Gulls

species: 
Caspian Gull
scientific name: 
Larus cachinnans
notes: 

Dark-blue ring with a white four alpha-numeric code starting letter 'E' followed by number/number/number or letter/number/number.

note 1 : letter "E"-number-number-number since 2007, E-letter-number-number since 2025.

note 2 : 

email sighting submit: 
email sighting submit (2): 
colour-ring type: 
Legring : one, coded.
colour-ring colour (of the c-ring): 
Dark Blue [B]
colour-ring code (of the c-ring): 
Four alpha-numeric code (4 letters/numbers).
countries where ringed: 
Hungary.
First letter/number (of the c-ring): 
E