Wednesday, 24 October 2018
24-10-2018 ALBUFERA, VALENCIA - GREAT EGRET (Ardea alba)
The great egret, known scientifically as Ardea alba, is a majestic bird with a stately bearing and an impressive wingspan. This large egret is adorned with all-white plumage and can stand up to a meter tall. It is a cosmopolitan species, found across temperate and tropical regions worldwide.
To identify the great egret, look for its yellow bill and contrasting black legs and feet, which may vary slightly during the breeding season. During this time, the bill may darken, and the lower legs may lighten. The great egret also sports ornamental feathers on its back when in breeding plumage. Both sexes appear identical, and juveniles resemble nonbreeding adults. The great egret can be distinguished from the intermediate egret by the gape of its bill, which extends well beyond the back of the eye.
The great egret favors habitats close to water, such as large lakes with reed beds and other extensive wetlands. It nests in colonies, often at heights of 10 to 40 feet within trees.
This bird has a vast range, occurring worldwide in suitable habitats. It is particularly common across the Sun Belt of the United States and throughout the Neotropics.
The great egret is known for its slow, graceful flight with its neck retracted, a characteristic of herons and bitterns. It walks with its neck extended and wings held close. Generally silent, it may emit a low, hoarse croak when disturbed and a louder croaking at breeding colonies.
The great egret's vocalizations include a low croak when disturbed and various croaking and squawking sounds during the breeding season.
Breeding begins at 2-3 years of age with monogamous pairings. The male initiates nest building to attract a female. The nest is a sizable structure of sticks, lined with plant material. The species lays up to six bluish-green eggs, with both parents sharing incubation duties over 23-26 days. The young are fed by regurgitation and can fly within 6-7 weeks.
The great egret can be confused with the snowy egret, which is smaller with a black bill and yellow feet. In North America, it may also be mistaken for the white morph of the great blue heron, which is larger with a thicker bill.
The great egret's diet consists of fish, frogs, small mammals, reptiles, crustaceans, and insects. It typically forages in shallow water, standing still or slowly stalking its prey before impaling it with its sharp bill.
The great egret is listed as Least Concern by the IUCN. It has recovered from historical threats such as plume hunting and has adapted well to human presence. It is partially migratory, with some populations moving south during colder winters. The species is a symbol of conservation success and represents the National Audubon Society.
24-10-2018 ALBUFERA, VALENCIA - COMMON BUZZARD (Buteo buteo)
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The Common Buzzard (Buteo buteo) is a medium-to-large bird of prey, with a robust body and broad wings. Its plumage is highly variable, ranging from almost uniform black-brown to mainly white. The head is round with a slender bill, and the tail is fairly short. The legs are somewhat short and mainly bare. This raptor measures between 40 and 58 cm in length and has a wingspan of 109–140 cm. Females are typically larger than males.
Buzzards have a round head, a somewhat slender bill, and long wings that reach or fall slightly short of the tail tip when perched. The tail is relatively short. They can appear compact but may also seem large relative to other common raptors. The plumage is highly variable, with typical individuals being dark brown above and paler below with a streaked throat and chest. Flight feathers are greyish, and the tail usually shows a broad dark subterminal band.
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Common Buzzards inhabit the interface of woodlands and open grounds, such as forest edges, small woods, or shelterbelts with adjacent grassland or farmland. They are also found in open moorland with some trees for perching and nesting.
The species is widespread across Europe, extending its breeding range across the Palearctic to northwestern China, far western Siberia, and northwestern Mongolia. It is a year-round resident in much of its range but migrates south from colder parts of the Northern Hemisphere for the winter.
Buzzards spend much of their day perched, often on tree tops, bare branches, or telegraph poles. They are gifted soarers and can do so for extended periods. They hunt by dropping from a perch or by low flight, mainly taking prey on the ground.
The main call is a plaintive, far-carrying "pee-yow" or "peee-oo," used for contact and in aerial displays. Calls vary in sharpness and pitch depending on the context, such as aggression, warning, or alarm.
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Buzzards typically build bulky nests of sticks and twigs, often lined with greenery. They lay 2 to 6 eggs, with the female doing most of the incubation over 33–35 days. The young fledge at around 43–54 days old.
