Gulls
species:
Black-headed Gull
scientific name:
Chroicocephalus ridibundus
notes:
Red ring with a white two alpha-numeric code.
note 1 : old red rings are turning pink.
note 2: a "." sign is to be read within the codes.
note 2 : code used is lettter/number (A2-Z9) and number/letter (1A-9Z).
note 3 : some 850 red rings will be used from 2004 until 2010.
note 4 : all birds ringed during winter in city-parks.
note 5 : all rings have to be read from bottom to top.
email sighting submit:
website information:
colour-ring type:
Legring : one, coded.
colour-ring colour (of the c-ring):
Red [R]
colour-ring code (of the c-ring):
Two alpha-numeric code (2 letters/numbers).
colour-ring position (of the c-ring):
Tarsus left.
countries where ringed:
The Netherlands.
Images:
