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Saturday, 13 January 2024

12-1-2024 CREU DE LONGA, ALBUFERA - EURASIAN KESTREL (Falco tinnunculus)

The common kestrel (Falco tinnunculus) is a bird of prey species belonging to the kestrel group of the falcon family Falconidae. It is also known as the European kestrel, Eurasian kestrel, or Old World kestrel. In the United Kingdom, where no other kestrel species commonly occurs, it is generally just called "kestrel".

This species occurs over a large range. It is widespread in Europe, Asia, and Africa, as well as occasionally reaching the east coast of North America. It has colonized a few oceanic islands, but vagrant individuals are generally rare; in the whole of Micronesia for example, the species was only recorded twice each on Guam and Saipan in the Marianas.

Common kestrels measure 32–39 cm (12+1⁄2–15+1⁄2 in) from head to tail, with a wingspan of 65–82 cm (25+1⁄2–32+1⁄2 in). Females are noticeably larger, with the adult male weighing 136–252 g (4+3⁄4–8+7⁄8 oz), around 155 g (5+1⁄2 oz) on average; the adult female weighs 154–314 g (5+3⁄8–11+1⁄8 oz), around 184 g (6+1⁄2 oz) on average. They are thus small compared with other birds of prey, but larger than most songbirds. Like the other Falco species, they have long wings as well as a distinctive long tail.

Their plumage is mainly light chestnut brown with blackish spots on the upperside and buff with narrow blackish streaks on the underside; the remiges are also blackish. Unlike most raptors, they display sexual colour dimorphism with the male having fewer black spots and streaks, as well as a blue-grey cap and tail. The tail is brown with black bars in females, and has a black tip with a narrow white rim in both sexes. All common kestrels have a prominent black malar stripe like their closest relatives.

The cere, feet, and a narrow ring around the eye are bright yellow; the toenails, bill and iris are dark. Juveniles look like adult females, but the underside streaks are wider; the yellow of their bare parts is paler. Hatchlings are covered in white down feathers, changing to a buff-grey second down coat before they grow their first true plumage.

12-1-2024 MASSANASSA, ALBUFERA - WHITE WAGTAIL (Motacilla alba)

The white wagtail (Motacilla alba) is a small passerine bird in the family Motacillidae, which also includes pipits and longclaws. The species breeds in much of Europe and the Asian Palearctic and parts of North Africa. It has a toehold in Alaska as a scarce breeder. It is resident in the mildest parts of its range, but otherwise migrates to Africa. In Ireland and Great Britain, the darker subspecies, the pied wagtail or water wagtail (M. a. yarrellii) predominates; this is also called in Ireland willie wagtail, not to be confused with the Australian species Rhipidura leucophrys which bears the same common name. In total, there are between 9 and 11 subspecies of M. alba.

The white wagtail is an insectivorous bird of open country, often near habitation and water. It prefers bare areas for feeding, where it can see and pursue its prey. In urban areas it has adapted to foraging on paved areas such as car parks. It nests in crevices in stone walls and similar natural and human-made structures.

It is the national bird of Latvia and has featured on the stamps of several countries. Though it is 'of least concern', there are several threats against it, like being kept as pets and being used as food.


The white wagtail is a slender bird, 16.5 to 19 cm (6.5 to 7.5 in) in length (East Asian subspecies are longer, measuring up to 21 cm (8.3 in)), with the characteristic long, constantly wagging tail of its genus. Its average weight is 25 g (0.88 oz) and the maximum lifespan in the wild is about 12 years.

There are a number of other subspecies, some of which may have arisen because of partial geographical isolation, such as the resident British and Irish form, the pied wagtail M. a. yarrellii, which now also breeds in adjacent areas of the neighbouring European mainland. The pied wagtail, named for naturalist William Yarrell, exchanges the grey colour of the nominate form with black (or very dark grey in females), but is otherwise identical in its behaviour. Other subspecies, the validity of some of which is questionable, differ in the colour of the wings, back, and head, or other features. Some races show sexual dimorphism during the breeding season. As many as six subspecies may be present in the wintering ground in India or Southeast Asia and here they can be difficult to distinguish. Phylogenetic studies using mtDNA suggest that some morphological features have evolved more than once, including the back and chin colour. Breeding M. a. yarrellii look much like the nominate race except for the black back, and M. a. alboides of the Himalayas differs from the Central Asian M. a. personata only by its black back. M. a. personata has been recorded breeding in the Siddar Valley of Kashmir of the Western Himalayas. It has also been noted that both back and chin change colour during the pre-basic moult; all black-throated subspecies develop white chins and throats in winter and some black-backed birds are grey-backed in winter.

The call of the white wagtail is a sharp chisick, slightly softer than the version given by the pied wagtail. The song is more regular in white than pied, but with little territorial significance, since the male uses a series of contact calls to attract the female.


