Terns

species: 
Caspian Tern
scientific name: 
Hydroprogne caspia
notes: 

Black ring (on left leg) with a white code KJnn : n is number. No metal ring.

note 1: birds are ringed in Russian Karelia.

email sighting submit: 
colour-ring type: 
Legring : one, coded.
colour-ring colour (of the c-ring): 
Black (Niger) [N]
colour-ring code (of the c-ring): 
Four alpha-numeric code (4 letters/numbers).
countries where ringed: 
Russia.
First letter/number (of the c-ring): 
KJ