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Helopsaltes
''Helopsaltes'' is a genus of passerine birds in the grassbird family Locustellidae. A comprehensive molecular phylogenetic study of the grassbird family Locustellidae published in 2018 found that the genus ''Locustella'' consisted of two distinct clades. The genus was split and six species were moved to the newly described genus ''Helopsaltes'' with Pallas's grasshopper warbler (''Helopsaltes certhiola'') as the type species. The genus name combines the Ancient Greek ἕλος/''helos'' meaning "marshy ground" and ψάλτης/''psaltis'' "a chanter". As well as the genetic separation, the species of ''Helopsaltes'' also differ markedly from ''Locustella'' in song structure, with varied, 'flowing' warbling songs as opposed to the repetitive and often metronomic insect- (particularly grasshopper)-like songs of ''Locustella'' species. They are very similar to ''Locustella'' species in their cryptic camouflaged plumage, with no differing genus-wide characters; they also show a si ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Middendorff's Grasshopper Warbler
Middendorff's grasshopper warbler (''Helopsaltes ochotensis'') is a species of Old World warbler in the family Locustellidae. It breeds in eastern Siberia to northern Japan, Kamchatka Peninsula and northern Kuril Islands. It winters in the Philippines, Borneo and Sulawesi Sulawesi ( ), also known as Celebes ( ), is an island in Indonesia. One of the four Greater Sunda Islands, and the List of islands by area, world's 11th-largest island, it is situated east of Borneo, west of the Maluku Islands, and south of Min ... and in small numbers in China, Hong Kong, South Korea, Malaysia, Taiwan and the U.S.A. The common name commemorates Alexander Theodor von Middendorff (1815–1894), a German–Russian naturalist who traveled extensively in Siberia. Description Middendorff's grasshopper warbler is in length. The crown, nape, lores and eye-stripe are greyish brown. The mantle is browner and more olive. The supercilium is pale creamy, extending to the ear coverts. The rump and u ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pallas's Grasshopper Warbler
Pallas's grasshopper warbler (''Helopsaltes certhiola''), also known as the rusty-rumped warbler, is an Old World warbler in the genus ''Helopsaltes''. It breeds in the eastern Palearctic: from the Altai Mountains, Mongolia and Transbaikalia to northeastern China, the Korean Peninsula, and islands in the Sea of Okhotsk (Sakhalin and Kuril Islands). It is migratory, wintering from India eastward to Indonesia. It is a rare migrant in Sri Lanka. Etymology This bird was named after the German zoologist Peter Simon Pallas. The specific ''certhiola'' is a diminutive from the genus ''Certhia'', the treecreepers. The sixth edition of ''Clements Checklist'' Clements, James F. (2007) ''The Clements Checklist of Birds of the World'' Cornell University Press refers to this species as "Pallas's warbler", a name more commonly used for '' Phylloscopus proregulus.'' Habitat This small passerine bird is found in tall grass with some thicker vegetation, usually close to water in bogs or wet m ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Styan's Grasshopper Warbler
Styan's grasshopper warbler (''Helopsaltes pleskei''), also known as Pleske's grasshopper warbler and Taczanowski's warbler, is a species of Old World warbler in the family Locustellidae. It breeds in eastern Siberia to Korea, Kyushu and Izu Islands; wintering in South China. Its natural habitats are temperate shrubland, subtropical or tropical dry shrubland, and swamps. It is threatened by habitat loss. Its name recognises the naturalist and collector, Frederick William Styan Frederick William Styan (1858 – 15 September 1934) was an English tea merchant who spent many years in China. During his stay he obtained numerous specimens of fauna which were donated to the British Museum (Natural History). Several species such .... References Place on sub-species spectrum [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Gray's Grasshopper Warbler
Gray's grasshopper warbler (''Helopsaltes fasciolatus''), also known as Gray's warbler, is a species of bird in the family Locustellidae; it was formerly included in the "Old World warbler" assemblage. The Sakhalin grasshopper warbler was formerly considered conspecific. Distribution and habitat This small passerine bird breeds in southern Siberia, northeastern China and Korea. It is migratory, wintering in southeast Asia. It is a species found in lowland and coastal regions, nesting in forests or thickets. Description The adult has an unstreaked olive-brown back, uniformly grey breast and buff underparts, with unmottled dull orange undertail coverts. The song is a short phrase, loud and distinctive; nothing like the insect-like reeling of European ''Locustella'' species, and more musical than that of Pallas's grasshopper warbler Pallas's grasshopper warbler (''Helopsaltes certhiola''), also known as the rusty-rumped warbler, is an Old World warbler in the genus ''Helop ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Marsh Grassbird
The marsh grassbird (''Helopsaltes pryeri''), also known as the Japanese swamp warbler, is a species of Old World warbler in the family Locustellidae. It is found in China, Japan, South Korea, Mongolia, and Russia. Its natural habitat is swamps. It is threatened by habitat loss Habitat destruction (also termed habitat loss or habitat reduction) occurs when a natural habitat is no longer able to support its native species. The organisms once living there have either moved elsewhere, or are dead, leading to a decrease .... References marsh grassbird Birds of East Asia Birds of Manchuria marsh grassbird marsh grassbird Taxonomy articles created by Polbot {{Locustellidae-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Locustellidae
