Swans

species: 
Bewick's Swan
scientific name: 
Cygnus columbianus bewickii
notes: 

White neckband + GPS transmitter with a black 3 alpha-numeric code : number / number / letter 'X'.

note 1 :

email sighting submit: 
website information: 
The odyssey of the Bewick Swan, another route to Greece.
colour-ring type: 
Neckband.
colour-ring colour (of the c-ring): 
White [W]
colour-ring code (of the c-ring): 
Three alpha-numeric code (3 letters/numbers).
Last letter (of the c-ring): 
X