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Hawking (birds)
Hawking is a feeding strategy in birds involving catching flying insects in the air. The term usually refers to a technique of sallying out from a perch to snatch an insect and then returning to the same or a different perch, though it also applies to birds that spend almost their entire lives on the wing. This technique is called "flycatching" and some birds known for it are several families of "flycatchers": Old World flycatchers, monarch flycatchers, and tyrant flycatchers. Other birds, such as swifts, swallows, and nightjars, also take insects on the wing in continuous aerial feeding. The term "hawking" comes from the similarity of this behavior to the way hawks take prey in flight, although, whereas raptors may catch prey with their feet, hawking is the behavior of catching insects in the bill. Many birds have a combined strategy of both hawking insects and gleaning them from foliage. Flycatching The various methods of taking insects have been categorized as: gleaning (per ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Small Niltava
The small niltava (''Niltava macgrigoriae'') is a species of bird in the family Muscicapidae, native to the Indian subcontinent and Southeast Asia. It is found in Bangladesh, Bhutan, India, Laos, Myanmar, Nepal, Thailand, Tibet and Vietnam. Its natural habitat is subtropical or tropical moist montane forests. Taxonomy and systematics Subspecies * ''N. m. macgrogoriae'' - ( Burton, 1836): The nominate subspecies, found in the central and western Himalayas from Uttarakhand to Sikkim and West Bengal. * ''N. m. signata'' - (McClelland, 1840): Found in Northeast India, Myanmar, southern China, north Thailand, and continental Southeast Asia. Non-breeding individuals are also found in coastal Guangdong. Males tend to have a greyer belly and underside than the nominate. Behaviour and ecology Diet Eats small invertebrates and fruits. Gallery File:Small Niltava Pangolakha WLS East Sikkim India 24.05.2015.jpg, Male Niltava macgrigoriae from Pangolakha Wildlife Sanctuary, Si ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Common Poorwill
The common poorwill (''Phalaenoptilus nuttallii'') is a nocturnal bird of the family Caprimulgidae, the nightjars. It is found from British Columbia and southeastern Alberta, through the western United States to northern Mexico. The bird's habitat is dry, open areas with grasses or shrubs, and even stony desert slopes with very little vegetation. Many northern birds migrate to winter within the breeding range in central and western Mexico, though some remain further north. The common poorwill is the only bird known to go into torpor for extended periods (weeks to months). This happens on the southern edge of its range in the United States, where it spends much of the winter inactive, concealed in piles of rocks. Such an extended period of torpor is close to a state of hibernation and is not known among other birds. Taxonomy The common poorwill was illustrated and formally described in 1844 by the ornithologist John James Audubon from a male specimen collected on the easter ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Common Nighthawk
The common nighthawk (''Chordeiles minor'') is a medium-sized crepuscular or nocturnal bird of the Americas within the nightjar family, whose presence and identity are best revealed by its vocalization. Typically dark (gray, black and brown), displaying cryptic colouration and intricate patterns, this bird is difficult to spot with the naked eye during the day. This bird is most conspicuous when in its buoyant and erratic flight. The most remarkable feature of this aerial insectivore is its small beak that belies the massiveness of its mouth. Some claim appearance similarities to owls. With its horizontal stance and short legs, the common nighthawk does not travel frequently on the ground, instead preferring to perch horizontally, parallel to branches, on posts, on the ground or on a roof. The males of this species may roost together but the bird is primarily solitary. The common nighthawk shows variability in territory size. This caprimulgid has a large, flattened head with l ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Common Swift
The common swift (''Apus apus'') is a medium-sized bird, superficially similar to the barn swallow or house martin but somewhat larger, though not stemming from those passerine species, being in the order Apodiformes. The resemblances between the groups are due to convergent evolution, reflecting similar contextual development. The swifts' nearest relatives are the New World hummingbirds and the Southeast Asian treeswifts. Its scientific name ''Apus'' is Latin for a swift, thought by the ancients to be a type of swallow with no feet (from Ancient Greek α, ''a'', "without", and πούς, ''pous'', "foot"). Swifts have very short legs which they use primarily for clinging to vertical surfaces (hence the German name ''Mauersegler'', literally meaning "wall-glider"). They never settle voluntarily on the ground, where they would be vulnerable to accidents and predation, and non-breeding individuals may spend up to ten months in continuous flight. Taxonomy The common swift was one o ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Apus Apus 01
Apus is a small constellation in the southern sky. It represents a bird-of-paradise, and its name means "without feet" in Greek because the bird-of-paradise was once wrongly believed to lack feet. First depicted on a celestial globe by Petrus Plancius in 1598, it was charted on a star atlas by Johann Bayer in his 1603 ''Uranometria''. The French explorer and astronomer Nicolas Louis de Lacaille charted and gave the brighter stars their Bayer designations in 1756. The five brightest stars are all reddish in hue. Shading the others at apparent magnitude 3.8 is Alpha Apodis, an orange giant that has around 48 times the diameter and 928 times the luminosity of the Sun. Marginally fainter is Gamma Apodis, another ageing giant star. Delta Apodis is a double star, the two components of which are 103 arcseconds apart and visible with the naked eye. Two star systems have been found to have planets. History Apus was one of twelve constellations published by Petrus Plancius from ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Brown Boobook
