Terns

species: 
White-winged Black Tern
scientific name: 
Chlidonias leucopterus
notes: 

Yellow leg flag with a black two alpha code (on right tarsus) and metal ring (on left tarsus).

note 1 : this project has a goal to find out the ways of dispersal white-winged tern according to spring flood water level and clear up the questions of white-winged tern nesting ecology.

note 2 :

email sighting submit: 
colour-ring type: 
Flag : one, uncoded.
colour-ring colour (of the c-ring): 
Yellow [Y]
colour-ring code (of the c-ring): 
Two alpha code (2 letters).
colour-ring position (of the c-ring): 
Tarsus right.
countries where ringed: 
Ukraine.