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 Post subject: They don't have EMUs in California
PostPosted: Sat Jan 26, 2008 11:14 am 
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Apart from the zoos, I suppose.

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 Post subject: Re: They don't have EMUs in California
PostPosted: Sat Jan 26, 2008 3:53 pm 
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Says you, pal.

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 Post subject: Re: They don't have EMUs in California
PostPosted: Sat Jan 26, 2008 5:29 pm 
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Actually, emu and ostrich farms are fairly common in the states.

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 Post subject: Re: They don't have EMUs in California
PostPosted: Sat Jan 26, 2008 5:37 pm 
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Please elaborate.

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 Post subject: Re: They don't have EMUs in California
PostPosted: Sat Jan 26, 2008 5:41 pm 
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Please elaborate.

hope this is what you were looking for :D
Emu

Conservation status

Least Concern (IUCN)
Scientific classification
Kingdom: Animalia
Phylum: Chordata
Class: Aves
Order: Struthioniformes
Family: Casuariidae
Genus: Dromaius
Species: D. novaehollandiae
Binomial name
Dromaius novaehollandiae
(Latham, 1790)
The Emu has been recorded in the areas shown in pink.
The Emu has been recorded in the areas shown in pink.
Synonyms

Dromiceius novaehollandiae

The Emu (pronunciation: IPA: /ˈiːmjuː/[1][2]), Dromaius novaehollandiae, is the largest bird native to Australia and the only extant member of the genus Dromaius. It is also the second-largest extant bird in the world by height, after its ratite relative, the ostrich. The soft-feathered, brown, flightless birds reach up to 2 m (6 ft) in height. The Emu is common over most of mainland Australia, although it avoids heavily populated areas, dense forest and arid areas. Emus can travel great distances at a fast, economical trot and, if necessary, can sprint at 50 km/h (30 mph) for some distance at a time.[3] They are opportunistically nomadic and may travel long distances to find food; they feed on a variety of plants and insects.

The Emu subspecies that previously inhabited Tasmania became extinct after the European settlement of Australia in 1788; and the distribution of the mainland subspecies has been influenced by human activities. Once common on the east coast, Emu are now uncommon; by contrast, the development of agriculture and the provision of water for stock in the interior of the continent have increased the range of the Emu in arid regions. Emus are farmed for their meat, oil and leather.
Contents
[hide]

* 1 Taxonomy and distribution
o 1.1 Classification
* 2 Description
* 3 Ecology and behaviour
o 3.1 Diet
o 3.2 Reproduction
* 4 Relationship with humans
o 4.1 Conservation status
o 4.2 Economic value
o 4.3 Cultural references
* 5 See also
* 6 References
* 7 External links

[edit] Taxonomy and distribution

The emu was first described under the name of the New Holland Cassowary in Arthur Phillip's Voyage to Botany Bay, published in 1789.[4] The species was named by ornithologist John Latham, who collaborated on Phillip's book and provided the first descriptions of and names for many Australian bird species; its name is Latin for "fast-footed New Hollander". The etymology of the common name Emu is uncertain, but is thought to have come from an Arabic word for large bird that was later used by Portuguese explorers to describe the related Cassowary in New Guinea.[5] In Victoria, some terms for the emu were Barrimal in the Djadja wurrung language, myoure in Gunai, and courn in Jardwadjali.[6]

In his original 1816 description of the emu, Vieillot used two generic names; first Dromiceius, then Dromaius a few pages later. It has been a point of contention ever since which is correct; the latter is more correctly formed, but the convention in taxonomy is that the first name given stands, unless it is clearly a typographical error.[7] Most modern publications, including those of the Australian government,[8] use Dromaius, with Dromiceius mentioned as an alternative spelling.

[edit] Classification
Emu eyes are golden brown to black. The naked skin on the neck is bluish-black
Emu eyes are golden brown to black. The naked skin on the neck is bluish-black

The Emu is classified in the family with their closest relatives the Cassowaries in the family Casuariidae in the ratite order Struthioniformes. However an alternate classification has been proposed splitting the Casuariidae into their own order Casuariformes.

