Gulls

species: 
Lesser Black-backed Gull
scientific name: 
Larus fuscus
EURING code: 
05910
notes: 

Blue ring with a white four alpha-numeric code, starting letter 'F', followed by a colon (:) and three alpha-numeric or numeric code (on left tarsus).

note 1 :  

email sighting submit: 
snailmail sighting submit: 
Flatholm Gulls,
colour-ring type: 
Legring : one, coded.
colour-ring colour: 
Blue (Dark) [B]
colour-ring code: 
Four alpha-numeric code (4 letters/numbers).
colour-ring position: 
Tarsus left.
countries where ringed: 
United Kingdom.
First letter/number: 
F