Worldwide distribution of the white wagtail. Yellow denotes summer range, green year round range, blue winter range.
This species breeds throughout Eurasia up to latitudes 75°N, only being absent in the Arctic from areas where the July isotherm is less than 4 °C. It also breeds in the mountains of Morocco and western Alaska. It occupies a wide range of habitats, but is absent from deserts. White wagtails are residents in the milder parts of its range such as western Europe and the Mediterranean, but migratory in much of the rest of its range. Northern European breeders winter around the Mediterranean and in tropical and subtropical Africa, and Asiatic birds move to the Middle East, India, and Southeast Asia. Birds from the North American population also winter in tropical Asia.


The most conspicuous habit of this species is a near-constant tail wagging, a trait that has given the species, and indeed the genus, its common name. In spite of the ubiquity of this behaviour, the reasons for it are poorly understood. It has been suggested that it may flush prey, or signal submissiveness to other wagtails. A study in 2004 has suggested instead that it is a signal of vigilance to potential predators.

The exact composition of the diet of white wagtails varies by location, but terrestrial and aquatic insects and other small invertebrates form the major part of the diet. These range from beetles, dragonflies, small snails, spiders, worms, crustaceans, to maggots found in carcasses and, most importantly, flies. Small fish fry have also been recorded in the diet. The white wagtail is somewhat unusual in the parts of its range where it is non-migratory as it is an insectivorous bird that continues to feed on insects during the winter (most other insectivorous birds in temperate climates migrate or switch to more vegetable matter).

Friday, 12 January 2024

12-1-2024 CREU DE LONGA, ALBUFERA - GREAT EGRET (Ardea alba)

The great egret (Ardea alba), also known as the common egret, large egret, or (in the Old World) great white egret or great white heron is a large, widely distributed egret. The four subspecies are found in Asia, Africa, the Americas, and southern Europe. Recently it is also spreading to more northern areas of Europe. Distributed across most of the tropical and warmer temperate regions of the world, it builds tree nests in colonies close to water.

The great egret is generally a very successful species with a large and expanding range, occurring worldwide in temperate and tropical habitats. It is ubiquitous across the Sun Belt of the United States and in the Neotropics.


The great egret forages in shallow water or in drier habitats, feeding mainly on fish, frogs, other amphibians, small mammals (such as mice), and occasionally small reptiles (such as snakes), crustaceans (such as crayfish) and insects (such as crickets and grasshoppers). This species normally impales its prey with its long, sharp bill by standing still and allowing the prey to come within the striking distance of its bill, which it uses as a spear. It often waits motionless for prey or slowly stalks its victim. 

12-1-2024 ALBUFERA, VALENCIA - EUROPEAN STONECHAT (MALE) (Saxicola rubicola)


The European stonechat (Saxicola rubicola) is a small passerine bird that was formerly classed as a subspecies of the common stonechat. Long considered a member of the thrush family, Turdidae, genetic evidence has placed it and its relatives in the Old World flycatcher family, Muscicapidae.

European stonechats breed in heathland, coastal dunes and rough grassland with scattered small shrubs and bramble, open gorse, tussocks or heather. They are short-distance migrants or non-migratory, with part of the population (particularly from northeastern parts of the range, where winters are colder) moving south to winter further south in Europe and more widely in north Africa.

European stonechats first breed when they are one year old. They are monogamous during the breeding season but do not pair for life. The nest is built entirely by the female and is placed in dense vegetation close to the ground. It is a loose unwoven cup of dried grass lined with hair and feathers. The eggs are laid in early morning at daily intervals. The clutch is typically 4–6 eggs, which are pale blue to greenish-blue with red-brown freckles that are more numerous at the larger end. The average size of an egg is 18.7 mm × 14.4 mm (0.74 in × 0.57 in) with a weight of 2.0 g (0.071 oz). They are incubated for 13–14 days by the female beginning after the last egg is laid. Both parents care for and feed the chicks. They are brooded by the female. The nestlings fledge 12–16 days after hatching but continue to be fed by both parents for a further 4–5 days after which the female begins building a new nest for another brood while the male continues to feed the young for another 5–10 days. The parents raise two or three broods in a season.

12-1-2024 CREU DE LONGA, ALBUFERA - LITTLE EGRET (Egretta garzetta)

The little egret (Egretta garzetta) is a species of small heron in the family Ardeidae. It is a white bird with a slender black beak, long black legs and, in the western race, yellow feet. As an aquatic bird, it feeds in shallow water and on land, consuming a variety of small creatures. It breeds colonially, often with other species of water birds, making a platform nest of sticks in a tree, bush or reed bed. A clutch of three to five bluish-green eggs is laid and incubated by both parents for about three weeks. The young fledge at about six weeks of age.

