how much does a bird weigh in kg

We recommend weighing your birds because as caged birds and clipped parrots, they get far less exercise than that of their cousins in the jungle so obesity is not uncommon in our exotic birds. Another added benefit is making sure they are healthy.

Although small birds are hard to weigh on a gram scale because they are generally kept flighted and are not hand trained it is the converse for parrots. We strongly recommend you weigh your bird routinely at the same time of the day if possible.

Exotic birds are prey and are very skilled at hiding any illness almost until it’s too late.

The ONLY way to tell if your companion bird is not well is weight loss in grams every day. Here is a guideline for adult birds so keep in mind babies still on formula can surpass these numbers but will lose 10-15% of their body weight during the weaning process but should gain it back in their first year. These are ranges, and of course, each bird can vary slightly due to frame size or how many were born in his or her clutch but if you are weighing regularly you’ll know baby’s own baseline weight.

I couldn’t possibly list all species and subspecies here but these are the most common birds we see:

Hornbills, hoopoe, and wood-hoopoes (Order Bucerotiformes) edit

  • The southern ground hornbill (Bucorvus leadbeateri), which can weigh up to six pounds, is the largest species of Coraciiformes. 2 kg (14 lb) and grow as long as 1. 3 m (4. 3 ft). [85] A number of Asian hornbills are arboreal and can grow to enormous sizes; the great hornbill (Buceros bicornis) can weigh up to 4 kg (8 8 lb), and the rhinoplax vigil, or helmeted hornbill, which can weigh up to 1 7 m (5. 6 ft) in total length. The larger hornbills can reach a maximum wingspan of one (1) 83 m (6. 0 ft). [88].
  • The Australasian channel-billed cuckoo (Scythrops novaehollandiae) is the largest of the cuckoos, with a weight range of 0 to 0. 93 kg (2. 1 lb), a 1 m (3. 3 ft) wingspan and a length of 0. 66 m (2. 2 ft). [89][90].
  • Despite having similar adaptations, many authorities now support the separation of falcons from the Accipitriformes because genetic evidence indicates that they are not closely related. [91] The gyrfalcon (Falco rusticolus) is the largest species of falcon. Large females of this species can range up to 2. 1 kg (4. 6 lb), span 1. 6 m (5. 2 ft) across the wings and measure 0. 66 m (2. 2 ft) long. [47].
  • The

  • Meleagris gallopavo, the North American wild turkey, is the heaviest member of this order. 2015 saw the shooting of the largest specimen ever seen, which weighed 17 05 kg (37. 6 lb). [92] At 37 kg (82 lb), the heaviest domesticated turkey ever recorded was made. [45].
  • From the tip of the bill to the end of the tail coverts, the male green peafowl (Pavo muticus) of Southeast Asia is the longest gamebird species, reaching a length of up to 3 m (9 8 feet), the tail coverts accounting for two thirds of the length. For a gamebird, its wingspan is comparatively broad, reaching up to 1. 6 m (5. 2 ft) across the wings. [93].
  • Tetrao urogallus, the Eurasian western capercaillie, is the largest member of the grouse family, weighing up to six 7 kg (15 lb) and 1 m in length (3 3 ft).
  • With lengths of up to one million kilometers, this ancestral family of flightless, prehistoric creatures from New Caledonia was sometimes mistakenly referred to as “giant megapodes” (Sylviornis). 7 m (5. 6 ft) weights up to approximately 40 kg (88 lb). [94].
  • The yellow-billed loon (Gavia adamsii) of the Arctic is the largest species on average, growing up to 1 m (3 3 ft) and 7 kg (15 lb). At 8 kg (18 lb), one remarkably large North American Great Northern Diver (Gavia immer) was weighed; it was heavier than any yellow-billed loon ever recorded. Wingspans of the largest loons can reach 1. 52 m (5. 0 ft). [95].
  • Alongside the

