Saturday, 29 June 2019
20-5-2019 BUMI HILLS, ZIMBABWE - AFRICAN SACRED IBIS (Threskiornis aethiopicus ssp. aethiopicus)
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The African sacred ibis (Threskiornis aethiopicus) is a striking wading bird from the family Threskiornithidae. It is characterized by its all-white plumage, save for the dark plumes on its rump. The adult bird measures approximately 68 cm (27 in) in length, with a wingspan ranging from 112 to 124 cm (44 to 49 in), and weighs between 1.35 to 1.5 kg (3.0 to 3.3 lb). Males are generally slightly larger than females. The species is distinguished by its bald head and neck, thick curved bill, and black legs. In flight, the white wings reveal a contrasting black rear border. The eyes are brown, encircled by a dark red orbital ring.
When identifying the African sacred ibis, look for the combination of its white body, black head, neck, and bill. Juveniles can be recognized by their less pristine white plumage, smaller bill, and some feathering on the neck. The presence of greenish-brown scapulars and more black on the primary coverts also helps to distinguish younger birds.
This ibis favors marshy wetlands and mud flats, both inland and along the coast. It is often found nesting in trees near water and is known to frequent very shallow wetlands, wet pastures with soft soil, cultivation areas, and rubbish dumps.
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The African sacred ibis is indigenous to Sub-Saharan Africa and parts of the Middle East, including small regions of Iraq, Iran, and Kuwait. The species has migratory populations that move with the rains, with some South African birds traveling as far north as Zambia, while those north of the equator migrate in the opposite direction.
The species has been introduced to various parts of Europe, including Italy, France, and the Netherlands, as well as to Florida, Taiwan, and the United Arab Emirates. In Europe, it is considered an invasive species.
The African sacred ibis is a social bird, often seen in flocks. It is predominantly silent, but can occasionally emit puppy-like yelping sounds. The species is known for its predatory feeding habits, which occur mainly during the day.
This species is usually silent, but may occasionally make puppy-like yelping noises.
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Breeding occurs once a year during the wet season, with the season spanning from March to August in Africa and from April to May in Iraq. The ibis builds a stick nest, often in a baobab tree, and nests in colonies alongside other large wading birds. Females lay one to five eggs, which are incubated by both parents for 21 to 29 days. Chicks fledge after 35 to 40 days and reach sexual maturity between one to five years after hatching.
The diet of the African sacred ibis consists mainly of insects, worms, crustaceans, molluscs, fish, frogs, reptiles, small mammals, and carrion. It uses its long beak to probe the soil for invertebrates and may also feed on seeds.
The IUCN classifies the African sacred ibis as "Least Concern," with an estimated global population of 200,000–450,000 individuals. However, the population appears to be decreasing. The species is covered by the Agreement on the Conservation of African-Eurasian Migratory Waterbirds (AEWA).
The African sacred ibis was venerated in Ancient Egyptian religion, linked to the god Thoth. It was often mummified as a votive offering. The species was believed to fend off winged serpents and was associated with wisdom and knowledge.
20-5-2019 BUMI HILLS, ZIMBABWE - VIOLET BACKED STARLING (MALE) (Cinnyricinclus leucogaster)
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The violet-backed starling (Cinnyricinclus leucogaster), also known as the plum-coloured starling or amethyst starling, or Ndambamukula in the Venda language, is a relatively small species (17 cm) of starling in the family Sturnidae. It is the only member of the genus Cinnyricinclus. This strongly sexually dimorphic species is found widely in the woodlands and savannah forest edges of mainland sub-Saharan Africa. It is rarely seen on the ground, but instead found in trees and other locations away from the ground.
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The violet-backed starling is a sexually dimorphic species with adults reaching a length of about 18 cm (7 in). The male has an iridescent violet head and back and pure white underparts. The female has a thrush-like appearance with brown, boldly-streaked upper parts and white, heavily-streaked underparts. Both sexes have yellow irises and black bills and legs.
The violet-backed starling is a common bird in Sub-Saharan Africa, occurring in most locations with the exception of the dense rainforest of the Congo Basin, and the more arid parts of southwestern Africa. It is found in open woodland, gallery forests, forest verges and clearings. In the Chyulu Hills of Kenya, it occurs at altitudes up to 2,100 m (6,900 ft).
