Ducks

species: 
Red-crested Pochard
scientific name: 
Netta rufina
notes: 

Yellow nasal tag with a black alpha-numeric code.

note 1 :

email sighting submit: 
contactperson: 
Petr Musil
colour-ring type: 
Nasal saddle.
colour-ring colour (of the c-ring): 
Yellow [Y]
countries where ringed: 
Czech Republic.