Today we are gonna meet beautiful bird from African which unfortunately can't fly - Common ostrich.
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addedCommon ostrichCommon ostriches usually weigh from 63 to 145 kilograms (139–320 lb), or as much as one to two adult humans. At sexual maturity (two to four years), male common ostriches can be from 2.1 to 2.8 m (6 ft 11 in to 9 ft 2 in) in height, while female common ostriches range from 1.7 to 2.0 m (5 ft 7 in to 6 ft 7 in) tall. New chicks are fawn in color, with dark brown spots. During the first year of life, chicks grow at about 25 cm (10 in) per month.[citation needed] At one year of age, common ostriches weigh approximately 45 kilograms (100 lb). Their lifespan is typically 40–45 years.
changedCommon ostrichThe feathers of adult males are mostly black, with white primaries and a white tail. However, the tail of one subspecies is buff. Females and young males are grayish-brown and white. The head and neck of both male and female ostriches is nearly bare, with a thin layer of down. The skin of the female's neck and thighs is pinkish gray, while the male's is gray or pink dependent on subspecies.
changedCommon ostrichTheir skin varies in color depending on the subspecies, with some having light or dark gray skin and others having pinkish or even reddish skin. The strong legs of the common ostrich are unfeathered and show bare skin, with the tarsus (the lowest upright part of the leg) being covered in scales: red in the male, black in the female. The tarsus of the common ostrich is the largest of any living bird, measuring 39 to 53 cm (15+1⁄2 to 21 in) in length. The bird has just two toes on each foot (most birds have four), with the nail on the larger, inner toe resembling a hoof. The outer toe has no nail. The reduced number of toes is an adaptation that appears to aid in running, useful for getting away from predators. Common ostriches can run at a speed over 70 km/h (40 mph) and can cover 3 to 5 m (10 to 15 ft) in a single stride. The wings reach a span of about two metres (6+1⁄2 ft), and the wing chord measurement of 90 cm (35 in) is around the same size as for the largest flying birds.
changedCommon ostrichThe feathers lack the tiny hooks that lock together the smooth external feathers of flying birds, and so are soft and fluffy and serve as insulation. Common ostriches can tolerate a wide range of temperatures. In much of their habitat, temperatures vary as much as 40 °C (70 °F) between night and day. Their temperature control relies in part on behavioral thermoregulation. For example, they use their wings to cover the naked skin of the upper legs and flanks to conserve heat, or leave these areas bare to release heat. The wings also function as stabilizers to give better maneuverability when running. Tests have shown that the wings are actively involved in rapid braking, turning, and zigzag
Common ostriches usually weigh63→145↑Common ostriches usually weigh increased, buffAt sexual maturity (two to four years), male common ostriches can be2.1→2.8m↑At sexual maturity (two to four years), male common ostriches can be increased, buff
Zooconomy changes
addedCommon ostriches usually weigh from 63 to 145 kilograms (139–320 lb), or as much as one to two adult humans. At sexual maturity (two to four years), male common ostriches can be from 2.1 to 2.8 m (6 ft 11 in to 9 ft 2 in) in height, while female common ostriches range from 1.7 to 2.0 m (5 ft 7 in to 6 ft 7 in) tall. New chicks are fawn in color, with dark brown spots. During the first year of life, chicks grow at about 25 cm (10 in) per month.[citation needed] At one year of age, common ostriches weigh approximately 45 kilograms (100 lb). Their lifespan is typically 40–45 years.
changedThe feathers of adult males are mostly black, with white primaries and a white tail. However, the tail of one subspecies is buff. Females and young males are grayish-brown and white. The head and neck of both male and female ostriches is nearly bare, with a thin layer of down. The skin of the female's neck and thighs is pinkish gray, while the male's is gray or pink dependent on subspecies.
