Ostrich: The ostrich is the largest bird in the world. It can weigh up to 320 pounds (145 kilograms) and stand up to 9 feet (2.7 meters) tall. Ostriches are native to Africa and are known for their long necks and powerful legs.
Emu: The emu is the second-largest bird in the world, native to Australia. It can weigh up to 130 pounds (59 kilograms) and stand up to 6.2 feet (1.9 meters) tall. Emus are flightless birds with long legs and a distinctive running gait.
Southern Cassowary: Found in the rainforests of New Guinea and northern Australia, the southern cassowary is one of the largest and heaviest birds in the world. It can weigh up to 170 pounds (77 kilograms)
Andean Condor: The Andean condor is one of the largest flying birds in the world, native to the Andes mountains in South America. It has a wingspan of up to 10.5 feet (3.2 meters) and can weigh up to 33 pounds (15 kilograms).
Dalmatian Pelican: The Dalmatian pelican is one of the largest pelican species and one of the heaviest flying birds in the world. It has a wingspan of up to 11.5 feet (3.5 meters) and can weigh up to 33 pounds (15 kilograms).
Kori Bustard: Native to Africa, the kori bustard is one of the largest flying birds in the world by weight. It can weigh up to 40 pounds (18 kilograms) and stand up to 4.2 feet (1.3 meters) tall.
Wandering Albatross: The wandering albatross has the largest wingspan of any living bird, reaching up to 11 feet (3.4 meters) across.