Crows

species: 
Western Jackdaw
scientific name: 
Corvus monedula
notes: 

Yellow ring with a black four alpha-numeric code, starting letter "M" followed by 3 numbers.

note 1 : only juvenile birds are ringed.

note 2 :

email sighting submit: 
contactperson: 
Bird Ringing Centre, Swedish Museum of Natural History,
colour-ring type: 
Legring : one, coded.
colour-ring colour (of the c-ring): 
Yellow [Y]
colour-ring code (of the c-ring): 
Four alpha-numeric code (4 letters/numbers).
countries where ringed: 
Sweden.
First letter/number (of the c-ring): 
M