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Thursday, 9 May 2024

22-4-2024 BANDHAVGARH, INDIA - ORANGE HEADED THRUSH (Geokichla citrina)


The orange-headed thrush is 205–235 milliimetres (8.1–9.25 in) long and weighs 47–60 grammes (1.7–2.1 oz). The adult male of the nominate subspecies of this small thrush has an entirely orange head and underparts, uniformly grey upperparts and wings, and white median and undertail coverts. It has a slate-coloured bill and the legs and feet have brown fronts and pink or yellowish rears.

The female resembles the male but has browner or more olive upperparts and warm brown wings, but some old females are almost identical to the male. The juvenile is dull brown with buff streaks on its back, and a rufous tone to the head and face; it has grey wings. The bill is brownish horn, and the legs and feet are brown.

22-4-2024 BANDHAVGARH, INDIA - INDIAN PEAFOWL (MALE) (Pavo cristatus)


The Indian peafowl (Pavo cristatus) is a brightly-colored bird that lives mainly on the ground. Its loud calls make it easy to detect, and in forest areas often indicates the presence of a predator such as a tiger. The bird is celebrated in Hindu and Greek mythology and is the national bird of India.

The male Indian peafowl (peacock) is brightly colored, with a predominantly blue fan-like crest of spatula-tipped wire-like feathers, and is best known for the long train (tail) made up of elongated upper-tail covert feathers which bear colorful eyespots. These stiff feathers are raised into a fan and quivered in a display during courtship. Despite the length and size of these covert feathers, peacocks are still capable of flight. Females (peahens) lack the train and have a greenish lower neck and duller brown plumage. Downy chicks are pale buff with a dark brown mark on the nape that connects with the eyes. Young males look like the females but their wings are chestnut colored.

22-4-2024 BANDHAVGARH, INDIA - INDIAN ROLLER (Coracias benghalensis)

The Indian roller (Coracias benghalensis) is a colorful bird best known for its aerobatic displays of males during the breeding season. It is often seen perched along roadside trees and wires and is commonly seen in open grassland and scrub forest habitats. The largest population occurs in India, and several states in India have chosen it as their state bird.

The Indian roller is a bulky and broad-winged bird with a large head short neck and legs. The bare skin around the eyes is dull orange, and the legs and feet are yellow-brown. The bill is tinged with brown at the base. The iris is grey-brown. The plumage on the forehead, chin and lores are pinkish buff, the ear coverts are darker red-brown with pale cream or pinkish streaks, while the throat is a dull wine-red with narrow cream streaks. The crown and nape are a darker dull turquoise.

The back and rump are bright turquoise, and the belly is pale blue. The tail coverts are dark purple-blue with turquoise tips. The middle two tail feathers are greyish blue-olive with black shafts, while the surrounding tail feathers are an intense purple-blue with a broad pale blue band and greenish tinge towards the tips. The flight feathers on the wings have the same purple-blue colour of those on the tail, with a similar pale blue band across the most distal five or six primaries. The underwing coverts and axillary feathers are pale blue, while the upperwing coverts are a dull green-blue.


The primary coverts are pale blue with olive or purple-blue tips, and the lesser coverts are purple-blue along the leading edge of the wing. The colours look dull when the bird is perched but become vibrant in flight. Moulting commences anywhere from mid-June to mid-August and concludes between November and the beginning of March. Adult males and females are similar in appearance and there are no seasonal changes. Juvenile birds are duller, paler and browner in colour, with a dull green crown and dull green-blue belly tinged with buff. The bill is brown with a yellowish base rather than black. 

8-5-2024 BONAIRE, VALENCIA - EURASIAN MAGPIE (Pica pica)

The Eurasian magpie is glossy black in color with a metallic green and violet sheen; the belly and scapulars (shoulder feathers) are pure white. The graduated tail is black, glossed with green and reddish-purple. The plumage of the sexes is similar but females are slightly smaller. The young resemble the adults but are at first without much of the gloss on the sooty plumage. The young have the malar region pink and somewhat clear eyes. Their tail is much shorter than the adults.

The range of Eurasian magpies extends across temperate Eurasia from Spain and Ireland in the west to the Kamchatka Peninsula. These birds are normally sedentary and spend winters close to their nesting territories but populations living near the northern limit of their range in Sweden, Finland, and Russia can move south in harsh weather. Eurasian magpies prefer to live in open countryside with scattered trees and usually avoid treeless areas and dense forests. They sometimes breed in suburban areas such as parks and gardens and can often be found close to the center of cities.

8-5-2024 MUNTANYETA DEL SANS, ALBUFERA - GLOSSY IBIS (Plegadis falcinellus)

The Glossy ibis is a medium-sized wading bird. They have long, slender, down-curved bill and magnificent plumage with shiny feathers. Breeding adults have reddish-brown bodies and shiny bottle-green wings. Non-breeders and juveniles have duller bodies. These birds have dark facial skin bordered above and below in blue-gray (non-breeding) to cobalt blue (breeding) and red-brown legs.

