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Eared Nightjar
The eared nightjars are a small group of nocturnal birds in the nightjar family, although the taxonomy is uncertain. There are seven species, mainly found in forest and scrub from China to Australia. 5 species are placed in the genus, ''Eurostopodus'', the other two species in ''Lyncornis''. They are long winged birds with plumage patterned with grey and brown to camouflage them when resting on the ground. They feed on insects caught in flight. A single white egg is laid directly on the ground and incubated by both adults. The chicks can walk soon after hatching. Taxonomy The order Caprimulgiformes contains several families of nocturnal insectivores, these are the frogmouths, the potoos, the oilbird and the nightjars. The latter family is normally split into two subfamilies, the American nighthawks, Chordelinae, and the typical nightjars Caprimulginae.Cleere (1998) p. 15 The eared nightjars are sometimes considered a subfamily Eurostopodinae of the Caprimulgidae but some st ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Archbold's Nightjar
Archbold's nightjar (''Eurostopodus archboldi''), also known as the mountain eared-nightjar, is a species of nightjar in the family Caprimulgidae. It is found in the highlands of New Guinea. Its natural habitat is subtropical or tropical moist montane forests. It is named after American explorer Richard Archbold Richard Archbold (April 9, 1907 – August 1, 1976) was an American zoologist and philanthropist. He was independently wealthy, being the grandson of the capitalist John Dustin Archbold. He was educated at private schools, and later attended cla .... References Archbold's nightjar Birds of New Guinea Archbold's nightjar Archbold's nightjar Taxonomy articles created by Polbot {{caprimulgiformes-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bird Migration
Bird migration is the regular seasonal movement, often north and south along a flyway, between breeding and wintering grounds. Many species of bird migrate. Migration carries high costs in predation and mortality, including from hunting by humans, and is driven primarily by the availability of food. It occurs mainly in the northern hemisphere, where birds are funneled onto specific routes by natural barriers such as the Mediterranean Sea or the Caribbean Sea. Migration of species such as storks, turtle doves, and swallows was recorded as many as 3,000 years ago by Ancient Greek authors, including Homer and Aristotle, and in the Book of Job. More recently, Johannes Leche began recording dates of arrivals of spring migrants in Finland in 1749, and modern scientific studies have used techniques including bird ringing and satellite tracking to trace migrants. Threats to migratory birds have grown with habitat destruction, especially of stopover and wintering sites, as wel ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Crypsis
In ecology, crypsis is the ability of an animal or a plant to avoid observation or detection by other animals. It may be a predation strategy or an antipredator adaptation. Methods include camouflage, nocturnality, subterranean lifestyle and mimicry. Crypsis can involve visual, olfactory (with pheromones) or auditory concealment. When it is visual, the term cryptic coloration, effectively a synonym for animal camouflage, is sometimes used, but many different methods of camouflage are employed by animals or plants. Overview There is a strong evolutionary pressure for animals to blend into their environment or conceal their shape, for prey animals to avoid predators and for predators to be able to avoid detection by prey. Exceptions include large herbivores without natural enemies, brilliantly colored birds that rely on flight to escape predators, and venomous or otherwise powerfully armed animals with warning coloration. Cryptic animals include the tawny frogmouth (feather pat ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tapetum Lucidum
The ''tapetum lucidum'' ( ; ; ) is a layer of tissue in the eye of many vertebrates and some other animals. Lying immediately behind the retina, it is a retroreflector. It reflects visible light back through the retina, increasing the light available to the photoreceptors (although slightly blurring the image). The tapetum lucidum contributes to the superior night vision of some animals. Many of these animals are nocturnal, especially carnivores, while others are deep sea animals. Similar adaptations occur in some species of spiders. Haplorhine primates, including humans, are diurnal and lack a ''tapetum lucidum''. Function and mechanism Presence of a ''tapetum lucidum'' enables animals to see in dimmer light than would otherwise be possible. The ''tapetum lucidum'', which is iridescent, reflects light roughly on the interference principles of thin-film optics, as seen in other iridescent tissues. However, the ''tapetum lucidum'' cells are leucophores, not iridophores. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Great Eared Nightjar
