Ducks

species: 
Marbled Duck
scientific name: 
Marmaronetta angustirotris
notes: 

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

note 1 :

email sighting submit: 
colour-ring type: 
Legring : one, coded.
colour-ring colour (of the c-ring): 
Dark Blue [B]
colour-ring code (of the c-ring): 
Three alpha-numeric code (3 letters/numbers).
countries where ringed: 
Italy.