The Glossy ibis is the most widespread ibis species; it breeds in warm regions of Europe, Asia, Africa, Australia, and the Atlantic and Caribbean regions of the Americas. This species is migratory; most European birds winter in Africa, and in North America birds from north of the Carolinas winter farther south. Though generally suspected to be a migratory species in India, the Glossy ibis is a resident in western India. Birds from other populations may disperse widely outside the breeding season. Glossy ibises inhabit wetlands with tall dense stands of emergent vegetation such as reeds, papyrus or rushes, and low trees or bushes. They show a preference for marshes at the margins of lakes and rivers but can also be found at lagoons, flood-plains, wet meadows, swamps, reservoirs, sewage ponds, paddies, and irrigated farmland. These birds are less commonly found in coastal locations such as estuaries, deltas, salt marshes, and coastal lagoons.


Glossy ibises are diurnal birds. They are gregarious and nest in colonies. When not nesting, flocks of over 100 individuals may occur on migration, and during the winter or dry seasons, these birds usually forage in small flocks. Glossy ibises often roost communally at night in large flocks, with other species, occasionally in trees which can be some distance from wetland feeding areas. Glossy ibises hunt their prey by sight and touch. When foraging on land, they pick and glean insects or grain but when feeding along the shore, they use their long bills to probe into the substrate or mud. Glossy ibises are able to swim, however, they generally try to avoid deep water. Sounds made by these rather quiet birds include a variety of croaks and grunts; they also make a hoarse 'grrrr' when breeding.

23-4-2024 BANDHAVGARH, INDIA - COMMON GULL BUTTERFLY (Cepora nerissa)


 Cepora nerissa, the common gull, is a small to medium-sized butterfly of the family Pieridae, that is, the yellows and whites, which is native to Sri Lanka, India, China, southeast Asia, and Indonesia.


The species lives in the north-western Himalayas up to 4,000 feet (1,200 m); Nepal; Sikkim; Bhutan; Bengal: central, western, and southern India; Ceylon.

Wednesday, 8 May 2024

23-4-2024 BANDHAVGARH, INDIA - NORTHERN PLAINS GREY LANGUR (Semnopithecus entellus)


The northern plains gray langur (Semnopithecus entellus ), also known as the sacred langur, Bengal sacred langur and Hanuman langur, is a species of primate in the family Cercopithecidae.

The fur of adults is mostly light colored, with darker fur on the back and limbs, and the face, ears, hands and feet are all black. Infants are brown. Body size excluding tail ranges from 45.1 cm (17.8 in) to 78.4 cm (30.9 in) long, and the tail length is between 80.3 cm (31.6 in) and 111.8 cm (44.0 in). Adult males weigh between 16.9 kg (37 lb) and 19.5 kg (43 lb) while adult females weigh between 9.5 kg (21 lb) and 16.1 kg (35 lb).

The range of the northern plains gray langur covers a large portion of India south of the Himalayas south to the Tapti River and the Krishna River.It is thought to have been introduced to western Bangladesh by Hindu pilgrims on the bank of the Jalangi River.

23-4-2024 BANDHAVGARH, INDIA - EURASIAN GRIFFON (Gyps fulvus)


The Griffon vulture (Gyps fulvus) is a large Old World vulture in the bird of prey. It is a rare type of vulture eagle, with impressive size and up to a 3 m (118 in) wingspan, and is Europe’s second-largest bird. It can be seen majestically soaring on thermal currents searching for food in the warmer, rugged parts of countries that surround the Mediterranean.

The Griffon vulture has a distinguishing creamy-white ruff, matching the color of its head and neck. Its body and upper wings are pale brown, which contrasts beautifully with its other dark flight feathers and tail, the contrast being most noticeable in young birds, as their upper-wing feathers are particularly pale.

This species has a very large range, across the Middle East, North Africa, and Europe, from India to Portugal and Spain, most commonly found in countries that border the Mediterranean. The biggest population is in Spain, being more than three-quarters of the European population. These birds are mostly resident but juveniles and immature individuals may migrate far or embark on long-distance movements. Griffon vultures live in areas of mountains, plateaus, shrubland, grassland, and semi-desert, usually in warm climates, but also in harsher conditions of cold, rain, mist, and snow to secure particularly favorable breeding or foraging conditions. They tend to avoid forests, lakes, wetlands, and marine waters. Requiring high cliffs for roosting, they are found in a range of elevations.