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The diet of the violet-backed starling includes fruits, seeds and arthropods. It sometimes hawks for insects in a manner similar to flycatchers. It largely feeds in the canopy, seldom foraging on the ground. The nest is usually located in a crevice in a tree within a few metres of the ground. Nesting material includes green leaves and dung. The female will incubate the clutch of two to four eggs, which are pale blue with reddish/brown spots, for 12–14 days. The male will help feed chicks until they fledge after about 21 days.
20-5-2019 BUMI HILLS, ZIMBABWE - LITTLE BEE-EATER (Merops pasillas)
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The little bee-eater (Merops pusillus) is a bird species in the bee-eater family, Meropidae. They are found in Sub-Saharan Africa. They should not be confused with the little green bee-eater (Merops orientalis). Migration is limited to seasonal movements depending on rainfall patterns.
Members of this species, like other bee-eaters, are rich and brightly coloured slender birds. They have green upper parts, yellow throats, black gorgets, and rich brown upper breasts fading to buffish ochre on the belly. Their wings are green and brown. Their beaks and legs are black. They reach a length of 15–17 cm, which makes them the smallest African bee-eater. Sexes are alike. Often silent, their call is a soft "seep".
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These are abundant and tame birds, familiar throughout their range. There have been estimated to be between 60 and 80 million little bee-eaters. They breed in open country with bushes, preferably near water. Just as the name suggests, bee-eaters predominantly eat insects, especially bees, wasps and hornets, who are caught in the air by sorties from an open perch. This species often hunts from low perches, maybe only a metre or less high. Before eating their meal, a bee-eater removes the stinger by repeatedly hitting the insect on a hard surface.
Unlike most bee-eaters, these are solitary nesters, making a tunnel in sandy banks, or sometimes in the entrance to an Aardvark den. They lay 4 to 6 spherical white eggs. Both the male and the female take care of the eggs. These birds roost communally, lined up on a tree branch.
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This is an abundant and tame bird, familiar throughout its range of Sub-Sahara Africa. There have been estimated to be between 60-80 million little bee-eaters. It breeds in open country with bushes, preferably near water. Just as the name suggests, bee-eaters predominantly eat insects, especially bees, wasps and hornets, which are caught in the air by sorties from an open perch.
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This is the world’s smallest bee-eater at a length of 16 cm. The little bee-eater is bright green on top with orange or buff underparts, including the outer flight feathers. A black gorget (collar) separates the orange or buff breast from a yellow throat.
The tail is orange or buff, with a green center. Like all bee-eaters, the little bee-eater has a black eye stripe, with turquoise spot above the eye.
The little bee-eater hunts flying insects, whilst in flight. Once they catch an insect, they will return to a perch, to kill the insect and remove its sting, by repeatedly hitting the insect against the branch. The little bee-eater prefers insects such as bees and wasps.
A tunnel is dug by both the male and female little bee-eater, normally in a vertical sandy bank or an aardvark hole. This tunnel can be as deep as 130 cm. They do not line the nest cavity and the 2 to 6 eggs are laid directly on the sand. The eggs are incubated by both sexes for around 20 days.
This bee-eater is parasitized by the Greater Honeyguide (Indicator indicator).
The little bee-eater will roost communally at night, with the birds huddled together on a single perch. They often use the same perch repeatedly when hunting, taking short flights to catch their prey then returning back to the same perch.
The little bee-eater is found in a woodland environment, near water. This is a common resident in the north-eastern areas of South Africa.
Friday, 28 June 2019
19-5-2019 BUMI HILLS, ZIMBABWE - KITTLITZ'S PLOVER (Charadrius pecuarius)
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The Kittlitz's plover, named after Heinrich von Kittlitz, is a diminutive shorebird, tipping the scales at a modest 35-40 grams. This species is adorned with a black bill, dark brown eyes encased in black eyelids, and legs that may shift in hue from black to greenish or grey. During the breeding season, the male is distinguished by a white forehead and a series of bands on the forecrown, while the female's plumage is similar but with a narrower black band. The non-breeding plumage sees little change, save for a paler underbelly and a browner eye stripe.
