Bank myna | |
---|---|
Uttar Pradesh, India | |
Scientific classification | |
Domain: | Eukaryota |
Kingdom: | Animalia |
Phylum: | Chordata |
Class: | Aves |
Order: | Passeriformes |
Family: | Sturnidae |
Genus: | Acridotheres |
Species: | A. ginginianus |
Binomial name | |
Acridotheres ginginianus (Latham, 1790) | |
The bank myna (Acridotheres ginginianus) is a myna found in the northern parts of South Asia. It is smaller but similar in colouration to the common myna, only differing in having brick-red naked skin behind the eyes instead of yellow. It is greyer on the underside and in this and in the presence of a slight tuft of feathers bears some resemblance to the jungle myna. They are found in flocks on the plains of northern and central India, often within towns and cities. Their range appears to be extending southwards into India. The name is derived from their habit of nesting almost exclusively in the earthen banks of rivers, where they excavate burrows and breed in large colonies.
The head is black on the crown and sides and the upper plumage is slaty grey while the underside is lighter grey with pale pink plumage towards the centre of the abdomen. The wing is black but has a wing patch at the base of the primaries and the tips of the outer tail feathers are pale pinkish buff. The naked skin behind the eye is brick red, the legs are yellow while the iris is deep red. The sexes are indistinguishable in the field. [2] Young birds have a browner head and neck. [3] [4]
The species is evolutionarily closest to the common myna. [5]
The native range of the bank myna is almost restricted to the Indian subcontinent from the Indus valley in the West to the Gangetic delta in the East and south of the lower foothills of the Himalayas, only rarely being found in sheltered valleys. They are found mainly in the vicinity of open water and their usual habitat is cultivated farmland and open country, but flocks will often live within cities, in markets and railway stations. [6] They make use of food scraps disposed by humans, even following catering vehicles at airports to standing aircraft. [7]
The distribution was formerly noted to be restricted north, roughly, of a line between Bombay and Balasore in Orissa, but the species may be expanding its range. They are also common in Pakistan in the districts of Sind and Punjab.[ citation needed ] A specimen from Kandahar was earlier considered the westernmost record of a vagrant, but the birds have since established themselves in the region. [8] Although mainly resident, they make movements in response to food and weather. [6] [9] The species name of the bird is based on the name given by Latham from a description by Pierre Sonnerat who described Le petit Martin de Gingi in 1782, [10] referring to Gingee near Pondicherry in southern India. [11] Thomas C. Jerdon noted in 1863 that the species did not occur in southern India however the species was recorded in the region in 1914 at Vandalur near Madras. [12] [13] Records from further south in India are, however, increasing since 2000. [14] [15] Breeding colonies have been found in Assam. [16] [17] [18] [19] [20]
These mynas have been introduced into Kuwait, where they have become established in the wild. [21] Flocks have also been found in the Maldives, Taiwan and Japan. [22] [23] [24]
Bank mynas are gregarious foraging in flocks, breeding colonially and roosting together in trees. They perch on livestock and live in crowded towns allowing close approach, often picking up scraps in markets and dumps. [6] They are vociferous and use a wide range of calls that include clucks, croaks, screeches, whistles and warbling elements. [8]
Bank mynas feed on grain, insects and fruits. Like the common myna, they sometimes follow grazing animals picking up disturbed insects or even ticks on the animals. They feed on ripening crops such as those of sorghum, grape and pearl millet. They feed on a variety of insects, including some that are crop pests such as Achaea janata whose caterpillars feed on castor. [25]
Bank mynas have a nesting season from April to July or August, most birds breeding in May and June. The nest is always built in earth walls, on the banks of rivers, embankments or the sides of open wells. They will sometimes make use of holes in brick walls. Nests have also been recorded between stacked bales of sugarcane stalks. [26] They excavate the nest hole, the egg chamber sometimes 4 to 7 feet from the entrance. The nest is lined with grass, feathers and sometimes snake sloughs. [27] About four of five pale sky blue or greenish-blue eggs is the usual clutch. [2] Two broods may be raised in the same season. The eggs hatch after about 13 to 14 days. Nestlings open their eyes after about 5 days and fledge in about 21 days. About 38% of the eggs hatched into young that fledged in one study. [28]
A species of coccidian parasite, Isospora ginginiana, and several species of nematode (Oxyspirura, Choanotaenia, Hymenolepis sp.) have been described from the species. [29] [30] [31]
The lesser whistling duck, also known as Indian whistling duck or lesser whistling teal, is a species of whistling duck that breeds in the Indian subcontinent and Southeast Asia. They are nocturnal feeders that during the day may be found in flocks around lakes and wet paddy fields. They can perch on trees and sometimes build their nest in the hollow of a tree. This brown and long-necked duck has broad wings that are visible in flight and produces a loud two-note wheezy call. It has a chestnut rump, differentiating it from its larger relative, the fulvous whistling duck, which has a creamy white rump.
The western reef heron, also called the western reef egret, is a medium-sized heron found in southern Europe, Africa and parts of Asia. It has a mainly coastal distribution and occurs in several plumage forms: a slaty-grey plumage in which it can only be confused with the rather uncommon dark morph of the Little egret ; a white form which can look very similar to the little egret although the bill tends to be paler and larger and the black form with white throat E. g. gularis of West Africa. There are also differences in size, structure and foraging behaviour. There have been suggestions that the species hybridizes with the Little Egret, and based on this, some authors treat schistacea and gularis as subspecies of Egretta garzetta. Works that consider the Western Reef Heron as a valid species include the nominate gularis and schistacea as subspecies.
The Indian pond heron or paddybird is a small heron. It is of Old World origins, breeding in southern Iran and east to the Indian subcontinent, Burma, and Sri Lanka. They are widespread and common but can be easily missed when they stalk prey at the edge of small water-bodies or even when they roost close to human habitations.
