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Macaw (metadata Software)
Macaws are a group of New World parrots that are long-tailed and often colorful, in the tribe Arini. They are popular in aviculture or as companion parrots, although there are conservation concerns about several species in the wild. Biology Of the many different Psittacidae (true parrots) genera, six are classified as macaws: ''Ara'', ''Anodorhynchus'', '' Cyanopsitta'', ''Primolius'', ''Orthopsittaca'', and ''Diopsittaca''. Previously, the members of the genus ''Primolius'' were placed in ''Propyrrhura'', but the former is correct in accordance with ICZN rules. In addition, the related macaw-like thick-billed parrot is sometimes referred to as a "macaw", although it is not phylogenetically considered to be a macaw species. Macaws are native to Central America and North America (only Mexico), South America, and formerly the Caribbean. Most species are associated with forests, but others prefer woodland or savannah-like habitats.Abramson, J., Speer, B. L., & Thomsen, J.B. 199 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Blue-and-yellow Macaw
The blue-and-yellow macaw (''Ara ararauna''), also known as the blue-and-gold macaw, is a large South American parrot with mostly blue top parts and light orange underparts, with gradient hues of green on top of its head. It is a member of the large group of neotropical parrots known as macaws. It inhabits forest (especially varzea, but also in open sections of ''terra firme'' or unflooded forest), woodland and savannah of tropical South America. They are popular in aviculture because of their striking color, ability to talk, ready availability in the marketplace, and close bonding to humans. They can also live for 65–70 years. Taxonomy The blue-and-yellow macaw was formally described by the Swedish naturalist Carl Linnaeus in 1758 in the tenth edition of his ''Systema Naturae''. He placed it with all the other parrots in the genus ''Psittacus'' and coined the binomial name ''Psittacus ararauna''. This macaw is now one of the eight extant species placed in the genus ''Ara' ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
North America
North America is a continent in the Northern Hemisphere and almost entirely within the Western Hemisphere. It is bordered to the north by the Arctic Ocean, to the east by the Atlantic Ocean, to the southeast by South America and the Caribbean Sea, and to the west and south by the Pacific Ocean. Because it is on the North American Plate, North American Tectonic Plate, Greenland is included as a part of North America geographically. North America covers an area of about , about 16.5% of Earth's land area and about 4.8% of its total surface. North America is the third-largest continent by area, following Asia and Africa, and the list of continents and continental subregions by population, fourth by population after Asia, Africa, and Europe. In 2013, its population was estimated at nearly 579 million people in List of sovereign states and dependent territories in North America, 23 independent states, or about 7.5% of the world's population. In Americas (terminology)#Human ge ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Endangered Species
An endangered species is a species that is very likely to become extinct in the near future, either worldwide or in a particular political jurisdiction. Endangered species may be at risk due to factors such as habitat loss, poaching and invasive species. The International Union for Conservation of Nature (IUCN) Red List lists the global conservation status of many species, and various other agencies assess the status of species within particular areas. Many nations have laws that protect conservation-reliant species which, for example, forbid hunting, restrict land development, or create protected areas. Some endangered species are the target of extensive conservation efforts such as captive breeding and habitat restoration. Human activity is a significant cause in causing some species to become endangered. Conservation status The conservation status of a species indicates the likelihood that it will become extinct. Multiple factors are considered when assessing the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Zygodactyl
In biology, dactyly is the arrangement of digits (fingers and toes) on the hands, feet, or sometimes wings of a tetrapod animal. It comes from the Greek word δακτυλος (''dáktylos'') = "finger". Sometimes the ending "-dactylia" is used. The derived adjectives end with "-dactyl" or "-dactylous". As a normal feature Pentadactyly Pentadactyly (from Greek "five") is the condition of having five digits on each limb. It is traditionally believed that all living tetrapods are descended from an ancestor with a pentadactyl limb, although many species have now lost or transformed some or all of their digits by the process of evolution. However, this viewpoint was challenged by Stephen Jay Gould in his 1991 essay "Eight (Or Fewer) Little Piggies", where he pointed out polydactyly in early tetrapods and described the specializations of digit reduction. Despite the individual variations listed below, the relationship is to the original five-digit model. In reptiles, the limbs ar ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Woodpecker
Woodpeckers are part of the bird family Picidae, which also includes the piculets, wrynecks, and sapsuckers. Members of this family are found worldwide, except for Australia, New Guinea, New Zealand, Madagascar, and the extreme polar regions. Most species live in forests or woodland habitats, although a few species are known that live in treeless areas, such as rocky hillsides and deserts, and the Gila woodpecker specialises in exploiting cacti. Members of this family are chiefly known for their characteristic behaviour. They mostly forage for insect prey on the trunks and branches of trees, and often communicate by drumming with their beaks, producing a reverberatory sound that can be heard at some distance. Some species vary their diet with fruits, birds' eggs, small animals, tree sap, human scraps, and carrion. They usually nest and roost in holes that they excavate in tree trunks, and their abandoned holes are of importance to other cavity-nesting birds. They sometimes com ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Toucan
