Great Skua

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

note 1 :

Black ring with a yellow two alpha-numeric code.

note 1 : for codes - 0R to 9T - contact Jim Lennon : jjlennon17@gmail.com

note 2 : for all other codes - contact David Aiton : davidaiton@outlook.com

note 3 :

Dark-blue ring with a white three alpha-numeric code, starting with "A"

note 1 : birds ringed on Sule Skerry, UK.

note 2 :

Dark-green ring with a white two alpha-numeric code.

note 1 : used codes are (letter + number).

note 2 : 

Light-green ring with a black two alpha-numeric code.

note 1 : used codes are : letter + number.

note 2 : 

Yellow ring with a black two alpha-numeric code.

note 1 : for codes - A0 to G9 - contact Jim Lennon : jjlennon17@gmail.com

note 2 : for all other codes - contact David Aiton : davidaiton@outlook.com

note 3 :

Pale-Blue ring with a black two alpha-numeric code.

note 1 : used codes are : letter + number.

note 2 : 

Orange ring with a black two alpha-numeric code.

note 1 : used codes are : letter + number.

note 2 : 

White ring with a black two alpha-numeric code.

note 1 : for codes - Q0 to S9 - contact Jim Lennon : jjlennon17@gmail.com

note 2 : for all other codes - contact David Aiton : davidaiton@outlook.com

note 3 :

Black ring with a white two alpha-numeric code.

note 1 : used codes : letter+number.

note 2 :