Gulls

species: 
Herring Gull
scientific name: 
Larus argentatus
notes: 

Black ring with a white 4 alpha-numeric code, starting letter 'C').

note 1 : Cxxx or Cxxxx (where x is a number or letter).

note 2 : up to 2014, a total of 2780 rings delivered since 1997-2000.

note 3 :

website sighting submit: 
Report form for Finnish ring recoveries.
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: 
Finland.
First letter/number (of the c-ring): 
C