Three different Dromaius species were common in Australia before European settlement, and one species is known from fossils. The small emus — Dromaius baudinianus and D. ater — both became extinct shortly after; however, the Emu, D. novaehollandiae, remains common. The population varies from decade to decade, largely dependent on rainfall; it is estimated that the Emu population is 625,000–725,000, with 100,000–200,000 in Western Australia and the remainder mostly in New South Wales and Queensland.[5] D. novaehollandiae diemenensis, a subspecies known as the Tasmanian Emu, became extinct around 1865. Emus were introduced to Maria Island off Tasmania and Kangaroo Island near South Australia during the 20th century. The Kangaroo Island birds have established a breeding population there. The Maria Island population became extinct in the mid-1990s.

There are three extant subspecies in Australia:

* In the southeast, D. novaehollandiae novaehollandiae, with its whitish ruff when breeding;
* In the north, D. novaehollandiae woodwardi, slender and paler; and
* In the southwest, D. novaehollandiae rothschildi, darker, with no ruff during breeding.

[edit] Description
Emus have only three toes in a tridactyl arrangement; this adaptation for running is seen in other bird species, such as bustards and quails. The Ostrich has only two toes
Emus have only three toes in a tridactyl arrangement; this adaptation for running is seen in other bird species, such as bustards and quails. The Ostrich has only two toes

Emus are large birds. The largest can reach up to two metres (6 ft 7 inches) in height (1–1.3 metres (3.2–4.3 ft) at the shoulder) and weigh between 30 and 45 kilograms (66–100 pounds).[5] They have small vestigial wings and a long neck and legs. Their ability to run at high speeds is due to their highly specialised pelvic limb musculature. Their feet have only three toes and a similarly reduced number of bones and associated foot muscles; they are the only birds with gastrocnemius muscles in the back of the lower legs. The pelvic limb muscles of Emus have a similar contribution to total body mass as the flight muscles of flying birds.[9]

Emus have brown to grey-brown plumage of shaggy appearance; the shafts and the tips of the feathers are black. Solar radiation is absorbed by the tips, and the loose-packed inner plumage insulates the skin. The resultant heat is prevented from flowing to the skin by the insulation provided by the coat,[10] allowing the bird to be active during the heat of the day. A unique feature of the Emu feather is its double rachis emerging from a single shaft. The sexes are similar in appearance.

On very hot days, Emus pant to maintain their body temperature, their lungs work as evaporative coolers and, unlike some other species, the resulting low levels of carbon dioxide in the blood do not appear to cause alkalosis.[11] For normal breathing in cooler weather, they have large, multifolded nasal passages. Cool air warms as it passes through into the lungs, extracting heat from the nasal region. On exhalation, the Emu's cold nasal turbinates condense moisture back out of the air and absorb it for reuse.[12]

Their calls consist of loud booming, drumming and grunting sounds that can be heard up to two kilometers away. The booming sound is created in an inflatable neck sac.[5]

[edit] Ecology and behaviour

Emus live in most habitats across Australia, although they are most common in areas of sclerophyll forest and savanna woodland, and least common in populated and very arid areas. Emus are largely solitary, and while they can form enormous flocks, this is an atypical social behaviour that arises from the common need to move towards food sources. Emus have been shown to travel long distances to reach abundant feeding areas. In Western Australia, Emu movements follow a distinct seasonal pattern — north in summer and south in winter. On the east coast their wanderings do not appear to follow a pattern.[13] Emus are also able to swim when necessary.

[edit] Diet

Emus forage in a diurnal pattern. They eat a variety of native and introduced plant species; the type of plants eaten depends on seasonal availability. They also eat insects, including grasshoppers and crickets, lady birds, soldier and saltbush caterpillars, Bogong and cotton-boll moth larvae and ants.[14] In Western Australia, food preferences have been observed in travelling Emus: they eat seeds from Acacia aneura until it rains, after which they eat fresh grass shoots and caterpillars; in winter they feed on the leaves and pods of Cassia[verification needed]; in spring, they feed on grasshoppers and the fruit of Santalum acuminatum: a sort of quandong.[3][15] Emus serve as an important agent for the dispersal of large viable seeds, which contributes to floral biodiversity.[16][15]

[edit] Reproduction
Emu chicks have distinctive bilateral stripes that help to camouflage them
Emu chicks have distinctive bilateral stripes that help to camouflage them

Emus form breeding pairs during the summer months of December and January, and may remain together for about five months. Mating occurs in the cooler months of May and June. During the breeding season, males experience hormonal changes, including an increase in luteinizing hormone and testosterone levels, and their testicles double in size.[17] Males lose their appetite and construct a rough nest in a semi-sheltered hollow on the ground from bark, grass, sticks and leaves. The pair mates every day or two, and every second or third day the female lays an average of 11 (and as many as 20) very large, thick-shelled, dark-green eggs. The eggs are on average 134 x 89 millimeters (5.3 x 3.5 inches) and weigh between 700 and 900 grams (1.5–2 pounds),[18] which is roughly equivalent to 10–12 chicken eggs in volume and weight. The first verified occurrence of genetically identical avian twins was demonstrated in the Emu.[19]

