Tits

species: 
Blue Tit
scientific name: 
Parus caeruleus
notes: 

White ring with a black 3 alpha-numeric code (letter/number/number)

note 1 : used codes are:A01-A00, C01-C00, E01-E00,

note 2 :

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).
countries where ringed: 
Poland.