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Australasian Babbler
The Pomatostomidae (Australo-Papuan or Australasian babblers, also known as pseudo-babblers) are small to medium-sized birds endemic to Australia-New Guinea. For many years, the Australo-Papuan babblers were classified, rather uncertainly, with the Old World babblers (Timaliidae), on the grounds of similar appearance and habits. More recent research, however, indicates that they are too basal to belong the Passerida – let alone the Sylvioidea where the Old World babblers are placed – and they are now classed as a separate family close to the Orthonychidae (logrunners). Five species in one genus are currently recognised, although the red-breasted subspecies ''rubeculus'' of the grey-crowned babbler may prove to be a separate species. Description The Australo-Papuan babblers are medium-sized terrestrial birds with sombre plumage and long decurved bills. They range in size from in length and in weight. The wings are short and round, and the tail is long and often held fanned ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Chestnut-crowned Babbler
The chestnut-crowned babbler (''Pomatostomus ruficeps'') is a medium-sized bird that is endemic to arid and semi-arid areas of south-eastern Australia.Higgins, P. J. and Peter, J. M. (2002). Handbook of Australian, New Zealand and Antarctic Birds. Volume 6: Pardalotes to shrike-thrushes. Oxford University Press, Melbourne. It is a member of the family Pomatostomidae, which comprises five species of Australo-Papuan babblers. All are boisterous and highly social, living in groups of up to 23 individuals that forage and breed communally. Other names include red-capped babbler, rufous-crowned babbler and chatterer.BirdLife Australia (2013). Chestnut-crowned Babbler. Birds in Backyards program. Available at: http://www.birdsinbackyards.net/species/Pomatostomus-ruficeps. Accessed 14 October 2013. Description Chestnut-crowned babblers are dark, brown-grey birds with a white throat and breast, white-tipped tail and a long, black, down-curved bill. Wings are short and rounded and the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Papuan Babbler
The Papuan babbler (''Garritornis isidorei''), New Guinea babbler or Isidore's rufous babbler, is a species of bird in the family Pomatostomidae. It is found in New Guinea. 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 * BirdLife International 2004.Pomatostomus isidorei 2006 IUCN Red List of Threatened Species. Downloaded on 26 July 2007. Papuan babbler Birds of New Guinea Endemic fauna of New Guinea Least concern biota of Oceania Papuan babbler Taxonomy articles created by Polbot {{passeri-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pomatostomus Superciliosus - Chiltern
''Pomatostomus'' is a genus of small to medium-sized birds endemic to Australia-New Guinea. All four species are distributed in Australia, and only the grey-crowned babbler could also be found in south New Guinea. ''Pomatostomus'' is the type genus of the family Pomatostomidae. It was the only genus in the family before the Papuan babbler The Papuan babbler (''Garritornis isidorei''), New Guinea babbler or Isidore's rufous babbler, is a species of bird in the family Pomatostomidae. It is found in New Guinea. Its natural habitat is subtropical or tropical moist lowland forest ... was classified as a separate genus ''Garritornis''. Species References External linksPseudo-babbler videoson the Internet Bird Collection Bird genera 01 Higher-level bird taxa restricted to the Australasia-Pacific region Pomatostomidae {{Bird-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Grey-crowned Babbler
The grey-crowned babbler (''Pomatostomus temporalis'') is a species of bird in the family Pomatostomidae. It is found in Australia, Indonesia, and Papua New Guinea. Its natural habitats are temperate forests and subtropical or tropical moist lowland forests. Taxonomy Two subspecies are recognised within Australia and New Guinea. ''Pomatostomus temporalis temporalis'' – This subspecies occurs within Australia in the states of Victoria, eastern Queensland (including Cape York), New South Wales and south-eastern South Australia. It is a vagrant or accidental visitor to the Australian Capital Territory. It is also the subspecies believed to occur within New Guinea. ''Pomoatostomus temporalis rubeculus'' – This subspecies occurs in Australia within the states of Western Australia, Northern Territory, western Queensland and a small area of northern South Australia. The breast color is usually used as the distinguishing morphological character between the subspecies, with a crea ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Fledge
Fledging is the stage in a flying animal's life between hatching or birth and becoming capable of flight. This term is most frequently applied to birds, but is also used for bats. For altricial birds, those that spend more time in vulnerable condition in the nest, the nestling and fledging stage can be the same. For precocial birds, those that develop and leave the nest quickly, a short nestling stage precedes a longer fledging stage. All birds are considered to have fledged when the feathers and wing muscles are sufficiently developed for flight. A young bird that has recently fledged but is still dependent upon parental care and feeding is called a fledgling. People often want to help fledglings, as they appear vulnerable, but it is best to leave them alone. The USA National Phenology Phenology is the study of periodic events in biological life cycles and how these are influenced by seasonal and interannual variations in climate, as well as habitat factors (suc ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Avian Incubation