The male becomes broody after his mate starts laying, and begins to incubate the eggs before the laying period is complete. From this time on, he does not eat, drink or defecate, and stands only to turn the eggs, which he does about 10 times a day. Over eight weeks of incubation, he will lose a third of his weight and will survive only on stored body-fat and on any morning dew that he can reach from the nest. As with many other Australian birds, such as the Superb Fairy-wren, infidelity is the norm for Emus, despite the initial pair-bond: once the male starts brooding, the female mates with other males and may lay in multiple clutches; thus, as many as half the chicks in a brood may be fathered by others, or by neither parent as Emus also exhibit brood parasitism.[20] Some females stay and defend the nest until the chicks start hatching, but most leave the nesting area completely to nest again; in a good season, a female Emu may nest three times.[13]

Incubation takes 56 days, and the male stops incubating the eggs shortly before they hatch.[13] Newly hatched chicks are active and can leave the nest within a few days. They stand about 25 centimetres tall and have distinctive brown and cream stripes for camouflage, which fade after three months or so. The male stays with the growing chicks for up to 18 months, defending them and teaching them how to find food.[18] Chicks grow very quickly and are full-grown in 12–14 months; they may remain with their family group for another six months or so before they split up to breed in their second season. In the wild, Emus live between 10 to 20 years;[21] captive birds can live longer than those in the wild.

[edit] Relationship with humans

[edit] Conservation status

Emus were used as a source of food by indigenous Australians and early European settlers. Aborigines used a variety of techniques to catch the bird, including spearing them while they drank at waterholes, poisoning waterholes, catching Emus in nets, and attracting Emus by imitating their calls or with a ball of feathers and rags dangled from a tree.[18] Europeans killed Emus to provide food and to remove them if they interfered with farming or invaded settlements in search of water during drought. An extreme example of this was the Emu War in Western Australia in 1932, when Emus that flocked to Campion during a hot summer scared the town’s inhabitants and an unsuccessful attempt to drive them off was mounted. In John Gould's Handbook to the Birds of Australia, first published in 1865, he laments the loss of the Emu from Tasmania, where it had become rare and has since become extinct; he notes that Emus were no longer common in the vicinity of Sydney and proposes that the species be given protected status.[4] Wild Emus are formally protected in Australia under the Environment Protection and Biodiversity Conservation Act 1999.

Although the population of Emus on mainland Australia is thought to be higher now than before European settlement,[5] some wild populations are at risk of local extinction due to small population size. Threats to small populations include the clearance and fragmentation of areas of habitat; deliberate slaughter; collisions with vehicles; and predation of the young and eggs by foxes, feral and domestic dogs, and feral pigs. The isolated Emu population of the New South Wales North Coast Bioregion and Port Stephens is listed as endangered by the New South Wales Government.[22]

[edit] Economic value

The Emu was an important source of meat to the Aborigines in the areas to which it was endemic. Emu fat was used as bush medicine, and was rubbed on the skin. It also served as a valuable lubricant. It was mixed with ochre to make the traditional paint for ceremonial body adornment, as well as to oil wooden tools and utensils such as the coolamon.[23]

An example of how the Emu was cooked comes from the Arrernte of Central Australia who call it Kere ankerre:

Emus are around all the time, in green times and dry times. You pluck the feathers out first, then pull out the crop from the stomach, and put in the feathers you've pulled out, and then singe it on the fire. You wrap the milk guts that you've pulled out into something [such as] gum leaves and cook them. When you've got the fat off, you cut the meat up and cook it on fire made from river red gum wood.[24]

Farmed Emu at Virginia's Emu Marketing Cooperative near Warrenton, Virginia, US.
Farmed Emu at Virginia's Emu Marketing Cooperative near Warrenton, Virginia, US.

Commercial Emu farming started in Western Australia in 1987 and the first slaughtering occurred in 1990.[25] In Australia, the commercial industry is based on stock bred in captivity and all states except Tasmania have licensing requirements to protect wild Emus. Outside Australia, Emus are farmed on a large scale in North America, with about 1 million birds in the US,[26] Peru and China, and to a lesser extent in some other countries. Emus breed well in captivity, and are kept in large open pens to avoid leg and digestive problems that arise with inactivity. They are typically fed on grain supplemented by grazing, and are slaughtered at 50–70 weeks of age. They eat two times a day and prefer 5 pounds of leaves each meal.

