Wednesday, 19 February 2020
Tuesday, 18 February 2020
12-2-2020 BIOPARC, VALENCIA - RUPPELL'S VULTURE (Gyps rueppelli)
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Rüppell's vulture (Gyps rueppelli) is a large bird and its name comes from the 19th-century German zoologist and explorer Eduard Rüppell. It is native to the Sahel region and East Africa and its current population is decreasing due to loss of habitat, incidental poisoning, and other factors. Rüppell's vulture is considered to be the highest-flying bird, with confirmed evidence of a flight at an altitude of 11,300 m (37,000 ft) above sea level.
Both sexes of this species look alike: mottled brown or black overall with a whitish-brown underbelly and thin, dirty-white fluff covering the head and neck. The base of the neck has a white collar, the eye is yellow or amber, and the crop patch is deep brown. The head does not have feathers. This is an adaptation that occurred because of the Rüppell vulture's tendency to stick its head inside of its prey when eating. Without the adaptation, feeding would become extremely messy.
Rüppell's vultures are diurnal and very social birds, roosting, nesting, and feeding in large flocks. Like most vultures, they are silent, except when at their nesting ground or foraging around a carcass. They spend much of their time flying, gliding with wings held level, or using slow, powerful wing beats. They often fly at great altitudes, using strong winds or thermals for more efficient soaring. These vultures locate food by sight only, and once they see a carcass they swoop down, land a little way off, and then bound forward with wings spread and their long neck outstretched. Fights with other vultures are common as the birds struggle to get their meal, their necks often turning deep red from aggression as they hiss, grunt, and chatter at their opponent.
12-2-2020 BIOPARC, VALENCIA - AFRICAN FISH EAGLE (Haliaeetus vocifer)
The African fish eagle, or African sea eagle, is a majestic bird of prey that graces the skies of sub-Saharan Africa. It is a symbol of national pride, being the national bird of Malawi, Namibia, Zambia, and Zimbabwe. This raptor is known for its striking appearance, with a mostly brown body contrasted by a snow-white head, breast, and tail. The face is featherless and a vivid yellow, matching the color of its formidable, hooked beak, tipped in black. The African fish eagle's eyes are a deep, dark brown, and its powerful black wings carry it effortlessly over open waters.
Adult African fish eagles are unmistakable with their white heads and chests, brown bodies, and large black wings. Females are larger than males, with wingspans reaching up to 2.4 meters, compared to the 2-meter span of males. Juveniles can be identified by their overall brown plumage and paler eyes. The species exhibits sexual dimorphism, with females being heavier, weighing between 3.2 to 3.6 kilograms, while males weigh between 2.0 to 2.5 kilograms.
These eagles are typically found near freshwater lakes, reservoirs, rivers, and sometimes along coastlines at river mouths or lagoons. They thrive in a variety of habitats, including grasslands, swamps, marshes, tropical rainforests, and even desert-bordering coastlines.
The African fish eagle is indigenous to sub-Saharan Africa, with a presence in most areas south of the Sahara Desert. It is commonly seen in regions like the Orange River, the Okavango Delta, and around Lake Victoria and other large Rift Valley lakes.
The African fish eagle is known for its iconic, evocative call, which many consider the essence of Africa. It is a territorial bird, often seen perched high in a tree, surveying its domain. When hunting, it exhibits remarkable prowess, swooping down to snatch fish from the water with its taloned feet.
The call of the African fish eagle is a high-pitched and clear "weee-ah, hyo-hyo" or "heee-ah, heeah-heeah," with the male's call being particularly shrill.
Breeding occurs during the dry season, with pairs believed to mate for life. They maintain and reuse multiple nests, which can grow quite large over time. The female lays one to three eggs, primarily white with reddish speckles, and both parents share incubation duties. Chicks fledge at around 70 to 75 days old and remain dependent on their parents for up to three months.
The African fish eagle primarily feeds on fish, which it catches by swooping from a perch. It has specialized structures on its toes called spiricules to help grasp slippery prey. While fish are the mainstay of its diet, it also consumes waterbirds, small turtles, baby crocodiles, frogs, insects, and occasionally mammals. It is also known to engage in kleptoparasitism, stealing prey from other birds.
The African fish eagle is classified as Least Concern by the IUCN, with an estimated population size of around 300,000 individuals and a wide distribution area.
The African fish eagle may be superficially similar to the bald eagle, but they are found on different continents and can be distinguished by their calls and habitat preferences.
Mummified African fish eagles have been discovered at the Necropolis at Elkab, indicating the bird's significance in ancient cultures.
