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Red-crowned Parakeet
The red-crowned parakeet (''Cyanoramphus novaezelandiae''), also known as red-fronted parakeet and by its Māori name of kākāriki,Parr, M., Juniper, T., D'Silva, C., Powell, D., Johnston, D., Franklin, K., & Restall, R. (2010). Parrots: A Guide to Parrots of the World: Bloomsbury Publishing. is a small parrot from New Zealand. It is characterised by its bright green plumage and the red pattern on its head. This versatile bird can feed on a variety food items and can be found in many habitat types. It used to be classified as near threatened as invasive predators had pushed it out of its historical range but it is now at least concern. This species used to occupy the entire island, but is now confined to only a few areas on the mainland and some offshore islands. Taxonomy The red-crowned parakeet is a member of the order Psittaciformes, also known as the parrots. It is part of the genus '' Cyanoramphus'', which currently includes 12 species of parakeets. ''C. novaezelandiae ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Red-crowned Parakeet (South America)
The rose-fronted parakeet (''Pyrrhura roseifrons''), also known as the red-crowned parakeet (leading to easy confusion with the '' Cyanoramphus novaezelandiae''), or, in aviculture, the rose-fronted conure, is a species of parrot in the family Psittacidae. It is found in the western Amazon basin in eastern Peru, far south-eastern Ecuador, north-western Bolivia and far western Brazil. It includes the wavy-breasted parakeet (''P. roseifrons peruviana''), also known as the wavy-breasted conure, which sometimes is considered a separate species (''see Taxonomy''). Description Total length c. . As other members of the '' Pyrrhura picta'' complex, it is a long-tailed mainly green parakeet with a dark red belly, rump and tail-tip (tail all dark red from below), a grey-scaled chest, a whitish or dull yellow patch on the auriculars and bluish remiges. The forehead, ocular region and carpal edge are red in the nominate race (''P. r. roseifrons''). Its bare eye-ring is typically dark grey ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lord Howe Parakeet
The Lord Howe parakeet (''Cyanoramphus subflavescens''), also known as the Lord Howe red-fronted parakeet, is an extinct parrot endemic to Lord Howe Island in the Tasman Sea, part of New South Wales, Australia. It was described as full species by Tommaso Salvadori in 1891, but subsequently it has been regarded as subspecies of the red-crowned parakeet. In 2012, the IOC World Bird List recognised it as species.IOC world birdnames Taxonomy Pending molecular analysis, Christidis & Boles (2008) have suggested on grounds that the taxon is likely to be most closely related to the[...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cyanoramphus Novaezelandiae -Nga Manu Nature Reserve, Waikanae, New Zealand-8
''Cyanoramphus'' is a genus of parakeets native to New Zealand and islands of the southern Pacific Ocean. The New Zealand forms are often referred to as kākāriki. They are small to medium-sized parakeets with long tails and predominantly green plumage. Most species are forest species, although several of the subantarctic species live in open grassland. The genus formerly had a disjunct distribution, with two species found in the Society Islands and the majority of the genus ranging from New Caledonia to Macquarie Island, but absent from the in between. Despite many fossil birds being found in the islands between these two areas being found none of these were of undescribed ''Cyanoramphus'' species. Like many other species of birds the ''Cyanoramphus'' parakeets have suffered from changes brought about by humans. The two species from the Society Islands, the black-fronted parakeet and the Society parakeet, have become extinct as have the subspecies from Lord Howe Island and ... [...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 b ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Crown (anatomy)
The crown is the top portion of the head behind the vertex. The anatomy of the crown varies between different organisms. The human crown is made of three layers of the scalp above the skull. The crown also covers a range of bone sutures, and contains blood vessels and branches of the trigeminal nerve. The structure of the human crown provides a protective cavity for the brain and optimizes the crown's ability to ensure the neocortex is safe. Different parts of the neocortex, such as the frontal lobe and the parietal lobe, are protected by the meninges and bone structures. Other organisms, such as whales, have their blowholes on their crown, causing a flattened head shape. Some bird species have a crest located on their crown, used for communication and courtship. Macroevolution of the human crown has led to different structures between modern and archaic human species, such as significant changes to the cranial vault. The human crown is prone to different injuries and dis ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lore (anatomy)
The lore (adj. loreal) is the region between the eyes and nostrils of birds, reptiles, and amphibians. Ornithology In ornithology, the lore is the region between the eye and bill on the side of a bird's head. This region is sometimes featherless, and the skin may be tinted, as in many species of the cormorant family. This area, which is directly in front of the eye, features a "loral stripe" in many bird species including the red-capped plover. Herpetology In amphibians and reptiles, lore pertains to the regions immediately adjacent to the eyes and between the eyes and nostrils. These are analogous to the lore on birds which corresponds to the region between the eye and the beak. In snakes and reptiles, a loreal scale also refers to the scales which lie between the eye and the nostril. In crotaline snakes (pit vipers), loreal pits are present on either side of the head.Campbell JA, Lamar WW. 2004. The Venomous Reptiles of the Western Hemisphere. 2 volumes. Comstock Publishing ... [...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 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Genus Platycercus