Adults boast a wing length of 100–110 mm, a bill length of 15–23 mm, and a tarsus length of 26–33 mm. Juveniles resemble adults but lack the black facial markings and have brown upperparts with a buff-colored hindneck collar.
Kittlitz's plover is partial to open habitats near water, such as lakes, lagoons, rivers, tidal mudflats, and inland saltmarshes. It breeds in areas with short vegetation and is strictly terrestrial in its activities.
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This species is widespread across sub-Saharan Africa, Madagascar, and the Nile Delta. It is common in South Africa but less so in arid regions like Botswana and Namibia. In Madagascar, it is both a breeding resident and intra-island migrant.
Kittlitz's plover is sociable outside of the breeding season, forming small flocks. It is known for its flexible breeding system and shorter pair bonds, often being polygamous. The species is territorial during breeding, with both parents defending their ground vigorously.
A repertoire of calls includes 'pipip', 'towhit', 'tit-peep', and others, used variably as alarm calls, during courtship, or when feigning injury. The young emit a 'peep' to communicate.
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Breeding occurs throughout the year with varying peak seasons. The nest is a simple ground scrape, lined with natural materials, and the clutch typically consists of 1-3 eggs. Both parents share incubation duties, which last 21–27 days.
The Madagascar plover (Charadrius thoracicus) is a distinct species that does not interbreed with Kittlitz's plover.
Kittlitz's plover forages in a run-stop-search manner, feeding on insects, spiders, small crustaceans, and molluscs. It can be aggressive towards other birds when foraging, especially in the winter months before breeding.
The IUCN lists Kittlitz's plover as Least Concern. It is abundant in Africa and locally common in Madagascar, with a wide range. Threats include habitat loss due to wetland degradation and diseases such as avian malaria and botulism.
20-5-2019 BUMI HILLS, ZIMBABWE - KITTLITZ'S PLOVER (JUVENILE) (Charadrius pecuarius)
The Kittlitz's plover, named after Heinrich von Kittlitz, is a diminutive shorebird, tipping the scales at a modest 35-40 grams. This species is adorned with a black bill, dark brown eyes encased in black eyelids, and legs that may shift in hue from black to greenish or grey. During the breeding season, the male is distinguished by a white forehead and a series of bands on the forecrown, while the female's plumage is similar but with a narrower black band. The non-breeding plumage sees little change, save for a paler underbelly and a browner eye stripe.
Adults boast a wing length of 100–110 mm, a bill length of 15–23 mm, and a tarsus length of 26–33 mm. Juveniles resemble adults but lack the black facial markings and have brown upperparts with a buff-colored hindneck collar.
20-5-2019 BUMI HILLS, ZIMBABWE - GUINEAFOWL BUTTERFLY (Hamanumida daedalus)
The genus Hamanumida comprises of a single species – daedalus, which is popularly known as the Guineafowl due to its colour and pattern which resembles that of the guineafowl bird.
Hamanumida daedalus is widespread across Africa including Madagascar. It also occurs in the Arab states.
This is a grassland / savannah species found at altitudes between sea level and about 800m. It is associated mainly with dry, rocky grassland where there are scattered bushes and trees, but also rapidly colonises abandoned agricultural land.
The primary larval foodplant is Combretum, but Terminalia and Tectona (teak) are also used.
The butterflies are normally seen singly or in two’s and three’s. Males will mud-puddle at the edges of fords and small streams, but both sexes are more commonly seen aggregating at the top of hills where courtship and copulation take place. They fly very low over the ground, and frequently settle to bask on bare ground or on rocks or boulders. At all times they remain very alert, taking flight at the slightest disturbance.
Hamanumida daedalus, the guineafowl butterfly, is a butterfly of the family Nymphalidae and only member of the genus Hamanumida.
Range
It is found in the Afrotropical realm (Natal, Eswatini, Transvaal, Mozambique, Zimbabwe, Botswana, tropical Africa (dry lowland areas) and southwest Arabia).
