Gulls
species:
Black-headed Gull
scientific name:
Chroicocephalus ridibundus
notes:
White ring with a black four alpha code, starting letter 'Y' followed by three letters.
note 1 :
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 code (4 letters).
countries where ringed:
Serbia.
First letter/number (of the c-ring):
Y
