Gulls

species:

Black-headed Gull

scientific name:

Chroicocephalus ridibundus

notes:

White ring with black four alpha-numeric code (starting letter "A") and metal ring (on other leg).

note 1 : used combinations 2012 till 2017 are : letter/number/number/number OR letter/letter/number/number OR letter/letter/letter/number OR letter/number/letter/letter OR letter/letter/number/letter ... as ex. A001, AC88, AAA4, AA5N, A3NV at Hamburg and Schleswig- Holstein / Germany.

note 2 : 2016 and following years, codes with 5 characters like AF004, AX567 and AD770 are used.

note 3 : rings are to be read from bottom to top.

note 4 : codes like AT000 – AT999 will be used 2017 and following years at Austria.

note 5 :

email sighting submit:

colour-ring type:

Legring : one, coded.

colour-ring colour (of the c-ring):

White [W]

colour-ring code (of the c-ring):

Four alpha-numeric code (4 letters/numbers).

countries where ringed:

Germany.

First letter/number (of the c-ring):