  • The heaviest birds that can fly are the males of the African kori bustard (Ardeotis kori) and Eurasian great bustard (Otis tarda), which can weigh up to 16 kg (35 lb), which is two to three times the weight of their female counterparts. Although the question of which of these species is larger is unresolved, both are capable of reaching weights of at least 21 kg (46 lb)[45] and measurements of up to 1. 53 m (5. 0 ft) long. There have been reports of kori bustards weighing anywhere from 23 kg (51 lb) to 40 kg (88 lb), however all of these are unconfirmed or questionable. [97].
  • The sarus crane (Grus antigone), found in Southern Asia and Australia, is the tallest flying bird on Earth and is also a member of the Gruiformes family. It can grow to a height of two meters (6 6 ft). There are reports of heavier cranes in other species, such as the Siberian crane (Grus japonensis) and the red-crowned crane (Grus japonensis). leucogeranus), both of which are native to Northeast Asia and can weigh up to 15 kg (33 lb) as opposed to the maximum of 12 8 kg (28 lb) in the sarus. [40][31][99] The largest bustards and cranes can have wingspanes of up to two 5–3 m (8. 2–9. 8 ft). [100][101].
  • The largest size of the most species-rich family in this order, the rails, is found in the bulky, endangered takahe (Porphyrio hochstetteri) of New Zealand. This species can weigh up to 4 2 kg (9. 3 lb) and measure 0. 65 m (2. 1 ft) long. [102] Brontornis burmeisteri, the aforementioned “terror bird,” has historically been categorized as a member of this order, however this classification may not be precise.
  • The

  • The largest tropicbirds is the red-billed tropicbird (Phaethon aethereus). With the exception of the central tail feathers, which double the length, the adult is a slender, mostly white bird with a one-meter wingspan that measures 48 cm in length.
  • The greater flamingo, or Phoenicopterus roseus, is the largest flamingo found in Africa and Eurasia. This species, which is surpassed only by the tallest cranes when standing upright, is one of the tallest flying birds known to exist. It usually weighs three 5 kg (7. 7 lb) and stands up to 1. 53 m (5. 0 ft) tall. At maximum, a male can weigh up to 4. 55 kg (10. 0 lb) and stand as high as 1. 87 m (6. 1 ft). [122] Flamingos have comparatively short wingspan, reaching up to 1 65 m (5. 4 ft). [123].
  • The

  • The toco toucan (Ramphastos toco) of the neotropic forest is the largest species of this order. Large toucan specimens have a maximum weight of 870 g (1 92 lb) and 0. 65 m (2. 1 foot), at which point the beak by itself can reach a maximum size of about 20 cm (7 9 in). [124].
  • With a length of up to 0, the imperial woodpecker (Campephilus imperialis) of Mexico was the largest woodpecker until the 20th century. 6 m (2. 0 ft). It is widely accepted that habitat destruction and hunting are to blame for the extinction of this species. [125] The Southeast United States and Cuba’s closely related ivory-billed woodpecker (Campephilus principalis) approached comparable sizes at up to 0 5 m (1. 6 ft) in length, with a wingspan of 0. 78 m (2. 6 feet) and a minimum mass of 530 grams (1 17 lb). Although there is a chance that it may still exist in certain deep swamp forests in Florida or Arkansas, the ivory-billed is likewise widely believed to be extinct. [126] Weighing up to 500 g (1 lb), the great slaty woodpecker (Mulleripicus pulverulentus) of southeast Asia is the largest woodpecker known to exist. 1 lb) and a length of up to 0. 58 m (1. 9 ft). [127].
  • Barbets are less well-known than toucans and woodpeckers, but they can weigh up to 273 g (9 33 cm (13 in) and 6 oz in the giant barbet (Megalaima virens) [124].
  • The largest jacamar is the great jacamar (Jacamerops aureus). It measures 29. 5 to 30 cm (11. 61 to 11. 81 in) long and varies in weight from 63 to 70 g (2 22 and 2. 47 oz). [128].
  • The South American great grebe (Podiceps major) is the largest species of grebe. It can reach a length of 0. 8 m (2. 6 ft), with a wingspan of 1 m (3. 3 ft) and a weight of over 2 kg (4. 4 lb). [129].
  • The

  • With the largest wingspan of any living bird, the wandering albatross (Diomedea exulans) of the sub-Antarctic oceans is the largest species of Procellariiformes. This species’ maximum dimensions are one length of one 44 m (4. 7 ft) and a wingspan of 3. 65 m (12. 0 ft). [45] Unverified specimens have been reported to measure 5. 3 m (17 ft). [40] Immature wandering albatrosses have weighed as much as 15. 9 kg (35 lb) on their initial flights, with the highest adult weight recorded being 12 7 kg (28 lb). [40].
  • The length, wingspan, and weight of the Southern royal albatross (Diomedea epomophora) are marginally smaller. [115].
  • The largest procellarids is the southern giant petrel (Macronectes giganteus). Its maximum length is 1 m (39 in), and its maximum wingspan is 2 1 m (83 in) and 8 kg (17 lbs) 6 lb).
  • The sole bird in its order, the Hoatzin (Opisthocomus hoazin), is a pheasant-sized South American bird that can weigh up to 1 kg (2 pounds). Its overall length is 65 cm (26 in). 2 lb).
  • The