Emus are farmed primarily for their meat, leather and oil. Emu meat is a low-fat, low-cholesterol meat (85 mg/100 g); despite being avian, it is considered a red meat because of its red colour and pH value.[27][26] The best cuts come from the thigh and the larger muscles of the drum or lower leg. Emu fat is rendered to produce oil for cosmetics, dietary supplements and therapeutic products. There is some evidence that the oil has anti-inflammatory properties;[28] however, the US Food and Drug Administration regards pure emu oil product as an unapproved drug. Emu leather has a distinctive patterned surface, due to a raised area around the feather follicles in the skin; the leather is used in such small items as wallets and shoes, often in combination with other leathers. The feathers and eggs are used in decorative arts and crafts.

[edit] Cultural references
New South Wales 100th Anniversary stamp
New South Wales 100th Anniversary stamp

The Emu has a prominent place in Australian Aboriginal mythology, including a creation myth of the Yuwaalaraay and other groups in NSW who say that the sun was made by throwing an Emu's egg into the sky; the bird features in numerous aetiological stories told across a number of Aboriginal groups.[29] The Kurdaitcha man of Central Australia is said to wear sandals made of emu feathers to mask his footprints.

The Emu is popularly but unofficially considered as a faunal emblem—the national bird of Australia.[30] It appears as a shield bearer on the Coat of Arms of Australia with the Red Kangaroo and as a part of the Arms also appears on the Australian 50 cent coin. It has featured on numerous Australian postage stamps, including a pre-federation New South Wales 100th Anniversary issue from 1888, which featured a 2 pence blue Emu stamp, a 36 cent stamp released in 1986, and a $1.35 stamp released in 1994. The hats of the Australian Light Horse were famously decorated with an Emu feather plume.

There are around 600 gazetted places named after the Emu in Australia, including mountains, lakes, creeks and towns.[31] During the 19th and 20th centuries, many Australian companies and household products were named after the bird; for example, in Western Australia, Emu branded beer has been produced since the early 20th century. The Swan Brewery continues to produce a range of Emu branded beers. Emu - Austral Ornithology is the quarterly peer-reviewed publication of the Royal Australasian Ornithologists Union, also known as Birds Australia.

[edit] See also Ostrich

The Ostrich (Struthio camelus) is a large flightless bird native to Africa (and formerly the Middle East). It is the only living species of its family, Struthionidae, and its genus, Struthio. Ostriches share the order Struthioniformes with emus, kiwis, and other ratites. It is distinctive in its appearance, with a long neck and legs and the ability to run at speeds of about 65 km/h (40 mph), the top land speed of any bird.[2] The Ostrich is the largest living species of bird and lays the largest egg of any bird species.

The diet of the Ostrich mainly consists of seeds and other plant matter, though it eats insects. It lives in nomadic groups which contain between five and 50 birds. When threatened, the Ostrich will either hide itself by lying flat against the ground, or will run away. If cornered, it can cause injury and death with a kick from its powerful legs. Mating patterns differ by geographical region, but territorial males fight for a harem of two to seven females.

The Ostrich is farmed around the world, particularly for its feathers, which are decorative and are also used for feather dusters. Its skin is used for leather and its meat marketed commercially.
Contents
[hide]

* 1 Taxonomy
o 1.1 Subspecies
o 1.2 Evolution
* 2 Description
* 3 Distribution and habitat
* 4 Behavior
o 4.1 Reproduction
* 5 Ostriches and people
o 5.1 Hunting and farming
o 5.2 Ostrich racing
o 5.3 Cultural depictions
o 5.4 Ostrich feather dusters
o 5.5 Footnotes
* 6 References
* 7 External links

[edit] Taxonomy

The Ostrich was one of the many species originally described by Linnaeus in his 18th century work, Systema Naturae.[3] Its scientific name is derived from the Greek words for "camel sparrow" alluding to its long neck.[4]

The Ostrich belongs to the Struthioniformes order of (ratites). Other members include rheas, emus, cassowaries and the largest bird ever, the now-extinct Elephant Bird (Aepyornis). However, the classification of the ratites as a single order has always been questioned, with the alternative classification restricting the Struthioniformes to the ostrich lineage and elevating the other groups. Presently, molecular evidence is equivocal[citation needed] while paleobiogeographical and paleontological considerations are slightly in favor of the multi-order arrangement.