changedTheir skin varies in color depending on the subspecies, with some having light or dark gray skin and others having pinkish or even reddish skin. The strong legs of the common ostrich are unfeathered and show bare skin, with the tarsus (the lowest upright part of the leg) being covered in scales: red in the male, black in the female. The tarsus of the common ostrich is the largest of any living bird, measuring 39 to 53 cm (15+1⁄2 to 21 in) in length. The bird has just two toes on each foot (most birds have four), with the nail on the larger, inner toe resembling a hoof. The outer toe has no nail. The reduced number of toes is an adaptation that appears to aid in running, useful for getting away from predators. Common ostriches can run at a speed over 70 km/h (40 mph) and can cover 3 to 5 m (10 to 15 ft) in a single stride. The wings reach a span of about two metres (6+1⁄2 ft), and the wing chord measurement of 90 cm (35 in) is around the same size as for the largest flying birds.
changedThe feathers lack the tiny hooks that lock together the smooth external feathers of flying birds, and so are soft and fluffy and serve as insulation. Common ostriches can tolerate a wide range of temperatures. In much of their habitat, temperatures vary as much as 40 °C (70 °F) between night and day. Their temperature control relies in part on behavioral thermoregulation. For example, they use their wings to cover the naked skin of the upper legs and flanks to conserve heat, or leave these areas bare to release heat. The wings also function as stabilizers to give better maneuverability when running. Tests have shown that the wings are actively involved in rapid braking, turning, and zigzag
Today we are gonna meet beautiful bird from African which unfortunately can't fly - Common ostrich.
Common ostrich
Common ostriches usually weigh from 63 to 145 kilograms (139–320 lb), or as much as one to two adult humans. At sexual maturity (two to four years), male common ostriches can be from 2.1 to 2.8 m (6 ft 11 in to 9 ft 2 in) in height, while female common ostriches range from 1.7 to 2.0 m (5 ft 7 in to 6 ft 7 in) tall. New chicks are fawn in color, with dark brown spots. During the first year of life, chicks grow at about 25 cm (10 in) per month.[citation needed] At one year of age, common ostriches weigh approximately 45 kilograms (100 lb). Their lifespan is typically 40–45 years.
The feathers of adult males are mostly black, with white primaries and a white tail. However, the tail of one subspecies is buff. Females and young males are grayish-brown and white. The head and neck of both male and female ostriches is nearly bare, with a thin layer of down. The skin of the female's neck and thighs is pinkish gray, while the male's is gray or pink dependent on subspecies.
The long neck and legs keep their head up to 2.8 m (9 ft 2 in) above the ground, and their eyes are said to be the largest of any land vertebrate – 50 mm (2 in) in diameter – helping them to see predators at a great distance. The eyes are shaded from sunlight from above. However, the head and bill are relatively small for the birds' huge size, with the bill measuring 12 to 14.3 cm (4+3⁄4 to 5+3⁄4 in).
Their skin varies in color depending on the subspecies, with some having light or dark gray skin and others having pinkish or even reddish skin. The strong legs of the common ostrich are unfeathered and show bare skin, with the tarsus (the lowest upright part of the leg) being covered in scales: red in the male, black in the female. The tarsus of the common ostrich is the largest of any living bird, measuring 39 to 53 cm (15+1⁄2 to 21 in) in length. The bird has just two toes on each foot (most birds have four), with the nail on the larger, inner toe resembling a hoof. The outer toe has no nail. The reduced number of toes is an adaptation that appears to aid in running, useful for getting away from predators. Common ostriches can run at a speed over 70 km/h (40 mph) and can cover 3 to 5 m (10 to 15 ft) in a single stride. The wings reach a span of about two metres (6+1⁄2 ft), and the wing chord measurement of 90 cm (35 in) is around the same size as for the largest flying birds.
The feathers lack the tiny hooks that lock together the smooth external feathers of flying birds, and so are soft and fluffy and serve as insulation. Common ostriches can tolerate a wide range of temperatures. In much of their habitat, temperatures vary as much as 40 °C (70 °F) between night and day. Their temperature control relies in part on behavioral thermoregulation. For example, they use their wings to cover the naked skin of the upper legs and flanks to conserve heat, or leave these areas bare to release heat. The wings also function as stabilizers to give better maneuverability when running. Tests have shown that the wings are actively involved in rapid braking, turning, and zigzag
