Gulls

species: 
Herring Gull
scientific name: 
Larus argentatus
notes: 

White ring with black 4 alpha-numeric code (starting letter 'K').

note 1 : KJxx or KRxx (where x is a number or a letter).
note 2 : 350 ringed in Russian Karelia during 2002-2007 ; some without metal ring.
note 3: recent years some small check marks has been added in the code (spots, underlines) : please, report them also. 

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: 
Russia.
First letter/number (of the c-ring): 
K