10 Biggest Birds In The World

1: Ostrich

Average Total Length:  210 cm / 6.9 ft

Average Mass:              104 kg / 230lb

Maximum Mass:          156 kg / 346 lb


Flightless ostrich is the largest bird in the world. It can run at the speed of 70 km / h (43mph), making it the fastest land runner amoung any bird. Ostriches live in small herds that typically contain less than a dozen birds. Ostriches usually eat plants, roots and seeds, but also eat insects, lizards, or other creatures available in their envoirnment sometimes harsh habits.

2: Southern Cassowary

Average Total Length:  176 cm / 5.8ft

Average Mass:             45 kg / 99lb

Maximum Mass:         85 kg / 190 lb


Southern Cassowary is also called as double braided Cassowary, Two-wattled Cassowary or Australia. This flightless bird is associated with EMU, Ostrich and Rhea. It is located in the tropical forests of Indonesia, New Guinea and North Eastern Australia. Southern Cassowaries are endangered due to loss of rainforest habitat and hunting.

3: EMU

Average Total Length:  164 cm / 5.4 ft

Average Mass:              33 kg / 73lb

Maximum Mass:          70 kg / 150 lb


EMU is the largest bird in Australia. EMU have long, thin neck down. Emus can travel great distances at a fast, economical trot and, if necessary, can sprint at 50 km / h 31 mph. They eat large quantities of caterpillars, grasshoppers and burrs tangled masses of sheep wool, which makes them useful for farmers.

4: Dalmatian Pelican

Average Total Length:  152 cm / 5ft

Average Mass:             11.5 kg / 25lb

Maximum Mass:         15kg / 33lb


Dalmatian Pelican is arguably one of the most beautiful and charismatic nesting birds in Europe. Nevertheless, it is extremely vulnerable to its full geographical distribution. This major five-year project to actively preserve the main breeding population of Dalmatian pelicans in the Romanian Danube Delta, as well as increases the overall protection of species, aiming to improve their condition when breeding, staging and wintering.

5: Greater Rhea

Average Total Length:  134 cm / 4.4 ft

Average Mass:              23 kg / 51lb

Maximum Mass:          40 kg / 88 lb


Greater Rhea is also known as the Grey with such names Rhea, Rhea Common, American Rhea, This flightless bird is in the eastern South American country in the country such as Argentina, Bolivia, Brazil, Paraguay and Uruguay. It has powerful legs, each of which ends in three fingers. Rhea can not fly and rely on their legs to outrun predators.

6: Emperor Penguin

Average Total Length:  114 cm / 3.7 ft

Average Mass:              31.5 kg / 69lb

Maximum Mass:          46 kg / 100 lb


Emperor Penguin is the tallest and heaviest of all living penguin species and is native to Antarctica. It kept in captivity in only two places in the world. Penguins use of physiological adaptations and cooperative behavior in order to cope with the incredibly harsh conditions, where wind chills can reach -76 ° (-60 ° C) F.

7: Dwarf Cassowary

Average Total Length:  105 cm / 3.4ft

Average Mass:             19.7 kg / 43lb

Maximum Mass:         43 kg / 75lb


Dwarf Cassowary also known names such as Bennett's Cassowary (after Australia naturalist George Bennett, who first studied them), Little Cassowary, Mountain Cassowary or Mooruk, is the smallest of the three known species of cassowary, but still a large bird. It is located in the forests of New Guinea, New Britain and Yapen Island.

8: Lesser Rhea

Average Total Length:  96 cm / 3.2ft

Average Mass:             19.6 kg / 43lb

Maximum Mass:         28.6kg / 3lb


Lesser Rrhea is the smaller rhea, belonging to the group of flightless birds known as ratites, which lack the keel of the sternum in which flight muscles attach in flying birds. Nevertheless, rheas not believed to be closely related to other members of the group, an ostrich, emu, cassowary and kiwi.

9: King Penguin

Average Total Length:  92 cm / 3ft

Average Mass:             13.6kg / 44lb

Maximum Mass:         20kg / 44lb


King penguins are one of the "classical" types that people think about when they think about penguins. Along with Adélie and emperor penguins, they have come to represent the whole group. They are very honest, decent and beautiful birds and when they come out of the sea and the ancient brilliant there may not be clean or more elegant creature around.

10: Golden Eagle

Body Length:  30-40 inches (76-101 cm)

Wingspan:       6-1/2 to 7-1/2 feet (1.9-2.2 m)

Weight:            7-13 pounds (3-6 kg)


This powerful eagle is the largest bird of prey in North America and it is also the Mexico's national bird. These birds are dark brown, with lighter golden-brown plumage on their heads and necks. They are extremely fast and can be immersed in their careers at a speed of more than 150 miles (241 kilometers) per hour.