Swans

species: 
Mute Swan
scientific name: 
Cygnus olor
notes: 

Black ring with a white three alpha-numeric code (number/number/letter).

note 1 : 

website sighting submit: 
Colour Ringing Norway,
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): 
Three alpha-numeric code (3 letters/numbers).
countries where ringed: 
Norway.