Recommended Ring Size for Birds

Size
Breed
Aluminum Closed & Split
Plastic Split
mm.
A
XF
2.16
Owl Finches, Gold-Breasted Waxbill, Orange-Cheeked Waxbill, Red-Eared Waxbill
B
XF
2.34
Cordon Bleu, Fire Finch, Lavender Finch
C
XF
2.49
Gouldian Finch, Cherry Finch, Green Singing Finch, Silverbills, Star Finch, Heck’s Grassfinch, Zebra Finch, Pictorella, Cherry Finch, Painted Finch, Chestnut Breasted Finch, Red Siskin, Parrot Finches
D
XF
2.67
Green Singing Finch, Cut-Throat Finch, Parrot Finch, Violet Eared Waxbill, European Goldfinch, Bengalese Finch, Chestnut-Breasted Finch, Pictorella Yellow-Rumped Finch, Zebra Finch
E
XCS
2.84
Gloster, Fife, and miniature Canaries, Blackcap, Greenfinch, Nightingale, Yellow Hammer, Chaffinch, Bramble Finch, Red Bunting, Diamond Sparrow, Diamond Firetail,  Yellow Siskin and all Nuns
G
XCL
3.05
Border, Roller, Red Factor, Japanese Hoso, Waterslager, American Singer and Lizard Canaries, Snow Bunting, Red-Faced Pytilia
J
XCL
3.30
Yorkshire, Norwich, Crested and Parisien Frill Canaries, Corn Bunting, Pekin Robin
K
XB
3.94
Java Sparrow, Hawfinch, Shama, Mesia, Pekin Robin, Saffron Finch, Diamond Dove
L
XB
4.09
Budgerigar, Grass Parakeets including Bourkes, Turquoisines, Splendids, Elegants and Bluewings plus Diamond Dove, Chinese Painted Quail, Button Quail, Parrotlets, Bulbuls, Indian Shama
M
X3
4.34
Redrumps, Manycolours, Lovebirds, Mistle Thrush, Blackbird, Shrike, Glossy Starlings, Kakarikis, Lineolated Parakeets, Stanley Rosella, Swift Parrots, Meyer's Lory, Yellow and Red Fronted New Zealand Parakeets
N
1FB
5.33
Cockatiels, Mealie & Golden Mantled Rosellas, Pileated Parrot, Plumheaded Parakeet, Goldie Lorikeet, Lutino & Pied Kakarikis, Marroon Bellied Conure, Pearly Conure, Pileated Red Bellied Conure, Redrumps
P
1FB
5.99
Cloncurry, Pennant, small Quakers, large Quail, Dusky, Peach Fronted, Pyrrhura, Nanday, Jenday Sun, Green Cheeked, Blue Throated & Maroon Bellie Conures,  African Ring Neck, Tippler/Tumbler Pigeons & Doves, Barnards, Golden Mantled Rosella, Perfect Lorikeet, Port Lincolns, Princess of Wales, Quaker Parakeet, Merlin, Sparrowhawk
R
1FB
7.04
Twenty-Eight, Blue Headed Pionus, Larger Rosellas, Crimson, Blue-Winged Conures, larger Quakers, Lesser Hill Mynah, Rainbow, Dusky, Blue-Streaked & Violet Necked Lory, Rock Pebbler, Barrabands, Grey Cheeked Parakeet, Chattering Lory, Coturnix Quail, Crimson Winged Parakeet, Japanese Quail, Meyer's Parrot, Plumheads, Red Bellied Parrot, Red Throated Conure, Senegal Parrot, Merlin(F), Hobby(M), Little Owl, Hen Harrier(M), Sparrow-hawk(F), American Kestrel.
S
2FB
7.57
Derbyan,  & Patagonian Conure, Homing Pigeon, Australian King Parrot, Moustache Parakeets, Red Lory, Hahn’s Macaw, Blue Crowned Pionus, Indian Ringneck Caiques, Senegals, Black Headed Caique, Green Winged King Parrot, Indian Ringnecks, Lesse Patagonian Conure, Noble's Macaw, Pileated Parrot, Montagues Harrier, Scops Owl, Hobby(F), Kestrel.
T
3FB
8.69
Alexandrine Parakeet, Mitred, White Eyed, Red Fronted, White Crowned & Scaly Headed Pionus, White Fronted, Yellow Billed and Tucuman Amazons, Dwarf Macaws, Red Bellied Parrots, Large Lories, Chattering Lories, Cherry Headed Conure, Jardine Parrot, Stella's Lory, Hawk Headed Parrots, Blue Naped Parrot, Bronzed Winged Pionus, Golden Conure, Greater Patagonian Conure, Roseate Cockatoo, Yellow Naped Macaw, Burrowing Owl
U
4PB
9.45
Goffin, Citron Crested, Lesser Sulphur Crested and Rose Breasted Cockatoos, Timneh African Greys, Severe Macaw, White Crowned Turaco, Cuban Amazon, Great Billed Parrot, Green Cheeked Amazon, Hawk-Headed Parrot, Hispanoiolan Amazon, Yellow Billed Amazon, Hen Harrier(F), Marsh Harrier, Coopers Hawk(M), Barn Owl, Tawny Owl, Short-Eared Owl
V
5PB
11.00
Congo African Grey, Medium Sulphur Crested Cockatoos, Mexican Red Headed, Yellow Crowned & Red Lored Amazons, all Eclectus, Black Palm Cockatoo, Caninde Macaw, Chestnut Fronted Macaw, Citron Crested Cockatoo, Eclectus Parrot, Orange Winged Amazon, St. Vincent Amazon, Yellow Naped Amazon, Goshawk(M), Honey Buzzard, Barbary Falcon(M), Coopers Hawk(F), Peregrine Falcon(M), Red-Shouldered Hawk(M)
W
6PB
12.70
Triton, Moluccan and Umbrella Cockatoos, Scarlet Macaw, Greater Sulphur Crested Cockatoo, Blue & Gold Macaw, Military Macaw, Umbrella Cockatoo, Goshawk(F), Peregrine Falcon(F), Common Buzzard, Rough-Legged Buzzard, Gyr Falcon(M), Lanner, Lugger, Red Kite, Barbary Falcon(F), Harris Hawk, Prairie Falcon, Red-Shouldered Hawk(F), Saker Falcon, Swainson's Hawk, Caracara(Mexican Eagle).
X
7PB
14.29
Green Winged and other large Macaws, Leadbeater's, Palm and Sulphur Crested Cockatoos, Red-Tailed Buzzard(M), Gyr Falcon(F), Ferruginous Hawk(M).
Y
8PB
15.98
Hyacinth Macaw, Red-Tailed Buzzard(F), Ferruginous Hawk(F), Osprey, Bengal Eagle Owl, Snowy Owl.
Z

19.00
European Eagle Owl