Geese

species: 
Greylag Goose
scientific name: 
Anser anser
notes: 

Yellow neckband with a black four alpha-numeric code, starting letter "X" followed by three numbers.

note 1 :

email sighting submit: 
colour-ring type: 
Neckband.
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: 
Poland.
First letter/number (of the c-ring): 
X