There are over 9,000 species of birds on our planet, most of which are flying. The bones of birds that fly are hollow and thin, significantly reducing skeletal mass. Light feathers create a broad, durable surface that generates essential lift during flight. Some feathers act as rudders, while others protect the body from hypothermia and injury.
Eat the birds are small, smart and large predators with the dark side and more friendly breeds. Wondering what the largest bird on Earth is? We offer a top 10 list of the largest birds in the world.
10. Steller's sea eagle

The largest bird of prey, belonging to the accipitridae family, is native to northeast Asia. The eagle is the largest eagle, weighing up to 9 kg. It feeds on fish and carrion. It is currently listed as endangered, but can be found in the wild on the Amur River, Kamchatka, China, Japan, and the Americas.
9. Golden Eagle

A large raptor of the accipitridae family. It inhabits primarily mountainous areas, feeding on hares and birds and avoiding humans. It can also prey on fawns and sheep. The golden eagle weighs 7 kg and is currently listed as endangered. Its distinctive feature is its excellent night vision. Its wingspan allows it to fly at speeds of up to 320 km/h, so its prey is practically doomed.
8. Albatross

The largest flying bird, growing to 11-11 kg. It can be classified as either a wandering or a royal. Its wingspan is almost 4 m, and it chooses cliffs as nesting sites, where entire colonies flock to for the start of the active breeding season. Albatrosses are monogamous; only very young individuals engage in mating displays.
7. Black vulture

A large raptor of the accipitridae family. It inhabits the mountains, feeding on carrion and the meat of dead animals. Adults grow to 10-12 kg and usually live in colonies or pairs. They build enormous nests—approximately 2 meters in diameter. The nesting period lasts 3.5 months, with a maximum of a couple of eggs laid at a time. The offspring survive poorly, but robust adults can live up to 50 years.
6. Cassowary

An unusual bird with a beautiful name. It has a distinctive bony protrusion on its head, which is larger in males than in females. Adult cassowaries can weigh up to 80 kg, but are half the size of ostriches. This species cannot fly, but it is a fast runner. When defending themselves, cassowaries kick and strike with their claws.
5. Crowned Eagle

The eagle inhabits forested areas of Africa and is a powerful predator. Its primary prey is antelopes and monkeys. They usually hunt larger prey in pairs: one eagle scares the hapless animal, while the other catches it. The eagle's reaction is lightning fast. It is most commonly found in Zaire and Kenya.
4. Swan

It turns out that this is not only a very beautiful bird, but also a large one. An adult can weigh up to 15 kg, with a wingspan of approximately 2 meters. Swans fly at speeds of 50-80 km/h, covering several thousand kilometers per day. Swans are monogamous creatures, and they also protect their young until they are two years old.
3. Crane

A graceful and truly enormous bird. It stands up to 190 cm tall, with a wingspan of 2 m. Impressive, isn't it?
2. Emperor penguins

They look more like animals, but are actually birds. They reach 120 cm in height and weigh around 50 kg. These giants live primarily in the ice caps of Antarctica, but can also reach the mainland.
1. African ostrich

The African ostrich weighs approximately 150-170 kg and stands 2.7 m tall. It cannot fly, but it can run very, very fast, reaching speeds of 70 km/h. The size of this bird's eyes is also identical to the size of its brain.

