Terns

species: 
Common Tern
scientific name: 
Sterna hirundo
notes: 

Black ring with a white three alpha code and metal ring (on other leg).

note 1 : starting letter "A", followed by letters. Used codes : AAA-AZZ.

note 2 : birds ringed since 2023.

note 3 :

website sighting submit: 
Oficina de Anillamiento
email sighting submit: 
website information: 
Oficina de Anillamiento
colour-ring type: 
Legring : one, coded.
colour-ring colour (of the c-ring): 
Black (Niger) [N]
colour-ring code (of the c-ring): 
Three alpha code (3 letters).
countries where ringed: 
Spain.
First letter/number (of the c-ring): 
A