Gulls
species:
Black-headed Gull
scientific name:
Chroicocephalus ridibundus
notes:
Black ring with a white four alpha-numeric code.
note 1 : used codes are : K201 - K399.
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-numeric code (4 letters/numbers).
countries where ringed:
Russia.
First letter/number (of the c-ring):
K