Its breeding distribution is in wetlands in warm temperate to tropical parts of Asia, Africa, Australia, and Europe. A successful colonist, its range has gradually expanded north, with stable and self-sustaining populations now present in the United Kingdom.

In warmer locations, most birds are permanent residents; northern populations, including many European birds, migrate to Africa and southern Asia to over-winter there. The birds may also wander north in late summer after the breeding season, and their tendency to disperse may have assisted in the recent expansion of the bird's range. At one time common in Western Europe, it was hunted extensively in the 19th century to provide plumes for the decoration of hats and became locally extinct in northwestern Europe and scarce in the south. Around 1950, conservation laws were introduced in southern Europe to protect the species and their numbers began to increase. By the beginning of the 21st century the bird was breeding again in France, the Netherlands, Ireland and Britain. Its range is continuing to expand westward, and the species has begun to colonise the New World; it was first seen in Barbados in 1954 and first bred there in 1994.


 

12-1-2024 SOLLANA SOUTH, VALENCIA - EURASIAN MAGPIE (Pica pica)


The Eurasian magpie or common magpie (Pica pica) is a resident breeding bird throughout the northern part of the Eurasian continent. It is one of several birds in the crow family (corvids) designated magpies, and belongs to the Holarctic radiation of "monochrome" magpies. In Europe, "magpie" is used by English speakers as a synonym for the Eurasian magpie: the only other magpie in Europe is the Iberian magpie (Cyanopica cooki), which is limited to the Iberian Peninsula. Despite having a shared name and close appearance, it is not closely related to the Australian Magpie.

The Eurasian magpie is one of the most intelligent birds, and it is believed to be one of the most intelligent of all non-human animals. The expansion of its nidopallium is approximately the same in its relative size as the brain of chimpanzees, gorillas, orangutans and humans. It is the only bird known to pass the mirror test, along with very few other non-avian species.

12-1-2024 ALBUFERA, VALENCIA - MEADOW PIPIT (Anthus pratensis)


The meadow pipit (Anthus pratensis) is a small passerine bird, which breeds in much of the Palearctic, from southeastern Greenland and Iceland east to just east of the Ural Mountains in Russia, and south to central France and Romania; an isolated population also occurs in the Caucasus Mountains. It is migratory over most of its range, wintering in southern Europe, North Africa, and south-western Asia, but is resident year-round in western Europe, though even here many birds move to the coast or lowlands in winter.

This is a widespread and often abundant small pipit, 14.5–15 cm (5+1⁄2–6 in) long and 15–22 g (0.53–0.78 oz) weight. It is an undistinguished-looking species on the ground, mainly brown above and buff below, with darker streaking on most of its plumage; the tail is brown, with narrow white side edges. It has a thin bill and pale pinkish-yellow legs; the hind claw is notably long, longer than the rest of the hind toes. The call is a weak tsi-tsi. The simple repetitive song is given in a short song flight. Birds breeding in Ireland and western Scotland are slightly darker coloured than those in other areas, and are often distinguished as the subspecies A. p. whistleri, though it intergrades clinally with nominate A. p. pratensis found in the rest of the species' range.

It is similar to the red-throated pipit A. cervinus, which is more heavily streaked and (in summer only) has an orange-red throat, and to the tree pipit A. trivialis, which is slightly larger, less heavily streaked, and has stronger facial markings and a shorter hind claw. The song of the meadow pipit accelerates towards the end while that of the tree pipit slows down.

12-1-2024 ALBUFERA, VALENCIA - EUROPEAN GOLDFINCH (Carduelis carduelis)


The European goldfinch or simply the goldfinch (Carduelis carduelis) is a small passerine bird in the finch family that is native to Europe, North Africa and western and central Asia. It has been introduced to other areas, including Australia, New Zealand and Uruguay.

The breeding male has a red face with black markings around the eyes, and a black-and-white head. The back and flanks are buff or chestnut brown. The black wings have a broad yellow bar. The tail is black and the rump is white. Males and females are very similar, but females have a slightly smaller red area on the face.

The goldfinch is often depicted in Italian Renaissance paintings of the Madonna and Child.

12-1-2024 MASSANASSA, ALBUFERA - EURASIAN KESTREL (Falco tinnunculus)


The common kestrel (Falco tinnunculus) is a bird of prey species belonging to the kestrel group of the falcon family Falconidae. It is also known as the European kestrel, Eurasian kestrel, or Old World kestrel. In the United Kingdom, where no other kestrel species commonly occurs, it is generally just called "kestrel".

This species occurs over a large range. It is widespread in Europe, Asia, and Africa, as well as occasionally reaching the east coast of North America. It has colonized a few oceanic islands, but vagrant individuals are generally rare; in the whole of Micronesia for example, the species was only recorded twice each on Guam and Saipan in the Marianas.

