Working with different agencies and individual aviculturists , the IOA have compiled what we consider to be one of the most comprehensive list of ring sizes available to UK bird breeders . If you have any sizes that we may have missed please inform us so that we may keep an up to date list. email lizcol~sky.com
Please note that in some lists we have included the species but are unsure of the correct ring size , we hope that aviculturists that breed these species will supply the information so that we may share it with the bird keeping world.
