Terns

species: 
Common Tern
scientific name: 
Sterna hirundo
notes: 

White ring with a black 3-alpha code.

note 1 : most birds are ringed as pulli and have the c-ring on their left tarsus and a metal ring on the right.

note 2 : used combinations are : PAA-PZZ ;

note 3 : used letters are : A, C, E, F, H, J, K, L, N, P, R, S, T, U, V, X, Y, Z.

note 4 : 

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 code (3 letters).
First letter/number (of the c-ring): 
P