Shrikes

species: 
Red-backed Shrike
scientific name: 
Lanius collurio
notes: 

Dark-blue ring with a white 3 alpha code (starting letter 'B').

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

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 code (3 letters).
countries where ringed: 
Bulgaria.
First letter/number (of the c-ring): 
B