One of the largest and most powerful raptors, the harpy eagle has a wingspan of up to 2.2 meters (7.4 feet) and weighs up to 9 kilograms (20 pounds).
The heaviest flying bird native to Africa, with males weighing up to 19 kilograms (42 pounds) and occasionally more.
The heaviest living flying bird native to North America, with a weight of up to 17.3 kilograms (38 pounds) and a wingspan of up to 3 meters (10 feet).
This bird competes with the great white pelican for the title of the heaviest flying bird, with a wingspan of up to 3 meters (9.8 feet).
Known for the longest wingspan of any bird, it can reach up to 3.5 meters (11.5 feet). It primarily lives in the Southern Ocean.
This bird has the largest wingspan of any land bird, reaching up to 3.3 meters (10.8 feet), and can weigh up to 15 kilograms (33 pounds).
The greater rhea can reach a height of up to 1.83 meters (6 feet) and weigh up to 40 kilograms (88 pounds).
The emu is the second tallest bird, reaching up to 1.9 meters (6.2 feet) in height, and can weigh up to 60 kilograms (132 pounds).
Second only to the ostrich in height, the southern cassowary can stand up to 2 meters (6.6 feet) tall and weigh up to 85 kilograms (187 pounds).
The ostrich is the world's tallest and heaviest bird. It can reach up to 2.8 meters (9 feet) in height and weigh up to 156 kilograms (344 pounds).