Ostrich is a bird of large size ostriches that can not fly native ostriches is Africa and the Middle East. During the ages, ostriches were exposed to a number of illegal fishing operations that took place in the places that existed in these places, including the deserts of the Middle East. The size of ostriches is about 100-150 kg, and its height is about 2.4 meters. The ostrich has two legs that are strong and startling, and can travel more than 50 km / h and maintain its speed for half an hour. Ostrich is the only one that has two fingers in each foot. The ostrich is bleached every two days, laying from 12 to 15 eggs, until they are collected from 40 to 60 eggs per year, and the movement lasts for 42 days. The weight of an ostrich egg is about one and a half kilograms, and its crust is thick and strong and weighs the weight of the ostrich when it lies above it. The mating period begins in the ostriches from the beginning of March to October, and then the male and female are separated. They are separated by the color of the feathers. When the male reaches the age of one and a half years, the color of the feather becomes black and the female becomes The color of her feathers is gray. The ostrich is characterized by its high and strange voice, and it produces a roar-like sound that comes from the lion, and has a quirky rhythm. Owls can not fly, but they are famous for their high velocity in the flow; because of the long legs that help them to run large and wide steps, and may reach a step to four and a half meters. Each finger of the ostrich's toes reaches 18 cm long and has thick nails that quickly become lethal if exposed to a danger. The ostrich generally feeds on plants, in addition to eating reptiles and lizards, and eating too much of gravel and sand; because it helps to grind food, and facilitates digestion