Top 10 Largest Birds in the World
The largest birds living bird, a member of the Struthioniformes, is the ostrich (Struthio camelus) reaching a height of over 2.7 m (9 ft) and weighing over 156 kg (345 lb). The largest bird in the fossil record may be the extinct elephant birds of Madagascar, which were related to the ostrich. Below is the list of top 10 largest birds in the world.
10. Mousebirds (Coliiformes)
The mousebirds are remarkably uniform, but the largest birds is seemingly the Speckled Mousebird (Colius striatus), at 2 oz (60 g) and over 14 in (35 cm).
9. Swifts & allies (Apodiformes)
The White-naped Swift (Streptoprocne semicollaris) and the Purple Needletail (Hirundapus celebensis) reach similar large sizes, at up to 225 g (8 oz) and 25 cm (10 in). The hummingbirds are also traditionally included in this order, the largest birds of which is easily the Giant Hummingbird (Patagona gigas).
8. Cuckoos & allies (Cuculiformes)
The largest species of this order is the Great Blue Turaco (Corythaeola cristata), a cousin of the cuckoos. This largest birds, which can weigh over 1.2 kg and measure over 74 cm in length, is much larger than other turacos. The largest North American cuckoo is Greater Roadrunner (Geococcyx californius) about 56 centimetres (22 in) long and weighs about 300 grams (10.5 oz).
7. Nightjars & allies (Caprimulgiformes)
This largest birds is the Great Potoo (Nycitbius grandis), the maximum size of which is about 680 g (1.5 lb) and 60 cm (2 ft).
6. Shorebirds (Charadriiformes)
The largest birds in this diverse order is the Great Black-backed Gull (Larus marinus), attaining a size of as much as 85 cm (34 in) and 2.5 kg (5½ lb). The extinct Great Auk (Pinguinus impennis), at 5 kg (11 lb) was the record holder, however.
5. Kingfishers & allies (Coraciiformes)
The largest species is the Southern Ground Hornbill (Bucorvus leadbeateri), reaching sizes of as much as 6 kg (13.5 lb) and nearly 1.2 m (4 ft) in length. The Largest kingfisher Giant Kingfisher (Megaceryle maxima) is 42–48 cm long, with a large crest and finely spotted white on black upperparts. The male of this largest birds has a chestnut breast band and otherwise white underparts wit.
4. Birds of prey (Falconiformes)
The largest birds is the Eurasian Black Vulture (Aegypius monachus), attaining a maximum size of 14 kg (31 lb), 119 cm (47 in) long and 3 m (10 ft) across the wings. Slightly larger, at up to 1.4 m (4.7 ft) long, wingspan 3 m (10 ft) and weighing at least 15 kg (33 lb), was the now extinct Haast’s Eagle (Harpagornis moorei), the largest eagle known.
3. Herons & allies (Ciconiiformes)
This largest birds is the Andean Condor (Vultur gryphus), reaching a wingspan of 3.2 m (10.7 ft) and a weight of 15 kg (33 lb). The longest-bodied species is probably the Saddle-billed Stork (Ephippiorhynchus senegalensis), which often exceeds 1.5 m (5 ft) tall. Most of the largest flying birds in the fossil record, including the largest, Argentavis magnificens, were members of the Ciconiiformes.
2. Pigeons (Columbiformes)
This largest birds of the pigeon/dove complex is the Victoria Crowned Pigeon (Goura victoria). Some exceptionally large ones have reached 3.7 kg (8.2 lb) and 85 cm (34 in). The extinct flightless Dodo (Raphus cucullatus) was the largest bird of this order of all time, weighing about 23 kg (50 lb).
1. Waterfowl (Anseriformes)
The largest species in general is the Trumpeter Swan (Cygnus buccinator), which can reach an overall length of 1.82 m (6 ft), a wingspan of 3 m (10 ft) and a weight of 17.3 kg (38 lb). However, the heaviest waterfowl ever recorded was an overweight Mute Swan (Cygnus olor) from Poland, who weighed nearly 23 kg (50 lb). The members of the previously mentioned Dromornithidae are now classified as members of this order, making them the largest birds that ever lived.