Gulls

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

Blue (dark) ring with a white four alpha-numeric code, starting letter 'J'.

note 1 : used letters for the dark-blue rings are: A, C, G, E, H, J, K, L, M, N, P, R, S, T, U, V, X, Y, Z.

website sighting submit: 
Colour Ringing Norway
email sighting submit: 
email sighting submit (2): 
colour-ring type: 
Legring : one, coded.
colour-ring colour (of the c-ring): 
Dark Blue [B]
colour-ring code (of the c-ring): 
Four alpha-numeric code (4 letters/numbers).
countries where ringed: 
Norway.
First letter/number (of the c-ring): 
J