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Newtonia (bird)
''Newtonia'' is a genus of passerine birds containing four to five species. They were formerly classified in the Old World warbler family Sylviidae or Old World flycatcher family Muscicapidae but have recently been shown to belong to the vanga family Vangidae.Yamagishi, Satoshi; Honda, Masanao; Eguchi, Kazuhiro & Thorstrom, Russel (2001"Extreme endemic radiation of the Malagasy Vangas (Aves: Passeriformes)"''Journal of Molecular Evolution'', 53: 39-46 They are endemic to Madagascar where they occur in forest or scrubland. They forage in pairs for insects, often joining mixed-species feeding flocks. They are small plump birds, about 12 centimetres in length. They have slender bills and usually have a pale eye. Their plumage is mainly grey or brown, paler on the underparts. They have loud, repeated songs A song is a musical composition intended to be performed by the human voice. This is often done at distinct and fixed pitches (melodies) using patterns of sound and sile ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Common Newtonia
The common newtonia (''Newtonia brunneicauda'') is a species of bird in the family Vangidae. It is endemic to Madagascar. Its natural habitats are subtropical or tropical dry forests and subtropical or tropical moist lowland forests. It is a small bird with greyish-brown upper parts, tannish-white underparts, a black bill and golden-yellow eyes. Taxonomy and systematics There are two subspecies of the common newtonia: ''Newtonia brunneicauda brunneicauda, Newton 1863-'' It is found in forested regions throughout Madagascar. ''Newtonia brunneicauda inornata'' is considered to be a synonym. ''Newtonia brunneicauda monticola, Salomonsen 1934-'' It is found in the Ankaratra mountains of central Madagascar. Description It is a small, short-winged, warbler like bird with relatively long legs. It is 12 cm in length and weighs 7–14.5 g, with a wing length of 54.5 mm. Sexes look similar to each other. It has grayish brown upperparts and is pale warm buff in colour under. The no ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Insect
Insects (from Latin ') are pancrustacean hexapod invertebrates of the class Insecta. They are the largest group within the arthropod phylum. Insects have a chitinous exoskeleton, a three-part body ( head, thorax and abdomen), three pairs of jointed legs, compound eyes and one pair of antennae. Their blood is not totally contained in vessels; some circulates in an open cavity known as the haemocoel. Insects are the most diverse group of animals; they include more than a million described species and represent more than half of all known living organisms. The total number of extant species is estimated at between six and ten million; In: potentially over 90% of the animal life forms on Earth are insects. Insects may be found in nearly all environments, although only a small number of species reside in the oceans, which are dominated by another arthropod group, crustaceans, which recent research has indicated insects are nested within. Nearly all insects hatch from eggs. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Newtonia (bird)
''Newtonia'' is a genus of passerine birds containing four to five species. They were formerly classified in the Old World warbler family Sylviidae or Old World flycatcher family Muscicapidae but have recently been shown to belong to the vanga family Vangidae.Yamagishi, Satoshi; Honda, Masanao; Eguchi, Kazuhiro & Thorstrom, Russel (2001"Extreme endemic radiation of the Malagasy Vangas (Aves: Passeriformes)"''Journal of Molecular Evolution'', 53: 39-46 They are endemic to Madagascar where they occur in forest or scrubland. They forage in pairs for insects, often joining mixed-species feeding flocks. They are small plump birds, about 12 centimetres in length. They have slender bills and usually have a pale eye. Their plumage is mainly grey or brown, paler on the underparts. They have loud, repeated songs A song is a musical composition intended to be performed by the human voice. This is often done at distinct and fixed pitches (melodies) using patterns of sound and sile ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Red-tailed Newtonia
The red-tailed newtonia (''Newtonia fanovanae'') is a species of bird in the family Vangidae. It is endemic to Madagascar. Its natural habitat is subtropical or tropical moist lowland forests. It is threatened by habitat loss Habitat destruction (also termed habitat loss and habitat reduction) is the process by which a natural habitat becomes incapable of supporting its native species. The organisms that previously inhabited the site are displaced or dead, thereby .... References External linksBirdLife Species Factsheet. red-tailed newtonia red-tailed newtonia Taxonomy articles created by Polbot Fauna of the Madagascar lowland forests {{Vangidae-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Archbold's Newtonia
Archbold's newtonia (''Newtonia archboldi'') is a species of bird in the family Vangidae. It is endemic to Madagascar. Its natural habitats are subtropical or tropical dry forests and subtropical or tropical dry shrubland. The birds have a greyish brown back and tail, with a rufous forecrown and a buffy white belly, throat, and undertail coverts. They have a conspicuous rufous eye-ring, accompanied with a black bill and pale yellow eyes. The species is sexually monomorphic, and there is no major difference between the sexes. There is no breeding plumage for the males. The newtonia is an insectivore and feeds almost entirely on arthropods. Food is typically gleaned from twigs and foliage, or less commonly from bark or from the ground. It builds an open cup nest which are supported on shrubs. Clutches are typically of 3 eggs. The eggs are reddish white in colour and have many pale brown spots on the larger end of the egg. The name commemorates the New Guinea explorer and ornithol ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Southern Dark Newtonia
The southern dark newtonia (''Newtonia lavarambo'') is a species of bird in the family Vangidae. It is endemic to the montane forests of southeastern Madagascar, from Andringitra south to Tolagnaro. It was formerly considered a population of the dark newtonia (''N. amphichroa'') (now referred to as the northern dark newtonia), but was split from it in 2018 and classified as a distinct species after an analysis of physical and genetic differences from ''N. amphichroa'', most notably its longer tail. However, some authorities such as ''The Clements Checklist of Birds of the World ''The Clements Checklist of Birds of the World'' is a book by Jim Clements which presents a list of the bird species of the world. The most recent printed version is the sixth edition (2007), but has been updated yearly, the last version in 2022 ...'' have supported tentatively classifying ''N. lavarambo'' as a subspecies of ''N. amphichroa'' rather than a distinct species. References {{Taxonba ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Dark Newtonia
The northern dark newtonia (''Newtonia amphichroa'') is a species of bird in the family Vangidae. It is endemic to northeastern Madagascar. Its natural habitat is subtropical or tropical moist lowland forests. It was formerly grouped with the recently described southern dark newtonia (''N. lavarambo'') as the dark newtonia. However, a 2018 study described ''N. lavarambo'' as a distinct species based on genetic and physical characteristics, and thus both were split from each other. However, some authorities such as ''The Clements Checklist of Birds of the World'' have tentatively classified ''N. lavarambo'' as a subspecies In biological classification, subspecies is a rank below species, used for populations that live in different areas and vary in size, shape, or other physical characteristics (morphology), but that can successfully interbreed. Not all species ... of ''N. amphicroa'' rather than a distinct species. References dark newtonia dark newtonia Taxonomy ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bird Song
Bird vocalization includes both bird calls and bird songs. In non-technical use, bird songs are the bird sounds that are melodious to the human ear. In ornithology and birding, songs (relatively complex vocalizations) are distinguished by function from calls (relatively simple vocalizations). Definition The distinction between songs and calls is based upon complexity, length, and context. Songs are longer and more complex and are associated with territory and courtship and mating, while calls tend to serve such functions as alarms or keeping members of a flock in contact. Other authorities such as Howell and Webb (1995) make the distinction based on function, so that short vocalizations, such as those of pigeons, and even non-vocal sounds, such as the drumming of woodpeckers and the "winnowing" of snipes' wings in display flight, are considered songs. Still others require song to have syllabic diversity and temporal regularity akin to the repetitive and transformative patte ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Plumage
Plumage ( "feather") is a layer of feathers that covers a bird and the pattern, colour, and arrangement of those feathers. The pattern and colours of plumage differ between species and subspecies and may vary with age classes. Within species, there can be different colour morphs. The placement of feathers on a bird is not haphazard, but rather emerge in organized, overlapping rows and groups, and these are known by standardized names. Most birds moult twice a year, resulting in a breeding or ''nuptial plumage'' and a ''basic plumage''. Many ducks and some other species such as the red junglefowl have males wearing a bright nuptial plumage while breeding and a drab ''eclipse plumage'' for some months afterward. The painted bunting's juveniles have two inserted moults in their first autumn, each yielding plumage like an adult female. The first starts a few days after fledging replacing the ''juvenile plumage'' with an ''auxiliary formative plumage''; the second a month or so l ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Beak
The beak, bill, or rostrum is an external anatomical structure found mostly in birds, but also in turtles, non-avian dinosaurs and a few mammals. A beak is used for eating, preening, manipulating objects, killing prey, fighting, probing for food, courtship, and feeding young. The terms ''beak'' and ''rostrum'' are also used to refer to a similar mouth part in some ornithischians, pterosaurs, cetaceans, dicynodonts, anuran tadpoles, monotremes (i.e. echidnas and platypuses, which have a beak-like structure), sirens, pufferfish, billfishes and cephalopods. Although beaks vary significantly in size, shape, color and texture, they share a similar underlying structure. Two bony projections – the upper and lower mandibles – are covered with a thin keratinized layer of epidermis known as the rhamphotheca. In most species, two holes called ''nares'' lead to the respiratory system. Etymology Although the word "beak" was, in the past, generally restricted to the sharpened bills o ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mixed-species Feeding Flock
A mixed-species feeding flock, also termed a mixed-species foraging flock, mixed hunting party or informally bird wave, is a flock of usually insectivorous birds of different species that join each other and move together while foraging. These are different from feeding aggregations, which are congregations of several species of bird at areas of high food availability. While it is currently unknown how mixed-species foraging flocks originate, researchers have proposed a few mechanisms for their initiation. Many believe that nuclear species play a vital role in mixed-species flock initiation. Additionally, the forest structure is hypothesized to play a vital role in these flocks' formation. In Sri Lanka, for example, vocal mimicry by the greater racket-tailed drongo might have a key role in the initiation of mixed-species foraging flocks, while in parts of the American tropics packs of foraging golden-crowned warblers might play the same role. Composition Mixed-species foraging ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Scrubland
Shrubland, scrubland, scrub, brush, or bush is a plant community characterized by vegetation dominance (ecology), dominated by shrubs, often also including grasses, Herbaceous plant, herbs, and geophytes. Shrubland may either occur naturally or be the result of human activity. It may be the mature vegetation type in a particular region and remain stable over time, or a transitional community that occurs temporarily as the result of a disturbance, such as fire. A stable state may be maintained by regular natural disturbance such as fire or browsing (predation), browsing. Shrubland may be unsuitable for human habitation because of the danger of fire. The term was coined in 1903. Shrubland species generally show a wide range of adaptations to fire, such as heavy seed production, lignotubers, and fire-induced germination. Botanical structural form In botany and ecology a shrub is defined as a much-branched woody plant less than 8 m high and usually with many Plant stem, stems. T ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
