No, ostriches do not mate for life. While they do form pairs during the breeding season, these relationships are not permanent.
During the mating season, a male ostrich will gather a group of females, usually two to seven, and will compete for their attention. The male performs various displays to attract the females, such as showing off his feathers and making booming vocalizations. Once a female chooses a mate, they will engage in courtship behaviors and mate.
However, after the breeding season or once the nesting period is over, the pair may separate. The females often lay their eggs in a communal nest, and the male helps to defend the nest, but there is no long-term bond between the pairs. This lack of lifelong mating is typical in many bird species, allowing them the flexibility to mate with different partners each season.