Genus ( plural genera ) is a taxonomic rank used in the biological classification of living and fossil organisms as well as viruses. In the hierarchy of biological classification, genus comes above species and below family. In binomial nomenclature, the genus name forms the first part of the binomial species name for each species within the genus. :E.g. ''Panthera leo'' (lion) and ''Panthera onca'' (jaguar) are two species within the genus '' Panthera''. ''Panthera'' is a genus within the family Felidae. The composition of a genus is determined by taxonomists. The standards for genus classification are not strictly codified, so different authorities often produce different classifications for genera. There are some general practices used, however, including the idea that a newly defined genus should fulfill these three criteria to be descriptively useful: # monophyly – all descendants of an ancestral taxon are grouped together (i.e. phylogenetic analysis should clearly demon ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Macquarie Parakeet
The Macquarie parakeet (''Cyanoramphus erythrotis''), also known as the Macquarie Island parakeet, is an extinct parrot from subantarctic Macquarie Island, an outlying part of Tasmania, Australia, in the Southern Ocean. Taxonomy The Macquarie parakeet was previously considered to be a subspecies of the red-fronted parakeet ''C. novaezelandiae'', which it resembled in appearance, but was later lumped with Reischek's parakeet from the Antipodes Islands in a 2001 paper by Wee Ming Boon and others following an examination of the molecular systematics of the genus which found that many of the red-crowned parakeet subspecies should be elevated to full species.Boon, Wee Ming; Kearvell, Jonathan C.; Daugherty, Charles H.; & Chambers, Geoffrey K. (2001). Molecular systematics and conservation of kakariki (''Cyanoramphus spp.''). ''Science for Conservation'' 176. Dept of Conservation:Wellington, New Zealand. However, subsequently the provenance of Boon ''et al.''’s supposed Macquarie Is ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hybridisation (biology)
In biology, a hybrid is the offspring resulting from combining the qualities of two organisms of different breeds, varieties, species or genera through sexual reproduction. Hybrids are not always intermediates between their parents (such as in blending inheritance), but can show hybrid vigor, sometimes growing larger or taller than either parent. The concept of a hybrid is interpreted differently in animal and plant breeding, where there is interest in the individual parentage. In genetics, attention is focused on the numbers of chromosomes. In taxonomy, a key question is how closely related the parent species are. Species are reproductively isolated by strong barriers to hybridisation, which include genetic and morphological differences, differing times of fertility, mating behaviors and cues, and physiological rejection of sperm cells or the developing embryo. Some act before fertilization and others after it. Similar barriers exist in plants, with differences in flowering tim ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hybrid (biology)
In biology, a hybrid is the offspring resulting from combining the qualities of two organisms of different breeds, varieties, species or genera through sexual reproduction. Hybrids are not always intermediates between their parents (such as in blending inheritance), but can show hybrid vigor, sometimes growing larger or taller than either parent. The concept of a hybrid is interpreted differently in animal and plant breeding, where there is interest in the individual parentage. In genetics, attention is focused on the numbers of chromosomes. In taxonomy, a key question is how closely related the parent species are. Species are reproductively isolated by strong barriers to hybridisation, which include genetic and morphological differences, differing times of fertility, mating behaviors and cues, and physiological rejection of sperm cells or the developing embryo. Some act before fertilization and others after it. Similar barriers exist in plants, with differences in flowering t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Yellow-crowned Parakeet
The yellow-crowned parakeet (''Cyanoramphus auriceps'') is a species of parakeet endemic to the islands of New Zealand. The species is found across the main three islands of New Zealand, North Island, South Island and Stewart Island/Rakiura, as well as on the subantarctic Auckland Islands. It has declined due to predation from introduced species such as stoats, although unlike the red-crowned parakeet, it has not been extirpated from the mainland of New Zealand. Its Māori name is ''kākāriki''. History The yellow-crowned parakeet was once widely distributed across all of New Zealand, both the main islands and the outlying ones. However, due to both the aforementioned introduced mammals and human destruction of habitat, these parakeets have become much scarcer in the last few decades. While uncommon, they are still the most common parakeet in New Zealand. Taxonomy This species was first described by Heinrich Kuhl in 1820 and originally named ''Psittacus auriceps''. Descrip ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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