Rails and coots

Eurasian Coot
scientific name: 
Fulica atra

White ring with a black 3 alpha code (AAA-ZZZ) (on left leg) and BTO-metal ring (on right leg).

note 1 : used letters are : A, B, C, D, F, H, I, J, K, L, N, R, S, T, V, X, Z.

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).
countries where ringed: 
United Kingdom.