Common kestrels measure 32–39 cm (12+1⁄2–15+1⁄2 in) from head to tail, with a wingspan of 65–82 cm (25+1⁄2–32+1⁄2 in). Females are noticeably larger, with the adult male weighing 136–252 g (4+3⁄4–8+7⁄8 oz), around 155 g (5+1⁄2 oz) on average; the adult female weighs 154–314 g (5+3⁄8–11+1⁄8 oz), around 184 g (6+1⁄2 oz) on average. They are thus small compared with other birds of prey, but larger than most songbirds. Like the other Falco species, they have long wings as well as a distinctive long tail.

Their plumage is mainly light chestnut brown with blackish spots on the upperside and buff with narrow blackish streaks on the underside; the remiges are also blackish. Unlike most raptors, they display sexual colour dimorphism with the male having fewer black spots and streaks, as well as a blue-grey cap and tail. The tail is brown with black bars in females, and has a black tip with a narrow white rim in both sexes. All common kestrels have a prominent black malar stripe like their closest relatives.

The cere, feet, and a narrow ring around the eye are bright yellow; the toenails, bill and iris are dark. Juveniles look like adult females, but the underside streaks are wider; the yellow of their bare parts is paler. Hatchlings are covered in white down feathers, changing to a buff-grey second down coat before they grow their first true plumage.


In the cool-temperate parts of its range, the common kestrel migrates south in winter; otherwise it is sedentary, though juveniles may wander around in search for a good place to settle down as they become mature. It is a diurnal animal of the lowlands and prefers open habitat such as fields, heaths, shrubland and marshland. It does not require woodland to be present as long as there are alternative perching and nesting sites like rocks or buildings. It will thrive in treeless steppe where there are abundant herbaceous plants and shrubs to support a population of prey animals. The common kestrel readily adapts to human settlement, as long as sufficient swathes of vegetation are available, and may even be found in wetlands, moorlands and arid savanna. It is found from the sea to the lower mountain ranges, reaching elevations up to 4,500 m (14,800 ft) ASL in the hottest tropical parts of its range but only to about 1,750 m (5,740 ft) in the subtropical climate of the Himalayan foothills.

Globally, this species is not considered threatened by the IUCN. Its stocks were affected by the indiscriminate use of organochlorines and other pesticides in the mid-20th century, but being something of an r-strategist able to multiply quickly under good conditions it was less affected than other birds of prey. The global population has been fluctuating considerably over the years but remains generally stable; it is roughly estimated at 1–2 million pairs or so, about 20% of which are found in Europe. There has been a recent decline in parts of Western Europe such as Ireland. Subspecies dacotiae is quite rare, numbering less than 1000 adult birds in 1990, when the ancient western Canarian subspecies canariensis numbered about ten times as many birds. 

26-12-2023 NGALA LODGE, GAMBIA - PIED CROW (Corvus albus)

The pied crow (Corvus albus) is a widely distributed African bird species in the crow genus of the family Corvidae.

Structurally, the pied crow is better thought of as a small crow-sized raven, especially as it can hybridise with the Somali crow (dwarf raven) where their ranges meet in the Horn of Africa. Its behaviour, though, is more typical of the Eurasian carrion crows, and it may be a modern link (along with the Somali crow) between the Eurasian crows and the common raven.

It is about the size of the European carrion crow or a little larger (46–50 cm in length), but has a proportionately larger bill, slightly longer tail and wings, and longer legs. As its name suggests, its glossy black head and neck are interrupted by a large area of white feathering from the shoulders down to the lower breast. The tail, bill, and wings are black, too. The eyes are dark brown. The white plumage of immature birds is often mixed with black. It resembles the white-necked and thick-billed ravens, but has a much smaller bill.


Thursday, 11 January 2024

26-12-2023 BAKAU, GAMBIA - COMMON BULBUL (Pycnonotus barbatus)

The common bulbul (Pycnonotus barbatus) is a member of the bulbul family of passerine birds. It is found in north-eastern, northern, western and central Africa.

The bill is fairly short and thin, with a slightly downwards curving upper mandible. The bill, legs, and feet are black and the eye is dark brown with a dark eye-ring, which is not readily visible. It is about 18 cm in length, with a long tail. It has a dark brown head and upperparts. Sexes are similar in plumage.

It is a common resident breeder in much of Africa, and it has recently been found breeding in southern Spain at Tarifa. It is found in woodland, coastal bush, forest edges, riverine bush, montane scrub, and in mixed farming habitats. It is also found in exotic thickets, gardens, and parks.


The common bulbul is usually seen in pairs or small groups. It is a conspicuous bird, which tends to sit at the top of a bush. As with other bulbuls they are active and noisy birds. The flight is bouncing and woodpecker-like. The call is a loud doctor-quick doctor-quick be-quick be-quick.