Description
The wingspan is 55–65 mm for males and 60–78 mm for females. Adults are on wing year-round, with peaks in midwinter and summer.
Food plants
The larvae feed on Combretum and Terminalia species.
20-5-2019 BUMI HILLS, ZIMBABWE - CRESTED FRANCOLIN (Dendroperdix sephaena)
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The crested francolin, known scientifically as Ortygornis sephaena, is a distinguished member of the Phasianidae family. This bird is adorned with a notable crest, which gives it its common name.
When attempting to identify the crested francolin, look for its characteristic crest and the overall brown plumage with intricate patterns that provide excellent camouflage in its natural habitat.
The crested francolin is a bird of southern Africa, where it frequents a variety of habitats, adapting well to its surroundings.
This species is widely distributed across southern Africa, indicating a healthy and stable population in this region.
20-5-2019 BUMI HILLS, ZIMBABWE - SOUTHERN BUSHBUCK (MALE) (Tragelaphus scriptus)
The Cape bushbuck (Tragelaphus sylvaticus), also known as imbabala, is a common, medium-sized bushland-dwelling, and a widespread species of antelope in sub-Saharan Africa. It is found in a wide range of habitats, such as rain forests, montane forests, forest-savanna mosaic, savanna, bushveld, and woodland. It stands around 90 cm (35 in) at the shoulder and weigh from 45 to 80 kg (99 to 176 lb). They are generally solitary, territorial browsers.
Cape bushbucks stand around 90 cm (35 in) at the shoulder and weigh from 60 to 80 kg (130 to 180 lb) in males and 25 to 60 kg (55 to 132 lb)in females. They have a light brown coat, with up to seven white stripes and white splotches on the sides. The white patches are usually geometrically shaped and on the most mobile parts of their bodies, such as the ears, chin, tail, legs, and necks. The muzzles are also white. Horns, found only on the males, can reach over half a metre and have a single twist. At 10 months old, young males sprout horns that are particularly twisted and at maturity form the first loop of a spiral.
The Cape bushbuck has on average less striping and more uniform colouration than populations in West Africa. Cape bushbuck occur from the Cape in South Africa to Angola and Zambia and up the eastern part of Africa to Ethiopia and Somalia, according to one interpretation. Other interpretations restrict the taxon to Southern Africa sensu stricto or consider them sensu lato to occur in the above range except eastern Sudan, Ethiopia, and Somalia. The first Latin name that can be attributed to the Cape bushbuck was Antilope sylvatica after Sparrman (1780), described from the Cape Colony.
Bushbuck browse on trees, shrubs, and forbs; they rarely if ever eat grasses. Studies of free-ranging bushbuck in various parts of southeastern Africa using DNA metabarcoding show that bushbuck frequently forage on acacias (Senegalia, Vachellia) and other legumes, along with mallows (Grewia, Hibiscus), bushwillows (Combretum), buckthorns (Berchemia, Ziziphus) and various other plants. Bushbuck are active throughout the day, but tend to be nocturnal near human habitations.
Bushbuck are solitary animals, but are not aggressively antisocial, and individuals sometimes forage in close proximity. Bushbuck live within a "home" area, which is usually around 50,000 m2 (540,000 sq ft) on the savannah and much larger in the forest, that they will not normally leave. These areas usually overlap other bushbuck home areas.
Some game farmers in southern Africa discovered that the bushbuck may compete with the closely related, larger nyala when they tried to introduce the two species to the same area. However, the two species are often found in close proximity in natural communities (e.g., in Gorongosa National Park, Mozambique).
21-5-2019 BUMI HILLS, ZIMBABWE - SOUTHERN BUSHBUCK (FEMALE) (Tragelaphus scriptus)
The bushbuck (Tragelaphus scriptus ) is a common and a widespread species of antelope in Sub-Saharan Africa. Bushbuck are found in a wide range of habitats, such as rain forests, montane forests, forest-savanna mosaic, savanna, bushveld and woodland. Bushbuck stand about 90 centimetres (35 in) at the shoulder and weigh from 45 to 80 kilograms (99 to 176 lb). They are generally solitary, territorial browsers.