23-4-2024 BANDHAVGARH, INDIA - INDIAN BISON (Bos gaurus)

 

The gaur (Bos gaurus; /ɡaʊər/), also known as the Indian bison, is a bovine native to South Asia and Southeast Asia, and has been listed as Vulnerable on the IUCN Red List since 1986. The global population was estimated at a maximum of 21,000 mature individuals in 2016, with the majority of those existing in India.

It is the largest species among the wild cattle and the Bovidae. The domesticated form of the gaur is called gayal (Bos frontalis) or mithun.

Being one of the largest cattle species, the gaur has a massive head, deep body, and solid limbs. The color of their body varies from reddish or brown to black while the limbs are pale colored. Both males and females have upwardly curved horns, growing from the sides of their heads. Their horns have a yellow base and black tip. These animals have a hump on their shoulders, which is especially prominent in adult males. In addition, they have a distinct "dewlap" of skin, stretching from their throat to their forelegs.

8-5-2024 MONTE CORONA, VALENCIA - PAINTED LADY BUTTERFLY (Vanessa cardui)

Vanessa cardui is the most widespread of all butterfly species. It is commonly called the painted lady, or formerly in North America the cosmopolitan.

V. cardui occurs in any temperate zone, including mountains in the tropics. The species is resident only in warmer areas, but migrates in spring, and sometimes again in autumn. It migrates from North Africa and the Mediterranean to Britain and Europe in May and June, occasionally reaching Iceland, and from the Red Sea basin, via Israel and Cyprus, to Turkey in March and April. The occasional autumn migration made by V. cardui is likely for the inspection of resource changes; it consists of a round trip from Europe to Africa.

For decades, naturalists have debated whether the offspring of these immigrants ever make a southwards return migration. Research suggests that British painted ladies do undertake an autumn migration, making 14,500 km (9,000 mi) round trip from tropical Africa to the Arctic Circle in a series of steps by up to six successive generations. The Radar Entomology Unit at Rothamsted Research provided evidence that autumn migrations take place at high altitude, which explains why these migrations are seldom witnessed. In recent years, thanks to the activity of The Worldwide Painted Lady Migration citizen science project, led by the Barcelona-based Institute of Evolutionary Biology (Catalan: Institut de Biologia Evolutiva), the huge range of migration has begun to be revealed. For example, some butterflies migrated from Iceland to the Sahara desert, and even further south.

V. cardui is known for its distinct migratory behaviour. In California, they are usually seen flying from north to north-west. These migrations appear to be partially initiated by heavy winter rains in the desert where rainfall controls the growth of larval food plants. In March 2019, after heavy rain produced an abundance of vegetation in the deserts, Southern California saw these butterflies migrating by the millions across the state.

Similarly, heavier than usual rain during the 2018-2019 winter seems to have been the cause of the extraordinarily large migration observed in Israel at the end of March, estimated at a billion individual butterflies. Painted lady migration patterns are highly erratic and they do not migrate every year. Some evidence suggests that global climatic events, such as el Niño, may affect the migratory behaviour of the painted lady butterflies, causing large-scale migrations. The first noticeable wave of migration in eastern Ukraine was noted in the 20s of April 2019. From May 15, numbers began to grow and it was possible to observe hundreds of this species in the Kharkiv region of Ukraine, including in the city streets of Kharkiv.

Based on experimental data, the painted lady's migration pattern in northern Europe apparently does not follow a strict north-west heading. The range of headings suggests that migrating butterflies may adjust their migration patterns in response to local topographical features and weather, such as strong wind patterns. Laboratory-raised autumn-generation painted lady butterflies were able to distinguish a southern orientation for a return migration path. According to the same laboratory-based study, when butterflies were isolated from the sun, they were unable to orient themselves in a specific direction, opposed to those that did have access to the sun. This suggests that V. cardui requires a direct view of the sky, implying the use of a solar compass to orient its migratory direction and maintain a straight flight path.

8-5-2024 MUNTANYETA DEL SANS, ALBUFERA - COMMON REDSHANK (Tringa totanus)


Common redshanks in breeding plumage are a marbled brown color, slightly lighter below. In winter plumage they become somewhat lighter-toned and less patterned, being rather plain greyish-brown above and whitish below. They have red legs and a black-tipped red bill, and show white up the back and on the wings in flight.


The spotted redshank (T. erythropus ), which breeds in the Arctic, has a longer bill and legs; it is almost entirely black in breeding plumage and very pale in winter. It is not a particularly close relative of the common redshank, but rather belongs to a high-latitude lineage of largish shanks. T. totanus on the other hand is closely related to the marsh sandpiper (T. stagnatilis ), and closer still to the small wood sandpiper (T. glareola ). 


The ancestors of the latter and the common redshank seem to have diverged around the Miocene-Pliocene boundary, about 5–6 million years ago. These three subarctic- to temperate-region species form a group of smallish shanks with have red or yellowish legs, and in breeding plumage are generally a subdued light brown above with some darker mottling, and have somewhat diffuse small brownish spots on the breast and neck.


Like most waders, they feed on small invertebrates.
Redshanks will nest in any wetland, from damp meadows to saltmarsh, often at high densities. They lay 3–5 eggs.


The common redshank is widely distributed and quite plentiful in some regions, and thus not considered a threatened species by the IUCN. It is one of the species to which the Agreement on the Conservation of African-Eurasian Migratory Waterbirds (AEWA) applies.

Tuesday, 7 May 2024

23-4-2024 BANDHAVGARH, INDIA - ORIENTAL MAGPIE ROBIN (Copsychus saularis)

 

The Oriental magpie-robin (Copsychus saularis ) is a small passerine bird that was formerly classed as a member of the thrush family Turdidae, but now considered an Old World flycatcher. These birds are particularly well known for their songs and were once popular as cagebirds.

The Oriental magpie-robin is 19 cm (7.5 in) long, including the long tail, which is usually held cocked upright when hopping on the ground. It is similar in shape to the smaller European robin, but is longer-tailed. The male has black upperparts, head, and throat apart from a white shoulder patch. The underparts and the sides of the long tail are white. Females are greyish black above and greyish white. Young birds have scaly brown upperparts and heads.

Oriental magpie-robins are resident breeders in tropical southern Asia from Nepal, Bangladesh, India, Sri Lanka, and eastern Pakistan, eastern Indonesia, Thailand, south China, Malaysia, and Singapore. They inhabit open woodlands, mangroves, and cultivated areas often close to human habitations.

23-4-2024 BANDHAVGARH, INDIA - WHITE RUMPED MUNIA (Lonchura striata)

The white-rumped munia (Lonchura striata ) or white-rumped mannikin, sometimes called striated finch in aviculture, is a small passerine bird from the family of waxbill "finches" (Estrildidae). These are not close relatives of the true finches (Fringillidae) or true sparrows (Passeridae).

It is native to tropical continental Asia and some adjacent islands, and has been naturalized in some parts of Japan. Its domesticated descendant, the society finch or Bengalese finch, is found worldwide as a pet and a biological model organism.

The white-rumped munia is approximately 10 to 11 cm in length, with a stubby grey bill and a long black pointed tail. The adults are brown above and on the breast, and lighter below; the rump is white. There is some variation between the subspecies, but the sexes are almost impossible to distinguish in all subspecies; males have a more bulky head and bill.


The white-rumped munia is a common resident breeder ranging from the Indian subcontinent to southern China east to Taiwan, and through Southeast Asia south to Sumatra; it frequents open woodland, grassland and scrub, and is well able to adapt to agricultural land use. It is a gregarious bird which feeds mainly on seeds, moving through the undergrowth in groups and sometimes accompanying other birds such as puff-throated babblers (Pellorneum ruficeps ). The nest is a large domed grass structure in a tree, bush or grass into which three to eight white eggs are laid. They are also known to use abandoned nests of Baya weaver. They are often found near water and have been observed feeding on algae. It has been suggested that they obtain protein from their diet of algae often in the species Spirogyra, which grows in paddy fields.

It is a common and widespread bird across its large range, and is thus not considered a threatened species by the IUCN. In fact, it may locally become a nuisance pest of millets and similar grains. Even the Nicobar Islands subspecies with its limited range seems to be able to cope well with human settlement. As it is a drab-coloured and rather reclusive bird inhabiting dense undergrowth, the white-rumped munia is not necessarily conspicuous even where it occurs in considerable numbers.

23-4-2024 BANDHAVGARH, INDIA - INDIAN SPOTTED DOVE (Streptopelia chinensis ssp. suratensis)


The Spotted dove (Spilopelia chinensis) is a small pigeon that is a common across its native range on the Indian subcontinent and in Southeast Asia. These birds are also called the Mountain dove, Pearl-necked dove, Lace-necked dove, and Spotted turtle-dove.

The ground color of this long and slim dove is rosy buff below shading into grey on the head and belly. There is a half collar on the back and sides of the neck made of black feathers that bifurcate and have white spots at the two tips. The median coverts have brown feathers tipped with rufous spots in the Indian and Sri Lankan subspecies which are divided at the tip by a widening grey shaft streak. The wing feathers are dark brown with grey edges. The center of the abdomen and vent are white. The outer tail feathers are tipped in white and become visible when the bird takes off. The male and the female are similar, but juveniles are duller than adults and do not acquire the neck spots until they are mature.