This species nests throughout the year in the moist tropics, elsewhere it is a more seasonal breeder with a peak in breeding coinciding with the onset of the rainy season. The nest is fairly rigid, thick-walled and cup-shaped. It is usually situated inside the leafy foliage of a small tree or shrub.

Two or three eggs are a typical clutch. Like other bulbuls, it is parasitised by the Jacobin cuckoo.

This species eats fruit, nectar, seeds and insects.

26-12-2023 BAKAU, GAMBIA - LONG TAILED GLOSSY STARLING (Lamprotornis caudatus)


The long-tailed glossy starling (Lamprotornis caudatus) is a member of the starling family of birds. It is a resident breeder in tropical Africa from Senegal east to Sudan.

This common passerine is typically found in open woodland and cultivation. The long-tailed glossy starling builds a nest in a hole. The normal clutch is two to four eggs.

This ubiquitous bird is gregarious and noisy, with a harsh grating call.

The adults of these 54 cm (21 in) long birds have metallic green upperparts, violet underparts and a 34 cm (13 in) long purple tail. The face is black with a yellow eye. The sexes are similar, but juveniles are duller, with a brownish tone to the plumage.

26-12-2023 BAKAU, GAMBIA - SENEGAL COUCAL (Centropus senegalensis)


The Senegal coucal (Centropus senegalensis) is a member of the cuckoo order of birds, the Cuculiformes, which also includes the roadrunners, the anis, and the hoatzin. It is a medium-sized member of its genus and is found in lightly-wooded country and savannah in central and southern Africa.

This is a medium-sized species at 39 cm (15 in) in length. Its crown, nape and upper parts, bill, legs and long tail are black, the eyes are red, the wings are chestnut, and the underparts are creamy white, with blackish barring on the flanks. The sexes are similar, but juveniles are browner and more heavily barred above, with buff to cinnamon, barred and streaked underparts.

It is a widespread species distributed through much of central and southern Africa south of the Sahara Desert. The range extends from Senegal in the west to Ethiopia and Kenya in the east, and Angola and Congo to the south. A separate population in southern Africa is centred on Zambia, Zimbabwe and northern Botswana. The Senegal coucal is a bird of grassy habitats with trees, such as bushes and savannah.

The Senegal coucal takes a wide range of insects, caterpillars and small vertebrates. It occasionally eats other food items. It nests off the ground in low vegetation, and the typical clutch is two to four eggs laid in a large nest built from stalks and leaves.

26-12-2023 BAKAU, GAMBIA - PIED KINGFISHER (Ceryle rudis)

The pied kingfisher (Ceryle rudis) is a species of water kingfisher widely distributed across Africa and Asia. Originally described by Carl Linnaeus in 1758, it has five recognised subspecies. Its black and white plumage and crest, as well as its habit of hovering over clear lakes and rivers before diving for fish, make it distinctive. Males have a double band across the breast, while females have a single broken breast band. They are usually found in pairs or small family groups. When perched, they often bob their head and flick up their tail.


This is a medium-sized kingfisher, about 25 cm (9.8 in) long with a white with a black mask, a white supercilium and black breast bands. The crest is neat and the upperparts are barred in black. Several subspecies are recognized within the broad distribution. The nominate race is found in sub-Saharan Africa, extending into West Asia. The subspecies syriacus is a larger northern bird similar to the nominate subspecies (following Bergmann's rule). Subspecies leucomelanura is found from Afghanistan east into India, Thailand and Southeast Asia. The subspecies travancoreensis of the Western Ghats is darker with the white reduced. The subspecies C. r. insignis is found in Hainan and southeastern China and has a much larger bill. Males have a narrow second breast-band while females have a single broken breast band.


This kingfisher feeds mainly on fish, although it will take crustaceans and large aquatic insects such as dragonfly larvae. It usually hunts by hovering over the water to detect prey, before diving vertically bill-first to capture fish. When not foraging, it has a straight rapid flight and have been observed flying at speeds approaching 50 km/h. In Lake Victoria in East Africa, the introduction of the Nile perch reduced the availability of haplochromine cichlids which were formerly the preferred prey of these birds.

It can consume prey without returning to a perch, often manipulating the subject with its bill and swallowing in flight, and so can hunt over large water bodies or in estuaries that lack perches required by other kingfishers.


26-12-2023 NGALA LODGE, GAMBIA - HOODED VULTURE (Necrosyrtes monachus)


The hooded vulture (Necrosyrtes monachus) is an Old World vulture in the order Accipitriformes, which also includes eagles, kites, buzzards and hawks. It is the only member of the genus Necrosyrtes, which is sister to the larger Gyps genus, both of which are a part of the Aegypiinae subfamily of Old World vultures. It is native to sub-Saharan Africa, where it has a widespread distribution with populations in southern, East and West Africa. It is a scruffy-looking, small vulture with dark brown plumage, a long thin bill, bare crown, face and fore-neck, and a downy nape and hind-neck. Its face is usually a light red colour. It typically scavenges on carcasses of wildlife and domestic animals. Although it remains a common species with a stable population in the lower region of Casamance, some areas of The Gambia, and Guinea-Bissau, other regions such as Dakar, Senegal, show more than 85% losses in population over the last 50 years. Threats include poisoning, hunting, loss of habitat and collisions with electricity infrastructure, and the International Union for Conservation of Nature has rated its conservation status as "critically endangered" in their latest assessment (2022). The highest current regional density of hooded vultures is in the western region of The Gambia.

