Ducks

species: 
Mallard
scientific name: 
Anas platyrhynchos
notes: 

Pale-blue nasal saddle with three digits or black alphanumeric symbols.

note1 : AX|⃝   | AX or AX|+|AX.

note 2 : project, "Plan Complementario de I+D+ i de Biodiversidad en Extremadura (Biodiversidad y Cambio Global, BioCaBal-2030)".

note 3 : birds ringed in Extremadura, Spain since 2023.

note 4 :

website sighting submit: 
Oficina de Anillamiento
email sighting submit: 
email sighting submit (2): 
website information: 
Oficina de Anillamiento
colour-ring type: 
Nasal saddle.
colour-ring colour (of the c-ring): 
Pale Blue [P]
colour-ring code (of the c-ring): 
Three alpha-numeric code (3 letters/numbers).
countries where ringed: 
Spain.