[edit] Subspecies

Five subspecies are recognized:

* S. c. australis in Southern Africa, called the Southern Ostrich. It is found south of the Zambezi and Cunene rivers. It was once farmed for its feathers in the Little Karoo area of Cape Province.[5]
* S. c. camelus in North Africa, sometimes called the North African Ostrich or Red-necked Ostrich. It is the most widespread subspecies, ranging from Ethiopia and Sudan in the east throughout the Sahel to Senegal and Mauritania in the west, and at least in earlier times north to Egypt and southern Morocco, respectively. It is the largest subspecies, at 2.74 m (9 ft) 154 kilograms (340 lb).[6] The neck is red, the plumage of males is black and white, and the plumage of females is grey.[7]
* S. c. massaicus in East Africa, sometimes called the Masai Ostrich. It has some small feathers on its head, and its neck and thighs are bright orange. During the mating season, the male's neck and thighs become brighter. Their range is essentially limited to most of Kenya and Tanzania and parts of Southern Somalia.[8]
* S. c. syriacus in the Middle East, sometimes called the Arabian Ostrich or Middle Eastern Ostrich, was a subspecies formerly very common in the Arabian Peninsula, Syria, and Iraq; it became extinct around 1966.
* S. c. molybdophanes in Somalia, Ethiopia, and northern Kenya, is called the Somali Ostrich. The neck and thighs are grey-blue, and during the mating season, the male's neck and thighs become bright blue. The females are more brown than those of other subspecies.[9] It generally lives in pairs or alone, rather than in flocks. Its range overlaps with S. c. massaicus in northeastern Kenya.[10]

Struthio camelus mounted skull and neck.
Struthio camelus mounted skull and neck.

Analyses indicate that the Somali Ostrich may be better considered a full species. mtDNA haplotype comparisons suggest that it diverged from the other Ostriches not quite 4 mya due to formation of the Great Rift Valley. Subsequently, hybridization with the subspecies that evolved southwestwards of its range, S. c. massaicus, has apparently been prevented from occurring on a significant scale by ecological separation, the Somali Ostrich preferring bushland where it browses middle-height vegetation for food while the Masai Ostrich is, like the other subspecies, a grazing bird of the open savanna and miombo habitat.[11]

The population from Río de Oro was once separated as Struthio camelus spatzi because its eggshell pores were shaped like a teardrop and not round, but as there is considerable variation of this character and there were no other differences between these birds and adjacent populations of S. c. camelus, it is no longer considered valid.[12] This population disappeared in the later half of the 20th century. In addition, there have been 19th century reports of the existence of small ostriches in North Africa; these have been referred to as Levaillant's Ostrich (Struthio bidactylus) but remain a hypothetical form not supported by material evidence.[13] Given the persistence of savanna wildlife in a few mountainous regions of the Sahara (such as the Tagant Plateau and the Ennedi Plateau), it is not at all unlikely that ostriches too were able to persist in some numbers until recent times after the drying-up of the Sahara.

[edit] Evolution
Farmed ostrich
Farmed ostrich
Wild ostriches at the Cape of Good Hope, South Africa
Wild ostriches at the Cape of Good Hope, South Africa

The earliest fossil of ostrich-like birds is the Central European Palaeotis from the Middle Eocene, a middle-sized flightless bird that was originally believed to be a bustard. Apart from this enigmatic bird, the fossil record of the ostriches continues with several species of the modern genus Struthio which are known from the Early Miocene onwards. While the relationship of the African species is comparatively straightforward, a large number of Asian species of ostrich have been described from very fragmentary remains, and their interrelationships and how they relate to the African ostriches is very confusing. In China, ostriches are known to have become extinct only around or even after the end of the last ice age; images of ostriches have been found there on prehistoric pottery and as petroglyphs. There are also records of ostriches being sighted out at sea in the Indian Ocean and when discovered on the island of Madagascar the sailors of the 18th century referred to them as Sea Ostriches, although this has never been confirmed.

