Mediterranean Gull

Yellow ring with black 4 numeric code, starting number '2'.

note 1 : used codes : 2100 - 2199.

note 2 : birds ringed Norfolk, UK.

note 3 : 

Black ring with a white four alpha-numeric code, starting number "4".

note 1 :

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

note 1 :

Red ring with a white 4 alpha code : letter 'P'/letter/letter/letter.

note 1 :

White ring with a black five alpha-numeric code.

note 1 : starting letter "J" followed by a four alpha-numeric code.

note 2 :

White ring with a black four alpha-numeric code.

note 1 : starting letter "J" followed by a three alpha-numeric code.

note 2 :

Yellow ring with black 4 alpha-numeric code, starting letter "A", some having a dot "." in the centre.

note 1 : ca. 30 birds in this scheme were ringed in Sweden.

note 2 : new codes are : the A9/letter/letter don't have a dot in the middle.

note 3 :

Black ring with a white four alpha-numeric code, starting number "8" followed by three letters.

note 1 : used letters are : A, E, H, J, K, L, N, P, T, V.

note 2 :

Dark-blue ring with a white four alpha-numeric code  : starting with the country-code « 5 », followed by 2 numbers and one letter (E, H or J) (on one leg) and metal ring (on other leg).

note 1 : used codes are :
500E, 501E, 502E, 503E, …., 598E, 599E ;
500H, 501H, 502H, 503H, …., 598H, 599H ;
500J, 501J, 502J, 503J, …., 598J, 599J ;

note 2 :

White ring with black four numeric code (on one leg) and metal ring (on other leg).

note 1 :