Swans

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

White neckband with a black 4 alpha-numeric code : number/number/number/ letter "T".

note 1 : by mid-December 2010 some 10 Bewicks were caught of which 4 have been ringed with an in-build GPS. The idea is to follow up which migration-route are taken in function of the off-shore wind energy parks.  Used codes are 001T till 010T.

note 2 : used letters are : A B C D E F G H J K L N P R S T U V X Y Z.

email sighting submit: 
colour-ring type: 
Neckband.
colour-ring colour (of the c-ring): 
White [W]
colour-ring code (of the c-ring): 
Four alpha-numeric code (4 letters/numbers).
countries where ringed: 
United Kingdom.
Last letter (of the c-ring): 
T