Which is bigger a eagle or ostrich?

Ostrich. They are the largest living birds, reaching heights of up to 9 feet (2.7 m) and weights of up to 320 pounds (145 kg). Eagles, on the other hand, are much smaller, with the largest species, the Steller's sea eagle, reaching a wingspan of up to 8 feet (2.4 m) and a weight of up to 15 pounds (6.8 kg).