  • The hyacinth macaw (Anodorhynchus hyacinthinus), which is endangered in the neotropic lowlands, is the largest parrot in terms of length and wingspan. It can grow to a length of almost one 2 m (3. 9 ft) with a wingspan of 1. 4 m (4. 6 ft) and weighing as little as 2 kg (4. 4 lb). [130] The heaviest parrot belongs to the New Zealand parrot family and is the almost extinct kākāpō (Strigops habroptilus)[131]. The flightless kākāpō does not exceed 0. 68 m (2. 2 ft) in length, but weighs up to 4. 1 kg (9. 0 lb). [132].
  • The Alexandrine parakeet, or Palaeornis eupatoria, is the largest parakeet, growing up to 60 centimeters in length and 250 grams in mass.
  • The Australasian palm cockatoo (Probosciger aterrimus) is the largest species in the cockatoo family, growing up to 0 6 m (2. 0 ft) long with a weight of 1. 2 kg (2. 6 lb). [133].
  • The largest sandgrouse is the black-bellied sandgrouse (Pterocles orientalis), which can grow up to 634 g (1 398 lb) and 45 cm (18 in). [134].
  • The

  • With a maximum height of one meter, the emperor penguin (Aptenodytes forsteri) of the Antarctic is the largest species of Sphenisciformes. 35 m (4. 4 ft) and a weight of 46 kg (101 lb). [40] With a maximum height of 1 m (3 feet), the king penguin is the next largest species that still exists. 3 feet) tall and 18 kilograms (40 pounds) heavy [135] Anthropornis nordenskjoeldi, an extinct species, is thought to have grown to a height of 1. 8 m (5. 9 feet) and a maximum weight of 108 kg (238 pounds) [136].
  • The

  • The ostrich, or Struthio camelus, is the largest ratite and is found on the plains of Arabia and Africa. A large male ostrich can reach a height of 2. 8 m (9. 2 ft) and weigh over 156 kg (344 lb). [45] The ostrich has been reported to weigh 200 kg (440 lb), however no real ostriches of this weight have been found. [2] Ostrich eggs are the biggest in the world, weighing one 4 kg (3. 1 lb). The emu (Dromaius novaehollandiae) of Australia reaches 1 to 1. 3 m (3. 3–4. 3 feet) at the shoulder and 150–190 cm (59–75 in) at full height Emu lengths vary from 139 to 164 cm (55 to 65 in), measured from the bill to the tail. The height of the southern cassowary, or Casuarius casuarius, ranges from 127 to 190 centimeters (50 to 75 inches) in Australia and Papua New Guinea. [1] The larger rhea (Rhea americana), native to South America, can reach weights of up to 20–27 kg (44–60 lb) and frequently reaches lengths of 127–140 cm (50–55 in) from beak to tail, with a height of about 1 5 m (4. 9 ft).
  • The extinct elephant birds (Vorombe/Aepyornis) of Madagascar, which were related to ostriches, may have been the largest bird in the fossil record. They exceeded 3 m (9. 8 feet) tall and 500 kg (1,100 lb) heavy. [40] About a millennium ago, the last of the elephant birds went extinct.
  • The South Island giant moa (Dinornis robustus), a member of the New Zealand moa family that became extinct approximately 500 years ago, was the tallest bird in recorded history. The moa stood up to 3. 7 m (12 ft) tall,[45] and, because of its relatively thin frame, weighed about half as much as a large elephant bird, or mihirung. [40].
  • Grey tinamou (Tinamus tao) of western South America is the largest species of tinamou, a group of chunky, elusive ground-birds from neotropical forests. It can reach a weight over 2 kg (4. 4 lb) and length of over 55 cm (22 in). [1].
  • The largest trogon is the resplendent quetzal (Pharomachrus mocinno) of Central America’s montane forest, though a few other quetzals are about the same size. It can weigh more than 226 g (8. 0 oz) and they can measure up to 0 in females and non-breeding or immature males. 4 m (1. 3 ft) from the head to the tail. When their tail streamers grow, adult males can get as long as 0. 6 m (2. 0 ft). [142].