27-12-2023 BRUFUT FOREST - RAINBOW AGAMA (Agama agama)


The Rainbow Agama or Red-headed Rock Agama is one of the most colorful reptiles. The species is distributed over most of Sub-Sahara Africa. Males are territorial and defend a relatively small patch of rock aggressively against any intruder. The conservation status of Agama agama, which is also often for sale and kept in private terrariums, is not yet defined by IUCN.

27-12-2023 BRUFUT FOREST - ELEGANT ACRAEA BUTTERFLY (Acraea egina)

Acraea egina, the elegant acraea, is a species of butterfly in the family Nymphalidae with an extensive range in sub-Saharan Africa.

This species can be found in Senegal, Gambia, Guinea-Bissau, Guinea, Burkina Faso, Sierra Leone, Liberia, Ivory Coast, Ghana, Togo, Nigeria, Cameroon, Equatorial Guinea, Gabon, the Republic of the Congo, the Central African Republic, Angola, the Democratic Republic of the Congo, Sudan, Uganda, Ethiopia, Kenya, Tanzania, Malawi, Zambia, Mozambique, Zimbabwe and South Africa.

The habitats of this species mainly consists of dry forests and savannah, but it also prefers clearings and open areas in the rainforest.

The wingspan of Acraea egina can reach 60–65 millimetres (2.4–2.6 in). Wings are basically brick red, with black spots on both forewings and hindwings and a quite large black margin on the hindwing upperside. These butterflies are closely mimicked by Pseudacraea boisduvali and by Graphium ridleyanus in the shade of color, in the cut of the wings and in the pattern of markings.

The larvae of Acraea egina are whitish with black rings and black tubercules, while the pupae are pinkish brown. They feed on Adenia lobata and Rawsonia species.


Wednesday, 10 January 2024

27-12-2023 BRUFUT FOREST - LAUGHING DOVE (Streptopelia senegalensis)


The laughing dove (Spilopelia senegalensis) is a small pigeon that is a resident breeder in Africa, the Middle East, South Asia, and Western Australia where it has established itself in the wild after being released from Perth Zoo in 1898. This small long-tailed dove is found in dry scrub and semi-desert habitats where pairs can often be seen feeding on the ground. It is closely related to the spotted dove (Spilopelia chinensis) which is distinguished by a white and black chequered necklace. Other names include laughing turtle dove, palm dove and Senegal dove while in Asia the name little brown dove is often used.

27-12-2023 BRUFUT FOREST - RED EYED DOVE (Streptopelia semitorquata)

The red-eyed dove is a largish, stocky pigeon, typically 30 cm (12 in) in length. Its back, wings and tail are pale brown. When flying, it shows blackish flight feathers. The head and underparts are dark vinous-pink, shading to pale grey on the face. There is a black hind neck patch edged with white. The legs and a patch of bare skin around the eye are red. The call is a loud doo-doo-du-du.

Sexes are similar, but juveniles are duller than adults and have scalloping on the body feathers.

Red-eyed doves eat grass seeds, grains and other vegetation. They often forage on the ground.

It is distributed through most of Sub-Saharan Africa, except in desert zones. It is a common, if not abundant, species in most habitats other than deserts. Like several other species in this genus, they are not particularly gregarious and often feed alone or in pairs. They can be found in forests near rivers.

This species builds a stick nest in a tree and lays two white eggs. Its flight is quick, with the regular beats and an occasional sharp flick of the wings, which are characteristic of pigeons in general.


 

27-12-2023 BRUFUT FOREST - VERREAUX'S EAGLE OWL (Bubo lacteus)


Verreaux's eagle-owl is a highly opportunistic predator equipped with powerful talons. Just over half of its known diet is composed of mammals but equal or even greater numbers of birds and even insects may be hunted locally, along with any other appropriately sized prey that is encountered. This species is considered of Least Concern by IUCN as it occurs over a wide range and has shown some adaptability to human-based alterations and destruction of habitat and adaptability to diverse prey when a primary prey species declines in a region. As a large, highly territorial species of owl, it does, however, occur at fairly low densities and some regional declines have been reported.

The common name commemorates the French naturalist Jules Verreaux. The type specimen that was later described by Temminck at the Rijksmuseum van Natuurlijke Historie was collected by Verreaux while he was still in his teens.

