Common Raven

Dark-green ring with a white two alpha code (on left leg) and metal ring (on right leg).

note 1 : codes starting with A, B, C & D.

note 2 : birds ringed in Sligo, Ireland.

note 3 : 

Red ring with a white three alpha code, starting letter 'H'.

note 1 : 
 

Orange wingtag with a black three numeric code.

note 1 : used codes are 000-999.

note 2 :

Yellow ring with a black four alpha-numeric code, starting letter "C" followed by a three alpha-numeric code.

note 1 :  up to 2014 total 1 ring delivered, since 1996.

note 2 :

Yellow ring with a black 2 alpha-numeric code (on left leg) and metal ring (on right leg).

note 1 : birds ringed in Wicklow County, Ireland.    

note 2 : 

Yellow ring with a black 2 numeric code (on left leg) and metal ring (on right leg).

note 1 : birds ringed in Wicklow County, Ireland.    

note 2 : 

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 :

Yellow ring with a black three numeric code (on left tarsus) and metal ring (on right tarsus).

note 1 : project starts during 2015. 

note 2 :

Wingtag with a two alpha-numeric code.

note 1 : a bird has two wingtags, in a combination of two colours.

note 2 : used colours are yellow, white and pink.

note 3 :

One coloured metal ring (on one leg) and metal ring (on other leg).

note 1 : the colour of the metal ring will be bright silver steel or bronze.

note 2 : note that the steel ring is twice higher than the regular metal ring and bronze ring is of similar height to the regular metal ring.

note 3 :  a unique combination will be applied on a monthly basis.