Tuesday, February 09, 2010

Parrot Species

Parrots can be found in all tropical and subtropical continents including Australia and islands in the Pacific, South Asia, Southeast Asia, southern parts of North America, South America and Africa.


Some Caribbean and Pacific islands are home to endemic species. By far the greatest number of parrot species come from Australasia and South America. The Lories and lorikeets range from Sulawesi and the Philippines in the north to Australia and across the Pacific Ocean as far as French Polynesia, with the greatest diversity found in and around New Guinea.


Having Arina The family includes all Neotropical parrots, including Amazons, macaws and conures, and ranges from northern Mexico and the Bahamas to Tierra del Fuego at the southern tip of South America.


The pygmy parrots, the family Micropsittinae is a small genus restricted to New Guinea. That the family Nestorinae three species of different parrots from New Zealand. The broad-tailed parrots, the family Platycercinae is limited to Australia, New Zealand and the Pacific Islands as far as Fiji. The final true parrot subgroup psittacina includes a number of species from Australia and New Guinea to the species found in South Asia and Africa.


In mid-cockatoo biodiversity is Australia and New Guinea, although some species reach the Solomon Islands (and a species that previously took place in New Caledonia), Indonesia and the Philippines.


Several parrot species enter the cool, temperate regions of South America and New Zealand. One species, the Carolina Parakeet existed in temperate North America, but were hunted to extinction in the Early 20th century. Many species have been introduced in areas with temperate climates, and have established stable populations in several U.S. States, United Kingdom and Spain.


While a few parrot species are wholly sedentary or fully migratory, the majority fall somewhere between the two, making poorly understood regional movements, some species adopting an entirely nomadic lifestyle.


Surviving species, which vary in size from the Buff-faced Pygmy Parrot, less than 10 grams (0.35 oz.) In weight and 8 cm (3.2 inches) in length, to the Hyacinth Macaw, at 1.0 meters (3, 3 feet) in length and the Kakapo, at 4.0 kg (8.8 lbs) in weight.


Among the families are the three species Nestoridae all large parrots, and cockatoos tend to be large birds. It Psittacidae parrots are much more variable, ranging the full spectrum of sizes shown by the family. The most obvious physical characteristic that characterizes parrots is their strong, curved, broad bill.


The upper mandible is prominent, curves downward and come to a point. It is not fused to the skull, which makes it possible to move independently and contribute to the tremendous biting pressure these birds are able to exert. The mandible is shorter, with a sharp, upward face front, which moves against the surface of the upper part of the mandible in an anvil-like manner.


Seed eating parrots have a strong tongue which helps to manipulate seeds or position nuts in the bill so that the mandibles can apply an appropriate blasting force. The head is large, with eyes positioned sideways, which limits binocular vision, but greatly enhances peripheral vision. Cockatoo species have a mobile top of feathers atop their heads, which can be raised for display, and retracted.


No other parrots can do it, but Pacific Vini lorikeets in genera and Phigys is able to ruffle the feathers of the crown and neck. The predominant color in the plumage of parrots is green, although most species have some red or another color in small quantities.


Cockatoos are the most important exception to this, having lost the green and blue plumage color in their evolutionary history, they are now predominantly black or white with a red, pink or yellow. Strong sexual dimorphism in plumage is not typically among the parrots, with some notable exceptions, the most striking is the Eclectus Parrot.

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