Crows

species: 
Common Raven
scientific name: 
Corvus corax
notes: 

Yellow wingtag and yellow ring with a three alpha-numeric code : number/letter/number. 

note 1 : birds are ringed in several areas of Catalonia : some birds wear wing-tags.
Some birds were translocated from areas of high abundance and released away to prevent damage to crops.

note 2 :

email sighting submit: 
email sighting submit (2): 
colour-ring type: 
Wingtag : combination with coded legring.
colour-ring colour (of the c-ring): 
Yellow [Y]
colour-ring code (of the c-ring): 
Three alpha-numeric code (3 letters/numbers).
countries where ringed: 
Spain.
Images: