Crows

species: 
Common Raven
scientific name: 
Corvus corax
notes: 

Yellow ring with a black four alpha-numeric code : 2 letter and 2 numbers.

note 1 : 2 coloured metal rings on opposite leg as coded ring.

note 2 : additional wingtags have been placed.

note 3 :

email sighting submit: 
colour-ring type: 
Legring : one, coded.
colour-ring colour (of the c-ring): 
Yellow [Y]
colour-ring code (of the c-ring): 
Four alpha-numeric code (4 letters/numbers).
countries where ringed: 
Austria.
First letter/number (of the c-ring): 
AT