Terns
species:
Gull-billed Tern
scientific name:
Sterna nilotica
notes:
Blue ring with a white three alpha-numeric code.
note 1 :
email sighting submit:
colour-ring type:
Legring : one, coded.
colour-ring colour (of the c-ring):
Dark Blue [B]
colour-ring code (of the c-ring):
Three alpha-numeric code (3 letters/numbers).
countries where ringed:
Italy.