Crows

species: 
Western Jackdaw
scientific name: 
Corvus monedula
notes: 

White ring with a black four alpha code : starting letter "A" and then three letters.

note 1 : used codes are : "AAAA" till "AZZZ".

note 2 :  used letters are : A, C, E, H, J, L, N, R, S, T, U, Y, Z.

note 3 : birds ringed in Hamburg-Area from 2017 onwards.

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): 
Four alpha code (4 letters).
countries where ringed: 
Germany.
First letter/number (of the c-ring): 
A.