Unmasking birds at Uganda Wild Life Education Centre (UWEC) Entebbe Zoo Ostriches: Though they cannot fly, ostriches are fleet, strong runners. They can sprint up to 43 miles (70 kilometers) an hour and run over distance at 31 miles (50 kilometers) an hour and the giant eggs are the largest of any living bird at 15cm long.

Unmasking birds at Uganda Wild Life Education Centre (UWEC) Entebbe Zoo Ostriches: Though they cannot fly, ostriches are fleet, strong runners. They can sprint up to 43 miles (70 kilometers) an hour and run over distance at 31 miles (50 kilometers) an hour and the giant eggs are the largest of any living bird at 15cm long.

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An Ostrich at the Wild Life Education Centre (Zoo).An Ostrich at the Wild Life Education Centre (Zoo).

 

An Ostrich at the Wild Life Education Centre (Zoo).
An Ostrich at the Wild Life Education Centre (Zoo).

 

Ostriches: Though they cannot fly, ostriches are fleet, strong runners. They can sprint up to 43 miles (70 kilometers) an hour and run over distance at 31 miles (50 kilometers) an hour and the giant eggs are the largest of any living bird at 15cm long.

Fast Fact

Type:

Bird

Diet:

Omnivore

Average life span in the wild:

30 to 40 years

Size:

7 to 9 ft (2.1 to 2.7 m)

Weight:

220 to 350 lbs (100 to 160 kg)

Group name:

Herd

Did you know?

The ostrich has the largest eye of any land animal. Its eye measures almost 2 in (5 cm) across.

Size relative to a 6-ft (2-m) man:

The flightless ostrich is the world’s largest bird. They roam African savanna and desert lands and get most of their water from the plants they eat.

Though they cannot fly, ostriches are fleet, strong runners. They can sprint up to 43 miles (70 kilometers) an hour and run over distance at 31 miles (50 kilometers) an hour. They may use their wings as “rudders” to help them change direction while running. An ostrich’s powerful, long legs can cover 10 to 16 feet (3 to 5 meters) in a single stride. These legs can also be formidable weapons. Ostrich kicks can kill a human or a potential predator like a lion. Each two-toed foot has a long, sharp claw.

Ostriches live in small herds that typically contain less than a dozen birds. Alpha males maintain these herds, and mate with the group’s dominant hen. The male sometimes mates with others in the group, and wandering males may also mate with lesser hens. All of the group’s hens place their eggs in the dominant hen’s nest—though her own are given the prominent center place. The dominant hen and male take turns incubating the giant eggs, each one of which weighs as much as two dozen chicken eggs.

Contrary to popular belief, ostriches do not bury their heads in the sand. The old saying probably originates with one of the bird’s defensive behaviors. At the approach of trouble, ostriches will lie low and press their long necks to the ground in an attempt to become less visible. Their plumage blends well with sandy soil and, from a distance, gives the appearance that they have buried their heads in the sand.

Ostriches typically eat plants, roots, and seeds but will also eat insects, lizards, or other creatures available in their sometimes harsh habitat.

  • The flightless ostrich is the world’s largest bird.
  • Ostriches have three stomachs.
  • Unlike all other living birds, the ostrich secretes urine separately from faeces.
  • Ostriches are the fast runners of any birds or other two-legged animal and can sprint at over 70 km/hr, covering up to 5m in a single stride.
  • Ostriches’ running is aided by having just two toes on each foot (most birds have four), with the large nail on the larger, inner toe resembling a hoof.
  • Ostriches’ wings reach a span of about 2 metres and are used in mating displays, to shade chicks, to cover the naked skin of the upper legs and flanks to conserve heat, and as “rudders” to help them change direction while running.
  • When threatened ostriches run although their powerful, long legs can be formidable weapons, capable of killing a human or a potential predator like a lion with a forward kick.
  • Ostriches normally spend the winter months in pairs or alone and  during breeding season and sometimes during extreme rainless periods they live in nomadic ‘herds’ of five to 50 birds led by a top hen, that often travel together with other grazing animals, such as zebras or antelopes.
  • Territorial fights between males for a harem of two to seven females usually last just minutes, but they can easily cause death through slamming their heads into opponents.
  • Ostriches perform a complex mating ritual consisting of the cock alternating wing beats until he attracts a mate, when they will go to the mating area and he will drive away all intruders. They graze until their behaviour is synchronized, then the feeding becomes secondary and the process takes on a ritualistic appearance. The cock will then excitedly flap alternate wings again, and start poking on the ground with his bill. He will then violently flap his wings to symbolically clear out a nest in the dirt. Then, while the hen runs circle around him with lowered wings, he will wind his head in a spiral motion. She will drop to the ground and he will mount for copulation.
  • All of the herd’s hens place their eggs in the dominant hen’s 3m-wide nest, though her own are given the prominent centre place; each female can determine her own eggs amongst others.
  • The giant eggs are the largest of any living bird at 15cm long and weighing as much as two dozen chicken eggs, though they are actually the smallest eggs relative to the size of the adult bird.
  • The eggs are incubated by the dominant female by day and by the male by night, using the colouration 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 dark.
  • When the eggs hatch after 35 to 45 days incubation, the male usually defends the hatchlings and teaches them to feed, although males and females cooperate in rearing chicks.
  • Contrary to popular belief, ostriches do not bury their heads in the sand: the myth probably originates from the bird’s defensive behaviour of lying low at the approach of trouble and pressing their long necks to the ground in an attempt to become less visible. Their plumage blends well with sandy soil and, from a distance, gives the appearance that they have buried their heads in the sand.
  • The Ostrich is farmed around the world, particularly for its decorative feathers and also for its meat which is marketed commercially and its skin is used for leather products.
  • Ostriches have inspired cultures and civilizations for 5,000 years in Mesopotamia and Egypt.
  • In some African countries, people race each other on the back of ostriches with special saddles, reins, and bits.
  • The wild ostrich population has declined drastically in the last 200 years, with most surviving birds in game parks or on farms.
  • Unlike most birds the males have a copulatory organ, which is retractable and 20 cm long.
  • Lacking teeth, ostriches swallow pebbles to grind their food and an adult ostrich carries about 1kg of stones in its stomach.
  • Ostriches can go without drinking for several days, using metabolic water and moisture in ingested roots, seeds and insects, but they enjoy liquid water and frequently take baths where it is available.
  • The ostrich has the largest eye of any land animal, measuring almost 5 cm across, allowing predators such as lions to be seen at long distances.

(Source : Internet)

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