Terns

species: 
Common Tern
scientific name: 
Sterna hirundo
notes: 

White ring with a three alpha code, starting letter "X".

note 1 :

website sighting submit: 
European colour-ring Birding submit
contactperson: 
Sander Lilipaly
colour-ring type: 
Legring : one, coded.
colour-ring colour (of the c-ring): 
White [W]
colour-ring code (of the c-ring): 
Three alpha code (3 letters).
countries where ringed: 
The Netherlands.
First letter/number (of the c-ring): 
X