Cassowary Wallpaper

Kicau Nusantara single wattled cassowary, cassowary tours, cassowary call, cassowary video, cassowary crossing, endangered cassowary, cassowary daintree, cassowary conservation, daintree cassowary, cassowary endangered, cassowary mission beach

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Cassowaries

Kicau Nusantara The Northern and Dwarf Cassowaries are not well known. All cassowaries are usually shy birds of the deep forest, adept at disappearing long before a human knows they are there. Even the more accessible Southern Cassowary of the far north Queensland rain forests is not well understood.
Females are bigger and more brightly coloured. Adult Southern Cassowaries are 1.5 to 1.8 metres (4.9–5.9 ft) tall, although some females may reach 2 metres (6.6 ft),and weigh 58.5 kilograms (129 lb).
All cassowaries have feathers that consist of a shaft and loose barbules. They do not have retrices (tail feathers) or a preen gland. Cassowaries have small wings with 5-6 large remeges. These are reduced to stiff, keratinous quills, like porcupine quills, with no barbs. A claw is on each second finger. The furcula and coracoid are degenerate, and their palatal bones and sphenoid bones touch each other. These, along with their wedge-shaped body, are thought to be adaptations to ward off vines, thorns and saw-edged leaves, allowing them to run quickly through the rainforest.
A cassowary's three-toed feet have sharp claws. The second toe, the inner one in the medial position, sports a dagger-like claw that is 125 millimetres (5 in) long. This claw is particularly fearsome since cassowaries sometimes kick humans and animals with their enormously powerful legs (see Cassowary Attacks, below). Cassowaries can run up to 50 km/h (31 mph) through the dense forest. They can jump up to 1.5 metres (4.9 ft)[citation needed]and they are good swimmers, crossing wide rivers and swimming in the sea as well.

Detail of a Southern Cassowary head.
All three species have horn-like but soft and spongy crests called casques on their heads, up to 18 cm (7 in). These consist of "a keratinous skin over a core of firm, cellular foam-like material".[10] Several purposes for the casques have been proposed. One possibility is that they are secondary sexual characteristics. Other suggestions include that they are used to batter through underbrush, as a weapon for dominance disputes, or as a tool for pushing aside leaf litter during foraging. The latter three are disputed by biologist Andrew Mack, whose personal observation suggests that the casque amplifies deep sounds. However, the earlier article by Crome and Moore says that the birds do lower their heads when they are running "full tilt through the vegetation, brushing saplings aside and occasionally careening into small trees. The casque would help protect the skull from such collisions."From an engineering perspective the wedge shaped casque is also the most efficient way to protect the head by deflecting falling fruit. As cassowaries live on fallen fruit they spend a lot of time under trees where seeds the size of golfballs or larger are dropping from heights of up to 30 metres. Mack and Jones also speculate that the casques play a role in either sound reception or acoustic communication. This is related to their discovery that at least the Dwarf Cassowary and Southern Cassowary produce very-low frequency sounds, which may aid in communication in dense rainforest. This "boom" is the lowest known bird call, and is on the edge of human hearing. The average lifespan of wild cassowaries is believed to be about 40 to 50 years. http://en.wikipedia.org
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Casswary Australia

Southern Cassowary | The Southern Cassowary is a large bird that lives in New Guinea and Australia. They are flightless, but equipped with a strong kick. Their numbers continue to decline because of disappearing tropical rainforests and hunting. The Southern Cassowary also known as Double-wattled Cassowary, Australian Cassowary or Two-wattled Cassowary.

In appearance, the Cassowary looks like a short, heavily-built, black and blue Emu, Dromaius novaehollandiae. Both species are indeed closely related, belonging to the family Casuariidae, and both are flightless. The female Southern Cassowary selects a male to breed with and then lays a clutch of large green eggs in a scrape in the ground lined with plant material. Once the eggs are laid, the male is left in charge of the incubation and chick-rearing duties, while the female moves away, and may even breed again with another male. During the breeding season, the parental males are very aggressive, and attacks on humans have been recorded at this time.


The Southern Cassowary feeds mostly on fruit that has fallen to the ground. The Southern Cassowary will also eat anything from snails to small dead mammals. Southern Cassowaries normally feed alone. If two males should meet, they have a stand off where both birds stand tall, fluff up their feathers and rumble at each other until one retreats. If a male and female meet, the male will move away, as the female is dominant.

In parts of its range the Southern Cassowary is still relatively common, but numbers are decreasing because of habitat clearance and collisions with cars. Their fruit diet means they are commonly sighted in commercial orchards and gardens with fruit bearing trees. Interestingly, citrus fruit is not usually eaten. They can also be dangerous if cornered.
http://true-wildlife.blogspot.com

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