The brown boobook (''Ninox scutulata''), also known as the brown hawk-owl, is an owl which is a resident breeder in south Asia from India, Sri Lanka, Bangladesh and Nepal east to western Indonesia and south China. This species is a part of the larger grouping of owls known as typical owls, Strigidae, which contains most species of owl. The other grouping is the barn owls, Tytonidae. Taxonomy The brown boobook was formally described in 1822 by Stamford Raffles from a specimen collected in Sumatra under the binomial name ''Strix scutulata''. The specific epithet is from Latin ''scutulatus '' meaning "diamond-shaped". The brown boobook is now placed with the other boobooks in the genus ''Ninox'' that was introduced by the English naturalist Brian Houghton Hodgson in 1837. Nine subspecies are recognised: * ''N. s. lugubris'' ( Tickell, 1833) – north, northeast, central India and Nepal * ''N. s. burmanica'' Hume, 1876 – northeast India to south China, Indochina and Thaila ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Western Screech Owl
The western screech owl (''Megascops kennicottii'') is a small owl native to North and Central America, closely related to the eastern screech owl. The scientific name commemorates the American naturalist Robert Kennicott. Description Length averages , wingspan , and weight . Weight ranges from .''CRC Handbook of Avian Body Masses'' by John B. Dunning Jr. (Editor). CRC Press (1992), . Females are larger than males and northern populations are notably larger than southern populations. Adults are larger than whiskered screech owls, with larger feet and a more streaked plumage pattern. There are several morphs: brown Pacific, grey Pacific, Great Plains, Mojave, and Mexican. All have either brown or dark gray plumage with streaking on the underparts. There is no red morph. This brown and gray streaky coloring allows the owl to camouflage with trees and hide from predators. They have a round head with ear tufts, yellow eyes, and a yellowish bill. Their appearance is quite similar t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bee-eater
The bee-eaters are a group of non-passerine birds in the family Meropidae, containing three genera and thirty species. Most species are found in Africa and Asia, with a few in southern Europe, Australia, and New Guinea. They are characterised by richly coloured plumage, slender bodies, and usually elongated central tail feathers. All have long down-turned bills and medium to long wings, which may be pointed or round. Male and female plumages are usually similar. As their name suggests, bee-eaters predominantly eat flying insects, especially bees and wasps, which are caught on the wing from an open perch. The insect's stinger is removed by repeatedly hitting and rubbing the insect on a hard surface. During this process, pressure is applied to the insect's body, thereby discharging most of the venom. Most bee-eaters are gregarious. They form colonies, nesting in burrows tunnelled into vertical sandy banks, often at the side of a river or in flat ground. As they mostly live in col ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Australasia
Australasia is a region that comprises Australia, New Zealand and some neighbouring islands in the Pacific Ocean. The term is used in a number of different contexts, including geopolitically, physiogeographically, philologically, and ecologically, where the term covers several slightly different, but related regions. Derivation and definitions Charles de Brosses coined the term (as French ''Australasie'') in ''Histoire des navigations aux terres australes'' (1756). He derived it from the Latin for "south of Asia" and differentiated the area from Polynesia (to the east) and the southeast Pacific (Magellanica). In the late 19th century, the term Australasia was used in reference to the "Australasian colonies". In this sense it related specifically to the British colonies south of Asia: New South Wales, Queensland, South Australia, Tasmania, Western Australia, Victoria (i.e., the Australian colonies) and New Zealand. Australasia found continued geopolitical attention in the earl ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Honeyeater
The honeyeaters are a large and diverse family (biology), family, Meliphagidae, of small to medium-sized birds. The family includes the Epthianura, Australian chats, myzomelas, friarbirds, wattlebirds, Manorina, miners and melidectes. They are most common in Australia and New Guinea, and found also in New Zealand, the Pacific islands as far east as Samoa and Tonga, and the islands to the north and west of New Guinea known as Wallacea. Bali, on the other side of the Wallace Line, has a single species. In total there are List of honeyeaters, 186 species in 55 genus, genera, roughly half of them native to Australia, many of the remainder occupying New Guinea. With their closest relatives, the Maluridae (Australian fairy-wrens), Pardalotidae (pardalotes), and Acanthizidae (thornbills, Australian warblers, scrubwrens, etc.), they comprise the superfamily Meliphagoidea and originated early in the evolutionary history of the oscine passerine radiation. Although honeyeaters look and beh ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lewis's Woodpecker
Lewis's woodpecker (''Melanerpes lewis'') is a large North American species of woodpecker which ornithologist Alexander Wilson named after Meriwether Lewis, one of the explorers who surveyed the areas bought by the United States of America as part of the Louisiana Purchase and discovered this species of bird. Taxonomy Lewis's woodpecker was described and illustrated in 1811 by the American ornithologist Alexander Wilson in his ''American Ornithology; or, the Natural History of the Birds of the United States''. Wilson based his description on some bird skins that had been collected on an expedition across the western portion of the United States led by Meriwether Lewis and William Clark in 1803–1806. Wilson coined the English name "Lewis's woodpecker" and the binomial name ''Picus torquatus''. Unfortunately, the specific epithet was preoccupied by the ringed woodpecker, ''Celeus torquatus'' (Boddaert, 1783) and so in 1849 the English zoologist George Robert Gray coined a new ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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