Gulls
species:
Black-headed Gull
scientific name:
Chroicocephalus ridibundus
notes:
Yellow ring with a black four alpha-numeric code (starting letter 'W', followed by 3 alpha-numeric code).
note 1 : some of these codes may be used on Eurasian Mew Gull (Larus canus).
note 2 :
email sighting submit:
colour-ring type:
Legring : one, coded.
colour-ring colour (of the c-ring):
Yellow [Y]
colour-ring code (of the c-ring):
Four alpha-numeric code (4 letters/numbers).
countries where ringed:
Czech Republic.
First letter/number (of the c-ring):
W
