Normal Body Weights in Birds

Reported normal body weights for a given species can vary significantly. Always rely more on the assessment of body condition rather than body weight alone.

Conure on scale perch

Reported weights in selected companion birds
Species Average body weight (grams) Reported range (grams)
Zebra finch 15 10-16
Canary 22 12-30
Budgerigar parakeet 30 25-35
Parrotlet, Pacific 30 30-34
Lovebird 45 45-70
Conure, Green-cheeked 70 60-80
Cockatiel 90 80-125
Ring-neck parakeet 115
Conure, Blue-crowned 140 130-180
Macaw, Hahn’s 140 120-160
Quaker parakeet 105 90-150
Senegal parrot 125 110-130
Mynah 180-260
Pigeon (rock dove) 240-300
Pionus, Blue-headed 250 230-260
Cockatoo, Goffin’s 350 220-390
African Grey parrot, Timneh 350 300-400
Severe macaw 350 300-450
Cockatoo, Citron-crested 360 360-425
African Grey parrot, Congo 500 450-600
Amazon parrot, Orange-Winged 400 300-450
Amazon, Blue-fronted 400 300-500
Eclectus parrot 432 388-524
Amazon, Yellow-naped 500 480-680
Amazon, Double yellow-headed 568 450-650
Cockatoo, Umbrella 650 400-700
Cockatoo, Moluccan 900 700-1000
Macaw, Military 900
Macaw, Scarlet 1000 900-1100
Macaw, Blue and Gold 1100 900-1300
Macaw, Green-winged 1200 1200-1600
Macaw, Hyacinth 1355 1250-1695
Normal reported weights in selected raptors
Species Scientific name Mean weight (kilograms) Male (kg) Female (kg)
Northern saw-whet owl Aegolius acadicus 0.08
American kestrel Falco sparverius 0.12 0.097-0.12 0.10-0.15
Sharp-shinned hawk Accipiter striatus 0.14 0.09-0.11 0.15-0.22
Western screech owl Otus kennicottii 0.15
Burrowing owl Athene cunicularia 0.15
Eastern screech owl Otus asio 0.18 0.17-0.23 same as male
Merlin Flaco columbarius 0.19 0.16-0.17 0.22-0.25
Mississippi kite Ictinia mississippiensis 0.28
Broad-winged hawk Buteo platypterus 0.39 0.31-0.48 same as male
Northern harrier Circus cyaneus 0.42
Cooper’s hawk Accipiter cooperii 0.45 0.30-0.40 0.48-0.68
Barn owl Tyto alba 0.46 0.20-0.40 0.35-0.57
Red-shouldered hawk Buteo lineatus 0.63 0.46-0.93 (same as male
Prairie falcon Falco mexicanus 0.72
Barred owl Strix varia 0.72 0.33-0.51 same as male
Peregrine falcon Falco peregrinus 0.72 0.55-0.85 1.11-1.60
Harris hawk Parabuteo unicinctus 0.90 0.55-0.80 0.85-1.30
Northern goshawk Accipiter gentilis 0.95 0.65-0.85 0.95-1.20
Great gray owl Strix nebulosa 1.08
Red-tailed hawk Buteo jamaicensis 1.08
Great horned owl Bubo virginianus 1.4 1.38-1.87 same as male
Gyrfalcon Falco rusticolus 1.40
Eurasian eagle owl Bubo bubo 1.50-2.50 2.25-3.80
Osprey Pandion haliaetus 1.6
Snowy owl Nyctea scandiaca 1.83
Turkey vulture Cathartes aura 1.83
Black vulture Coragyps atratus 2.00
Bald eagle Haliaceetus leucocephalus 4.33
Golden eagle Aquila chrysaetos 4.58 2.85-4.00 3.65-6.70
California condor Gymnogyps californianus 10.5
Andean condor Vultur gryphus 11-15 8-11

References