A. Kori Bustard
B. Common Ostrich
C. King Penguin
D. Southern Cassowary
Ostrich is the largest living bird in the world. An adult ostrich weighs up to 150 kilograms and has a maximum height of 6 feet. They also held the record for the fastest speed of any bird in the land and largest egg of any living birds. With strong legs, ostriches can run up to a maximum speed of 70 kmph.The flightless ostriches are native to Africa.
Ostriches mainly feed on seeds, shrubs, fruits, flowers and small insects. They also swallowed pebbles for grilling foods in gigerium. Interestingly, ostriches can hold up to 1.3 kilograms of pebbles and sand within their gigerium. Ostriches can also live without water for several days.
The powerful long legs help ostriches for attacking the predators. Ostriches usually live in groups that contain 10 to 50 birds. A female ostrich lays up to 60 eggs in a year. On average, an ostrich egg measure 5.1 inches in diameter and up to 1.4 kg in weight.