Gulls
species:
Black-headed Gull
scientific name:
Chroicocephalus ridibundus
notes:
Dark-blue ring with a white four alpha code : starting letter 'R'.
note 1 : not used letters are : D, G, M, O, Q, W, Y, and Z.
note 2 :
email sighting submit:
colour-ring type:
Legring : one, coded.
colour-ring colour (of the c-ring):
Dark Blue [B]
colour-ring code (of the c-ring):
Four alpha code (4 letters).
countries where ringed:
France.
First letter/number (of the c-ring):
R
