Crows

species: 
Jay
scientific name: 
Garrulus glandarius
notes: 

Combination of :
* two numeric rings (on left or right tarsus).
* metal ring (on other tarsus).

note 1 : used colours are : dark-green, orange, black, red, white, yellow.

note 2 :  each ring has a two numeric code.

note 3 : 

website sighting submit: 
Ornithological Station, Museum and Institute of Zoology of the Polish Academy of Sciences,
email sighting submit: 
colour-ring type: 
Legrings : combination of coded.
countries where ringed: 
Poland.