While most birds have three or four toes, an ostrich only has two.

Depending on the species, birds have varying feet anatomies. Despite the
variation, ostriches are unique in that they have only two toes on each
foot, whereas most birds have three or four. One of an ostriches' two
forward pointing toes is larger and has a claw like nail. They kick with
their powerful legs and feet to defend against predators.