23-4-2024 BANDHAVGARH, INDIA - INDIAN ROBIN (Copsychus fulicatus)

The Indian robin (Copsychus fulicatus ) is a species of bird in the family Muscicapidae.It is widespread in the Indian subcontinent and ranges across Bangladesh, Bhutan, India, Nepal, Pakistan and Sri Lanka. The males of the northern subspecies have brown backs whose extent gradually reduces southwards, with the males of the southern subspecies having all-black backs. They are commonly found in open scrub areas and often seen running along the ground or perching on low thorny shrubs and rocks. The long tail is usually held up and the chestnut undertail coverts and dark body make them easily distinguishable from pied bushchats and Oriental magpie-robins.

The Indian robin is sexually dimorphic in plumage, with the male being mainly black with a white shoulder patch or stripe whose visible extent can vary with posture. The northern populations have the upper plumage brownish, while the southern populations are black above. The males have chestnut undertail coverts and these are visible as the bird usually holds the 6–8 cm long tail raised upright. The females are brownish above, have no white shoulder stripe and are greyish below, with the vent a paler shade of chestnut than the males. Birds of the northern populations are larger than those from southern India or Sri Lanka. Juvenile birds are much like females, but the throat is mottled.

Several subspecies are named based on their plumage differences. The nominate subspecies refers to the population found across southern peninsular India. The subspecies leucopterus is found in Sri Lanka. In the two subspecies cambaiensis of northern and north-western India and erythrura (=erythrurus ) of north-eastern India (south to around Sambalpur), the males have brown backs. The subspecies intermedius includes birds in appearance between cambaiensis, erythrura and fulicata, the last one found in central India and parts of the Deccan region. The subspecies munda was named based on a specimen from the Punjab, but it is now considered synonymous with cambaiensis. Older classifications treat the population in southern India as the subspecies ptymatura while considering the type locality as Sri Lanka, although it has subsequently been restricted to Pondicherry.

Local names recorded by Jerdon include Nalanchi (Telugu), Wannatikuruvi (Tamil, Washerman bird ), Dayaal (Marathi) Kalchuri (Hindi) and Paan kiriththaa (Sinhala). The former genus name indicates that it looks similar to Saxicola, the genus of the pied bushchat, a bird often found in similar habitats.

This bird is found in open stony, grassy and scrub forest habitats. They are mainly found in dry habitats and are mostly absent from the thicker forest regions and high rainfall areas. All populations are resident and non-migratory. The species is often found close to human habitation and will frequently perch on rooftops.

The species was introduced into the New York region, but did not become established there. A vagrant or escape has been noted from the Maldives.

The breeding season is December to September, but varies according to region and usually begins with the first rains. Peak breeding in northern India is in June and is earlier in Southern India. In Sri Lanka, breeding is in March to June and August to September. Males sing during this season and display by lowering and spreading their tail feathers and strutting around the female, displaying their sides and fluffing their undertail coverts. The songs of males have variants for inviting mates and for deterring other males. Males will drive away other males and patrol their territory by flying with slow wing beats from perch to perch. They may sometimes peck at their reflections. An aggressive display involves fluffing up the feathers and holding the bill high.


 Nests are built between rocks, in holes in walls or in a tree hollow and are lined with animal hair. It has been noted that many of them are also lined with pieces of snakeskin sloughs. The eggs are of regular oval form, but many are elongated and a few pointed. They have a fair amount of gloss. The ground colour is white, often tinged with faint green or pink which is rather closely spotted, speckled, streaked, or mottled with rich reddish- or umber-brown and brownish-yellow with some underlying lavender. The markings are denser at the larger end of the egg, where they form an irregular cap. Some eggs are blotched with dark reddish-brown at the large end. They are about 0.76–0.84 inches (1.9–2.1 cm) long and 0.55–0.62 inches (1.4–1.6 cm) wide. Three to four eggs is the usual clutch. An abnormal clutch of seven has been noted, although none of the eggs hatched at this nest. Only the female incubates the eggs, which then hatch in about 10–12 days. The chicks have black down. Both males and females feed the young, the male sometimes passing food to the female who, in turn, feeds the young. Nestlings may feign dead (thanatosis) when handled and may be preyed on by the rufous treepie. The same nest site may be reused in subsequent years.

An old anecdotal record of these birds laying their eggs in the nests of Turdoides babblers has not been supported by later observers. Laboratory studies have demonstrated cyclic changes in the melanin pigmentation of the tissue surrounding the testes. The dark pigmentation is lost during the breeding season and regained later.

Monday, 6 May 2024

24-4-24 KANHA, INDIA - ORIENTAL MAGPIE ROBIN (Copsychus saularis)

The Oriental magpie-robin (Copsychus saularis ) is a small passerine bird that was formerly classed as a member of the thrush family Turdidae, but now considered an Old World flycatcher. These birds are particularly well known for their songs and were once popular as cagebirds.

The Oriental magpie-robin is 19 cm (7.5 in) long, including the long tail, which is usually held cocked upright when hopping on the ground. It is similar in shape to the smaller European robin, but is longer-tailed. The male has black upperparts, head, and throat apart from a white shoulder patch. The underparts and the sides of the long tail are white. Females are greyish black above and greyish white. Young birds have scaly brown upperparts and heads.

