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Alexandra's Parrot
The colourful princess parrot (''Polytelis alexandrae'') is an Australian bird of the parrot family. Its name was given in honour of Princess Alexandra of Denmark, who in 1863 married the Prince of Wales Edward VII and eventually became Queen of the United Kingdom. Other names for the species include: Queen Alexandra parrot (or parakeet), Alexandra's parakeet, Princess of Wales parakeet, rose-throated parakeet, and spinifex parrot. Their plumage is mostly green with a pink throat, bluish crown and rump, and bright green shoulders. Description The princess parrot is a medium-sized parrot, 34 to 46 cm long and weighing between 110 and 120 g. The plumage is mostly green with a pink throat, bluish crown, and bright green shoulders. The rump is blue and the tail is long and narrow. The males have longer tail feathers and brighter coloring than females. The male also has a coral-red beak, while the female's is duller and has a greyish crown. Another difference is that the ma ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
John Gould
John Gould (; 14 September 1804 – 3 February 1881) was an English ornithologist. He published a number of monographs on birds, illustrated by plates produced by his wife, Elizabeth Gould, and several other artists, including Edward Lear, Henry Constantine Richter, Joseph Wolf and William Matthew Hart. He has been considered the father of bird study in Australia and the Gould League in Australia is named after him. His identification of the birds now nicknamed "Darwin's finches" played a role in the inception of Darwin's theory of evolution by natural selection. Gould's work is referenced in Charles Darwin's book, ''On the Origin of Species''. Early life Gould was born in Lyme Regis, the first son of a gardener. Both father and son probably had little education. After working on Dowager Lady Poulett's glass house, his father obtained a position on an estate near Guildford, Surrey, and then in 1818, Gould Snr became foreman in the Royal Gardens of Windsor. Gould then be ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mobbing (animal Behavior)
Mobbing in animals is an antipredator adaptation in which individuals of prey species mob a predator by cooperatively attacking or harassing it, usually to protect their offspring. A simple definition of mobbing is an assemblage of individuals around a potentially dangerous predator. This is most frequently seen in birds, though it is also known to occur in many other animals such as the meerkat and some bovines. While mobbing has evolved independently in many species, it only tends to be present in those whose young are frequently preyed upon. This behavior may complement cryptic adaptations in the offspring themselves, such as camouflage and hiding. Mobbing calls may be used to summon nearby individuals to cooperate in the attack. Konrad Lorenz, in his book ''On Aggression'' (1966), attributed mobbing among birds and animals to instincts rooted in the Darwinian struggle to survive. In his view, humans are subject to similar innate impulses but capable of bringing them under ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Birds Of Western Australia
This is a list of the wild birds found in Western Australia. The list includes introduced species, common vagrants, recently extinct species, extirpated species, some very rare vagrants (seen once) and species only present in captivity. 629 species are listed. The taxonomy is based on Christidis and Boles, 2008. Their system has been developed over nearly two decades and has strong local support, but deviates in important ways from more generally accepted schemes. This list's taxonomic treatment (designation and sequence of orders, families and species) and nomenclature (common and scientific names) follow the conventions of ''The Clements Checklist of Birds of the World'', 2022 edition. All of the birds below are included in the total bird count for Western Australia. The following tags have been used to highlight several categories. The commonly occurring native species do not fall into any of these categories. * (A) Accidental – a species that rarely or accidentally occ ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Birds Of South Australia
Birds are a group of warm-blooded vertebrates constituting the class Aves (), characterised by feathers, toothless beaked jaws, the laying of hard-shelled eggs, a high metabolic rate, a four-chambered heart, and a strong yet lightweight skeleton. Birds live worldwide and range in size from the bee hummingbird to the ostrich. There are about ten thousand living species, more than half of which are passerine, or "perching" birds. Birds have whose development varies according to species; the only known groups without wings are the extinct moa and elephant birds. Wings, which are modified forelimbs, gave birds the ability to fly, although further evolution has led to the loss of flight in some birds, including ratites, penguins, and diverse endemic island species. The digestive and respiratory systems of birds are also uniquely adapted for flight. Some bird species of aquatic environments, particularly seabirds and some waterbirds, have further evolved for swimming. Bird ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Birds Of The Northern Territory
Birds are a group of warm-blooded vertebrates constituting the class Aves (), characterised by feathers, toothless beaked jaws, the laying of hard-shelled eggs, a high metabolic rate, a four-chambered heart, and a strong yet lightweight skeleton. Birds live worldwide and range in size from the bee hummingbird to the ostrich. There are about ten thousand living species, more than half of which are passerine, or "perching" birds. Birds have whose development varies according to species; the only known groups without wings are the extinct moa and elephant birds. Wings, which are modified forelimbs, gave birds the ability to fly, although further evolution has led to the loss of flight in some birds, including ratites, penguins, and diverse endemic island species. The digestive and respiratory systems of birds are also uniquely adapted for flight. Some bird species of aquatic environments, particularly seabirds and some waterbirds, have further evolved for swimming. Birds ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Polytelis
