Auks

species: 
Black Guillemot
scientific name: 
Cepphus grylle
notes: 

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

note 1 : birds ringed in the UK, Island of Stroma.
note 2 : birds carry GPS and TDR tags.

email sighting submit: 
colour-ring type: 
Legring : one, coded.
colour-ring colour (of the c-ring): 
White [W]
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.