Locustellidae is a recently recognised family of small insectivorous songbirds (" warblers"), formerly placed in the Old World warbler " wastebin" family. It contains the grasshopper warblers, grassbirds, and the '' Bradypterus'' " bush warblers". These birds occur mainly in Eurasia, Africa, and the Australian region. The family name is sometimes given as Megaluridae, but Locustellidae has priority. The name derives from the type genus name ''Locustella'', which is from Latin and is a diminutive of ''locusta'', "grasshopper". Like the English name grasshopper warbler, this refers to the insect-like song of many species of ''Locustella'', most notably the common grasshopper warbler ''Locustella naevia''. The species are smallish birds with tails that are usually long and pointed; the scientific name of the genus ''Megalurus'' in fact means "the large-tailed one" in plain English. They are less wren-like than the typical shrub-warblers ('' Cettia''), but they are similarl ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Locustella
''Locustella'' is a genus of small passerine birds that include the grasshopper warblers. Formerly placed in the paraphyletic "Old World warbler" assemblage, they are now considered the northernmost representatives of a largely Gondwanan family, the Locustellidae. These are rather drab brownish "warblers" usually associated with fairly open grassland, shrubs or marshes. Some are streaked, others plain, all are difficult to view. They are insectivorous. The most characteristic feature of this group is that the song of several species is a mechanical insect-like reeling which gives rise to the group's scientific name. Species breeding in temperate regions are strongly bird migration, migratory. Taxonomy The genus ''Locustella'' was introduced by the German naturalist Johann Jakob Kaup in 1829 with the common grasshopper warbler (''Locustella naevia'') as the type species. The genus name ''Locustella'' is from Latin and is a diminutive of ''locusta'', "grasshopper". Like the En ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Metronome
A metronome () is a device that produces an audible click or other sound at a uniform interval that can be set by the user, typically in beats per minute (BPM). Metronomes may also include synchronized visual motion, such as a swinging pendulum or a blinking light. Musicians—and others including dancers, athletes, and health professionals—often practise with a metronome to improve their timing, especially the ability to maintain a steady tempo with a regular beat or pulse. Composers and conductors often use numerical metronome markings to communicate their preferred tempos to musicians preparing for a performance. A type of metronome was among the inventions of Andalusian polymath Abbas ibn Firnas (810–887). In 1815, German inventor Johann Maelzel patented a mechanical, wind-up metronome as a tool for musicians, under the title "Instrument/Machine for the Improvement of all Musical Performance, called Metronome". In the 20th century, electronic metronomes and software ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Camouflage
Camouflage is the use of any combination of materials, coloration, or illumination for concealment, either by making animals or objects hard to see, or by disguising them as something else. Examples include the leopard's spotted coat, the battledress of a modern soldier, and the leaf-mimic katydid's wings. A third approach, motion dazzle, confuses the observer with a conspicuous pattern, making the object visible but momentarily harder to locate. The majority of camouflage methods aim for crypsis, often through a general resemblance to the background, high contrast disruptive coloration, eliminating shadow, and countershading. In the open ocean, where there is no background, the principal methods of camouflage are transparency, silvering, and countershading, while the bioluminescence, ability to produce light is among other things used for counter-illumination on the undersides of cephalopods such as squid. Some animals, such as chameleons and octopuses, are capable of Active ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Grasshopper
Grasshoppers are a group of insects belonging to the suborder Caelifera. They are amongst what are possibly the most ancient living groups of chewing herbivorous insects, dating back to the early Triassic around 250 million years ago. Grasshoppers are typically ground-dwelling insects with powerful hind legs which allow them to escape from threats by leaping vigorously. Their front legs are shorter and used for grasping food. As hemimetabolous insects, they do not undergo complete metamorphosis; they hatch from an egg into a Nymph (biology), nymph or "hopper" which undergoes five moults, becoming more similar to the adult insect at each developmental stage. The grasshopper hears through the tympanal organ which can be found in the first segment of the abdomen attached to the thorax; while its sense of vision is in the compound eyes, a change in light intensity is perceived in the simple eyes (ocelli). At high population densities and under certain environmental conditions, som ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
