Jay

Red ring with a white three alpha-numeric code (letter/number/number) (on left leg) and metal ring (on right leg).

note 1 : 

White ring with a black three alpha-numeric code, starting letter "C" (on left tarsus).

note 1 : used codes are : letter "C" and two numbers ; letter "C" and letter/number ; letter "C" and number/letter.

note 2 :

White ring with a black three alpha code, starting letter "C" (on left tarsus).

note 1 :

Yellow ring with three alpha-numeric code (letters A, C, F, H, L, M /number/number (on the right tarsus) and metal ring (on the left tarsus).

note 1 :

White ring with a black two alpha-numeric code (on left leg) and metal ring (on right leg).

note 1 : codes used: "Letter+Number".

note 2 : birds ringed in Norfolk, UK.

note 3 :

Combination of :
* two plain rings (one always pink or brown) (on left tarsus).
* one plain c-ring and one metal ring  (on right tarsus).

note 1 : used colours are: white, pink, brown,  yellow, dark-blue, light- blue, green, black, red.

note 2 : (first : leg specified and colour brown added, second: colour brown added).

note 3 :

Combination of :
* two numeric rings (on left or right tarsus).
* metal ring (on other tarsus).

note 1 : used colours are : dark-green, orange, black, red, white, yellow.

note 2 :  each ring has a two numeric code.

note 3 : 

Dark-blue ring with a white two numeric code (on on leg) and metal ring (on other leg).

note 1 : 

Combination of :
* 1 or 2 or 3 c-rings on one leg.
* steel ring on other leg.

note 1 :  used colours are : white, red, yellow, orange, blue, lime, pale, carmin, darkgreen.

note 2 : 

Combination of 2 - 3 c-rings :
* metal ring (on left leg)
* 2 c-rings (on right leg)
OR
* c-ring above metal (on left leg)
* 2 c-rings (on right leg).

note 1 : birds ringed in UK, county Cambridgeshire.

note 2 : used colours are white, green, yellow, orange, red, blue, silver; red, blue and green with white stripe.