27-12-2023 KOTU CREEK, GAMBIA - WHIMBREL (Numenius phaeopus)

The Eurasian or common whimbrel (Numenius phaeopus), also known as the white-rumped whimbrel in North America, is a wader in the large family Scolopacidae. It is one of the most widespread of the curlews, breeding across much of subarctic Asia and Europe as far south as Scotland. This species and the Hudsonian whimbrel have recently been split, although some taxonomic authorities still consider them to be conspecific.


The Eurasian whimbrel is a fairly large wader, though mid-sized as a member of the curlew genus. It is 37–47 cm (15–19 in) in length, 75–90 cm (30–35 in) in wingspan, and 270–493 g (9.5–17.4 oz; 0.595–1.087 lb) in weight. It is mainly greyish brown, with a white back and rump (subspecies N. p. phaeopus and N. p. alboaxillaris only), and a long curved beak with a kink rather than a smooth curve. The usual call is a rippling whistle, prolonged into a trill for the song. The only similar common species over most of this bird's range are larger curlews. The whimbrel is smaller, has a shorter, decurved bill and has a central crown stripe and strong supercilia.

The whimbrel is a migratory bird wintering on coasts in Africa, and South Asia into Australasia. It is also a coastal bird during migration. It is fairly gregarious outside the breeding season. It is found in Ireland and the United Kingdom, and it breeds in Scotland, particularly around Shetland, Orkney, the Outer Hebrides as well as the mainland at Sutherland and Caithness.

27-12-2023 KOTU CREEK, GAMBIA - LONG TAILED CORMORANT (Microcarbo africanus)

A small, speckle-backed cormorant that is common and widespread in fresh water. The adult is blackish with a short black crest above the bill. Immatures are brownish with paler underparts. Although they share the same habitat with Great Cormorant, Long-tailed Cormorants can be separated by their much smaller size, red eyes, and proportionately longer tails. Generally, Long-tailed Cormorant avoids the marine habitats of the similar-looking Crowned Cormorant, which has a larger crest, an unspeckled back, and a shorter tail.


This is a small cormorant, 50–55 cm (20–22 in) in overall length with a wingspan of 80–90 cm (31–35 in). It is mainly black, glossed green, in the breeding season. The wing coverts are silvery. It has a longish tail, a short head crest and a red or yellow face patch. The bill is yellow.

The sexes are similar, but non-breeding adults and juveniles are browner, with a white belly. Some southern races retain the crest all year round.

This is a common and widespread species, and is not considered to be threatened. It breeds on freshwater wetlands or quiet coasts.

The reed cormorant can dive to considerable depths, but usually feeds in shallow water. It frequently brings prey to the surface. It takes a wide variety of fish. It prefers small slow-moving fish, and those with long and tapering shapes, such as mormyrids, catfishes, and cichlids. It will less frequently eat soles (which can be important in its diet locally), frogs, aquatic invertebrates, and small birds.

Two to four eggs are laid in a nest in a tree or on the ground, normally hidden from view by long grass.


27-12-2023 KOTU CREEK, GAMBIA - YELLOW BILLED KITE (Milvus migrans ssp. parasitus)

The yellow-billed kite (Milvus aegyptius ) is the Afrotropic counterpart of the black kite (Milvus migrans ), of which it is most often considered a subspecies. However, recent DNA studies suggest that the yellow-billed kite differs significantly from black kites in the Eurasian clade, and should be considered as a separate, allopatric species.

There are two subspecies: M. a. parasitus, found throughout most of sub-Saharan Africa (including Madagascar), except for the Congo Basin (with intra-African migrations) and M. a. aegyptius of Egypt, south-west Arabia and the Horn of Africa (which disperses south during the non-breeding season).

27-12-2023 KOTU CREEK, GAMBIA - AFRICAN DARTER (Anhinga rufa)

The African darter (Anhinga rufa), sometimes called the snakebird, is a water bird of sub-Saharan Africa and Iraq.

The African darter is a member of the darter family, Anhingidae, and is closely related to American (Anhinga anhinga), Oriental (Anhinga melanogaster), and Australasian (Anhinga novaehollandiae) darters.

The African darter is 80 cm (31 in) long. Like other anhingas, it has a very long neck. The male is mainly glossy black with white streaking; females and immature birds are browner. The African darter differs in appearance from the American darter most recognisably by its thin white lateral neck stripe against a rufous background colour. The pointed bill prevents confusion with cormorants.

The African darter is found throughout sub-Saharan Africa wherever large bodies of water occur; overall the species remains widespread and common.

