Gulls

species:

Black-headed Gull

scientific name:

Chroicocephalus ridibundus

notes:

White ring with a black four alpha-numeric code (starting letter 'Z' / number / number /letter (on right tarsus) and metal ring (on left tarsus).

note 1 : some of these codes may be used on Common Gulls (Larus canus).

note 2 :

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).

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

Tarsus right.

countries where ringed:

Czech Republic.

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