Oriental magpie-robins are resident breeders in tropical southern Asia from Nepal, Bangladesh, India, Sri Lanka, and eastern Pakistan, eastern Indonesia, Thailand, south China, Malaysia, and Singapore. They inhabit open woodlands, mangroves, and cultivated areas often close to human habitations.

24-4-24 BANDHAVGARH, INDIA - YELLOW THROATED SPARROW (Gymnoris xanthocollis)

The yellow-throated sparrow or chestnut-shouldered petronia (Gymnoris xanthocollis ) is a species of sparrow found in southern Asia.

It has a finer bill than typical sparrows of the genus Passer and unlike them has no streaks on the plumage. The white double wing bar on the shoulder is diagnostic on the otherwise dull grey-brown sparrow. Males have a chestnut shoulder patch which can sometimes be hard to see. They also have a pale yellow spot on the throat in fresh plumage. Females are duller and lack the chestnut shoulder patch. The yellow spot is much reduced or lacking in females.

This species is tree-loving although sometimes seen on wires and on the ground, where it has a hopping gait. The usual call is a chirrup but the song is distinctive and repetitive chilp chalp cholp. It has a bounding flight and dips deeply before rising up.

The chestnut-shouldered petronia is found from Turkey into Iran, Afghanistan, Pakistan, India, Bangladesh and as a vagrant in Sri Lanka and possibly parts of Myanmar. It is found in forest, gardens and open scrub habitats.

24-4-24 KANHA, INDIA - GARDEN ORBWEAVER SPIDER (Genus Argiope)

 

The genus Argiope includes rather large spiders that often have a strikingly coloured abdomen. These spiders are distributed throughout the world. Most countries in tropical or temperate climates host one or more species that are similar in appearance. The etymology of Argiope is from a Latin word argentum meaning silver. The carapace of Argiope species is typically covered in silvery hairs, and when crawling in the sun, they reflect it in a way that gives them a metallic, white appearance.

24-4-24 BANDHAVGARH, INDIA - LARGE BILLED CROW (Corvus macrorhynchos)


The large-billed crow (Corvus macrorhynchos ), formerly referred to widely as the jungle crow, is a widespread Asian species of crow. It is very adaptable and is able to survive on a wide range of food sources, making it capable of colonizing new areas, due to which it is often considered a nuisance, especially on islands. It has a large bill, which is the source of its scientific name macrorhynchos (Ancient Greek for "large beak") and it is sometimes known by the common name thick-billed crow. It can also be mistaken for a common raven. Johann Georg Wagler first described the species from a holotype obtained from Java in the year 1827. The eastern jungle crow and Indian jungle crow were once considered conspecific and together called the jungle crow.

The overall size (length: 46–59 cm; 18–23 in.). Wingspan is (100-130 cm; 39-51  in.). Body proportions vary regionally. In the far northeast in Japan, the Kuriles and the Sakhalin peninsula, it is somewhat larger than the carrion crow. All taxa have a relatively long bill with the upper one quite thick and arched, making it look heavy and almost raven-like. Generally, all taxa have dark greyish plumage from the back of the head, neck, shoulders and lower body. Their wings, tail, face, and throat are glossy black. The depth of the grey shading varies across its range.

24-4-24 BANDHAVGARH, INDIA - CHITAL (SPOTTED DEER) (Axis axis)


The Axis deer (Axis axis) is a deer species native to the Indian subcontinent. It was first described and given a binomial name by German naturalist Johann Christian Polycarp Erxleben in 1777.

The Axis deer is a beautiful mammal with a spotted body and short tail. Both males and females have markings on their bodies; the markings are white, running in rows along the length of their bodies. The body of Axis deer is bright golden brown in color while the head is a bit lighter shade of the same color. Around their eyes, they have stripes of fur that are paler in color. Males have black spots on their faces and three tines on each of their magnificent antlers. These deer have a dark stripe, running along the length of their back and bordered by a row of spots. The outer parts of their legs are light brown in color while the underparts can be both white and creamy. The Axis deer has a white spot on its throat, which is more noticeable in males. In addition, the tail of the Axis deer has a white underpart.

24-4-24 BANDHAVGARH, INDIA - ORANGE HEADED THRUSH (Geokichla citrina)

 

The orange-headed thrush is 205–235 milliimetres (8.1–9.25 in) long and weighs 47–60 grammes (1.7–2.1 oz). The adult male of the nominate subspecies of this small thrush has an entirely orange head and underparts, uniformly grey upperparts and wings, and white median and undertail coverts. It has a slate-coloured bill and the legs and feet have brown fronts and pink or yellowish rears.

