Gulls
species:
Black-headed Gull
scientific name:
Chroicocephalus ridibundus
notes:
Pale-blue wingtag with a two alpha-numeric code (starting letter "A").
note 1 : between 1992 and 1995 1063 birds have been wingtagged (783 white, 265 yellow and 15 blue).
email sighting submit:
colour-ring type:
Wingtag : coded.
colour-ring colour (of the c-ring):
Pale Blue [P]
colour-ring code (of the c-ring):
Two alpha-numeric code (2 letters/numbers).
countries where ringed:
Spain.
