Crows

species: 
Western Jackdaw
scientific name: 
Corvus monedula
notes: 

Yellow ring with a black four alpha-numeric code [starting letter 'E' followed by three alpha-numerics ] (on left leg) and metal (on right leg).

note 1 : used codes : letter 'E followed by : number/number/number or letter/number/number.

note 2 :

website sighting submit: 
European colour-ring Birding submit
email sighting submit: 
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).
colour-ring position (of the c-ring): 
Tarsus left.
countries where ringed: 
The Netherlands.
First letter/number (of the c-ring): 
E