The female resembles the male but has browner or more olive upperparts and warm brown wings, but some old females are almost identical to the male. The juvenile is dull brown with buff streaks on its back, and a rufous tone to the head and face; it has grey wings. The bill is brownish horn, and the legs and feet are brown.

This species' orange and grey plumage is very distinctive, and it is unlikely to be confused with any other species. Differences between the subspecies, as described above, can be quite striking, as with the strong head pattern on G. c. cyanota, but may be less obvious variations in plumage tone, or whether there is white on the folded wing. As with many other thrushes, all forms of this species shows a distinctive underwing pattern, with a strong white band.

The orange-headed thrush breeds in much of the Indian Subcontinent, including Bangladesh, India and Sri Lanka, and through Southeast Asia to Java and southern China. Its habitat is moist broadleaved evergreen woodlands, with a medium-density undergrowth of bushes and ferns, but it also utilises bamboo forests for secondary growth. G. c. cyanota also occurs in large gardens and orchards.

25-4-2024 KANHA TIGER PARK, INDIA - WHITE RUMPED VULTURE (Gyps bengalensis)

The white-rumped vulture (Gyps bengalensis) is an Old World vulture native to South and Southeast Asia. It has been listed as Critically Endangered on the IUCN Red List since 2000, as the population severely declined. White-rumped vultures die of kidney failure caused by diclofenac poisoning. In the 1980s, the global population was estimated at several million individuals, and it was thought to be "the most abundant large bird of prey in the world". As of 2021, the global population was estimated at less than 6,000 mature individuals.

It is closely related to the European griffon vulture (Gyps fulvus). At one time it was believed to be closer to the white-backed vulture of Africa and was known as the Oriental white-backed vulture.

6-5-2024 POTRIES, VALENCIA - YELLOW HORNED POPPY (Glaucium flavum)

It is native to temperate regions of North Africa, Europe and parts of Western Asia.

It is found in North Africa, within Macaronesia, Canary Islands, Algeria, Libya, Tunisia and Morocco. Within Western Asia it is found in the Caucasus, Georgia, Cyprus, Egypt (in the Sinai), Lebanon, Syria and Turkey. In eastern Europe, it is found within Ukraine. In middle Europe, it is in Belgium, Germany, Netherlands and Slovakia. In northern Europe, in Denmark, Ireland, Norway, Sweden and United Kingdom. In south-eastern Europe, within Albania, Bosnia and Herzegovina, Bulgaria, Croatia, Greece, Italy, Montenegro, Sicily and Malta, North Macedonia, Romania, and Slovenia. Also in southwestern Europe, it is found in France, Portugal and Spain.


Glaucine is the main alkaloid component in Glaucium flavum. Glaucine has bronchodilator and antiinflammatory effects, acting as a PDE4 inhibitor and calcium channel blocker, and is used medically as an antitussive in some countries. Glaucine may produce side effects such as sedation, fatigue, and a hallucinogenic effect characterised by colourful visual images, and as a recreational drug. For a detailed bibliography on glaucine and Glaucium flavum see: National Agricultural Library. (Glaucium flavum entry)

In the past, it was known in Hampshire, UK as 'squatmore', and the roots were used to treat bruises. Also pains in the breast, stomach and intestines.

6-5-2024 POTRIES, VALENCIA - PAINTED LADY BUTTERFLY (Vanessa cardui)


Vanessa cardui is the most widespread of all butterfly species. It is commonly called the painted lady, or formerly in North America the cosmopolitan.

V. cardui occurs in any temperate zone, including mountains in the tropics. The species is resident only in warmer areas, but migrates in spring, and sometimes again in autumn. It migrates from North Africa and the Mediterranean to Britain and Europe in May and June, occasionally reaching Iceland, and from the Red Sea basin, via Israel and Cyprus, to Turkey in March and April. The occasional autumn migration made by V. cardui is likely for the inspection of resource changes; it consists of a round trip from Europe to Africa.

For decades, naturalists have debated whether the offspring of these immigrants ever make a southwards return migration. Research suggests that British painted ladies do undertake an autumn migration, making 14,500 km (9,000 mi) round trip from tropical Africa to the Arctic Circle in a series of steps by up to six successive generations. The Radar Entomology Unit at Rothamsted Research provided evidence that autumn migrations take place at high altitude, which explains why these migrations are seldom witnessed. In recent years, thanks to the activity of The Worldwide Painted Lady Migration citizen science project, led by the Barcelona-based Institute of Evolutionary Biology (Catalan: Institut de Biologia Evolutiva), the huge range of migration has begun to be revealed. For example, some butterflies migrated from Iceland to the Sahara desert, and even further south.

V. cardui is known for its distinct migratory behaviour. In California, they are usually seen flying from north to north-west. These migrations appear to be partially initiated by heavy winter rains in the desert where rainfall controls the growth of larval food plants. In March 2019, after heavy rain produced an abundance of vegetation in the deserts, Southern California saw these butterflies migrating by the millions across the state.

