a small wader, measuring 18 cm in length, with a distinctive elongated profile characterized by its long wings and very long tail. This bird is easily recognized in flight by its white front and the white side of the tail and rump. The adult's upperparts are a medium brown, while the underparts are predominantly white, featuring two black breast bands separated by a white band, which are the hallmark of this species. The head boasts a striking pattern with a black crown and white supercilia extending from the white forehead to meet at the back of the neck. The face is grey, transitioning to brown on the neck, and the orbital ring is a vivid orange-red. The bill is mostly black with a rosy red base.
When identifying the Three-banded Plover, look for the unique combination of the two black breast bands and the white band in between. The long wings and tail are also key features, setting it apart from most other small plovers. The thin white bar above the wings and the dark smudge over the primary coverts below are visible in flight. The Malagasy subspecies can be distinguished by a grey band between the bill and the white forehead, and grey sides of the head.
This species is typically found along inland rivers, pools, lakes, and pans, where it frequents exposed shores.
The Three-banded Plover is resident and generally sedentary across much of East Africa, southern Africa, and Madagascar.
Often seen as solitary individuals, the Three-banded Plover may also gather in small flocks. It hunts primarily by sight, searching for insects, worms, and other invertebrates.
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The call of the Three-banded Plover is a sharp, whistled "weeet-weet."
Breeding involves a simple nest, which is a bare scrape on shingle. Egg laying varies by region, occurring from March to June in the tropics, but predominantly from July to October in southern Africa.
The Forbes's Plover is a larger and darker-plumaged species that replaces the Three-banded Plover in West Africa and the moist tropics. The Forbes's Plover can be differentiated by its brown forehead and the absence of a white wingbar.
The diet consists of insects, worms, and other small invertebrates, which the Three-banded Plover hunts by sight.
The IUCN Red List classifies the Three-banded Plover as Least Concern, indicating that it is not currently at significant risk of widespread decline.
Wednesday, 23 March 2022
6-6-2019 MOREMI CAMP, BOTSWANA - GOLIATH HERON (Ardea goliath)
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The Goliath heron (Ardea goliath), also known as the giant heron, is a very large wading bird of the heron family, Ardeidae. It is found in sub-Saharan Africa, with smaller, declining numbers in Southwest and South Asia.
This is the world's largest living heron (the extinct Bennu heron was larger). The height of the goliath heron is 120–152 cm (3 ft 11 in – 5 ft 0 in), the wingspan is 185–230 cm (6 ft 1 in – 7 ft 7 in) and the weight is 4–5 kg (8.8–11.0 lb). The tarsus measures from 21.2 to 25.5 cm (8.3 to 10.0 in) and the wing chord averages around 60.7 cm (23.9 in) in length. The culmen measures from 18 to 20 cm (7.1 to 7.9 in), while the bill from the gape measures around 24 cm (9.4 in). In flight it has a slow and rather ponderous look and, unlike some other herons, its legs are not held horizontally. Male and female look similar, with an overall covering of slate gray and chestnut feathers. The head and its bushy crest, face, back and sides of the neck are chestnut. The chin, throat, foreneck and upper breast are white, with black streaks across the foreneck and upper breast. The lower breast and belly are buff with black streaks. The back and upper wings are slate-grey, with a chestnut shoulder patch at the bend of the wings when they're closed. The under-wing is pale chestnut.
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The upper mandible is black and the lores and orbital areas are yellow with a greenish tinge. The eyes are yellow while the legs and feet are black. Juveniles look similar to adults, but are paler. The only heron with somewhat similarly colored plumage, the widespread purple heron, is much smaller than the Goliath. Despite the shared plumage characteristics with the purple species, the closest extant relatives of the Goliath are considered to be the great-billed and the white-bellied herons of Southern Asia. Due to their large size, this species trio is sometimes referred to as the "giant herons"
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The Goliath heron has a distinct deep bark, often described as kowoork, audible from a distances of up to 2 km. A disturbance call (arrk), sharper and higher, can also occasionally be heard. A huh-huh is given during the crouched stage, while a krooo may be heard with the neck extended. Organ-like duetting has been reported at nest sites but has not been confirmed.
The Goliath heron is very aquatic, even by heron standards, rarely venturing far from a water source and preferring to fly along waterways rather than move over land. Important habitats can include lakes, swamps, mangrove wetlands, reefs with few cool water, sometimes river deltas. It typically is found in shallows, though can be observed near deep water over dense water vegetation. Goliath herons can even be found in small watering holes. They have ranged in elevation from sea level to 2,100 m (6,900 ft). They tend to prefer pristine wetlands and generally avoid areas where human disturbances are a regular occurrence.
6-6-2019 KHWAI CAMP, BOTSWANA - HELMETED GUINEA FOWL (Numida meleagris)
The helmeted guineafowl (Numida meleagris) is the best known of the guineafowl bird family, Numididae, and the only member of the genus Numida. It is native to Africa, mainly south of the Sahara, and has been widely introduced, as a domesticated species, into the West Indies, North America, Colombia, Brazil, Australia and Europe.