The only non-African subspecies, the Levant darter (Anhinga rufa chantrei), occurred at Lake Amik (Amik Gölü) in south-central Turkey, in the Hula Valley lake and marshes in northern Israel and in the Mesopotamian Marshes of the lower Euphrates and Tigris rivers in southern Iraq. The Turkish population disappeared during the 1930s and the Israeli population during the drainage of the Hula in the 1950s. In Khuzestan, 110 birds were counted in 1990, but the subspecies was feared extinct as a result of oil spills during the Gulf War and the drainage of the Mesopotamian Marshes that followed it. However, a small population was documented in the Hawizeh Marshes in 2007. The drainage of the marshes was interrupted and reversed after the Iraq War.


This species builds a stick nest in a tree and lays 3–6 eggs. It often nests with herons, egrets and cormorants.

It often swims with only the neck above water, hence the common name snakebird. This, too, is a habit shared with the other anhingas. It feeds on fish, which it catches by diving.

Unlike many other waterbirds the feathers of the African darter do not contain any oil and are therefore not waterproof. Because of this, the bird is less positively buoyant and its diving capabilities are enhanced. After diving for fish, the feathers can become waterlogged. In order to be able to fly and maintain heat insulation, it needs to dry its feathers. Thus the African darter is often seen sitting along the waterside spreading its wings and drying its feathers in the wind and the sun along with cormorants, which may share its habitat.

27-12-2023 KOTU CREEK, GAMBIA - LONG TAILED CORMORANT (Microcarbo africanus)

The reed cormorant (Microcarbo africanus), also known as the long-tailed cormorant, is a bird in the cormorant family Phalacrocoracidae. It breeds in much of Africa south of the Sahara, and Madagascar. It is resident but undertakes some seasonal movements.

This is a small cormorant, 50–55 cm (20–22 in) in overall length with a wingspan of 80–90 cm (31–35 in).[7] It is mainly black, glossed green, in the breeding season. The wing coverts are silvery. It has a longish tail, a short head crest and a red or yellow face patch. The bill is yellow.

The sexes are similar, but non-breeding adults and juveniles are browner, with a white belly. Some southern races retain the crest all year round.

This is a common and widespread species, and is not considered to be threatened. It breeds on freshwater wetlands or quiet coasts.

The reed cormorant can dive to considerable depths, but usually feeds in shallow water. It frequently brings prey to the surface. It takes a wide variety of fish. It prefers small slow-moving fish, and those with long and tapering shapes, such as mormyrids, catfishes, and cichlids. It will less frequently eat soles (which can be important in its diet locally), frogs, aquatic invertebrates, and small birds.

Two to four eggs are laid in a nest in a tree or on the ground, normally hidden from view by long grass.


 

Tuesday, 9 January 2024

27-12-2023 KOTU CREEK, GAMBIA - SPUR WINGED LAPWING (Vanellus spinosus)

The spur-winged lapwing or spur-winged plover (Vanellus spinosus) is a lapwing species, one of a group of largish waders in the family Charadriidae.

It is one of several species of wader supposed to be the "trochilus" bird said by Herodotus to have been involved in an unattested cleaning symbiosis with the Nile crocodile.

The spur-winged lapwing breeds around the eastern Mediterranean, and in a wide band from sub-Saharan west Africa to Arabia. The Greek and Turkish breeders are migratory, but other populations are resident. The species is declining in its northern range, but is abundant in much of tropical Africa, being seen at almost any wetland habitat in its range. The spur-winged lapwing is one of the species to which the Agreement on the Conservation of African-Eurasian Migratory Waterbirds applies.

In eastern and southern Africa the species has seen a range increase, entering Zambia for the first time in 1999 and spreading south and west.


These are conspicuous and unmistakable birds. They are medium-large waders with black crown, chest, foreneck stripe and tail. The face, the rest of the neck and belly are white and the wings and back are light brown. The bill and legs are black. Its striking appearance is supplemented by its noisy nature, with a loud did-he-do-it call. The bird's common name refers to a small claw or spur hidden in each of its wings.

This species has a preference for marshes and similar freshwater wetland habitats. The food of the spur-winged lapwing is insects and other invertebrates, which are picked from the ground.

It lays four blotchy yellowish eggs on a ground scrape. The spur-winged lapwing is known to sometimes use the wing-claws in an attack on animals and, rarely, people, who get too close to the birds' exposed offspring. 

27-12-2023 BRUFUT FOREST, GAMBIA - BROWN THROATED WATTLE EYE (Platysteira cyanea)

The adult brown-throated wattle-eye is a stout bird about 14 cm (5.5 in) long. The breeding male has glossy black upperparts, and white underparts with a neat black breast band. There is a strong white wingbar, and fleshy red wattles above the eye.

The females are grey-black above, and also have the white wing bar and red wattles. There is a small patch of white below the bill, and the throat and breast are maroon, separated from the white belly by the black breast band. Young males are washed-out, greyer versions of the female.

These active insect-eating birds are found in pairs or small groups. The ringing call of the brown-throated wattle-eye is a very characteristic six note doo-dd-dum-di-do-do.