Toucans (, ) are members of the Neotropical near passerine bird family Ramphastidae. The Ramphastidae are most closely related to the American barbets. They are brightly marked and have large, often colorful bills. The family includes five genera and over forty different species. Toucans are arboreal and typically lay 2–4 white eggs in their nests. They make their nests in tree hollows and holes excavated by other animals such as woodpeckers—the toucan bill has very limited use as an excavation tool. When the eggs hatch, the young emerge completely naked, without any down. Toucans are resident breeders and do not migrate. Toucans are usually found in pairs or small flocks. They sometimes fence with their bills and wrestle, which scientists hypothesize they do to establish dominance hierarchies. In Africa and Asia, hornbills occupy the toucans' ecological niche, an example of convergent evolution. Taxonomy and systematics The name of this bird group is derived from the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Parrot
Parrots, also known as psittacines (), are birds of the roughly 398 species in 92 genera comprising the order Psittaciformes (), found mostly in tropical and subtropical regions. The order is subdivided into three superfamilies: the Psittacoidea ("true" parrots), the Cacatuoidea (cockatoos), and the Strigopoidea (New Zealand parrots). One-third of all parrot species are threatened by extinction, with higher aggregate extinction risk ( IUCN Red List Index) than any other comparable bird group. Parrots have a generally pantropical distribution with several species inhabiting temperate regions in the Southern Hemisphere, as well. The greatest diversity of parrots is in South America and Australasia. Characteristic features of parrots include a strong, curved bill, an upright stance, strong legs, and clawed zygodactyl feet. Many parrots are vividly coloured, and some are multi-coloured. Most parrots exhibit little or no sexual dimorphism in the visual spectrum. They form the most ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Aratinga
''Aratinga'' is a genus of South American conures. Most are predominantly green, although a few are predominantly yellow or orange. They are social and commonly seen in groups in the wild. In Brazil, the popular name of several species usually is ''jandaia'', sometimes written as ''jandaya'' in the scientific form. Many species from this genus are popular pets, although being larger than the members of the genus ''Pyrrhura'', they need a sizable aviary to thrive. Taxonomy The genus ''Aratinga'' was introduced in 1824 by the German naturalist Johann Baptist von Spix. The type species was subsequently designated as the sun parakeet. The genus name is from the extinct Tupi language of Brasil. ''Ará tinga'' means "bright bird" or "bright parrot". The taxonomy of this genus has recently been resolved by splitting it in four genera, as the genus as previously defined was paraphyletic. The species of the '' Aratinga solstitialis'' complex, were retained in this genus, while other form ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mini-macaws
Mini-macaws are a loosely defined group of small-to-medium-sized macaw species within the tribe Arini. The term has no fixed taxonomic meaning and is principally used in aviculture to describe a small macaw belonging to one of a number of different genera, with overall length being the sole criterion for inclusion. Any macaw with an overall length (including the tail) of less than about 50 cm (20 inches) can be described as a "mini-macaw". Additionally, the "mini-" prefix may be added to the species name when describing the bird in question (e.g. "red-shouldered mini-macaw"). Mini-macaws are explicitly demarcated from large macaws in the Portuguese language by the term "maracanã", as opposed to "arara". In the pet trade, the term can be used to suggest that the species in question is better suited as a companion parrot for owners with less space in their homes than would be required by one of the larger macaw species. However, most mini-macaws (aside from the red-shouldered ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Red-and-green Macaw
The red-and-green macaw (''Ara chloropterus''), also known as the green-winged macaw, is a large, mostly-red macaw of the genus ''Ara''. This is the largest of the genus ''Ara'', widespread in the forests and woodlands of northern and central South America. However, in common with other macaws, in recent years there has been a marked decline in its numbers due to habitat loss and illegal capture for the parrot trade. Description The green-winged macaw can be readily distinguished from the scarlet macaw. While the breast of both birds are bright red, the upper-wing covert feathers of the green-winged macaw is mostly green (as opposed to mostly yellow, or a strong mix of yellow and green in the scarlet macaw). In addition, the green-winged macaw has characteristic red lines around the eyes formed by rows of tiny feathers on the otherwise bare white skin patch; this is one of the biggest differences from a scarlet macaw to the casual viewer. Iridescent teal feathers are surrounded ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Great Green Macaw
The great green macaw (''Ara ambiguus''), also known as Buffon's macaw or the great military macaw, is a Central and South American parrot found in Nicaragua, Honduras, Costa Rica, Panama, Colombia and Ecuador. Two allopatric subspecies are recognized; the nominate subspecies, ''Ara ambiguus'' ssp. ''ambiguus'', occurs from Honduras to Colombia, while ''Ara ambiguus'' ssp. ''guayaquilensis'' appears to be endemic to remnants of dry forests on the southern Pacific coast of Ecuador. The nominate subspecies lives in the canopy of wet tropical forests and in Costa Rica is usually associated with the ''almendro'' tree, '' Dipteryx oleifera''. Taxonomy The great green macaw belongs to the genus ''Ara'', which includes other large parrots, such as the scarlet macaw, the military macaw, and the blue-and-yellow macaw. This bird was first described and illustrated in 1801 by the French naturalist François Le Vaillant for his ''Histoire Naturelle Des Perroquets'' under the name "le gra ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hyacinth Macaw
The hyacinth macaw (''Anodorhynchus hyacinthinus''), or hyacinthine macaw, is a parrot native to central and eastern South America. With a length (from the top of its head to the tip of its long pointed tail) of about one meter it is longer than any other species of parrot. It is the largest macaw and the largest flying parrot species; the flightless kākāpō of New Zealand outweighs it at up to 3.5 kg. While generally easily recognized, it could be confused with the smaller Lear's macaw. Habitat loss and the trapping of wild birds for the pet trade have taken a heavy toll on their population in the wild, so the species is classified as Vulnerable on the International Union for Conservation of Nature's Red List, and it is protected by its listing on Appendix I of the Convention on International Trade in Endangered Species of Wild Fauna and Flora (CITES). Taxonomy English physician, ornithologist, and artist John Latham first described the hyacinth macaw in 1790 under ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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