The bushbuck is a widespread species of antelope in Sub-Saharan Africa. These animals have a light brown coat, with up to seven white stripes and white splotches on the sides. The white patches are usually geometrically shaped and on the most mobile parts of their body such as the ears, chin, tail, legs, and neck.
The muzzle is also white and horns are found only on the males.Cape bushbucks stand around 90 cm (35 in) at the shoulder and weigh from 60 to 80 kg (130 to 180 lb) in males and 25 to 60 kg (55 to 132 lb)in females. They have a light brown coat, with up to seven white stripes and white splotches on the sides. The white patches are usually geometrically shaped and on the most mobile parts of their bodies, such as the ears, chin, tail, legs, and necks. The muzzles are also white. Horns, found only on the males, can reach over half a metre and have a single twist. At 10 months old, young males sprout horns that are particularly twisted and at maturity form the first loop of a spiral.
28-6-2019 MARCHUQUERA, VALENCIA - EURASIAN TREE SPARROW (MALE) (Passer montanus)
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The Eurasian tree sparrow (Passer montanus) is a charming passerine bird, easily recognized by its rich chestnut crown and nape, and a distinctive black patch on each pure white cheek. Both sexes are similarly adorned, and the juveniles mirror the adults, albeit with slightly duller hues. This species is somewhat smaller than the closely related house sparrow, and its size is approximately 12.5–14 cm in length, with a wingspan of about 21 cm.
To identify the Eurasian tree sparrow, look for the kidney-shaped black ear patch on each white cheek, the black chin and throat, and the light brown upperparts streaked with black. The wings bear two narrow white bars, and the legs are pale brown. The bill is lead-blue in summer, darkening almost to black in winter. Unlike the house sparrow, there is no sexual dimorphism in plumage, making both males and females equally easy to identify.
In Europe, the Eurasian tree sparrow is typically found in lightly wooded open countryside, while in eastern Asia, it is more common in urban settings. It prefers nesting in natural cavities, holes in buildings, or even the abandoned nests of other large birds. This species is not typically found in mountainous regions, despite its scientific name suggesting otherwise.
26-6-2019 BONAIRE, VALENCIA - EURASIAN MAGPIE (Pica pica)
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The Eurasian magpie, or common magpie (Pica pica), is a striking bird that graces the northern reaches of the Eurasian continent. It is a member of the crow family, known as corvids, and is part of the "monochrome" magpie group within the Holarctic radiation. The bird is easily recognized by its black and white plumage and long, iridescent tail.
Adult Eurasian magpies measure 44–46 cm in length, with over half of this being the tail. They have a wingspan of 52–62 cm. The head, neck, and breast are glossy black with a metallic sheen of green and violet, while the belly and scapulars are pure white. The wings are black with green or purple gloss, and the primaries have white inner webs. The tail is black with green and reddish-purple gloss. Both sexes have similar plumage, though females are slightly smaller.
The Eurasian magpie favors open countryside with scattered trees, avoiding dense forests and treeless areas. It adapts well to suburban environments, including parks and gardens, and can be found in city centers.
This magpie's range spans temperate Eurasia from the western edges of Portugal and Spain to the eastern limits of the Kamchatka Peninsula.
The Eurasian magpie is known for its intelligence, comparable to that of great apes. It is monogamous, with pairs often remaining together across seasons. They are sedentary, though northern populations may move south in severe weather.
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The magpie's call is a distinctive "chac-chac" or a repetitive "chac-chac-chac-chac." Young birds emit a similar call and a high-pitched "Uik Uik," which can resemble a small dog's bark.
Magpies typically breed after their first year. They build large, domed nests in tall trees, laying clutches of five to six pale blue-green eggs, which are incubated for 21–22 days. The chicks are altricial and fledge at around 27 days, with parental care continuing for several weeks.
The Eurasian magpie can be confused with the North American black-billed magpie (Pica hudsonia), though they are now considered separate species.
Omnivorous, the Eurasian magpie's diet includes young birds, eggs, small mammals, insects, carrion, acorns, grain, and other plant matter.
With an extensive range and stable population trends in Europe, the Eurasian magpie is classified by the IUCN as Least Concern. Estimates suggest a total population of 46 to 228 million individuals globally.
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