Saturday, 12 September 2020
Friday, 11 September 2020
9-9-2020 BIOPARC, VALENCIA - AFRICAN BUSH ELEPHANT (Loxodonta africana)
The African bush elephant (Loxodonta africana), also known as the African savanna elephant, is one of two extant African elephant species and one of three extant elephant species. It is the largest living terrestrial animal, with bulls reaching a shoulder height of up to 3.96 m (13 ft 0 in) and a body mass of up to 10.4 t (11.5 short tons).
It is distributed across 37 African countries and inhabits forests, grasslands and woodlands, wetlands and agricultural land. Since 2021, it has been listed as Endangered on the IUCN Red List. It is threatened foremost by habitat destruction, and in parts of its range also by poaching for meat and ivory.
It is a social mammal, travelling in herds composed of cows and their offspring. Adult bulls usually live alone or in small bachelor groups. It is a herbivore, feeding on grasses, creepers, herbs, leaves, and bark. The menstrual cycle lasts three to four months, and females are pregnant for 22 months, the longest gestation period of any mammal.
9-9-2020 BIOPARC, VALENCIA - COMMON WATERBUCK (MALE) (Kobus ellipsiprymnus ssp. ellipsiprymnus)
The waterbuck (Kobus ellipsiprymnus) is a large antelope found widely in sub-Saharan Africa. It is in the genus Kobus of the family Bovidae. It was first described by Irish naturalist William Ogilby in 1833. Its 13 subspecies are grouped under two varieties: the common or ellipsiprymnus waterbuck and the defassa waterbuck. Their coat colour varies from brown to grey. The long, spiral horns, present only on males, curve backward, then forward, and are 55–99 cm (22–39 in) long.
Waterbucks are rather sedentary in nature. As gregarious animals, they may form herds consisting of six to thirty individuals. These groups are either nursery herds with females and their offspring or bachelor herds. Males start showing territorial behaviour from the age of five years, but are most dominant from six to nine.
The waterbuck cannot tolerate dehydration in hot weather, and thus inhabits areas close to sources of water. Predominantly a grazer, the waterbuck is mostly found on grassland. In equatorial regions, breeding takes place throughout the year, but births are at their peak in the rainy season. The gestational period lasts 7–8 months, followed by the birth of a single calf.
Waterbucks inhabit scrub and savanna areas along rivers, lakes, and valleys. Due to their requirement for grasslands and water, waterbucks have a sparse ecotone distribution. The IUCN lists the waterbuck as being of least concern. More specifically, the common waterbuck is listed as of least concern, while the defassa waterbuck is near threatened. The population trend for both is downwards, especially that of the defassa, with large populations being eliminated from certain habitats because of poaching and human disturbance.
9-9-2020 BIOPARC, VALENCIA - SADDLE BILLED STORK (Ephippiorhynchus senegalensis)
The saddle-billed stork or saddlebill (Ephippiorhynchus senegalensis) is a large wading bird in the stork family, Ciconiidae. It is a widespread species which is a resident breeder in sub-Saharan Africa from Sudan, Ethiopia and Kenya south to South Africa, and in The Gambia, Senegal, Côte d'Ivoire and Chad in west Africa. It is considered endangered in South Africa.
It is a close relative of the widespread Asian and Australian black-necked stork, the only other member of the genus Ephippiorhynchus.
The saddle-billed stork is a huge bird that regularly attains a height of 145 to 150 cm (4 ft 9 in to 4 ft 11 in), a length of 142 cm (4 ft 8 in) and a 2.4 to 2.7 m (7 ft 10 in to 8 ft 10 in) wingspan. While heights published have been in the aforementioned narrow range, reportedly adult saddle-billed storks in captivity can attain a height of up to 150 to 180 cm (4 ft 11 in to 5 ft 11 in).
The male is larger and heavier than the female, with a range of 5.1–7.52 kg (11.2–16.6 lb), with a mean mass of 6.38 kg (14.1 lb). The female is usually between 5 and 6.84 kg (11.0 and 15.1 lb), with a mean mass of 5.95 kg (13.1 lb). Among the large storks, the saddle-billed broadly overlap in size with the two larger Leptoptilos and the Jabiru stork but possesses a longer, more slender neck and slightly longer legs than the other largest storks, so the saddle-billed is likely to be the tallest extant species of the family. Its extremely long legs measure up to 36.5 cm (14.4 in)) in tarsus length. The long bill measures from 27.3 to 36 cm (10.7 to 14.2 in). The sexes can be readily distinguished by the golden yellow irises of the female and the brown irises and dangling yellow wattles of the male. It is therefore one of the few storks to display sexual dimorphism in colour.