The helmeted guineafowl is a large, 53 to 58 cm (21 to 23 in) bird with a round body and small head. They weigh about 1.3 kg (2.9 lb). The body plumage is gray-black speckled with white. Like other guineafowl, this species has an unfeathered head, which in this species is decorated with a dull yellow or reddish bony knob, and bare skin with red, blue, or black hues. The wings are short and rounded, and the tail is likewise short. Various subspecies are proposed, differences in appearance being mostly a large variation in shape, size, and colour of the casque and facial wattles.
6-6-2019 KHWAI CAMP, BOTSWANA - BURCHELL'S STARLING (Lamprotornis australis)
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Burchell's Starling is a large, iridescent blue-green starling found in southern African savannas, known for its long, rounded tail and habit of foraging on the ground or scavenging for food near humans. It is a monogamous, sedentary species that breeds in tree cavities and feeds on invertebrates, fruit, and berries. Burchell's Starling's name honors the English naturalist William John Burchell.
Appearance and identification Color: Large, with an iridescent blue-green to purple glossy plumage.Distinguishing features: Has a long, rounded tail and a blue-green forehead and crown.Size: Approximately \(30\) cm long, weighing about \(74\)–\(138\) g.
Habitat and range Habitat: Dry and mesic woodlands and savannas in southern Africa, particularly near large thorn trees.Range: Found in countries including Namibia, Botswana, South Africa, Zimbabwe, Mozambique, and Zambia. Behavior and diet Foraging: Often forages on the ground, walking with long strides, and also perches in trees.
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Diet: Omnivorous, eating insects, other invertebrates, fruit, berries, and sometimes scavenging for scraps near human settlements like picnic sites.Social behavior: Typically seen alone, in pairs, or small flocks.
Breeding Nesting: Nests are built in tree cavities and lined with materials like grass, leaves, feathers, and snake skins.Eggs: Lays \(2\)–\(4\) eggs, with incubation by the female for about \(14\) days.Parental care: Both parents feed the chicks after they hatch, and the young leave the nest around three weeks of age.
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6-6-2019 KHWAI CAMP, BOTSWANA - DOUBLE BANDED SANDGROUSE (Pterocles bicinctus)
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The double-banded sandgrouse, Pterocles bicinctus, presents itself as a moderately-sized bird with a quail-like appearance. Its plump body is adorned with light brown plumage, featuring darker mottling and rows of whitish specks. The species is characterized by a small, pigeon-like head, elongated wings, and a lengthy tail.
Males can be readily identified by a striking black-and-white band across the forehead and a chestnut throat bordered by another black-and-white band. Both sexes boast an area of bare, yellow skin encircling the eye, while the male's beak is tinged with orange. Females are generally smaller and exhibit a more subdued brown coloration. Juveniles resemble the female in appearance.
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These birds show a preference for habitats with short, trampled grass beside roads and tracks, gravel patches, tussocky grasslands, and recently burned scrub areas with emerging green shoots. They are also found beneath scattered Terminalia sericea and Burkea africana trees and within scrubby mopane woodlands.
The double-banded sandgrouse is native to southern Africa, with sightings in Angola, Botswana, Malawi, Mozambique, Namibia, South Africa, Zambia, and Zimbabwe.
Typically observed in small groups, these monogamous birds often form pairs or family units. They forage in dry areas during the morning and congregate near water sources in the afternoon and after dark. Their presence fluctuates seasonally, with absences noted during wetter periods.
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The diet consists largely of seeds including acacia, red pea (Requenia sphaerosperma), Tephrosia, Cyperus, blackjack (Bidens bidentata) and hairy thorn-apple (Datura innoxia).
Breeding takes place between February and September, peaking earlier in the northern part of the range than the south. The male has a courtship display in which he walks round in circles with his beak near the ground and his tail raised high. The nest is a shallow depression in the soil, lined with a few bits of dried vegetation, often hidden between grass tufts or under a bush. Two or three eggs are laid and both sexes take it in turn to incubate them. They hatch in about 24 days. The chicks are precocial, being active with eyes open and clothed in fluffy down as soon as they are hatched. In about a month they have grown adult-type feathers and can fly.
The double-banded sandgrouse is most often seen in groups of one to five birds, often two or four. The birds are monogamous and these are probably pairs or family units. In the morning they tend to feed in dry areas well away from water but in the afternoon they are most often seen near watering places. They visit water again, often in larger groups of up to 10, after dark. In Borakalalo Game Reserve, South Africa they were observed at dry times of year, in February and March and again between July and September. They were absent from the park during the wet summer period, from September to January.
