ostrich egg hatching

Egg production usually begins when the female is sexually mature (at about two years of age) and if she is mating with a male. Eggs are generally produced about five to ten days after the first mating. During the mating season the plumage of the male gets much brighter. Also, males display more color in the legs than do the females. Part of the courtship process is a booming sound the male makes, and the thumping or drumming sound he makes by sitting down and hitting his head on alternating sides of the back. The hen sits down and flutters her wings. After mating, the male usually scratches out a crude nest in the dirt and the female will deposit the eggs in the nest. The number of eggs varies widely with 15 to 20 being considered normal; however, some producers in the U.S. have reported production of 75 to 100 eggs during one laying season. Eggs usually weigh about 2 1/2 to 3 pounds (1,135 to 1,362 grams) each.