Several of these fossil forms are ichnotaxa (that is, classified according to the organism's footprints or other trace rather than its body) and their association with those described from distinctive bones is contentious and in need of revision pending more good material.[14]

* Struthio coppensi (Early Miocene of Elizabethfeld, Namibia)
* Struthio linxiaensis (Liushu Late Miocene of Yangwapuzijifang, China)
* Struthio orlovi (Late Miocene of Moldavia)
* Struthio karingarabensis (Late Miocene - Early Pliocene of SW and CE Africa) - oospecies(?)
* Struthio kakesiensis (Laetolil Early Pliocene of Laetoli, Tanzania) - oospecies
* Struthio wimani (Early Pliocene of China and Mongolia)
* Struthio daberasensis (Early - Middle Pliocene of Namibia) - oospecies
* Struthio brachydactylus (Pliocene of Ukraine)
* Struthio chersonensis (Pliocene of SE Europe to WC Asia) - oospecies
* Asian Ostrich, Struthio asiaticus (Early Pliocene - Late Pleistocene of Central Asia to China)
* Struthio dmanisensis (Late Pliocene/Early Pleistocene of Dmanisi, Georgia)
* Struthio oldawayi (Early Pleistocene of Tanzania) - probably subspecies of S. camelus
* Struthio anderssoni - oospecies(?)

[edit] Description
Ostrich foot
Ostrich foot

Ostriches usually weigh from 93 to 130 kg (200 to 285 lb),[15] although some male ostriches have been recorded with weights of up to 155 kg (340 lb). The feathers of adult males are mostly black, with white at the ends of the wings and in the tail. Females and young males are greyish-brown and white. The head and neck of both male and female Ostriches is nearly bare, but has a thin layer of down.[16]

The strong legs of the Ostrich lack feathers. The bird has just two toes on each foot (most birds have four), with the nail of the larger, inner one resembling a hoof. The outer toe lacks a nail.[17] This is an adaptation unique to Ostriches that appears to aid in running. The wings are not used for flight, but are still large, with a wingspan of around two metres (over six feet),[18] despite the absence of long flight feathers. The wings are used in mating displays, and they can also provide shade for chicks. The feathers, which are soft and fluffy, serve as insulation, and are quite different from the flat smooth outer feathers of flying birds (the feather barbs lack the tiny hooks which lock them together in other birds). The ostrich's sternum is flat, lacking the keel to which wing muscles attach in flying birds.[19] The beak is flat and broad, with a rounded tip.[20] Like all ratites, the Ostrich has no crop,[21] and it also lacks a gallbladder.[22]

At sexual maturity (two to four years old), male Ostriches can be between 1.8 and 2.7 m (6 and 9 ft) in height, while female Ostriches range from 1.7 to 2 m (5.5 to 6.5 ft). During the first year of life, chicks grow about 25 cm (10 in) per month. At one year of age, ostriches weigh around 45 kg (100 lb). An Ostrich can live up to 75 years.

[edit] Distribution and habitat

Ostriches are native to savannas and the Sahel of Africa, both north and south of the equatorial forest zone.[23] The Arabian Ostriches in the Near and Middle East were hunted to extinction by the middle of the 20th century.

[edit] Behavior
Male and female ostriches "dancing".
Male and female ostriches "dancing".

Ostriches live in nomadic groups of 5 to 50 birds that often travel together with other grazing animals, such as zebras or antelopes.[24] They mainly feed on seeds and other plant matter; occasionally they also eat insects such as locusts. Lacking teeth, they swallow pebbles that help as gastroliths to grind the swallowed foodstuff in the gizzard. An adult ostrich typically carries about 1 kg of stones in its stomach. Ostriches can go without water for a long time, living off the moisture in the ingested plants.[25] However, they enjoy water and frequently take baths.[26]

With their acute eyesight and hearing, they can sense predators such as lions from far away. When being pursued by a predator, Ostriches have been known to reach speeds in excess of 65 km per hour (40 miles per hour), and can maintain a steady speed of 50 km/h (30 mph).

Ostriches are known to eat almost anything (dietary indiscretion), particularly in captivity where opportunity is increased.
Thermographic image of two ostriches in winter showing high heat retention in the body.
Thermographic image of two ostriches in winter showing high heat retention in the body.

Ostriches can tolerate a wide range of temperatures. In much of its habitat, temperature differences of 40°C between night- and daytime can be encountered. Their temperature control mechanism is more complex than in other birds and mammals, utilizing the naked skin of the upper legs and flanks which can be covered by the wing feathers or bared according to whether the bird wants to retain or lose body heat.