The yellow-wattled lapwing is a lapwing that is endemic to the Indian Subcontinent. It is found mainly on the dry plains of peninsular India and has a sharp call and is capable of fast flight. Although they do not migrate, they are known to make seasonal movements in response to rains. They are dull grey brown with a black cap, yellow legs and a triangular wattle at the base of the beak. Like other lapwings and plovers, they are ground birds and their nest is a mere collection of tiny pebbles within which their well camouflaged eggs are laid. The chicks are nidifugous, leaving the nest shortly after hatching and following their parents to forage for food.
The Malabar whistling thrush is a whistling thrush in the family Muscicapidae. The bird has been called whistling schoolboy for the whistling calls that they make at dawn that have a very human quality. The species is a resident in the Western Ghats and associated hills of peninsular India including central India and parts of the Eastern Ghats.
The black-rumped flameback, also known as the lesser golden-backed woodpecker or lesser goldenback, is a woodpecker found widely distributed in the Indian subcontinent. It is one of the few woodpeckers that are seen in urban areas. It has a characteristic rattling-whinnying call and an undulating flight. It is the only golden-backed woodpecker with a black throat and a black rump.
The purple sunbird is a small bird in the sunbird family found mainly in South and Southeast Asia but extending west into parts of the Arabian peninsula. Like other sunbirds they feed mainly on nectar, although they will also take insects, especially when feeding young. They have a fast and direct flight and can take nectar by hovering like a hummingbird but often perch at the base of flowers. The males can appear all black in harsh sunlight but the purple iridescence is visible on closer observation or under good light conditions. Females are olive above and yellowish below.
The purple-rumped sunbird is a sunbird endemic to the Indian Subcontinent. Like other sunbirds, they are small in size, feeding mainly on nectar but sometimes take insects, particularly when feeding young. They can hover for short durations but usually perch to lap nectar from flowers. They build a hanging pouch nest made up of cobwebs, lichens and plant material. Males are contrastingly coloured but females are olive above and yellow to buff below. Males are easily distinguished from the purple sunbird by the light coloured underside while females can be told apart from males by their whitish throats.
The red-vented bulbul is a member of the bulbul family of passerines. It is a resident breeder across the Indian subcontinent, including Sri Lanka extending east to Burma and parts of Bhutan and Nepal. It has been introduced in many other parts of the world and has established itself in New Zealand, Argentina, Tonga and Fiji, as well as parts of Samoa, Australia, USA and Cook Islands. It is included in the list of the world's 100 worst invasive alien species.
The jungle myna is a myna, a member of the starling family. It is found patchily distributed across much of the mainland of the Indian Subcontinent but absent in the arid zones of India. It is easily recognized by the tuft of feathers on its forehead that form a frontal crest, a feature also found in the closely related Javan myna and the pale-bellied myna which were treated as a subspecies in the past. The eyes are pale, yellow or blue depending on the population and the base of the orange-yellow bill is dark. It has also been introduced either intentionally or accidentally into many other parts of the world including Fiji, Taiwan, the Andaman Islands, and parts of Japan. The species has also spread out on its own to some islands in the Pacific.
The brahminy starling or brahminy myna is a member of the starling family of birds. It is usually seen in pairs or small flocks in open habitats on the plains of the Indian subcontinent.
The Indian robin is a species of passarine 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 silverbill or white-throated munia is a small passerine bird found in the Indian Subcontinent and adjoining regions that was formerly considered to include the closely related African silverbill. This estrildid finch is a common resident breeding bird in the drier regions of the Middle East and the Indian Subcontinent. It has also been introduced into many other parts of the world and has become established in some areas. They forage in small flocks in grassland and scrub habitats.
The Indian pied myna is a species of starling found in the Indian subcontinent. It is usually found in small groups mainly on the plains and low foothills. It is often seen within cities and villages although it is not as bold as the common myna. It produces a range of calls made up of liquid notes.
The Malabar barbet is an Asian barbet native to the Western Ghats in India. It was formerly treated as a race of the crimson-fronted barbet. It overlaps in some places with the range of the coppersmith barbet and has a similar but more rapid call.
The black baza is a small bird of prey found in the forests of Northeast India, the eastern Himalayas, China and Southeast Asia. Many populations are migratory, including those in the Indian region, which winter in the south of the Peninsula and Sri Lanka. Black bazas have short, stout legs and feet with strong talons, and a prominent crest. They are found in dense forest, often in small groups, and can often be found perched on bare branches of tall trees rising above the forest canopy.
The baya weaver is a weaverbird found across the Indian Subcontinent and Southeast Asia. Flocks of these birds are found in grasslands, cultivated areas, scrub and secondary growth and they are best known for their hanging retort shaped nests woven from leaves. These nest colonies are usually found on thorny trees or palm fronds and the nests are often built near water or hanging over water where predators cannot reach easily. They are widespread and common within their range but are prone to local, seasonal movements mainly in response to rain and food availability.
The Indian courser is a species of courser found in mainland South Asia, mainly in the plains bounded by the Ganges and Indus river system. Like other coursers, it is a ground bird that can be found in small groups as they forage for insects in dry open semi-desert country.
The large gray babbler is a member of the family Leiothrichidae found across India and far western Nepal. They are locally common in the scrub, open forest and gardenland. They are usually seen in small groups and are easily distinguished from other babblers in the region by their nasal call and the whitish outer feathers to their long tail. It is one of the largest babblers in the region.
K. K. Neelakantan better known by his pen name Induchoodan, was a leading Indian ornithologist. He is widely regarded as a pioneer of the environmental movement in Kerala for popularizing bird study through his books written in Malayalam.