Cranes

species: 
Common Crane
scientific name: 
Grus grus
notes: 

Yellow ring with a black four alpha-numeric code, starting letter "F" : 
Fxxq and Fqxx, where x is either letter or number and q is a letter (for checking) (on left tibia and metal ring (on right tarsus).

note 1 :

email sighting submit: 
colour-ring type: 
Legring : one, coded.
colour-ring colour (of the c-ring): 
Yellow [Y]
colour-ring code (of the c-ring): 
Four alpha-numeric code (4 letters/numbers).
colour-ring position (of the c-ring): 
Tibia left.
countries where ringed: 
Finland.
First letter/number (of the c-ring): 
F