When lying down and hiding from predators, the birds lay their head and neck flat on the ground, making them appear as a mound of earth from a distance. This even works for the males, as they hold their wings and tail low so that the heat haze of the hot, dry air that often occurs in their habitat aids in making them appear as a nondescript dark lump. When threatened, Ostriches run away, but they can cause serious injury and death with kicks from their powerful legs.[27] Their legs can only kick forward.[28]

[edit] Reproduction
An ostrich's nest
An ostrich's nest

Ostriches become sexually mature when 2 to 4 years old; females mature about six months earlier than males. The species is iteroparous, with the mating season beginning in March or April and ending sometime before September. The mating process differs in different geographical regions. Territorial males will typically use hisses and other sounds to fight for a harem of two to seven females (which are called hens).[29] The winner of these fights will breed with all the females in an area, but will only form a pair bond with the dominant female. The female crouches on the ground and is mounted from behind by the male.
An ostrich egg.
An ostrich egg.

Ostriches are oviparous. The females will lay their fertilized eggs in a single communal nest, a simple pit, 30 to 60 cm (12-24 in) deep, scraped in the ground by the male. Ostrich eggs are the largest of all eggs, though they are actually the smallest eggs relative to the size of the bird[citation needed]. The nest may contain 15 to 60 eggs, which are, on average, 15 cm (6 in) long, 13 cm (5 in) wide, and weigh 1.4 kg (3 lb). They are glossy and cream in color, with thick shells marked by small pits.[30] The eggs are incubated by the females by day and by the male by night.[31] This uses the coloration of the two sexes to escape detection of the nest, as the drab female blends in with the sand, while the black male is nearly undetectable in the night.[32] The gestation period is 35 to 45 days. Typically, the male will defend the hatchlings, and teach them how and on what to feed.

The life span of an Ostrich is from 30 to 70 years, with 50 being typical.

[edit] Ostriches and people

[edit] Hunting and farming
Hat decorated with ostrich plumes.
Hat decorated with ostrich plumes.

In Roman times, there was a demand for ostriches to use in venatio games or cooking. They have been hunted and farmed for their feathers, which at various times in history have been very popular for ornamentation in fashionable clothing (such as hats during the 19th century). Their skins were also valued to make goods out of leather. In the 18th century, they were almost hunted to extinction; farming for feathers began in the 19th century. The market for feathers collapsed after World War I, but commercial farming for feathers and later for skins, became widespread during the 1970s.

Ostriches are farmed in over 50 countries, including climates as cold as that of Sweden and Finland, though the majority are in Southern Africa. They will prosper in climates between 30 and −30 °C[citation needed].

Since they also have the best feed to weight gain ratio of any land animal in the world (3.5:1 whereas that of cattle is 6:1)[citation needed], they are attractive economically to raise for meat or other uses. Although they are farmed primarily for leather and secondarily for meat, additional by-products are the eggs, offal, and feathers.
Male and female ostriches on a farm in New Zealand.
Male and female ostriches on a farm in New Zealand.

It is claimed that ostriches produce the strongest commercially available leather.[33] Ostrich meat tastes similar to lean beef and is low in fat and cholesterol, as well as high in calcium, protein and iron.[34]Uncooked, it is a dark red or cherry red color, a little darker than beef.[35]

The town of Oudtshoorn in South Africa has the world's largest population of ostriches. Farms and specialized breeding centres have been set up around the town such as the Safari Show Farm and the Highgate Ostrich Show Farm. The CP Nel Museum is a museum that specializes in the history of the ostrich.

Ostriches are classified as dangerous animals in Australia, the US and the UK.[citation needed] There are a number of incidents of people being attacked and killed. Big males can be very territorial and aggressive.

[edit] Ostrich racing
Ostrich pulling a cart for racing.
Ostrich pulling a cart for racing.

Ostriches are large enough for a small person to ride them, typically while holding on to the wings for grip, and in some areas of northern Africa and the Arabian Peninsula Ostriches are trained as racing mounts. There is little possibility of the practice becoming more widespread, due to the irascible temperament and the difficulties encountered in saddling the birds. Ostrich races in the United States have been criticized by animal rights organizations.

