Great slaty woodpecker | |
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Mulleripicus pulverulentus mohun(♂) from the lower Himalayas of Kaladhungi, Uttarakhand, India | |
Scientific classification | |
Kingdom: | Animalia |
Phylum: | Chordata |
Class: | Aves |
Order: | Piciformes |
Family: | Picidae |
Genus: | Mulleripicus |
Species: | M. pulverulentus |
Binomial name | |
Mulleripicus pulverulentus (Temminck, 1826) | |
The great slaty woodpecker (Mulleripicus pulverulentus) is a species of bird in the family Picidae. It is found across the Indian Subcontinent and Southeast Asia. A unique and basically unmistakable bird, it is the largest species of woodpecker that is certain to exist today. It is a fairly gregarious species.
It is found in the Indian subcontinent and Southeast Asia, ranging across Bangladesh, Bhutan, Brunei, Cambodia, India, Indonesia, Laos, Malaysia, Myanmar, Nepal, the Philippines, Singapore, Thailand and Vietnam. It is found in the Greater Sundas, but it does not inhabit Bali. [1] [2]
This species prefers to inhabit areas of primary semi-open, moist deciduous and tropical evergreen forest though can on occasion range into adjacent secondary forests, clearings with scattered tall trees and similar almost park-like areas but do not generally visit heavily disturbed areas. Locally, the great slaty woodpecker prefers sprawling stands of dipterocarp and teak trees. Also found in mature sal forests, swamp forest and mangroves with tall, mature trees. The species usually occurs below an elevation of 600 m (2,000 ft), but also locally in montane areas of up to 1,100 m (3,600 ft), occasionally ranging up to 2,000 m (6,600 ft). [2]
With the probable extinctions of the imperial woodpecker and the ivory-billed woodpecker, this species, at 48–58 cm (19–23 in) long and a weight of 360–563 g (0.794–1.241 lb), stands as the largest woodpecker in the world. [3] The average weight was claimed in one study as 430 g (15 oz). [4] Among standard measurements, the wing chord is 21.5 to 25 cm (8.5 to 9.8 in), the tail is 13.4 to 16.2 cm (5.3 to 6.4 in), the bill is 6 to 6.5 cm (2.4 to 2.6 in) and the tarsus is 3.6 to 4.1 cm (1.4 to 1.6 in). This unique-looking woodpecker has several obvious distinctive features: a very long, strong chisel-tipped bill, an elongated neck and a long tail. A slight crest maybe occasionally evident. This species plumage is almost entirely dark grey or blackish slate-grey overlaid with small white spots. The throat is paler grey and males have small red moustache. Normally, the nominate subspecies is the darkest, most slaty gray race. M. p. harterti has a more pale throat with a greater amount of whitish feather tips forming small spot and is slightly paler below than the nominate, sometimes appearing almost whitish on the belly. The size and structure readily distinguishes this bird from almost any other species, including other woodpeckers. Occasionally, at first glance, the great slaty woodpecker is mistaken for a hornbill but, obviously, such a resemblance is slight at best. [2]
For a bird of such great size, the great slaty woodpecker has a weak, quiet voice, especially compared to other large woodpeckers, which tend to have loud, booming voices. The species call is a whinnying cackle of 2 to 5, usually 4 notes, woikwoikwoikwoik, the initial being higher in pitched and the middle note being distinctly lower. Single dwot calls, variable in sound, strength and duration, are sometimes given while perched or in flight. Breeding pairs of these woodpeckers have been heard to softly mew at each other. In more antagonistic situations, sharp taw-whit or dew-it calls are uttered while the birds swing their heads back and forth. [2]
Great slaty woodpeckers are mostly seen in groups consisting of 3 to 6 individuals, which consist of a breeding pair and their young from prior years. Groups often forage on shared feeding sites in the form of nests of social insects as ants, termites, wood-boring beetles and stingless bees. Ants seem to be generally favored in the diet, though larvae of other species may be eaten quite regularly as well. Occasionally, small fruit may supplement the diet. Females spend more time searching for feeding sources and males, which have slightly larger bills, spend more time opening the sources. Preferred feeding sources are mostly found in large branches or trunks of large, living trees. The groups will travel considerable distance to access these trees and, as such, the home ranges of the species are quite large. Occasionally, though, they will feed at lower levels in trees and even amongst saplings. Usually, feeding groups of these woodpeckers do not linger in any given area for long. Sometimes this species associates with slightly smaller white-bellied woodpeckers and considerably smaller greater flamebacks, with the foraging methods of the very different woodpeckers minimizing competition between the species. Perhaps more considerable competition for food sources generally comes in the form of hornbills and arboreal (or tree-dwelling) mammals. The great slaty woodpecker usually works a tree upwards and, though capable of swifter movements, has been described while foraging as if moving in "slow motion". It forages by gleaning, probing, pecking, prising off bark and hammering with powerful and loud blows to excavate the wood. Gleaning is the most important foraging method for the species, with the long neck and bill allowing it to reach out over a considerable distance into the cracks and crevices of trees. This species often flies high over the trees for long distances between successful foraging patches. In flight, its feather rustle noisily. The great slaty woodpecker usually engages in less dipping during than other woodpeckers and flies in a mixed flying style described as quite crow-like. [2]
