The largest living bird is the ostrich. Native to Africa, ostriches are flightless birds known for their impressive size, reaching heights of up to 9 feet and weighing between 220 to 350 pounds. They are characterized by long legs, large eyes, and a distinctive, fluffy plumage. Despite their inability to fly, ostriches are remarkable runners, capable of sprinting at speeds of up to 45 miles per hour. They primarily inhabit savannahs and open grasslands, and their diet consists mainly of plant matter, seeds, and occasional insects.