By bodyweight, there are large bird species found across the globe. According to the fossil records, birds are considered to be the last surviving species in the dinosaur category. They are referred to as avian dinosaurs.
List of 15 largest Birds
It is regarded to be the world’s largest living bird weighing around 63- 156 kg. It is found commonly in Africa. In height, male ostriches are around 6’11” to about 9’2” and females around 5’” to 6’7”. They can run very fast covering about 9.8 ft – 16.4 ft within a single stride and jog at about 48 km/h (30 mph).
Somali ostrich (Struthio molybdophanes)
It weighs about 130 kg (287 lb) and is the 2nd largest flightless bird. This large flightless bird can be seen in the ‘Horn of Africa’, across Somalia and north-eastern Ethiopia. In 2014, it was identified as a unique species.
It weighs about 83 kg (183 lb) and the scientific term is Casuarius casuarius. It is found across northeastern Australia, New Guinea and Indonesia. Its height is around 127 to 170 cm. Males weigh about 36-50 kg, while females weigh around 68 kg. It is also considered to be the largest extant Asian and Australian bird.
Northern cassowary (Casuarius unappendiculatus)
It weighs about 70 kg (154 lb). This bulky, large bird is found in New Guinea. Males are quite smaller, while females weigh around 70 kg (154 lb). Their average weight is around 58 kg (128 lb). Although having a stocky build, it can run fast at a speed of about 50 km/h (31 mph).
Emu (Dromaius novaehollandiae)
It weighs about 60 kg (99 lb). By height, it is regarded to be the 2nd largest bird living on earth. The ostrich is its close relative. It has a height of about 6.2 ft. (1.9 meters). It weighs around 40 and 132 lb (18 and 60 kg). When compared to males, females are somewhat larger. They can run at a speed of about 30 mph (48 km/h). It is commonly found in Australia.
Emperor Penguin (Aptenodytes forsteri)
It weighs about 45 kg (99 lb) and is spread across Antarctica. In height, it reaches about 51” (130 cm) and weighs around 49 – 99 lb (22-45 kg). Among all the living penguin species, it is the heaviest and the tallest.
Greater rhea (Rhea Americana)
It weighs about 40-88 lb (20-40 kg) and is the American continent’s largest bird. Its powerful, strong legs allow it to run at about 56 km/h (35mph). It is found commonly in Brazil, Bolivia, Argentina, Uruguay and Paraguay.
Domesticated Turkey (Meleagris gallopavo)
It weighs about 86lb (39kg). It has its English name as ‘turkey’ probably due to some early misidentification with some unrelated species.
Darwin’s rhea (Rhea pennata)
It weighs around 63lb (28.6kg) and is referred to as the lesser rhea. In height, it is around 35”-39” (90-100 cm), while the length is around 90-100 cm. This bird is found in South America’s Patagonia region and the Altiplano (Bolivian or Andean Plateau in West Central South America.
Dwarf cassowary (Casuarius bennetti)
It weighs about 57 lb (26 kg): In height, this bird is around 3.25 and 4.92 ft (99-150 cm). It can be found across New Guinea’s mountain forests, Yapen Island and New Britain.
King Penguin (Aptenodytes patagonicus)
It weighs over 40lb (18+ kg) and is around 28”-39” (70-100 cm) tall. When compared to females, males are somewhat larger. Among penguins, it is considered to be the 2nd largest species.
Kori bustard (Ardeotis kori) and Great bustard (Otis tarda)
It is considered to be the world’s heaviest flying animal still living on this planet. The Great bustard is present in temperate Asia and South/Central Europa. However, the majority of the population can be seen in Spain and Portugal. Males are around 2’11” to 3’5” tall (90-105 cm) with a length of about 3’9” (115 cm), while its wingspan is 6’11”-8’10” (2.1-2.7m). In weight, they measure around 13-40 lb (5.8-18 kg). Females are quite smaller, weighing around 6.8-17.6 lb (3.1-8 kg).
Male Kori bustard
The height is around 3’11” – 4’11” (120-150 cm) and weighs around 15-40 lb (7-18 kg). Females range around 6.6-15.4 lb (3- kg).
Trumpeter swan (Cygnus buccinators)
Considered as one among the world’s heaviest bird species, it is found in North America. Its wingspan exceeds 10’ (3m).
Andean condor (Vultur gryphus)
The male weighs around 11-15 kg (24-33 lb), while females about 8-11 kg (18-24 lb). Their overall length is around 100-130 cm (3’3” – 4’3”) with a large wingspan of about 10’10” (3.3m). It is found in Bolivia, Argentina, Chile, Peru, Ecuador, Venezuelan Andes states and Colombia.
Dalmatian pelican (Pelecanus crispus)
It is among the heaviest flying bird species in the world. Its length is around 160-183 cm (5’3”-6’) and weighs about 7.25-15 kg (16-33.1 lb). Its wingspan is around 290-345 cm (9’6”-11’4”). It is found in India, China and southeastern Europe.
The above is the brief details of the largest birds. Read here about the biggest birds of prey.