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White-bellied Woodpecker
The white-bellied woodpecker or great black woodpecker (''Dryocopus javensis'') is a woodpecker species inhabiting evergreen forests in tropical Indian subcontinent and Southeast Asia. It is among the largest of the Asiatic woodpeckers and nests in large dead trees, often beside rivers. It has 14 subspecies, and many of its island forms are endangered, some are extinct. Populations differ in the distribution and extent of white. Its drums and calls are louder than those of the smaller woodpeckers. Description This species is one of the largest living species of woodpecker. Adults range in size from and are behind only to the great slaty woodpecker and black woodpecker in size among Asian woodpecker species. The species is considered closely related to the more northern black woodpecker and the North American pileated woodpecker and is similar in size to these species. Body mass can vary from . Among standard measurements, the Wing chord (biology), wing chord is , the tail is , t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Thomas Horsfield
Thomas Horsfield (May 12, 1773 – July 24, 1859) was an American physician and natural history, naturalist who worked extensively in Indonesia, describing numerous species of plants and animals from the region. He was later a curator of the East India Company Museum in London. Early life Horsfield was born in Bethlehem, Pennsylvania, and studied medicine at the University of Pennsylvania. He was the grandson of Timothy Horsfield, Sr. (1708-1773), who was born in Liverpool and emigrated to New York in 1725. The Horsfield family converted from the Church of England to Moravianism, a Protestant denomination with a strong emphasis on education. In 1748, he moved his family to Bethlehem, Pennsylvania and joined them the next year. Horsfield's father was Timothy Horsfield, Jr. and he married Juliana Sarah Parsons in 1738. Thomas Horsfield was born in Bethlehem on May 12, 1773. He was educated at the Moravian schools in Bethlehem and Nazareth, Pennsylvania, Nazareth. He studied medicin ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tarsus (skeleton)
In the human body, the tarsus (: tarsi) is a cluster of seven articulating bones in each foot situated between the lower end of the tibia and the fibula of the lower leg and the metatarsus. It is made up of the midfoot (Cuboid bone, cuboid, medial, intermediate, and lateral cuneiform bone, cuneiform, and navicular) and hindfoot (Talus bone, talus and calcaneus). The tarsus articulates with the bones of the metatarsus, which in turn articulate with the proximal phalanges of the toes. The joint between the tibia and fibula above and the tarsus below is referred to as the ankle, ankle joint proper. In humans the largest bone in the tarsus is the calcaneus, which is the weight-bearing bone within the heel of the foot. Human anatomy Bones The talus bone or ankle bone is connected superiorly to the two bones of the lower leg, the tibia and fibula, to form the ankle, ankle joint or talocrural joint; inferiorly, at the subtalar joint, to the calcaneus or heel bone. Together, the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Birds Described In 1821
Birds are a group of warm-blooded vertebrates constituting the class Aves (), characterised by feathers, toothless beaked jaws, the laying of hard-shelled eggs, a high metabolic rate, a four-chambered heart, and a strong yet lightweight skeleton. Birds live worldwide and range in size from the bee hummingbird to the common ostrich. There are over 11,000 living species and they are split into 44 orders. More than half are passerine or "perching" birds. Birds have wings whose development varies according to species; the only known groups without wings are the extinct moa and elephant birds. Wings, which are modified forelimbs, gave birds the ability to fly, although further evolution has led to the loss of flight in some birds, including ratites, penguins, and diverse endemic island species. The digestive and respiratory systems of birds are also uniquely adapted for flight. Some bird species of aquatic environments, particularly seabirds and some waterbirds, hav ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Birds Of India
