Woodpeckers

species: 
Three toed Woodpecker
scientific name: 
Picoides tridactylus
notes: 

White ring with a black 3 alpha-numeric code (on right tarsus) and metal ring (on left tarsus) : letter/number/number.

note 1 :

website sighting submit: 
Ornithological Station, Museum and Institute of Zoology of the Polish Academy of Sciences.
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): 
Three alpha-numeric code (3 letters/numbers).
colour-ring position (of the c-ring): 
Tarsus right.
countries where ringed: 
Poland.