Terns

species: 
Caspian Tern
scientific name: 
Hydroprogne caspia
notes: 

Red ring with white a 3 alpha-numeric code.

note 1 : first letters are : A, C, F, H, K, M, R, T, U, Y.

note 2 : 

email sighting submit: 
colour-ring type: 
Legring : one, coded.
colour-ring colour (of the c-ring): 
Red [R]
colour-ring code (of the c-ring): 
Three alpha-numeric code (3 letters/numbers).
countries where ringed: 
Sweden.