A closed ring is a permanent ID ring fitted to a chick’s leg as a hatchling, this is generally done by the breeder. Two types are commonly used, Aluminium or Stainless Steel. (Plastic is also used in birds with less damaging beaks – see below) Rings are stamped with a mixture of numbers and letters which provide valuable information on a bird’s identity, and once fitted they cannot easily be removed. An example format would be 3 CAGS 20 V
Aluminium rings are generally sold in batches of 10. They are colour coded and produced with consecutive numbers.
In the example above: 3 would be the 3rd bird rung, CAGS could be the breeder’s initials or an organisations ID e.g. PSUK, 20 is the year bred, the year is commonly shown as 2 digits and V is the ring size (size V is used for African Grey Parrots).
Blue aluminium ring showing number 8, initials HP, year '99
Stainless Steel rings can be purchased individually, are uncoloured but tend to follow the same marking format as Aluminium rings. They are more commonly used on larger parrots because of their strength and resistance to damage.
Stainless steel closed ring on a Hyacinthine Macaw. Shows number 24, initials DRUM, year '13
Split rings – Aluminium & Stainless Steel
A split ring can be placed on the bird’s leg at any age but it can be more easily removed. Markings tend to follow the same format as in the example above. Split Aluminium rings should not be used on the majority of parrot species as they will have no difficulty removing them with their strong beaks. Split Stainless Steel rings provide a better solution for species prone to ring removal e.g. Lovebirds and African Grey Parrots.
Most rings sold in the UK are supplied by Avian ID, which also produce rings for the Parrot Society UK (PSUK).
For further guidance on ring formats, sizes and fitting instructions, visit their Website at: Avian ID
Plastic - Closed and Split formats (not recommended for any parrot species).
Plastic ID ring on a pigeon
Stainless Steel Split Pin rings – Of European manufacture, these rings are seen on many parrots bred by Zoos and dedicated Parrot breeding centres e.g. Loro Parque, also used by some vets to identify a bird’s sex. Gold coloured rings are used for hens and black rings used for cocks.
Stainless steel split pin rings used for sex ID. Left - gold ring for hen, pin just visible (left leg ordinary closed ID ring)
Right - black ring for cock bird
Split Steel rings - Once commonly used on larger parrots to indicate the sex of a bird. Often stamped with a Vet’s initials, ring placed on the left leg for a Hen and on the right leg for a Cock.
Stainless steel sexing ring, with a number & vet's initials
Ring Colours by Year
Ring colours generally follow the format used by COM (Confederation Ornithologique Mondiale) and are now cycled every 6 years. The new 6 year colour cycle was set in 2016.
Orange - 2016
Dark Blue - 2017
Red - 2018
Black – 2019
COM Green - 2020
Violet - 2021
Going back over the years, the colours are as follows:
2020 COM (Pastel) Green
2017 Dark Blue
2014 Com (Pastel) Green
2011 Dark Blue
2001 Dark Blue
1999 Light Blue
1995 Dark Blue
1990 Light Blue