Q: My cockatiel has a ring on its leg with letters and numbers on it. What is it for?
– Beverly F., Staten Island, NY
A: The ring is called a leg band and it is intended as a means to identify your bird’s place of origin as well as some other information.
The practice of banding began in North America a couple of hundred years ago by field researchers in an effort to keep track of the populations of wild migratory birds and local flocks.
In later years, as parrots became popular pets in North America, their importation (as well as all other bird species) began being carefully tracked by USDA (United States Department of Agriculture). Imported birds often bring with them the diseases that are prevalent in their native habitats and following an outbreak of psittacosis in the early 1900s, the US clamped down on bird importation and finally set a ban on it in 1992.
Because banding is practical, safe and non-invasive to a bird, you almost never see a bird in the company of humans without one. There are two kinds of legbands that are relative to us as parrot owners:
- The closed leg bands that we see on parrots indicate that it has been captive bred. This band is an unbroken ring that is slid onto the small leg of hatchling and becomes a permanent fixture once the bird has reached maturity.
- The open band, a rounded split ring that is placed on the leg of an adult bird, indicates that it was at one point detained in an importation station. A bird with an open band was either brought into the country as a wild caught bird prior to the importation ban, or was transported as a pet from another country and stayed in the importation station during a period of quarantine.
Because there are so many leg bands on so many birds for so many different reasons, it makes sense that each should bear markings that make them distinguishable from all others. Eventually, early in the leg band’s history, a much needed system began to develop using numbers and letters that revealed information about the wearer’s origins.
Unfortunately the system is not yet a universal one within the breeding community. The closed bands we see on most companion birds do not always carry the same information. The breeder’s ID code, the year of hatching and an ID# assigned to the bird may or may not all appear on a band.
Unless the bands were supplied to the breeder through a parrot society, such as the AFA (American Federation of Aviculture), there are no standards for the information that is contained on them. There are many breeders out there doing things in their own ways because there isn’t a system to follow that has been set in stone.
Usually, there are letters that identify the breeder’s state that can give you a starting point for investigation.
The open band is by far the easier to track. Importation stations are either USDA owned (most are closed now) or privately owned (but supervised by the USDA), meaning that there are only two band code systems to consider and each relates to a limited number of importation stations throughout the country (less than 100 compared to the thousands of breeders using closed bands.)
A USDA band will always carry the letter USDA followed by 2 or 3 letters that identify the state, and city if more than one station exists in that state. It will be followed by 3 or 4 identifying numbers, for example: USDAM 1234. This traces back to a station in Miami.
A quarantine band from a privately owned station will always have three letters followed by three numbers, such as CRO 123. The first letter indicates the state is California, the second letter IDs the station and the third letter and the following three numbers identify the bird.
Patty Jourgensen specializes in avian health, behavior and nutrition and has been working with and caring for rescue birds since 1987.
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