The Common Buzzard may be confused with other raptors, especially the European Honey Buzzard, which mimics the plumage of the Common Buzzard. However, Honey Buzzards have distinct flight patterns and wing shapes.
Buzzards are opportunistic predators, feeding mostly on small mammals, especially rodents like voles. They also take birds, reptiles, amphibians, insects, and occasionally carrion. Hunting success is influenced by habitat and prey availability.
Tuesday, 23 October 2018
23-10-2018 MONTE CORONA, VALENCIA - VESTAL MOTH (Rhodometra sacraria)
Rhodometra sacraria, the vestal, is a moth of the family Geometridae. The species was first described by Carl Linnaeus in his 1767 12th edition of Systema Naturae.
It can be found throughout Europe, in the Near East, in North Africa, in the Afrotropical realm and in large parts of Asia. It is also found in South America (Chile and Argentina).
Rhodometra sacraria inhabits meadows, forest clearing, paths, gardens and urban environments.
Rhodometra sacraria has a wingspan reaching 22–28 mm, while the length of the forewings is 12–14 mm. The late generations are smaller and the wingspan has an average of 16–26 mm. These moths are easily distinguishable from the mahogany or pink stripe, located on yellowish or cream background, crossing diagonally the dorsal sides of the upperwings from the posterior margin up to the apex. Discal spots are usually present and have the same colour as the postmedial line.
Monday, 22 October 2018
14-4-2018 CHOBE RIVER, NAMIBIA - SOUTHERN RED BISHOP (Euplectes orix)
The southern red bishop or red bishop (Euplectes orix) is a small passerine bird belonging to the bishop and widowbird genus Euplectes in the weaver family, the Ploceidae. It is common in wetlands and grassland in Africa south of the Equator. North of the Equator, it is replaced by the northern red bishop or orange bishop (E. franciscanus) which was formerly regarded as a subspecies of this species.
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It occurs from South Africa north to Angola, southern and eastern parts of the Democratic Republic of Congo, northern Zambia southern Uganda north-east Nigeria and south-west Kenya. It is largely absent from the Namib Desert and Kalahari.
In the breeding season it is found near water among grass, reeds, sedges or crops such as sugar cane. Outside the breeding season it will venture into drier grassland and savanna habitats.
17-4-2018 CHOBE RIVER, NAMIBIA - BLUE CHEEKED BEE-EATER (Merops persicus)
The blue-cheeked bee-eater, Merops persicus, is a near passerine bird belonging to the bee-eater family, Meropidae. This slender and richly coloured species is predominantly green, with distinctive blue cheeks framed by a black eye stripe. A yellow and brown throat complements its striking face, and a black beak punctuates its elegant profile. Adults can reach a length of 31 cm (12 inches), with elongated central tail feathers adding an extra 7 cm (2.8 inches). Both sexes are similar in appearance, though females have slightly shorter tail streamers.
When identifying the blue-cheeked bee-eater, look for its vibrant green plumage and the characteristic blue on the sides of its face. The black eye stripe and contrasting yellow and brown throat are also key features. In flight, observe for the long central tail feathers that trail behind.
22-10-2018 TURIA GARDENS, VALENCIA - EURASIAN BLACKBIRD (MALE) (Turdus merula)
The Common blackbird (Turdus merula) is a species of true thrush. It is also called the Eurasian blackbird (especially in North America, to distinguish it from the unrelated New World blackbirds), or simply the blackbird where this does not lead to confusion with a similar-looking local species. This common and conspicuous species has given rise to a number of literary and cultural references, frequently related to its song.
The adult male has glossy black plumage, blackish-brown legs, a yellow eye ring, and an orange-yellow bill. The bill darkens somewhat in winter. The adult female is sooty-brown with a dull yellowish-brownish bill, a brownish-white throat, and some weak mottling on the breast.
The juvenile is similar to the female but has pale spots on the upperparts, and the very young juvenile also has a speckled breast. Young birds vary in the shade of brown, with darker birds presumably males. The first-year male resembles the adult male but has a dark bill and weaker eye ring, and its folded wing is brown, rather than black like the body plumage.
