Eurasian Curlew
scientific name: 
Numenius arquata

Combination of :
* white flag with black three alpha-numeric code (H00 till H99 OR X00 till X99) (on left or right tibia).
* uncoded yellow ring (on left or right tibia).

note 1 :

email sighting submit: 
colour-ring type: 
Flag : combination of coded flag and legring(s).
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: 
The Netherlands.