Swans
species:
Mute Swan
scientific name:
Cygnus olor
notes:
Yellow neckband with a black four numeric code, starting number "4".
note 1 : used codes 4000-4999.
note 2 :
email sighting submit:
colour-ring type:
Neckband.
colour-ring colour (of the c-ring):
Yellow [Y]
colour-ring code (of the c-ring):
Four numeric code (4 numbers).
countries where ringed:
Hungary.
First letter/number (of the c-ring):
4