By families edit The

  • The Eurasian goshawk (Accipiter gentilis), found in temperate Eurasia, is the largest of the accipitrine hawks. Although their sizes vary, they typically measure 53–64 cm (21–25 in) in length and 103–117 cm (3 38–3. 84 ft) and weigh 0. 63–1. 4 kg (1. 4–3. 1 lb). [52] It is rivaled in terms of wing size and body mass by the Hensts goshawk (Accipiter henstii) and Meyers goshawk (Accipiter meyerianus).
  • The ferruginous hawk (Buteo regalis) of North America and the upland buzzard (Buteo hemilasius) of Asia are the two largest species of buteonine hawks. The former can have a wingspan of 133–142 cm (4. 36–4. 66 ft), weigh 0. 98–2. 1 kg (2. 2–4. 6 lb) and measure 56–69 cm (22–27 in) in length. [53] The upland buzzard’s weight, which varies from 0 to 95–2. 05 kg (2. 1–4. 5 lb), despite being somewhat bigger at 57–72 cm (22–28 in) in length and 143–161 cm (56–63 in) in wingspan, than the ferruginous hawk.
  • The largest harrier species is thought to be the swamp harrier (Circus approximans), which is found in Australasia. It is 50–60 cm (20–24 in) long, with a wingspan of 120–145 cm (47–57 in) and weighs nothing. 58–1. 1 kg (1. 3–2. 4 lb). [54].
  • The red kite (Milvus milvus) is the largest species of kite. Its dimensions are 60–70 cm (24–28 in) in length, 174–179 cm (69–70 in) in wingspan, and 0 kg in weight. 8–1. 3 kg (1. 8–2. 9 lb).
  • With an average length of one foot, the trumpeter swan (Cygnus buccinator) of Northern North America is the largest species of waterfowl. 82 m (6. 0 ft), a wingspan of 3. 1 m (10 ft) and a weight of 17. 3 kg (38 lb). [55] A Polish cob (Cygnus olor) weighing 23 kg (51 lb) was the heaviest single waterfowl ever documented; it was reportedly too heavy to fly. [40].
  • The Canada goose (Branta canadensis), or more precisely the subspecies known as the giant Canada goose (Branta canadensis maxima), is the largest species of goose. Individuals can reach more than 9. 1 kg (20 lb) in weight. [56].
  • The American Muscovy duck (Cairina moschata) is the largest species of duck. Males can weigh from 4. 5–6. 3 kg (9. 9–13. 9 lb) in weight and up to 86 cm (34 in) in length. [57] But the species is currently assigned to the Tadorninae subfamily, which includes shelgeese and dwarf hares, and the genus is now thought to be paraphyletic. If this is the case, the mallard (Anas platyrhynchos) is the largest species of true ducks, also known as dabbling ducks (Anatinae). [58] They have a wingspan of 82–95 cm (32–37 in), a maximum length of 50–65 cm (20–26 in), and a weight of 1-0. 3 kg (2. 2–2. 9 lb). [59].
  • The largest Apodiformes species are the purple needletail (Hirundapus celebensis) of the Philippine islands and the white-naped swift (Streptoprocne semicollaris), which are native to southern Mexico. Both reach weights of up to 225 g (7. 9 oz), lengths of up to 25 cm (9. 8 in) and wingspans as long as 0. 6 m (2. 0 ft). [60].
  • The giant hummingbird (Patagona gigas) of the Andes Mountains is by far the largest hummingbird species and is traditionally included in this order. Among hummingbirds, the smallest-bodied species of birds, “giant” is a relative term; the giant hummingbird species can weigh up to 24 g (0 85 oz) with a length of 23 cm (9. 1 in). [61].
  • With a maximum length of 25 inches, the adult male black-tailed trainbearer (Lesbia victoriae) is the longest species of hummingbird in the entire order. 5 cm (10. 0 in). The hummingbird’s long tail streamers are mostly responsible for its length. The sword-billed hummingbird is another size champion among hummingbirds. This fairly large species has about half of its 21 cm (8 3 in) length derives from its bill. Of all the birds, this one has the biggest bill-to-body ratio. [62].
  • The

