Crows

species: 
Western Jackdaw
scientific name: 
Corvus monedula
notes: 

Blue ring with white four alpha-numeric code (starting code : "X" or "H").

note 1 : project starting in 2018.

note 2 : juvenile and adult birds are ringed in different colonies in eastern Germany.

note 3 : 

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): 
Four alpha-numeric code (4 letters/numbers).
countries where ringed: 
Germany.
First letter/number (of the c-ring): 
X or H