The ostrich is the fastest animal on two legs.
The ostrich has wings, but it cannot fly.
This is the most beautiful ostrich I've ever seen.
Even though the ostrich is a bird, its meat looks and tastes a lot like beef.
A ostrich has got a long neck.
An ostrich does not fly through the air.
Her father has an ostrich farm.
The pigeon and the ostrich are both birds; one can fly and the other cannot.
That's why ostrich meat costs more than twice as much as beef and pork.