Like all woodpeckers, breeding pairs roost in separate tree holes but regularly vocalized to stay in contact. The pair bond appears to be lifelong. These woodpeckers engage in displays, largely for territorial purposes. Displays include head-swinging, where the appears to lag behind the body in swinging movements, whinnying calls and widen their wings and tail considerably. Few nests of the species have been described in detail, but at least occasionally nests are raised cooperatively by groups. [5] Known nests, at anywhere from 9 to 45 m (30 to 148 ft) in height in the trees, were located in very large trees. When excavating the nest hole, both parents participate but reportedly the male does the majority of the work. The nest hole entrance will be around 10 cm (3.9 in) across, but much wider inside the tree. The pair will only use a nest from a prior year if competition is too overbearing for a newly constructed hole. The nesting season, in Malaysia at least, appears to be from March to August. The clutch reportedly consists of two to four eggs, which are incubated by both parents. Both parents also feed and generally brood the young. The young great slaty woodpeckers probably stay with their parents until the next breeding season. [2]
Probably because of their feeding and breeding dependence on large old trees, great slaty woodpeckers are most common in primary forests and show density reductions of over 80% in logged forests. [6] The global population is in decline because of the loss of forest cover and logging of old-growth forest throughout its range, with habitat loss being particularly rapid in Myanmar, Cambodia and Indonesia which are the countries that still hold the majority of the global population. In 2010, the great slaty woodpecker was included in the IUCN Red List in the Vulnerable category. [1]
Hornbills (Bucerotidae) are a family of bird found in tropical and subtropical Africa, Asia and Melanesia. They are characterized by a long, down-curved bill which is frequently brightly coloured and sometimes has a casque on the upper mandible. Both the common English and the scientific name of the family refer to the shape of the bill, "buceros" being "cow horn" in Greek. Hornbills have a two-lobed kidney. They are the only birds in which the first and second neck vertebrae are fused together; this probably provides a more stable platform for carrying the bill. The family is omnivorous, feeding on fruit and small animals. They are monogamous breeders nesting in natural cavities in trees and sometimes cliffs. A number of mainly insular species of hornbill with small ranges are threatened with extinction, namely in Southeast Asia.
The great spotted woodpecker is a medium-sized woodpecker with pied black and white plumage and a red patch on the lower belly. Males and young birds also have red markings on the neck or head. This species is found across the Palearctic including parts of North Africa. Across most of its range it is resident, but in the north some will migrate if the conifer cone crop fails. Some individuals have a tendency to wander, leading to the recent recolonisation of Ireland and to vagrancy to North America. Great spotted woodpeckers chisel into trees to find food or excavate nest holes, and also drum for contact and territorial advertisement; like other woodpeckers, they have anatomical adaptations to manage the physical stresses from the hammering action. This species is similar to the Syrian woodpecker.
The European green woodpecker is a large green woodpecker with a bright red crown and a black moustache. Males have a red centre to the moustache stripe which is absent in females. It is resident across much of Europe and the western Palearctic but in Spain and Portugal it is replaced by the similar Iberian green woodpecker.
The Eurasian nuthatch or wood nuthatch is a small passerine bird found throughout the Palearctic and in Europe. Like other nuthatches, it is a short-tailed bird with a long bill, blue-gray upperparts and a black eye-stripe. It is a vocal bird with a repeated loud dwip call. There are more than 20 subspecies in three main groups; birds in the west of the range have orange-buff underparts and a white throat, those in Russia have whitish underparts, and those in the east have a similar appearance to European birds, but lack the white throat.
Woodpeckers are part of the bird family Picidae, which also includes the piculets, wrynecks, and sapsuckers. Members of this family are found worldwide, except for Australia, New Guinea, New Zealand, Madagascar, and the extreme polar regions. Most species live in forests or woodland habitats, although a few species are known that live in treeless areas, such as rocky hillsides and deserts, and the Gila woodpecker specialises in exploiting cacti.