Common blackbirds breed in Europe, North Africa, India, and southern China. Populations in the north and east migrate to winter in Egypt and the west and southeast of Asia. Depending on latitude, Common blackbirds may be resident, partially migratory, or fully migratory. These birds live in very varied habitats, including mountainous regions and big city centers, where they inhabit open forests and forest edges, woodlands, cultivated areas, gardens, and parks if the cover is dense enough for hiding.
Common blackbirds are diurnal and eat mainly on the ground, turning the leaf litter to find the invertebrates hidden below. The bird runs for a short distance and stops suddenly to turn its head sideways to detect its prey and hops while it digs the ground with its bill to attract worms. It will feed in trees and bushes on the fruits and berries that it prefers. These birds will often take sunbaths, while flattened on grass or warm ground, with their beak open and their head inclined, and wings and tails spread. Common blackbirds are territorial, strongly defending their territory, mostly in urban areas where each pair does not have much space. Females may also fight, in defense of a good nest site. While winter food is available, Common blackbirds will stay within their territory for the year, although they will occupy different areas. Migrating birds are more gregarious, flying in small flocks and eating in loose groups at the wintering grounds.
22-10-2018 TURIA GARDENS, VALENCIA - SPOTTED FLYCATCHER (Muscicapa striata)
The spotted flycatcher (Muscicapa striata ) is a small passerine bird in the Old World flycatcher family. It breeds in most of Europe and in the Palearctic to Siberia, and is migratory, wintering in Africa and south western Asia. It is declining in parts of its range.This is an undistinguished looking bird with long wings and tail. The adults have grey-brown upperparts and whitish underparts, with a streaked crown and breast, giving rise to the bird's common name. The legs are short and black, and the bill is black and has the broad but pointed shape typical of aerial insectivores. Juveniles are browner than adults and have spots on the upperparts.The spotted flycatcher (Muscicapa striata ) is a small passerine bird in the Old World flycatcher family. It breeds in most of Europe and in the Palearctic to Siberia, and is migratory, wintering in Africa and south western Asia. It is declining in parts of its range.This is an undistinguished looking bird with long wings and tail. The adults have grey-brown upperparts and whitish underparts, with a streaked crown and breast, giving rise to the bird's common name. The legs are short and black, and the bill is black and has the broad but pointed shape typical of aerial insectivores. Juveniles are browner than adults and have spots on the upperparts.
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2-10-2018 TURIA GARDENS, VALENCIA - EUROPEAN SERIN (JUVENILE) (Serinus serinus)
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The European serin, or simply the serin (Serinus serinus), is a diminutive member of the finch family, Fringillidae. This sprightly bird is the smallest within its family, closely related to the Atlantic canary. It is characterized by its short tail and a length that spans a mere 11 to 12 centimeters. The serin's plumage is a tapestry of nature's palette, with upper parts dappled in dark-streaked greyish green and a conspicuous yellow rump. The underparts are a canvas of yellow breast and white belly, both adorned with heavy streaks.
When attempting to identify the European serin, look for the male's radiant yellow face and breast, which stand out against the greenish backdrop of its feathers. The male also boasts yellow wing bars and yellow tail sides, which can be quite helpful in distinguishing it from similar species. Both sexes share a buzzing trill of a song that resonates through their Mediterranean habitats.
The European serin is partial to open woodland and cultivated areas, often with a sprinkling of conifers. These environments provide the perfect backdrop for breeding and foraging.
Sunday, 21 October 2018
15-4-2018 CHOBE RIVER, NAMIBIA - RED EYED DOVE (Streptopelia semitorquata)
The red-eyed dove, Streptopelia semitorquata, presents itself as a largish and stocky pigeon, measuring around 30 cm in length. Its plumage is a tapestry of pale brown across the back, wings, and tail, with a striking contrast of dark vinous-pink on the head and underparts, fading into a pale grey facade on the face. A distinctive black hind neck patch, neatly framed with white, adorns its nape, while the legs and a patch of bare skin encircling the eye boast a vivid red hue.
When observing the red-eyed dove, look for the characteristic blackish flight feathers displayed during flight. Both sexes mirror each other in appearance, but the juveniles can be distinguished by their duller coloration and the scalloped pattern adorning their body feathers.
