When ostriches are attacked they run away. When they are escaping, they can run at around fifty kilometres per hour over long distances. In a short sprint they can even reach seventy km/h. If this escape plan isn't successful, they defend themselves using their strong legs. On the largest of their two toes, there is a big nail, with which they could really wound an attacker.
Ostriches live in groups of varying compositions. Sometimes they form couples, but groups of tens of birds are also seen. Usually a cock lives with a dominant hen and two to four other hens. The hens lay their eggs in a communal nest. There can be up to forty eggs in one nest. The eggs on the outside edge therefore aren't incubated. In the daytime, the brown female has the best camouflage for sitting on the eggs. At night, the black male ostrich will sit on them.