[edit] Cultural depictions

In popular mythology, the Ostrich is famous for hiding its head in the sand at the first sign of danger.[36] The Roman writer Pliny the Elder is noted for his descriptions of the ostrich in his Naturalis Historia, where he describes the Ostrich and the fact that it hides its head in a bush. He adds that it can eat and digest anything. This is embellished in the Physiologus which reports Ostriches can swallow iron and hot coals. The last belief persisted and evolved in heraldry, where the Ostrich is represented with a horseshoe in its mouth, symbolic of its iron-eating ability.[37] It was a positive symbol in Ancient Egypt; the deity Shu is portrayed in art as wearing an ostrich feather, while Ma'at, goddess of law and justice, bore one on her head.[38]

The Ostrich's behavior is also mentioned in the Bible in God's discourse to Job (Job 39.13-18). It is described as being joyfully proud of its small wings, but unwise and unmindful of the safety of its nest and harsh in the treatment of its offspring, even though it can put a horse to shame with its speed. Elsewhere, ostriches are mentioned as proverbial examples of poor parenting (see Arabian Ostrich for details).

In the Ethiopian Orthodox religion, it is traditional to place seven large Ostrich eggs on the roof of a church to symbolize the Heavenly and Earthly Angels. The Ostrich represents light and water for the Dogon people, its undulating movement symbolic of water movement.[39]

There have been no observations of Ostriches putting their heads in the sand. A common counterargument is that a species that displayed this behavior would not survive very long. Ostriches do deliberately swallow sand and pebbles to help grind up their food; seeing this from a distance may have caused some early observers to believe that their heads were buried in sand. Also, ostriches that are threatened but unable to run away may fall to the ground and stretch out their necks in an attempt to become less visible. The coloring of an ostrich's neck is similar to sand and could give the illusion that the neck and head have been completely buried. "Don't be an ostrich and stick your head in the sand," is an old saying that means don't hide from your problems thinking they'll go away.[40]

[edit] Ostrich feather dusters

The original South African ostrich feather dusters were invented in Johannesburg, South Africa by missionary, broom factory manager, Harry S. Beckner in 1903.
Feather duster
Feather duster

Ostrich feather dusters were wound on broom handles using a foot powered kick winder and the same wire used to attach broom straw, then sorted for quality, color and length before being wound in three layers to the handle. The first layer was wound with the feathers curving inward to hide the head of the handle. The second two layers were wound curving outward to give it a full figure and its trademark flower shape.

The first Ostrich feather duster company in the United States was formed in 1913 by Harry S. Beckner and his brother George Beckner in Athol, Massachusetts and has survived till this day as the Beckner Feather Duster Company under the care of George Beckner's great granddaughter, Margret Fish Rempher. Today the largest manufacturer of Ostrich feather dusters is Texas Feathers (TxF)which is located in Arlington Texas.

Apprentices still use the manual kick winder to learn the trade of building the hand crafted Ostrich feather duster. However, to speed up the manufacturing process, factories now allow craftsman to use electric powered winders to build the duster.

The Ostrich feather is durable, soft and flexible, which accounts for the success of the Ostrich feather duster over the last 100 years. Because the feather does not zipper together it is prone to developing a static charge which actually attracts and holds dust which can then be shaken out or washed off. Because of its similar makeup to human hair, care of the ostrich feather requires only an occasional shampoo and towel or air dry.

The farming of Ostriches for their feathers does not harm the bird. During molting season the birds are gathered in a pen, burlap sacks are placed over their heads so they will remain calm and trained pickers pluck the loose molting feathers from the birds. The birds are then released unharmed back onto the farm.

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an emu farm? you're crazy

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 Post subject: Re: They don't have EMUs in California
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windedsailor wrote:
an emu farm? you're crazy

you got somethin against emus bitch?! :x

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 Post subject: Re: They don't have EMUs in California
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:haha: :haha: :haha:


#spinoff#

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noaheb wrote:
windedsailor wrote:
an emu farm? you're crazy

you got somethin against emus bitch?! :x

Not getting a Simpsons reference results in an instant ban. Sorry.

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 Post subject: Re: They don't have EMUs in California
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bart d. wrote:
noaheb wrote:
windedsailor wrote:
an emu farm? you're crazy

you got somethin against emus bitch?! :x

Not getting a Simpsons reference results in an instant ban. Sorry.

oh no i got it...i just love emus and not even a simpsons reference can take that away!

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 Post subject: Re: They don't have EMUs in California
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 Post subject: Re: They don't have EMUs in California
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Image

:luv:

ha!
thats one fugly cunt!

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 Post subject: Re: They don't have EMUs in California
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There are a fair number of emu/ostrich farms along Interstate 5. Fact.


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 Post subject: Re: They don't have EMUs in California
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you could have just linked to the wiki page :P

i have actually seen an emu farm

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