Egg incubation is the process by which an egg, of oviparous (egg-laying) animals, develops an embryo within the egg, after the egg's formation and ovipositional release. Egg incubation is done under favorable environmental conditions, possibly by brooding and hatching the egg. Multiple and various factors are vital to the incubation of various species of animal. In many species of reptile for example, no fixed temperature is necessary, but the actual temperature determines the sex ratio of the offspring. In birds in contrast, the sex of offspring is genetically determined, but in many species a constant and particular temperature is necessary for successful incubation. Especially in poultry, the act of sitting on eggs to incubate them is called brooding. The action or behavioral tendency to sit on a clutch of eggs is also called broodiness, and most egg-laying breeds of poultry have had this behavior selectively bred out of them to increase production. Avian incubation A ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Communal Roosting
Communal roosting is an animal behavior where a group of individuals, typically of the same species, congregate in an area for a few hours based on an external signal and will return to the same site with the reappearance of the signal. Environmental signals are often responsible for this grouping, including nightfall, high tide, or rainfall. The distinction between communal roosting and cooperative breeding is the absence of chicks in communal roosts. While communal roosting is generally observed in birds, the behavior has also been seen in bats, primates, and insects. The size of these roosts can measure in the thousands to millions of individuals, especially among avian species. There are many benefits associated with communal roosting including: increased foraging ability, decreased thermoregulatory demands, decreased predation, and increased conspecific interactions. While there are many proposed evolutionary concepts for how communal roosting evolved, no specific hypothesis i ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bird Nest
A bird nest is the spot in which a bird lays and incubates its eggs and raises its young. Although the term popularly refers to a specific structure made by the bird itself—such as the grassy cup nest of the American robin or Eurasian blackbird, or the elaborately woven hanging nest of the Montezuma oropendola or the village weaver—that is too restrictive a definition. For some species, a nest is simply a shallow depression made in sand; for others, it is the knot-hole left by a broken branch, a burrow dug into the ground, a chamber drilled into a tree, an enormous rotting pile of vegetation and earth, a shelf made of dried saliva or a mud dome with an entrance tunnel. The smallest bird nests are those of some hummingbirds, tiny cups which can be a mere across and high. At the other extreme, some nest mounds built by the dusky scrubfowl measure more than in diameter and stand nearly tall. The study of birds' nests is known as ''caliology''. Not all bird species buil ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Neolamprologus Pulcher
''Neolamprologus pulcher'' is a species of cichlid endemic to Lake Tanganyika where it prefers locations with plenty of sedimentation. The common name for ''N. pulcher'' is the daffodil cichlid. This species can reach a length of TL. It can also be found in the aquarium trade. Taxonomy and phylogeny Previously, it was believed that ''N. pulcher'' and ''N. brichardi'' were two distinct species. Now they are considered the same species, the only difference being that Neolamprologus brichardi has a black stripe running from its eye to its gill cover and a yellow spot just above it, both of which are absent in N. pulcher. Because Neolamprologus pulcher is the older of the two scientific names, the rules of scientific nomenclature would make this the correct name for the species. The daffodil cichlid, when it was still known as N. brichardi, was named after Pierre Brichard, a Belgian who set up a collection station, for the export of Tanganyikan cichlids in 1971, named "Fishes ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Helpers At The Nest
Helpers at the nest is a term used in behavioural ecology and evolutionary biology to describe a social structure in which juveniles and sexually mature adolescents of either one or both sexes remain in association with their parents and help them raise subsequent broods or litters, instead of dispersing and beginning to reproduce themselves. This phenomenon was first studied in birds where it occurs most frequently, but it is also known in animals from many different groups including mammals and insects. It is a simple form of co-operative breeding. The effects of helpers usually amount to a net benefit, however, benefits are not uniformly distributed by all helpers nor across all species that exhibit this behaviour. There are multiple proposed explanations for the behaviour, but its variability and broad taxonomic occurrences result in simultaneously plausible theories.Dickinson, J. L.; Hatchwell, B. J. (2004) "Fitness consequences of helping" in ''Ecology and evolution of coop ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Monogamy
Monogamy ( ) is a form of dyadic relationship in which an individual has only one partner during their lifetime. Alternately, only one partner at any one time (serial monogamy) — as compared to the various forms of non-monogamy (e.g., polygamy or polyamory). The term is also applied to the social behavior of some animals, referring to the state of having only one mate at any one time. A monogamous relationship can be sexual or emotional, but it's usually both. Many modern relationships are monogamous. Terminology The word '' monogamy'' derives from the Greek μονός, ''monos'' ("alone"), and γάμος, ''gamos'' ("marriage").Cf. "Monogamy" in ''Britannica World Language Dictionary'', R.C. Preble (ed.), Oxford-London 1962, p. 1275:''1. The practice or principle of marrying only once. opp. to digamy now ''rare'' 2. The condition, rule or custom of being married to only one person at a time (opp. to polygamy or bigamy) 1708. 3. Zool. The habit of living in pairs, or h ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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