Lesser Black-backed Gull

Grey (silver) ring with a red two alpha code.

note 1 : used codes are with a ":" or a "+" or a "=" between the two letters.

note 2 :

Grey ring with a black three alpha-numeric code : number/letter/letter 'F'.

note 1 :

Yellow ring with a black three alpha-numeric code.

note 1 : used codes are 1AG-9MG.

Red ring with a white 3 alpha-numeric code.

note 1 : metal ring over c-ring.

Red ring with awhite four alpha-numeric code, starting letter 'C'

note 1 : up to 2014, a total of 5477 rings were delivered since 2001-2013.

note 2 : there can exist small check marks in the code (like dots between characters), inform them also.

note 3 :

Red ring with a white three alpha-numeric code, starting letter 'S'.

note 1 :

Red ring with a white three alpha code.

note 1 : only letters are used on our rings, numbers are not used.

note 2 :  the following letters have not been used:-   E,  G,  I,  M,  O,  Q.

note 3 :   on the 4 letter codes there is a check spot between two of the letters.

note 4 :   most rings are fitted so that the code reads from bottom upwards.

Red ring with white three alpha-numeric code (letter E or F + 2 numbers) (on one leg) and yellow ring (code E) (on other leg).

Red ring with white three alpha-nuemric code (letter E + 3 numbers) (on one leg) and yellow ring (code E) (on other leg).

note 1 :  birds are ringed during June 2004.

White ring with a black three alpha-numeric code (3 numbers and letter 'N' or 'K' and metal ring (on right tibia).

note 1 :

Red ring with a yellow three alpha-numeric code (3 numbers and letter 'N' or 'K' and metal ring (on right tibia).

note 1 :