Gulls

species: 
Lesser Black-backed Gull
scientific name: 
Larus fuscus
notes: 

Red ring with white five alpha-numeric code : starting letter 'C' and xxxx (where x is a number or letter).

note 1 :

email sighting submit: 
colour-ring type: 
Legring : one, coded.
colour-ring colour (of the c-ring): 
Red [R]
colour-ring code (of the c-ring): 
Five alpha-numeric code (5 letters/numbers).
countries where ringed: 
Finland.
First letter/number (of the c-ring): 
C