The tallest bird is the ostrich (Struthio camelus). Ostriches are flightless birds native to Africa and are the tallest and heaviest living bird species. Adult male ostriches can reach a height of about 6.9 to 9.2 feet (2.1 to 2.8 meters). Females are slightly shorter, standing around 5.6 to 6.6 feet (1.7 to 2 meters) tall. Ostriches have long legs, powerful bodies, and distinctive feather patterns. They are known for their impressive running speed and their ability to deliver powerful kicks as a means of defense. Ostriches also lay the largest eggs of any bird species.