The black woodpecker is a large woodpecker that lives in mature forests across the northern Palearctic. It is the sole representative of its genus in that region. Its range is expanding. The black woodpecker is easily the largest woodpecker species in Europe as well as in the portion of Asia where it lives and is one of the largest species worldwide. This non-migratory species tends to make its home in old-growth forest or large forest stands and excavates a large tree hole to reside in. In turn, several species rely on black woodpeckers to secondarily reside in the holes made in trees by them. This woodpeckers diet consists mostly of carpenter ants. This species is closely related to, and fills the same ecological niche in Europe as, the pileated woodpecker of North America and the lineated woodpecker of South America, also being similar to the white-bellied woodpecker which is distributed to the south somewhat of the black woodpecker in Asia.
The pileated woodpecker is a large, mostly black woodpecker native to North America. An insectivore, it inhabits deciduous forests in eastern North America, the Great Lakes, the boreal forests of Canada, and parts of the Pacific Coast. It is the largest confirmed extant woodpecker species in North America, with the possible exception of the ivory-billed woodpecker, which the U.S. Fish and Wildlife Service has proposed be reclassified as extinct. It is also the third largest species of woodpecker in the world, after the great slaty woodpecker and the black woodpecker. "Pileated" refers to the bird's prominent red crest, from the Latin pileatus meaning "capped".
The yellow-bellied sapsucker is a medium-sized woodpecker that breeds in Canada and the northeastern United States.
The Malabar gray hornbill is a hornbill endemic to the Western Ghats and associated hills of southern India. They have a large beak but lack the casque that is prominent in some other hornbill species. They are found mainly in dense forest and around rubber, arecanut or coffee plantations. They move around in pairs or small groups, feeding on figs and other forest fruits. Their loud cackling and laughing call makes them familiar to people living in the region.
The chestnut woodpecker is a resident breeding bird in South America from Colombia, Venezuela and the Guianas south to Ecuador, Bolivia and northern and western Brazil, and on Trinidad. It is found in a range of habitat types including rainforest, gallery forest, seasonally flooded forest, mangrove woodland, swamps, plantations and wooded savannah. It is a generally uncommon bird, and threatened by habitat loss, but it has a very wide range, and the International Union for Conservation of Nature has assessed its conservation status as being of least concern.
The white-bellied woodpecker or great black woodpecker is found in evergreen forests of tropical Asia, including the Indian subcontinent and Southeast Asia. It has 14 subspecies, part of a complex including the Andaman woodpecker. Many of its island forms are endangered, and some are extinct. Populations differ in the distribution and extent of white. They are among the largest of the Asiatic woodpeckers and nest in large dead trees, often beside rivers. Their drums and calls are louder than those of the smaller woodpeckers.
Austen's brown hornbill is a species of hornbill found in forests from northeastern India and south to Vietnam and northern Thailand. It is sometimes included as a subspecies of Tickell's brown hornbill.
The Magellanic woodpecker is a very large woodpecker found in southern Chile and southwestern Argentina; it is resident within its range. This species is the southernmost example of the genus Campephilus, which includes the famous ivory-billed woodpecker.
The Hispaniolan woodpecker is a medium-sized woodpecker endemic to the Caribbean island of Hispaniola.
The oriental pied hornbill is an Indo-Malayan pied hornbill, a large canopy-dwelling bird belonging to the family Bucerotidae. Two other common names for this species are Sunda pied hornbill (convexus) and Malaysian pied hornbill.
The thick-billed ground pigeon, also known as the jungle pigeon or the slaty/grey ground pigeon, is a species of bird in the family Columbidae. It is monotypic within the genus Trugon. Native to New Guinea, its natural habitat is moist tropical lowland forest.
The slaty-backed forktail is a species of forktail in the family Muscicapidae. A slim, medium-sized forktail, it is distinguished from similar species by its slate grey forehead, crown, and mantle. It has a long and deeply forked tail banded in black and white, a white rump, and a white bar across its primary feathers; the rest of the plumage is predominantly white. The sexes look alike. The bird frequents the edges of fast-flowing streams and rivers, where it hunts small invertebrates by hopping among rocks or flying out over the water. It breeds between February and July, laying 3–4 pinkish, bluish, or white eggs; both sexes incubate the eggs.
The Andaman woodpecker is a species of bird in the woodpecker family Picidae. It is endemic to the Andaman Islands in India. Its natural habitat is tropical moist lowland forests. It is threatened by habitat loss.
The ashy woodpecker is a species of bird in the woodpecker family Picidae. It is endemic to Sulawesi and surrounding islands in Indonesia. There are two subspecies, the nominate race M. f. fulvus, which is found in northern Sulawesi, the islands of Lembeh and Manterawu, and the archipelagos of Togian and Banggai; and M. f. wallacei, from southern Sulawesi and the islands of Muna and Buton. The second subspecies is named for the collector and scientist Alfred Russel Wallace.
Toucans are members of the Neotropical near passerine bird family Ramphastidae. The Ramphastidae are most closely related to the American barbets. They are brightly marked and have large, often colorful bills. The family includes five genera and over forty different species.