Similarly, heavier than usual rain during the 2018-2019 winter seems to have been the cause of the extraordinarily large migration observed in Israel at the end of March, estimated at a billion individual butterflies. Painted lady migration patterns are highly erratic and they do not migrate every year. Some evidence suggests that global climatic events, such as el Niño, may affect the migratory behaviour of the painted lady butterflies, causing large-scale migrations. The first noticeable wave of migration in eastern Ukraine was noted in the 20s of April 2019. From May 15, numbers began to grow and it was possible to observe hundreds of this species in the Kharkiv region of Ukraine, including in the city streets of Kharkiv.

Based on experimental data, the painted lady's migration pattern in northern Europe apparently does not follow a strict north-west heading. The range of headings suggests that migrating butterflies may adjust their migration patterns in response to local topographical features and weather, such as strong wind patterns. Laboratory-raised autumn-generation painted lady butterflies were able to distinguish a southern orientation for a return migration path. According to the same laboratory-based study, when butterflies were isolated from the sun, they were unable to orient themselves in a specific direction, opposed to those that did have access to the sun. This suggests that V. cardui requires a direct view of the sky, implying the use of a solar compass to orient its migratory direction and maintain a straight flight path.

Sunday, 5 May 2024

25-4-2024 KANHA TIGER PARK, INDIA - GUTTA BUG (Physopelta gutta)



 

26-4-2024 KANHA,INDIA - NORTHERN PLAINS GREY LANGUR (Semnopithecus entellus)

The northern plains gray langur (Semnopithecus entellus ), also known as the sacred langur, Bengal sacred langur and Hanuman langur, is a species of primate in the family Cercopithecidae.

The fur of adults is mostly light colored, with darker fur on the back and limbs, and the face, ears, hands and feet are all black. Infants are brown. Body size excluding tail ranges from 45.1 cm (17.8 in) to 78.4 cm (30.9 in) long, and the tail length is between 80.3 cm (31.6 in) and 111.8 cm (44.0 in). Adult males weigh between 16.9 kg (37 lb) and 19.5 kg (43 lb) while adult females weigh between 9.5 kg (21 lb) and 16.1 kg (35 lb).

The range of the northern plains gray langur covers a large portion of India south of the Himalayas south to the Tapti River and the Krishna River.It is thought to have been introduced to western Bangladesh by Hindu pilgrims on the bank of the Jalangi River.

The northern plains gray langur is diurnal, and is both terrestrial and arboreal. Its natural habitats are subtropical or tropical dry forests and subtropical or tropical dry shrubland. Females groom members of both sexes but males do not groom others.


The northern plains gray langur can live in several different types of groups. It can live in groups of multiple males and females, one male and multiple females or multiple males with no females, and males can also live alone without a group. Single male groups are most common. Group size can exceed 100 monkeys. Upon reaching maturity, males typically emigrate from their natal group while females typically remain. Young adult females are typically dominant over older females. When a new male takes over a group it may engage in infanticide of young fathered by the previous male or males, but this is less common when the takeover occurs slowly over several months.

The northern plains gray langur eats primarily fruits and leaves. It is able to survive on mature leaves, which is a key to its ability to survive throughout the dry season. It also eats seeds, flowers, buds, bark and insects, including caterpillars. It is also fed fruits and vegetables by humans, and some groups get a substantial portion of their diets from food provided by temples and from raiding crops.

27-4-2024 KANHA, INDIA - NORTHERN RED MUNTJAC (Muntiacus vaginalis)

The Northern red muntjac (Muntiacus vaginalis)[1][2] is a species of muntjac. It is found in numerous countries of south-central and southeast Asia.

It was recently found distinct from the southern red muntjac (previously typically known as Indian muntjac) and includes all the population previously attributed to M. muntjak that are outside of Sunda and perhaps of Malaysia.

The subspecies bancanus, montanus, muntjak, nainggolani, peninsulae, pleiharicus, robinsoni, rubidus stays in the southern red muntjac (M. muntjak), while annamensis, aureus, curvostylis, grandicornis, nigripes are now attributed to the northern red muntjac (M. vaginalis).

The northern red muntjac occurs in twelve countries of south-central and south-east Asia including Pakistan, Bhutan, Myanmar, Nepal, India, Sri Lanka, Bangladesh, China, Cambodia, Laos, Thailand, and Vietnam.

It is also present in Hong Kong. Its presence in Malaysia is uncertain.

It is listed as "Least Concern" by the IUCN due to its large distribution, presence in protected areas and resilience to hunting and habitat change.

Due to the degradation of habitat and hunting for their body parts and meat, Muntjac populations are drastically decreasing throughout their range.