Saturday, May 3, 2008

Heaviest Bird Ever Alive - 2 candidates


(contribution by Christoph Kulmann)

Elephant BirdThe Elephant Bird (shown above under biggest eggs) is thought to have been the inspiration for the Roc (or Ruhk) made famous in the stories of Sinbad and the accounts of Marco Polo. While Aepyornis was by no means as large and terrible as the elephant-eating Roc, it WAS one of the largest birds that ever lived. The flightless bird grew to around ten or eleven feet tall, and is estimated to have weighed up to 1100 pounds. By comparison, a BIG Ostrich will go eight feet and 300 pounds. The home of the Elephant Bird was the island of Madagascar, off the eastern coast of Africa. The island was first populated by African and Indonesian peoples that are thought to have arrived around the time of Christ, about 2000 years ago. They were, in turn, visited by Muslim traders from East Africa and the Comoro Islands in the ninth century. The first Europeans to visit the island were the Portuguese in 1500, but Europeans didn’t really establish a foothold on the island until the French settled there beginning in 1642. The Elephant Bird was probably still around at that time but it had already become very rare. One of the only contemporary European accounts of the bird was written by the first French Governor of Madagascar, Étienne de Flacourt, who wrote, in 1658, "vouropatra - a large bird which haunts the Ampatres and lays eggs like the ostriches; so that the people of these places may not take it, it seeks the most lonely places." The natives’ histories of the Elephant Bird, however, rarely describe it as an aggressive bird, and more often portray it as a shy, peaceful giant. Most likely the Vouron Patra was driven to extinction by people raiding their nests. The eggs and egg shells were both very important items to the tribal Malagasy, who used them for food and all kinds of stuff. The fossil record shows that maximus was not the only species of Aepyornis that ever lived. It is thought that between three and seven different types of Elephant Bird have lived since the Pleistocene although only one, the smaller Aepyornis mullerornis is thought to have survived into historic times along with the Elephant Bird. Only the giant is known to have co-existed with humans, and by 1700, it too was gone.

Only the largest of the New Zealand Moas were taller, some reaching thirteen feet, but they weren’t as massively built. Moa were large flightless birds that went extinct in the late 1700’s or early 1800’s. These huge, bulky birds lived in lowland forests on the islands of New Zealand. The word moa comes from the Maori language, in which the plural of moa is moa (we are using that convention). The oldest-known moa fossils date from 2.4 million years ago. The last of the moa (the smaller species) lived on the South Island of New Zealand until the 1700’s. On its native New Zealand, there were no large mammals to prey on the moa or its eggs; its only predators large birds, like the Haast eagle (which is now extinct). When the Maori people moved to New Zealand over 1,000 years ago, they destroyed much of the moa’s lowland forest habitat and introduced mammals, including dogs and rats. These mammals ate the moa’s eggs. The Maori people also hunted and ate the moa. These forces probably contributed to the extinction of the moa. The moa had a large body, a small head, a long neck, short, thick legs, and a large beak. There were 11 species of moa. The largest was almost 11.5 feet (3.5 m) tall and weighed perhaps 700 pounds (320 kg); the smallest of the moa were turkey-sized. The moa’s nest was located on the ground (leaving the eggs vulnerable to predators). The moa was an herbivore (plant-eater); it ate fruit and some plant material (like leaves). These birds swallowed stones (which went into gizzard) that helped digest the food. Classification: Kingdom Animalia (animals), phylum Chordata, subphylum Vertebrata (vertebrates), class Aves (birds), order Dinornithiformes, family Anomalopterygidae (the lesser moa) and family Dinornithidae (the greater moa). There were 11 (or possibly 13) different species of moa, including Dinornis, the biggest moa and the biggest bird that ever lived.

In ancient Australia, until 50,000 years ago, there was a group of birds called the Dromornithids. By far the largest of them was "Dromornis stirtoni", a massive creature that stood 3 meters tall and must have weighed more than half a ton. They disappeared rather abruptly, and there is still much debate about the reasons. But the Australians seem to have kept a memory of these giant birds. In some legends, there is a creature called "mihirung", and most likely this means a dromornithid bird.

Smelliest Bird

The south American hoatzin (Opisthocomus hoazin) has an odor similar to cow manure. Colombians call it pava hedionda ("stinking pheasant"). The cause of the smell is believed to be a combination of its diet of green leaves and its specialized digestive system, which involves a kind of foregut fermentation.

Large Flocks

Flamingoes, with their long necks and legs, have a height range of 3-5 feet and are the biggest bird to form large flocks. Of the four species, the lesser flamingo (Phoeniconaias minor) of eastern and southern Africa has been seen in flocks of several million birds, particularly in the Great Lakes of eastern Africa.

Biggest Bird

The largest and strongest living bird is the North African ostrich (Struthio camelus . Males can be up to 9 feet tall and weigh 345 pounds, and when fully grown the have one of the most advanced immune systems of any animal. South Africa was the first country to see the commercial potential of ostrich products - the creature are prized not only for their large soft white feathers and their meat but also for their skins, which are made into the strongest commercially available leather in the world. Ostrich farming is believed to have begun in the Karoo and Eastern Cape c. 1863. By 1910 there were more than 20,000 domesticated ostriches in the country, and by 1913 ostrich feathers were the fourth most important south African export product. Demand began to dry up soon afterwards, but there was an ostrich revival in the 1920’s when farmers started to produce biltong ( dry strips of ostrich meat) commercially.

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