  • The neotropical great potoo (Nycitbius grandis), the largest species of nocturnal birds in this order, can reach a weight of 680 g (1 50 lb) and a height of 60 cm (2. 0 ft). In juvenile Australian tawny frogmouth (Podargus strigoides) specimens, heavier Caprimulgiformes have been observed; these specimens can weigh as much as 1. 4 kg (3. 1 lb). Other species that are almost as big as the potoo include the neotropic, cave-dwelling Papuan frogmouth (Podargus papuensis) of New Guinea and the 48 cm (19 in) neotropic oilbird (Steatornis caripensis). Both the great potoo and the oilbird have wingspans that can exceed one meter three 3 ft), the largest of the order. [63][64].
  • The great eared nightjar (Eurostopodus macrotis), found in East Asia, is the largest species in the nightjar family, although it is smaller in size. Great eared nightjars can reach 150 g (0. 33 lb) and having a height of 41 cm (16 in). [65].
  • The saddle-billed stork of Africa (Ephippiorhynchus senegalensis) is the tallest and longest-bodied species in this order, with a body length that frequently surpasses 1. 5 m (4. 9 feet) tall with a maximum wingspan of 2 7 m (8. 9 ft). [75] The neotropical jabiru (Jabiru mycteria), the Asian greater adjutant (Leptoptilos dubius), and the African marabou stork (Leptoptilos dubius) are among the storks that reach a similar height but are more heavily built. Crumeniferus), with the largest weighing between 8 and 9 kg (18 and 20 lb). [31][76] It is estimated that all three birds can reach or surpass a wingspan of three times that of the Andean condor, with the greater adjutant and marabou coming in almost equal. 16 m (10. 4 ft). [40] Standing up to 1. 53 m (5. 0 ft), with a wingspan of up to 2. 3 m (7. The African goliath heron (Ardea goliath) is the largest heron and egret, growing to a maximum length of 5 feet and a weight of up to 5 kg (11 lb). Juvenile white-bellied heron (A. insignis) have been reported to weigh up to 8. 5 kg (19 lb) with heights of 1. 58 m (5. 2 ft). [77].
  • It’s possible that many of the largest flying birds found in fossil records belonged to the Ciconiiformes family. Argentavis magnificens, the heaviest flying bird ever recorded, is a member of the teratorns, a group thought to be an ally of the New World vultures. [78].
  • The largest ibis is the giant ibis (Thaumatibis gigantea). Adults may reach lengths of 102-106 cm (40–42 in), heights of up to 100 cm (39 in), and weights of about 4 kg. 2 kg (9. 3 lb). Among standard measurements, the wing chord is 52. 3–57 cm (20. 6–22. 12 in), the tarsus is 11 cm (4 in), the tail is 30 cm (12 in), and 3 in) and the culmen is 20. 8–23. 4 cm (8. 2–9. 2 in). Japan’s crested ibis (Nipponia nippon) can grow up to 78 5 cm (30. 9 in) in height and 30. 9 cm (12. 2 in) in length.
  • The speckled mousebird (Colius striatus), the largest species of mousebird, is over 14 inches (36 cm) tall and weighs 2 ounces (57 g). [79].
  • The

  • The Victoria crowned pigeon (Goura victoria) is the largest species in the pigeon/dove complex found in Northern New Guinea. Some exceptionally large Victoria crowned pigeons have reached 3. 7 kg (8. 2 lb) and 85 cm (33 in). The Marquesan imperial pigeon (Ducula galeata), which can reach a maximum size of 0, is the biggest arboreal pigeon. 8 m (2. 6 ft) in diameter around the wings, and one kilogram (2 2 lb). [80].
  • The largest known pigeons and doves are the Rodrigues solitaire (Pezophaps solitaria) and the dodo (Raphus cucullatus). Both flightless species may have exceeded 1 m (3. 3 ft) in height. The dodo is often regarded as the largest pigeon ever recorded, with a potential weight of up to 28 kg (62 lb), however more recent estimates suggest that the average wild dodo weighed about 10 kg. 2 kg (22 lb). [81][82].
  • At up to 48 cm (19 in) in length and 425 g (15 oz), the giant kingfisher (Megaceryle maxima) is the largest kingfisher. 0 oz) in weight. [83] The laughing kookaburra (Dacelo novaeguineae), a common species in Australia, may weigh even more; individuals weighing more than 450 g (0 99 lb) are not uncommon. A kookaburras wingspan can range up to 0. 9 m (3. 0 ft). [84].

Largest extinct birds edit

Based on maximum reported or credible mass, the heaviest extant bird species are listed in the following table; for comparison, the average weight is also provided. Nearly all of these species lack flight, and their bodies are heavier and their bones are denser. The percentage of flightless birds is less than 1% of all extant bird species.


What is the weight of a bird?

Common name
Maximum mass [kg (lb)]
Somali ostrich
130 kg (290 lb)
Southern cassowary
85 kg (187 lb)
Northern cassowary
75 kg (165 lb)
70 kg (150 lb)

How much does a pet bird weigh?

Average Bird Weight Chart
Average Adult Weight (grams)

Why do birds weigh less?

The skeletons of birds are universally described as lightweight as a result of selection for minimizing the energy required for flight. From a functional perspective, the weight (mass) of an animal relative to its lift-generating surfaces is a key determinant of the metabolic cost of flight.