It is spectacularly plumaged; both the female and male appear identical when perched but the female shows much more white in the primaries in flight. The head, neck, back, wings, and tail are iridescent black, with the rest of the body and the primary flight feathers being white. Juveniles are browner grey in plumage. The massive bill is red with a black band and a yellow frontal shield (the "saddle"). The legs and feet are black with pink hocks. On the chest is a bare red patch of skin, whose colour darkens during breeding season.
The saddle-billed stork is silent except for bill-clattering at the nest. Like most storks, it flies with the neck outstretched, not retracted like a heron; in flight, the large heavy bill is kept drooping somewhat below belly height, giving it a distinctive appearance. This makes it easily recognizable, even if seen from a distance. It has been suggested that due to the large size and unusual appearance in flight, this species is the basis for the "big bird" and kongamato cryptids.
At the continental scale, the saddle-billed stork prefers protected areas that have a higher extent of open water compared to areas without other storks. Some of these trends may, however, be due to a bias in coverage by ornithologists of safer areas such as national parks and protected swamps that afford easier accessibility and comforts.
The saddle-billed stork is a solitary nester, building massive nest platforms that are used repeatedly in successive seasons. Unlike many other storks, this species is often seen in pairs in the nonbreeding season suggesting a lifelong pair bond. It breeds in forested wetlands and other floodplains in tropical lowlands. It builds a large, deep stick nest in a tree, laying one to five (typically two or three) white eggs weighing about 146 g (5.1 oz) each. The incubation period is 30–35 days, with another 70–100 days before the chicks fledge, with the young often remaining in the parents' territory until the next breeding season.
11-9-2020 TERUEL, VALENCIA - EURASIAN DOTTERAL (Eudromias morinellus)
The Eurasian dotterel (Charadrius morinellus), also known in Europe as just dotterel, is a small wader in the plover family of birds.
The dotterel is a brown-and-black-streaked bird with a broad, white eye stripe and an orange-red chest band when in breeding plumage. The female is more colourful than the male. The bird is tame and unsuspecting, and the term "dotterel" has been applied contemptuously to mean an old fool.
The Eurasian dotterel is a migratory species, breeding in Northern Europe and Eurosiberia and migrating south to North Africa and the Middle East in the winter. It nests in a bare scrape on the ground and lays two to four eggs. The male does the incubation and rears the chicks, with the female having gone off to find another male and lay another clutch of eggs. It is a common bird with a wide range and the International Union for Conservation of Nature has rated it as being of "least concern".
Thursday, 10 September 2020
9-9-2020 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.
9-9-2020 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.
9-9-2020 BIOPARC, VALENCIA - CHIMPANZEE (JUVENILE) (Pan troglodytes)
The chimpanzee (/ˌtʃɪmpænˈziː/; Pan troglodytes), also 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.
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). 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 genome contains coding regions for 18,759 proteins which is within ten percent compared to 20,383 proteins for humans.
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 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 experimental attempts have been made to attempt teaching languages such as American Sign Language to chimpanzees, which have been challenged by academics such as Noam Chomsky.
9-9-2020 BIOPARC, VALENCIA - EUROPEAN MOORHEN (JUVENILE) (Gallinula chloropus)
The common moorhen, known scientifically as Gallinula chloropus, is a bird of the rail family, Rallidae. It is a bird of striking appearance, with a mix of black and brown plumage, a white under-tail, and white streaks along its flanks. Its legs are a vibrant yellow, and it sports a distinctive red frontal shield. The bill is a matching red with a yellow tip. Juveniles are a duller brown and do not have the red shield.
Adult moorhens can be identified by their red frontal shield, which has a rounded top and fairly parallel sides. The tailward margin of the red unfeathered area is smoothly curved. Their yellow legs and the combination of their black and brown plumage with white markings make them quite distinctive. The young are browner and lack the red shield, making them less conspicuous.
The common moorhen is found in a variety of wetland habitats, including marshes, ponds, canals, and lakes that are rich in vegetation. It is also known to inhabit city parks with suitable water bodies.
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