Gulls

species: 
Mediterranean Gull
scientific name: 
Ichthyaetus melanocephalus
notes: 

Red ring with a white 4 alpha-numeric code, starting letter 'T'.

note 1 : only four birds are ringed with this Eurasian Mew Gull codes.
note 2 : birds with this  ‘a-typical’ code are  T121, T081, T078, T1333.

email sighting submit: 
website information: 
Mediterranean Gull colour-ring codes
colour-ring type: 
Legring : one, coded.
colour-ring colour (of the c-ring): 
Red [R]
colour-ring code (of the c-ring): 
Four alpha-numeric code (4 letters/numbers).
countries where ringed: 
Poland.
First letter/number (of the c-ring): 
T