Gulls

species: 
Eurasian Mew Gull
scientific name: 
Larus canus
notes: 

Red  ring with a white four alpha-numeric code, starting code "NA" followed by two numbers.

note 1 : ex. : NA05, NA06.

note 2 : 

website sighting submit: 
Ringmärkningscentralen.
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: 
Sweden.
First letter/number (of the c-ring): 
NA