Terns

species: 
Sandwich Tern
scientific name: 
Thalasseus sandvicensis
notes: 

Dark-green ring with a white three alpha-numeric code (starting letter "M") and metal ring (on other leg).

note 1 : first letter "M" followed by other letters (used : A, C, F, H, J, L, M, N, P, R, T, U, V, W and X) and/or numbers (used : 0 till 9).

note 2 : birds ringed since 2022.

note 3 : generally, PVC ring on left tarsus.

note 4 :

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): 
Dark Green [G]
colour-ring code (of the c-ring): 
Three alpha-numeric code (3 letters/numbers).
countries where ringed: 
Spain.
First letter/number (of the c-ring): 
M