Woodpeckers

species: 
Wryneck
scientific name: 
Jynx torquila
notes: 

Black ring with a white three alpha-numeric code.

note 1 : project started without agreement , no contact known.

note 2 :

colour-ring type: 
Legring : one, coded.
colour-ring colour (of the c-ring): 
Black (Niger) [N]
colour-ring code (of the c-ring): 
Three alpha-numeric code (3 letters/numbers).
Images: