Terns

species: 
Common Tern
scientific name: 
Sterna hirundo
notes: 

Orange ring with a black three alpha code, starting letter "K" (on one leg) and metal ring (on other leg).

note 1 :

email sighting submit: 
contactperson: 
Jelena Kralj,
colour-ring type: 
Legring : one, coded.
colour-ring colour (of the c-ring): 
Orange [O]
colour-ring code (of the c-ring): 
Three alpha code (3 letters).
countries where ringed: 
Croatia.
First letter/number (of the c-ring): 
K