Skuas

species: 
Great Skua
scientific name: 
Stercocarius skua
notes: 

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 :

colour-ring type: 
Legring : one, coded.
colour-ring colour (of the c-ring): 
Yellow [Y]
colour-ring code (of the c-ring): 
Two alpha-numeric code (2 letters/numbers).
colour-ring position (of the c-ring): 
Tarsus left.
countries where ringed: 
United Kingdom.