by its feather colors.......
the male or female
The difference between a male and female ostrich is that males have black feathers/fur and females have brownish white. The male has a white tip at the end of his tail.
a female ostrich is called a hen.
The Differences Between Male and Female Intimacy
Balancing Male and Female Traits in the Workplace
The Male and Female Approaches to Sex
The Female Reaction to the Affairs of Men