Ducks

species: 
Common Eider
scientific name: 
Somateria mollissima
notes: 

Yellow ring with a black two alpha-numeric code.

note 1 : birds ringed in Oslo-fjord, Norway.

note 2 : used codes are : A00 to A99, C00 to C99, E00 to E99 ...

note 3 :

website sighting submit: 
Colour Ringing Norway
email sighting submit: 
colour-ring type: 
Legring : one, coded.
colour-ring colour (of the c-ring): 
Yellow [Y]
colour-ring code (of the c-ring): 
Two alpha-numeric code (2 letters/numbers).
countries where ringed: 
Norway.