Gulls

species: 
Great Black-backed Gull
scientific name: 
Larus marinus
notes: 

Orange ring with a 4 alpha-numeric code (last letter 'M' after a 'colon' (on left leg) and metal ring (on right leg).

note 1 : Manx RG use orange ring with a black code : nxx:M , where n=letter and x=number).

note 2 : 

email sighting submit: 
website information: 
Manx Ringing Group.
colour-ring type: 
Legring : one, coded.
colour-ring colour (of the c-ring): 
Orange [O]
colour-ring code (of the c-ring): 
Four alpha-numeric code (4 letters/numbers).
colour-ring position (of the c-ring): 
Tarsus left.
countries where ringed: 
United Kingdom.
Last letter (of the c-ring): 
M