The band is placed on a baby bird, about 9 to 14 days old, by sliding the band over the foot to the leg portion.
The most widely accepted means of identification of birds today is the leg band.
Microchipping and DNA fingerprinting are alternative methods which are gaining in popularity.
Use of colored bands also enables a breeder to more easily distinguish among multiple birds in an aviary without disturbing the birds.
Breeders buying older birds can trace the origins of the birds to ensure that potential pairings are unrelated or to identify certain traits.
Larger birds are stronger and sometimes are able to remove the open bands.