Ring-billed Gull

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).

note 1 :

Red ring with a white code (Y56).

note 1 : bird is ringed on 26.02.2006 in Copenhagen, Denmark.

Red ring with a white four alpha-numeric code : only this PAA3.

note 1 :

White ring with a black 4 alpha-numeric code : starting letter 'J' and three letters/numbers.

note 1 : all birds are ringed in Norway.

Yellow ring with a black three alpha code and a metal ring.

note 1 :

Blue ring with a white three alpha code and a metal ring.

note 1 :