Black-headed Gull
scientific name: 
Chroicocephalus ridibundus

White ring with 4 alpha-numeric code  :
starting letter 'E', followed by a number and 2 letters.
starting letter 'E', followed by 2 letters and 1 number.
starting letter 'E', followed by 1 letter / 1 number / 1 letter. (see note 3).

starting letter 'E', followed by 1 number/ 1 letter/ 1 number.

note 1 : do check carefully the code as their is another project/another projectleader. See note 4.  

note 2 : used codes are E0AA-E9ZZ, EAA0-EZZ9, E0A0-E9Z9, EN0A-EZ9Z and a few from the series E00A-E99Z or EA00-EZ99.

note 3 : the serie EV.A0-EV.Z9 contains a dot as check, please report this dot by the remarks.

note 4 : used codes : EA0A till EM9Z are ringed at Griend, The Netherlands. Sightings have to be mailed tot Date Lutterop :

note 5 :

email sighting submit: 
colour-ring type: 
Legring : one, coded.
colour-ring colour (of the c-ring): 
White [W]
colour-ring code (of the c-ring): 
Four alpha-numeric code (4 letters/numbers).
countries where ringed: 
The Netherlands.
First letter/number (of the c-ring):