The great eared nightjar (''Lyncornis macrotis'') is a species of nightjar in the family Caprimulgidae. It is found in southwest India and in parts of Southeast Asia. This very large nightjar has long barred wings, a barred tail and long ear-tufts which are often recumbent. It has a white throat band but has no white on its wings or on its tail. Taxonomy The great eared nightjar was formally described in 1831 by the Irish zoologist Nicholas Aylward Vigors based on a sample collected in the neighbourhood of Manila in the Philippines. Vigors coined the binomial name ''Caprimulgus macrotis''. The great eared nightjar was formerly placed in the genus ''Eurostopodus''. It and the closely related Malaysian eared nightjar were moved to the resurrected genus ''Lyncornis'' based on the results of a molecular phylogenetic study published in 2010 that found large genetic differences between the great eared nightjar and other species in ''Eurostopodus''. The genus name ''Lyncornis'' combine ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Malaysian Eared Nightjar
The Malaysian eared nightjar (''Lyncornis temminckii'') is a species of nightjar in the family Caprimulgidae. It is found in Brunei, Indonesia, Malaysia, Singapore, and Thailand. Its natural habitat is subtropical or tropical moist lowland forest A forest is an area of land dominated by trees. Hundreds of definitions of forest are used throughout the world, incorporating factors such as tree density, tree height, land use, legal standing, and ecological function. The United Nations' ...s. References Lyncornis Birds described in 1838 Birds of Borneo Taxonomy articles created by Polbot {{caprimulgiformes-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lyncornis
''Lyncornis'' is a genus of eared nightjar in the family Caprimulgidae. Taxonomy The genus ''Lyncornis'' was introduced in 1838 by the English ornithologist John Gould with ''Lyncornis cerviniceps'' Gould 1838 as the type species. This taxon is now treated as a subspecies of the great eared nightjar. The genus name combines the Ancient Greek ''lunx'', ''lunkos'' meaning "lynx" with ''ornis'' meaning "bird. Species The genus contains two species: These two species were formerly placed in the genus ''Eurostopodus''. They were moved to the resurrected genus ''Lyncornis'' based on the results of a molecular phylogenetic study published in 2010 that found large genetic differences between the great eared nightjar and the other species in ''Eurostopodus''. References Lyncornis, Bird genera Birds of Southeast Asia, {{caprimulgiformes-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Great Eared-Nightjar, Tangkoko, Sulawesi (5799113025) (2)
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Extinct
Extinction is the termination of a kind of organism or of a group of kinds (taxon), usually a species. The moment of extinction is generally considered to be the death of the last individual of the species, although the capacity to breed and recover may have been lost before this point. Because a species' potential range may be very large, determining this moment is difficult, and is usually done retrospectively. This difficulty leads to phenomena such as Lazarus taxa, where a species presumed extinct abruptly "reappears" (typically in the fossil record) after a period of apparent absence. More than 99% of all species that ever lived on Earth, amounting to over five billion species, are estimated to have died out. It is estimated that there are currently around 8.7 million species of eukaryote globally, and possibly many times more if microorganisms, like bacteria, are included. Notable extinct animal species include non-avian dinosaurs, saber-toothed cats, dodos, m ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Satanic Nightjar
The Satanic nightjar (''Eurostopodus diabolicus''), also Heinrich's nightjar, is a mid-sized, spotted, dark brown nightjar endemic to the Indonesian island of Sulawesi. The species was discovered in 1931 by Gerd Heinrich, a German natural historian who collected a single female holotype from Mount Klabat on the Minahasa peninsula of Northern Sulawesi. In the following decades, there were a few unconfirmed reports of sightings and calls of the bird, but it did not officially resurface until 1996 when David Bishop and Jared Diamond positively identified it in Lore Lindu National Park by its sound. Making the visible rediscovery available for multiple people in the tour group including poet and writer Jan Zwaaneveld. This increased the bird's estimated range by 750 km. It has since been observed and described in the literature multiple times. Description The Satanic nightjar measures about 27 cm long. It has a white to buff-colored collar at its throat, blackish head, gre ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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