The genus ''Polytelis'' (literally translates into 'magnificent') of the family Psittaculidae consists of three species long-tailed parrot endemic to Australia. Traditionally, it was included in the Australian broad-tailed parrots (tribe Platycercini), but molecular studies place the genus within the Polytelini. A 2017 molecular study placed the regent parrot as an early offshoot to the genus ''Asprosmictus'' and not as closely related to the other two species. Taxonomy The genus has three species. ''Polytelis'' Wagler 1832 * Superb parrot or parakeet ''Polytelis swainsonii'' (Desmarest) 1826 * Regent parrot The regent parrot or rock pebbler (''Polytelis anthopeplus'') is a bird found in southern Australia. It has predominantly yellow plumage with a green tail. The bird is found primarily in eucalyptus groves and other wooded areas of subtropical s ... or parakeet ''Polytelis anthopeplus'' (Lear) 1831 :* ''Polytelis anthopeplus anthopeplus'' (Lear) 1831 :*''Polytelis ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Princess Parrot HD Pic
Princess is a regal rank and the feminine equivalent of prince (from Latin ''princeps'', meaning principal citizen). Most often, the term has been used for the consort of a prince, or for the daughter of a king or prince. Princess as a substantive title Some princesses are reigning monarchs of principalities. There have been fewer instances of reigning princesses than reigning princes, as most principalities excluded women from inheriting the throne. Examples of princesses regnant have included Constance of Antioch, princess regnant of Antioch in the 12th century. Since the President of France, an office for which women are eligible, is ''ex-officio'' a Co-Prince of Andorra, then Andorra could theoretically be jointly ruled by a princess. Princess as a courtesy title Descendants of monarchs For many centuries, the title "princess" was not regularly used for a monarch's daughter, who, in English, might simply be called "Lady". Old English had no female equivalent of "prince ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mutation
In biology, a mutation is an alteration in the nucleic acid sequence of the genome of an organism, virus, or extrachromosomal DNA. Viral genomes contain either DNA or RNA. Mutations result from errors during DNA or viral replication, mitosis, or meiosis or other types of damage to DNA (such as pyrimidine dimers caused by exposure to ultraviolet radiation), which then may undergo error-prone repair (especially microhomology-mediated end joining), cause an error during other forms of repair, or cause an error during replication (translesion synthesis). Mutations may also result from insertion or deletion of segments of DNA due to mobile genetic elements. Mutations may or may not produce detectable changes in the observable characteristics (phenotype) of an organism. Mutations play a part in both normal and abnormal biological processes including: evolution, cancer, and the development of the immune system, including junctional diversity. Mutation is the ultimate source o ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Aviculturist
Aviculture is the practice of keeping and breeding birds, especially of wild birds in captivity. Types There are various reasons that people get involved in aviculture. Some people breed birds to preserve a species. Some people breed parrots as companion birds, and some people breed birds to make a profit. Aviculture Aviculture is the practice of keeping birds ( class '' Aves'') in captivity using controlled conditions, normally within the confines of an aviary, for hobby, business, research and conservation purposes. Some reasons for aviculture are: breeding birds to preserve the species because many avian species are at risk due to habitat destruction and natural disaster. Aviculture encourages conservation, provides education about avian species, provides companion birds for the public, and includes research on avian behaviour. Publications and avicultural societies Publications on aviculture include books on species which include pets, books on breeding and introductory ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Polytelis Alexandrae -Flying High Bird Habitat, Australia-8c
The genus ''Polytelis'' (literally translates into 'magnificent') of the family Psittaculidae consists of three species long-tailed parrot endemic to Australia. Traditionally, it was included in the Australian broad-tailed parrots (tribe Platycercini), but molecular studies place the genus within the Polytelini. A 2017 molecular study placed the regent parrot as an early offshoot to the genus ''Asprosmictus'' and not as closely related to the other two species. Taxonomy The genus has three species. ''Polytelis'' Wagler 1832 * Superb parrot or parakeet ''Polytelis swainsonii'' (Desmarest) 1826 * Regent parrot or parakeet ''Polytelis anthopeplus'' (Lear) 1831 :* ''Polytelis anthopeplus anthopeplus'' (Lear) 1831 :*''Polytelis anthopeplus monarchoides'' Schodde 1993 * Princess parrot The colourful princess parrot (''Polytelis alexandrae'') is an Australian bird of the parrot family. Its name was given in honour of Princess Alexandra of Denmark, who in 1863 married the Princ ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Desert Oak
Desert oak may refer to several Australian tree species with narrow, needle-like leaves or stems, including: * ''Acacia coriacea'' * ''Acacia sericophylla'' * ''Allocasuarina decaisneana ''Allocasuarina decaisneana'' or desert oak is a medium-sized, slow-growing tree found in the dry desert regions of the Northern Territory, South Australia and Western Australia. The Anangu peoples know the tree as kurkara. Description Th ...'' {{Short pages monitor ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Opportunistic Breeders
Flexible or opportunistic breeders mate whenever the conditions of their environment become favorable. Their ability and motivation to mate are primarily independent of day-length (photoperiod) and instead rely on cues from short-term changes in local conditions like rainfall, food abundance and temperature. Another factor is the presence of suitable breeding sites, which may only form with heavy rain or other environmental changes.WE Duellman, L Trueb. ''Biology of amphibians.'' The Johns Hopkins University Press, 1994, p. 20 Thus, they are distinct from seasonal breeders that rely on changes in day length to induce entry into estrus and to cue mating, and continuous breeders like humans that can mate year-round. Other categories of breeders that perhaps can be subdivided under the heading "opportunistic" have been used to describe many species, such as many that are anurans like frogs. These include sporadic wet and sporadic dry, describing animals that breed sporadically not alway ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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