This species is quite adaptable, making its home in a variety of habitats, save for deserts. It shows a preference for forests near rivers, where it can be seen foraging or resting.
The red-eyed dove is a common sight throughout Sub-Saharan Africa, where it has established a widespread presence, avoiding only the arid expanses of the desert.
The red-eyed dove is known for its solitary or paired foraging habits, as opposed to forming large flocks. It constructs a simple stick nest within the branches of a tree, where it lays a clutch of two white eggs. In flight, it exhibits the typical pigeon pattern of regular beats interspersed with occasional sharp wing flicks.
Its vocal repertoire consists of a loud and distinctive "doo-doo-du-du," a call that resonates through its habitat.
A diet of grass seeds, grains, and other vegetation sustains the red-eyed dove, with much of its foraging taking place on the ground.
Conservation status
The red-eyed dove enjoys a status of Least Concern on the IUCN Red List, reflecting its stable population numbers since 2004.
While similar in appearance to the Eurasian collared dove, the red-eyed dove can be differentiated by its unique coloration and the red patch of skin around its eye.
17-4-2018 CHOBE RIVER, BOTSWANA - MAINLAND AFRICAN DARTER (Anhinga rufa ssp. rufa)
The African darter (Anhinga rufa ), sometimes called the snakebird, is a water bird of sub-Saharan Africa and Iraq.
The male is mainly glossy black with white streaking, but 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 should prevent confusion with cormorants.
It is an 80 cm (31 in) long cormorant-like fish-eating species with a very long neck, like other anhingas.
The African darter is found throughout sub-Saharan Africa wherever large bodies of water occur; overall the species remains widespread and common.
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The only non-African subspecies, the Levant darter (Anhinga rufa chantrei ), occurred at Lake Amik (Amik Gölü) in south-central Turkey, in Hula valley lake and marshes in northern Israel and in the Mesopotamian Marshes of the lower Euphrat and Tigris rivers in southern Iraq. The Turkish population disappeared during the 1930s and the Israeli population during Hula drainage in the 1950s. In spite of 110 birds being counted in Khuzestan in 1990 alone, the subspecies was feared extinct as a result of oil spillages in southern Iraq during the Gulf War and the drainage of the Mesopotamian Marshes that followed it. However, a small but threatened population was documented in the Hawizeh Marshes in 2007, along with other waters birds like little grebe, pygmy cormorant, marbled teal and sacred ibis. 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.
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.
17-4-2018 CHOBE RIVER, BOTSWANA - VIOLET DROPWING DRAGONFLY (FEMALE) (Trithemis annulata)
Trithemis annulata, commonly known as the violet dropwing, violet-marked darter, purple-blushed darter, or plum-coloured dropwing, is a species of dragonfly in the family Libellulidae. It is found in most of Africa, the Middle East, the Arabian Peninsula, and southern Europe. These dragonflies are called dropwings because of their habit of immediately lowering their wings after landing on a perch. Males of this species are violet-red with red veins in the wings, while females are yellow and brown. Both sexes have red eyes.
Trithemis annulata is a robust medium-sized species with a wingspan of 60 mm (2.4 in). The mature male has a dark red head and a yellow labium with a brown central spot. The eyes are red with white spots on the rear edge, and the frons is dark metallic purplish-red. The prothorax is violet with slightly darker longitudinal stripes. The membranous wings have distinctive red veins, the pterostigma is orange-brown, and there is a large orange-brown splash at the base of the hind wings. The abdomen is fairly broad and is pinkish-violet, with purple markings on the top of each segment and blackish markings on the terminal three segments. Females are a similar size to males, but the thorax is brownish, and the abdomen is yellow with dark brown markings. The wings of females lack the red veins of males but have similar orange-brown patches. It is very similar in appearance to the red-veined dropwing (Trithemis arteriosa), but that species has a more slender abdomen and a wedge-shaped black area on either side of the tip of the abdomen.
Saturday, 20 October 2018
14-4-2018 CHOBE RIVER, NAMIBIA - GREY GO AWAY BIRD (Crinifer 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.
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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.
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.
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.
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.
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