Ducks

species: 
Common Shelduck
scientific name: 
Tadorna tadorna
notes: 

Black rings with a white two alpha code (starting AA).

note 1 : the project started during winter 2000-01 around the Derwent Valley, Yorkshire, UK.

note 2 :

email sighting submit: 
email sighting submit (2): 
website information: 
Lower Derwent Valley NNR ringing blog
colour-ring type: 
Legring : one, coded.
colour-ring colour (of the c-ring): 
Black (Niger) [N]
colour-ring code (of the c-ring): 
Two alpha code (2 letters).
countries where ringed: 
United Kingdom.