Ducks

species: 
Ruddy Shelduck
scientific name: 
Tadorna ferruginea
notes: 

Yellow neckband with a black two alpha code.

note 1 : birds have also a yellow legring with the same, black two alpha code.

note 2 :

website sighting submit: 
Tracking Marked Geese.
colour-ring type: 
Neckband.
colour-ring colour (of the c-ring): 
Yellow [Y]
colour-ring code (of the c-ring): 
Two alpha code (2 letters).
countries where ringed: 
The Netherlands.