Terns

species: 
Sandwich Tern
scientific name: 
Thalasseus sandvicensis
notes: 

Dark-blue ring with a white three alpha code, starting letter "Z".

note 1 : used codes are ZAA-ZZZ.

note 2 :

email sighting submit: 
colour-ring type: 
Legring : one, coded.
colour-ring colour (of the c-ring): 
Dark Blue [B]
colour-ring code (of the c-ring): 
Three alpha code (3 letters).
colour-ring position (of the c-ring): 
Tarsus left.
countries where ringed: 
Italy.
Images: 
First letter/number (of the c-ring): 
Z