Terns

species: 
Little Tern
scientific name: 
Sternula albifrons
notes: 

Dark-blue ring with a white three alpha-numeric code.

note 1 : used codes are P / letter / letter or P / number / number or P / letter / number.

note 2 : used codes are 0 / letter / letter or 0 / letter / number or 0 / number / number.

note 3 :   

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): 
Dark Blue [B]
colour-ring code (of the c-ring): 
Three alpha-numeric code (3 letters/numbers).
countries where ringed: 
Poland.
First letter/number (of the c-ring): 
P or 0