Gulls

species: 
Caspian Gull
scientific name: 
Larus cachinnans
notes: 

Red ring with a white four alpha-numeric code, starting letter 'U' (on right leg) and metal ring.

note 1 : starting letter 'U', followed by a number and two letters.

note 2 :
 

email sighting submit: 
email sighting submit (2): 
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: 
Israël.
First letter/number (of the c-ring): 
U