Terns
species:
Caspian Tern
scientific name:
Hydroprogne caspia
notes:
White ring with a black three alpha-numeric code, starting letter "X".
note 1 : used codes are : X00-X99, XA0-XZ9 and X0A-X9Z.
note 2 :
email sighting submit:
colour-ring type:
Legring : one, coded.
colour-ring colour (of the c-ring):
White [W]
colour-ring code (of the c-ring):
Three alpha-numeric code (3 letters/numbers).
First letter/number (of the c-ring):
X
