Know The Heaviest and Largest Birds In The World

According to scientists, there are almost 9,000 to 10,000 species of birds that exist on this earth. These species are distinguished by appearance, shape, color, behavior, and size.

Bird sizes vary by species and the smallest bird in the world is the bee hummingbird with a maximum size of 6 centimeters. But there are many birds with size and weight that can match the weight of an adult human.

1. Common ostrich

Common ostrich

Average weight: 104kg

Maximum weight: 156.8kg

As expected, the heaviest bird in the world is the common ostrich. It is usually found in Africa and is the only animal from the Struthio genus group that is still alive. The maximum weight of this bird can reach 156.8 kilograms which is equivalent to the average weight of 2 adult humans. In addition to being the heaviest bird in the world, the egg produced by this animal is the heaviest egg in the world at 2,589 kilograms.

2. Somali ostrich

Somali ostrich

Average weight: 90kg

Maximum weight: 130kg

The Somali ostrich is a subspecies of the common ostrich that can be found in Africa, and Somalia. It was classified as a different species from the common ostrich in 2014. There is a slight difference in the body of this ostrich from the common ostrich, which is its neck which is a mixture of blue and gray. As the 2nd heaviest bird in the world, the weight of the Somali ostrich can reach 130 kilograms.

3. Southern cassowary bird

Southern cassowary bird

Average weight: 45kg

Maximum weight: 85kg

The southern cassowary or another name Australian cassowary is the 3rd heaviest bird in the world. This animal is also an endangered species that is now said to have only 2,500 left in the world. It can be found in Indonesia, New Guinea and northeastern Australia. A significant difference between both the northern and southern cassowary is that the neck of the Southern cassowary is blue while the Northern cassowary has a red neck. Southern cassowary can reach a maximum weight of 85 kilograms.

4. Northern cassowary bird


Average weight: 44kg

Maximum weight: 75kg

The cassowary bird is one of the largest and heaviest bird species in the world. This Northern cassowary bird is the 4th heaviest bird in the world that can reach a maximum weight of 75 kilograms. It is usually found in lowland rainforests throughout the islands of Batanta, Slalawati, Yapen and Northern New Guinea.

5. Emu Bird

Emu Bird Emu Bird

Average weight: 33kg

Maximum weight: 70kg

Commonly found in all parts of Australia, the Emu is an animal in the ostrich category that eats plants and insects. Emu is the tallest bird in the world with a height of 190 centimeters that can run at a speed of 50 kilometers per hour. This animal can grow up to a weight of 70 kilograms, and its population is close to 700,000 in the world.

6. Penguin emperor

Penguin emperor

Average weight: 31.5kg

Maximum weight: 46kg

This cute animal also belongs to the category of birds. Among the many species of penguins, the Emperor Penguin is the tallest and heaviest species in the world. Living in Antarctica, both sexes have the same fur and size. The only species of penguin that breeds during the winter in Antarctica can reach a height of 122 centimeters while the weight of an adult female can reach 45 kilograms. The lifespan of an Emperor Penguin is 50 years.

7. Greater rhea

American rhea

Average weight: 23kg

Maximum weight: 40kg

Usually found in eastern South America, the greater rhea or American rhea is a species of ostrich. It lives in open areas such as grasslands. Categorized as the largest bird in South America, this bird with a lifespan of 10.5 years can reach a maximum weight of 40 kilograms with a height of 1.32 meters.

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