Gulls

species:

Black-headed Gull

scientific name:

Chroicocephalus ridibundus

notes:

Black ring with a white four alpha code :
* first letter "G"/letter/letter/letter

note 1 : used codes are : GAAA till GZZZ.

note 2 :

email sighting submit:

colour-ring type:

Legring : one, coded.

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

Black (Niger) [N]

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

Four alpha code (4 letters).

countries where ringed:

Israël.

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