12-2-2020 BIOPARC, VALENCIA - CHIMPANZEE (Pan troglodytes)
The chimpanzee (/tʃɪmpænˈzi/; Pan troglodytes), or simply known as the chimp, is a species of great ape native to the forests and savannahs of tropical Africa. It has four confirmed subspecies and a fifth proposed one. When its close relative the bonobo was more commonly known as the pygmy chimpanzee, this species was often called the common chimpanzee or the robust chimpanzee. The chimpanzee and the bonobo are the only species in the genus Pan. Evidence from fossils and DNA sequencing shows that Pan is a sister taxon to the human lineage and is thus humans' closest living relative. The chimpanzee is covered in coarse black hair, but has a bare face, fingers, toes, palms of the hands, and soles of the feet. It is larger and more robust than the bonobo, weighing 40–70 kg (88–154 lb) for males and 27–50 kg (60–110 lb) for females and standing 150 cm (4 ft 11 in).
The chimpanzee lives in groups that range in size from 15 to 150 members, although individuals travel and forage in much smaller groups during the day. The species lives in a strict male-dominated hierarchy, where disputes are generally settled without the need for violence. Nearly all chimpanzee populations have been recorded using tools, modifying sticks, rocks, grass and leaves and using them for hunting and acquiring honey, termites, ants, nuts and water. The species has also been found creating sharpened sticks to spear small mammals. Its gestation period is eight months. The infant is weaned at about three years old but usually maintains a close relationship with its mother for several years more.
The chimpanzee is listed on the IUCN Red List as an endangered species. Between 170,000 and 300,000 individuals are estimated across its range. The biggest threats to the chimpanzee are habitat loss, poaching, and disease. Chimpanzees appear in Western popular culture as stereotyped clown-figures and have featured in entertainments such as chimpanzees' tea parties, circus acts and stage shows. Although many chimpanzees have been kept as pets, their strength, aggressiveness, and unpredictability makes them dangerous in this role. Some hundreds have been kept in laboratories for research, especially in the United States. Many attempts have been made to teach languages such as American Sign Language to chimpanzees, with limited success.
Chimpanzees are highly intelligent, social great apes native to African forests and savannas, sharing roughly 98%–99% of their DNA with humans. Known for using tools, having complex emotional lives, and living in fission-fusion communities, they are our closest living relatives. They are endangered, with populations threatened by habitat loss and hunting.
Key Facts About Chimpanzees
Intelligence & Tools: Chimpanzees are among the most intelligent species, known for using sticks to "fish" for termites and leaves to soak up water. They can recognize themselves in mirrors, a sign of self-awareness.
Monday, 17 February 2020
17-2-2020 SALEM, VALENCIA - SMALL WHITE BUTTERFLY (Pieris rapae)
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Pieris rapae is a small-to-medium-sized butterfly species of the whites-and-yellows family Pieridae. It is known in Europe as the small white, in North America and the United Kingdom as the cabbage white or cabbage butterfly, on several continents as the small cabbage white, and in New Zealand as the white butterfly. The butterfly is recognizable by its white color with small black dots on its wings, and it can be distinguished from P. brassicae by the latter's larger size and black band at the tip of the forewings.
The caterpillar of this species, often referred to as the "imported cabbageworm", is a pest to crucifer crops such as cabbage, kale, bok choy and broccoli. Pieris rapae is widespread in Europe and Asia; it is believed to have originated in the Eastern Mediterranean region of Europe and to have spread across Eurasia thanks to the diversification of brassicaceous crops and the development of human trade routes. Over the past two centuries, it spread to North Africa (about 1800), North America (1860s), Hawaii (1897), New Zealand (1930), and Australia (1937), as a result of accidental introductions.
Sunday, 16 February 2020
12-2-2020 BIOPARC, VALENCIA - ABDIM'S STORK (Ciconia abdimii)
Abdim's stork (Ciconia abdimii), also known as the white-bellied stork, is a stork belonging to the family Ciconiidae. It is the smallest species of stork, feeds mostly on insects, and is found widely in open habitats in Sub-Saharan Africa and in Yemen. The common name commemorates the Turkish Governor of Wadi Halfa in Sudan, Bey El-Arnaut Abdim (1780–1827).
Abdim's stork is found widely in open habitats throughout Sub-Saharan Africa, from the Sahel to South Africa, being absent mainly from forests, dense woodlands and deserts. A smaller populations occurs in Yemen. It breeds colonially in trees, on cliffs or rooftops in the northern half of its range (north of the Equator) during the wet season from May to August, migrating to eastern and southern Africa for the remainder of the year. This stork has escaped or been deliberately released into Florida, U.S., but there is no evidence that the population is breeding and may only persist due to continuing releases or escapes.
Widespread and common throughout its large range, Abdim's stork is evaluated as Least Concern on the IUCN Red List of Threatened Species. It is the subject of several nationally coordinated breeding programs: in the United States, the plan for this species is administered by the Association of Zoos and Aquariums and in Europe by the European Association of Zoos and Aquaria.