This is a list of the bird species of India and includes Extant taxon, extant and recently extinct species recorded within the political limits of the Republic of India as defined by the Indian government. There have been 1393 species recorded as of 2025, of which 84 are Endemism in birds, endemic to the country. 98 species are globally threatened. The Indian peafowl (''Pavo cristatus'') is the national bird of India. This list does not cover species in Indian jurisdiction areas such as Dakshin Gangotri and oceanic species are delineated by an arbitrary cutoff distance. The list does not include fossil bird species or escapees from captivity. This list's Taxonomy (biology), taxonomic treatment (designation and sequence of orders, families and species) and nomenclature (common and scientific names) follow the conventions of the IOC World Bird List, version 13.1. This list also uses British English throughout. Any bird names or other wording follows that convention. The following ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Dryocopus
''Dryocopus'' is a genus of large powerful woodpeckers, typically 35–45 cm in length. It has representatives in North and South America, Europe, and Asia; some South American species are endangered. It was believed to be closely related to the American genus '' Campephilus'', but it is part of a different lineage of woodpeckers altogether (Benz ''et al.'', 2006) Their breeding habitat is forested areas with large trees, where they nest in a large cavity in a dead tree or a dead part of a tree. They may excavate a new hole each year, creating habitat for other large cavity nesting birds. They are non-migratory permanent residents. They are mainly black in plumage with red on the crown of the head, often as a crest. Most species also have some white areas of plumage, especially on the head, and some have additional red facial markings. The male, female and juvenile plumages of each species usually differ, often in the extent of red on the crown and elsewhere on the head. Th ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Andaman Woodpecker
The Andaman woodpecker (''Dryocopus hodgei'') 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. Taxonomy The Andaman woodpecker was described by Edward Blyth in 1860 as ''Mulleripicus Hodgei''. The specific name ''hodgei'' is for Captain S. Hodge, of the Royal Navy, who was stationed in the Andaman Islands at the time. The species was once considered to be a subspecies of the white-bellied woodpecker, but differs in its appearance and its calls. The separation of the two species is also supported by genetic evidence. Description The Andaman woodpecker is around long and weighs between . The plumage is mostly slate-grey to black, with a bright red crest. The male also has a red crown and malar area under the eye. The bare skin around the eye is grey, and the legs are slaty coloured, and the bill is black. The irises are pale yellow. Juvenile ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tristram's Woodpecker
Tristram's woodpecker (''Dryocopus javensis richardsi'') (, Japanese: ) is a Korean subspecies of the white-bellied woodpecker. It was firstly identified and described by English scholar and ornithologist Henry Baker Tristram in 1879. Description Tristram's woodpecker, with its 46 cm length, is among the largest of all woodpeckers. Both the tuft and the cheek patches are crimson red; its upper parts are black, which contrast with its white underparts, wing tips and a white rump. It has four toes, of which two are directed backwards. Its tail feathers are firm. Its native name was derived from its strange call, which sounds like "kullak!" Habitat and ecology This woodpecker inhabits dense mountain forests above 1,000 m, as well as urban areas. It is commonly found in areas with chestnuts, oaks, poplars, and elms. It prefers dead trees, where it nests in the hollow trunk and searches the bark for insects. The breeding period is from April to May, where the female lays three ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Eastern Ghats
The Eastern Ghats is a mountain range that stretches along the East Coast of India, eastern coast of the Indian peninsula. Covering an area of , it traverses the states and union territories of India, states of Odisha, Telangana, Andhra Pradesh, Karnataka, and Tamil Nadu. The range forms a discontinuous chain of mountains along the eastern edge of the Deccan Plateau, stretching from north of the Mahanadi River in Odisha to Vaigai River in Tamil Nadu at the southern end of the peninsula. The Eastern Ghats meet the Western Ghats at the Nilgiris. The average elevation is around and Arma Konda is the highest peak in the mountains at . Geological evidence indicates that the mountains were formed during the archeozoic era and became part of the Indian subcontinent post the break-up of the supercontinent of Rodinia and the formation of Gondwana. The mountains were formed through further metamorphism during the mid-Proterozoic era. The northern section of the range has an elevation r ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
