Lesser Black-backed Gull

Orange ring with a black four alpha-numeric code : xxx and letter 'H', where x can be a letter or a number.

note 1 :

White wingtag with a black three alpha-numeric code.

note 1 : used codes are : letter "E" followed by a letter and a number.

note 2 : 

Black ring with a white four alpha-numeric code, starting letter "X".

note 1 : 

White ring with a black five alpha-numeric code, starting letter 'C'.

note 1 : up to 2014, a total of 3 rings were delivered since 1996-1998.

note 2 :

White ring with a black four alpha code, starting letter C'.

note 1 : up to 2014, a total fo 2912 rings were delivered since 2001-2012.

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

note 3 :

Orange ring with black five alpha-numeric code : starting letter 'C' and xxxx (where x is a number or letter).

note 1 :

Red ring with white five alpha-numeric code : starting letter 'C' and xxxx (where x is a number or letter).

note 1 :

White ring with black five alpha-numeric code : starting letter 'C' and xxxx (where x is a number or letter).

note 1 :

Yellow ring with black five alpha-numeric code,  starting letter 'C'.

note 1 : up to 2014, a total of 16 rings were delivered since 2009

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

note 3 :

White ring with black one alpha code followed by a '+' (on right tibia) and metal ring (on left tarsus).

note 1 :