10 Flightless Birds in the World | Amazing Creature

Those birds which can’t fly are categorized in flightless birds. But they can run or swim fast instead of flying. There are about 40 species in this category. They have smaller wing bones as flying ones. The best known flightless birds are kiwi, ostrich and penguins. But we are going to fill you with more information, scroll down to read more on Top 10 Flightless Birds in the World.

10. Falkland Steamer Duck

Falkland Steamer Duck Photo credit: Wikimedia commons

Kingdom : Animalia
Class : Aves
Family : Anatidae
Genus : Tachyeres

The Falkland Steamer Duck  is a steamer duck found in the Falkland Islands in Atlantic Ocean. It is one of the two bird species found in Falkland. Their wings are very short and that’s why they can’t fly. They are mostly dark gray in color with a white stripe behind the eye.

9. Rheas

RheasPhoto credit: Wikimedia commons

Kingdom : Animalia
Class : Aves
Family : Rheidae
Genus : Rhea

Rheas generally found in the South American region and is locally known as Guarani. They look similar to an ostrich with gray brown plumage, long legs and long necks. They grow up to 170 cm tall at the head and 100 cm at the back and can weigh up to 40 kg. Rheas are vegetarian but also eat insects infrequently such as grasshoppers and small reptiles.

8. Kiwis

KiwisPhoto credit: Wikimedia commons

Kingdom : Animalia
Class : Aves
Family : Apterygidae
Genus : Apteryx

Kiwis are around the size of a normal chicken, found in New Zealand. They lay the largest egg, according to their body size of any species of bird in the world. The Kiwi is a national symbol of the New Zealand. They grow up to  45 cm in height  and weigh about 3.3 kg.

7. Elephant Birds

Elephant Birds Photo credit: Wikimedia commons

Kingdom : Animalia
Class : Aves
Family : Aepyornithidae
Genus : Aepyomis

The Elephant Birds are flightless that once lived on the island of Madagascar. They extinct in the 18th century and the reason is still unclear. The researcher believes that they were more than 3m tall and closer to 400 kg, was the world’s largest bird at that time. Their eggs are 1 m in circumference.

6. Moa

MoaPhoto credit: Wikimedia commons

Kingdom : Animalia
Class : Aves
Family : Dinornithidae
Genus : Dinornis

The Moa were nine species of flightless birds endemic to New Zealand. Now they are extinct but the largest species reached about 3.6 m in height and weighted around 230 kg. All species of moa were wingless even lacking of vestial wings which all other ratites have.

5. Cassowaries

Top 10 Flightless Birds - CassowariesPhoto credit: Wikimedia commons

Kingdom : Animalia
Class : Aves
Family : Casuariidae
Genus : Casuarius

The Cassowaries are found in the tropical forests of New Guinea and northeastern Australia. Their diet includes mainly fruits as well as some small insects. They are 1.8 m tall and weigh up to 55 kg. They can jump up to 1.5 m and are good swimmers.

4. Inaccessible Island Rail

Inaccessible Island RailPhoto credit: Wikimedia commons

Kingdom : Animalia
Class : Aves
Family : Rallidae
Genus : Atlantisia

The Inaccessible Island Rail is the smallest flightless bird. The rail has an average weight of 30 GM and length of 17 cm. Rail is half dark brown and half dark gray in color with a short black bill and a red eye. They generally eat earthworms, moths and seeds.

3. Emu

Emu Photo credit: Wikimedia commons

Kingdom : Animalia
Class : Aves
Family : Dromaiidae
Genus : Dromaius

The Emu is the largest bird native to Australia. There are three subspecies of emus in Australia. They are soft feathered and brown flightless birds, can reach up to 2 m in height. They have long thin legs and can sprint at 50 km/h. Emu are good swimmers and can ingest stones and metals to grind food in the digestive foods.

2. Ostrich

OstrichPhoto credit: Wikimedia commons

Kingdom : Animalia
Class : Aves
Family : Struthionidae
Genus : Struthio

The Ostrich is the largest living bird on the earth. They are about 2.7 m in height and weigh around 157 kg. They have long legs and can run up to 70 km/h. The Ostrich’s diet consists mainly of plants but sometimes they also eat some insects. They farmed around the world for its feathers.

1. Penguin

Penguin Photo credit: Wikimedia commons

Kingdom : Animalia
Class : Aves
Family : Spheniscidae
Genus : Aptenodytes

The Penguin is the most popular and famous flightless bird. They are not found only in cold climate such as Antarctica, but also a species of penguin lives near the equator. The average adults are about 1.1 m tall and weigh 35 kg or more. Most penguin eats fish, squid etc. They spend half of their life on land and the remaining half in the ocean.

Written by
Varun Kumar

Varun Kumar is a professional science and technology journalist and a big fan of AI, machines, and space exploration. He received a Master's degree in computer science from Indraprastha University. To find out about his latest projects, feel free to directly email him at [email protected] 

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