The Abdim's stork is mostly insectivorous, feeding on locusts, caterpillars and other large insects, although these birds will also eat small reptiles, amphibians, mice, crabs and eggs] The female lays two to three eggs and is slightly smaller than the male.
12-2-2020 BIOPARC, VALENCIA - HELMETED GUINEA FOWL (Numida meleagris)
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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.
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This is a gregarious species, forming flocks outside the breeding season typically of about 25 birds that also roost communally. Guineafowl are particularly well-suited to consuming massive quantities of ticks, which might otherwise spread Lyme disease. These birds are terrestrial, and prone to run rather than fly when alarmed. Like most gallinaceous birds, they have a short-lived, explosive flight and rely on gliding to cover extended distances. Helmeted guineafowl can walk 10 km and more in a day. Their bodies are well-suited for running and they are remarkably successful in maintaining dynamic stability over rough terrain at speed. They make loud harsh calls when disturbed.
12-2-2020 BIOPARC, VALENCIA - GREY CROWNED CRANE (Balearica regulorum)
The Grey Crowned Crane, known scientifically as Balearica regulorum, stands as a majestic figure approximately 1 meter tall, with a wingspan stretching to 2 meters. This bird's plumage is predominantly grey, accented with a variety of colors on the wings and a striking black patch at the top. Its head is adorned with a crown of stiff golden feathers, setting it apart from its avian companions. The face is white, highlighted by a bright red inflatable throat pouch, and the bill is a modest grey. Black legs support its graceful frame, and its large, slender feet are designed for balance as it wades through grasslands.
Observers should note the Grey Crowned Crane's unique combination of features: the golden crown, white face, red throat pouch, and the black patch on the wings. Males and females are similar in appearance, though males may be slightly larger. Juveniles present a greyer complexion with a feathered buff face.
The Grey Crowned Crane favors the dry savannahs of Sub-Saharan Africa but is also comfortable in marshes, cultivated lands, and grassy flatlands near rivers and lakes.
This species is widespread across eastern and southern Africa, with a presence from the Democratic Republic of the Congo and Uganda, through Kenya, down to South Africa.
The Grey Crowned Crane is known for its elaborate breeding display, which includes dancing, bowing, and jumping. It is a social bird, often found in flocks ranging from 30 to 150 individuals.
The crane's call is a distinctive booming sound, produced with the help of its red gular sac. It also emits a honking noise, quite unlike the trumpeting calls of other crane species.
Breeding seasons are timed with the rains, varying by region. The Grey Crowned Crane builds a large nest in wetland vegetation, where it lays a clutch of 2-5 glossy, dirty-white eggs. Both parents share incubation duties over a period of 28–31 days. Chicks are precocial and fledge in 56–100 days.
An omnivorous bird, the Grey Crowned Crane feeds on plants, seeds, grain, insects, frogs, worms, snakes, small fish, and eggs of aquatic animals. It employs a foot-stamping technique to flush out insects and often follows grazing herbivores to catch disturbed prey.
The Grey Crowned Crane is currently classified as Endangered, with an estimated global population between 58,000 and 77,000 individuals. It faces threats from habitat destruction, overgrazing, and pesticide pollution.
The Grey Crowned Crane holds a place of honor as the national bird of Uganda, gracing the country's flag and coat of arms.
17-2-2020 MONTE CORONA, VALENCIA - GARDEN CARPET MOTH (Xanthorhoe fluctuata)
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The garden carpet (Xanthorhoe fluctuata) is a moth of the family Geometridae. It is an abundant and familiar species across its huge range which covers the whole Palearctic region from Ireland to Japan and including the Near East and North Africa. It was first described by Carl Linnaeus in his 1758 10th edition of Systema Naturae.
It has a wingspan of 27–31 mm (1.1–1.2 in). The wings are greyish white with three irregular black blotches along the costa of the forewing, the largest in the middle. Occasionally, much darker (melanic) forms occur. "Easy to recognize, in spite of its variability. In the typical form the ground colour is dirty whitish and the median band is almost or altogether obsolete in its posterior half.
– ab. ochreata Prout has the ground colour ochreous.
– In ab. neapolisata Mill, the ground colour is much darkened with brown-grey.
– ab. costovata Haw. has the median band much narrowed and somewhat shortened,
– deleta Ckll. is merely a rather extreme development of this and need not be separated.
– ab.immaculata Tutt is a much rarer aberration with the median band entirely wanting.
– ab. abstersata H.-Sch. shows the opposite extreme of development of the band, which is here darkened completely across the wing; distal area also sometimes darkened.
– thules Prout is a dark race from the Shetland Islands. The less extreme forms intergrade into ab. neapolisata, but the name strictly applies to specimens in which both the forewings and hindwing are entirely infuscated so that the markings are almost obliterated.
– sempionaria Rätzer is a small race from the Simplon, of a rather purer white than the type and with the median half-band rather small but rather sharply marked.
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