Tuesday, 22 March 2022
5-6-2019 MOREMI CAMP, BOTSWANA - MAINLAND AFRICAN OPENBILL (Anastomus lamelligerus ssp. lamelligerus)
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The African Openbill (Anastomus lamelligerus ) is a species of stork from the family Ciconiidae. It is widely distributed in Sub-Saharan Africa and western regions of Madagascar. This species is considered common to locally abundant across its range, although it has a patchy distribution. Some experts consider there to be two sub-species, A. l. lamelligerus distributed on the main continent and A. l. madagascariensis living on the island of Madagascar. Scientists make the difference between the two sub-species due to the more pronounced longitudinal ridges on the bills of adult A. l. madagascariensis.The Asian Openbill (Anastomus oscitans ) distributed in Asia is the African Openbill’s closest relative. The two species share the same notably large bill of a peculiar shape that gives them their name.
The African Openbill is a stork measuring 80-94 cm and weighing 1-1.3 kg. The species does not exhibit any major sexual dimorphism, although the males are slightly larger than the females and have a longer and heavier bill. The adult bill is betwen 135-196 mm in length, brownish in color and has a gap between the upper aend lower mandible. This gap is non-existent in juvenile birds and develops as the bird ages. It is because the two mandibles of the beak only meet at the tip and not in the middle that this stork genus received the name of “openbill”.
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The adult plumage is overall black with iridescent green feathers on their backs, coverts and abdomens. The juvenile plumage is usually less vibrant and browner in color with the feathers of the underparts having pale tips. The legs and feet are black. The eyes are grey with grey lores and no distinct coloration of the eye-ring.
These storks are smaller in stature than most of the other species in their family which allows them to be much more agile in the air. This agility can be observed during their descents from high altitudes as they often perform steep dives and remarkable acrobatic manoeuvres. During their migration flights, the African openbill storks will use sustained flapping flight with an average wing flap rate of 200-210 flaps/minute. They will also often soar on the thermals when commuting to and from distant feeding areas. This allows them to travel long distances to obtain food without expending too much energy. In flight, these birds have their necks and head extended and their long, broad wings are spread out and perfect for soaring and gliding on the air currents.
5-6-2019 MOREMI CAMP, BOTSWANA - SAVANNAH ELEPHANT (Loxodonta Africana)
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The African bush elephant (Loxodonta africana), also known as the African savanna elephant, is a species of elephant native to sub-Saharan Africa. It is one of three extant elephant species and, along with the African forest elephant, one of two extant species of African elephant. It is the largest living terrestrial animal, with fully grown bulls reaching an average shoulder height of 3.04–3.36 metres (10.0–11.0 ft) and a body mass of 5.2–6.9 tonnes (5.7–7.6 short tons); the largest recorded specimen had a shoulder height of 3.96 metres (13.0 ft) and an estimated body mass of 10.4 tonnes (11.5 short tons). The African bush elephant is characterised by its long prehensile trunk with two finger-like processes; a convex back; large ears which help reduce body heat; and sturdy tusks that are noticeably curved. The skin is grey with scanty hairs, and bending cracks which support thermoregulation by retaining water.
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The African bush elephant inhabits a variety of habitats such as forests, grasslands, woodlands, wetlands and agricultural land. It is a mixed herbivore feeding mostly on grasses, creepers, herbs, leaves, and bark. The average adult consumes about 150 kg (330 lb) of vegetation and 230 L (51 imp gal; 61 US gal) of water each day. A social animal, the African bush elephant often travels in herds composed of cows and their offspring. Adult bulls usually live alone or in small bachelor groups. During the mating season, males go through a process called musth, a period of high testosterone levels and heightened aggression. For females, the menstrual cycle lasts three to four months, and gestation around 22 months, the longest of any mammal.
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Since 2021, the African bush elephant has been listed as Endangered on the IUCN Red List. It is threatened foremost by habitat destruction, and in parts of its range also by poaching for meat and ivory. Between 2003 and 2015, the illegal killing of 14,606 African bush elephants was reported by rangers across 29 range countries. Chad is a major transit country for smuggling of ivory in West Africa. This trend was curtailed by raising penalties for poaching and improving law enforcement. Poaching of the elephant has dated back to the 1970s and 80s, which were considered the largest killings in history. In human culture, elephants have been extensively featured in literature, folklore and media, and are most valued for their large tusks in many places.
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African savanna elephants are the largest species of elephant and the biggest terrestrial animal on Earth. They are easily distinguished by their very large ears—which allow them to radiate excess heat—and front legs which are noticeably longer than the hind legs.
African savanna elephants are found in 23 countries and live in a variety of habitats, from open and wooded savannas to even some deserts and forests. The largest populations are in Southern and Eastern African countries, including Botswana, Zimbabwe, Tanzania, Kenya, Namibia, Zambia, and South Africa.
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As a result of their visibility within the open areas where they live, African savanna elephants are well studied, and populations are easily estimated. Each family unit usually consists of around 10 females and their calves, and the bulls associate with these herds only during mating. Several family units often join together to form a “clan” consisting of up to several hundred members led by a female matriarch. Due to their habitat, savanna elephants are often found grazing on grasses, but they also browse on a wide variety of plants and fruits. This selection varies depending on the time of year; during the rainy seaso,n the elephant will feed more on grass than during the dry season.
Monday, 21 March 2022
Sunday, 20 March 2022
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