Red ring with a white four alpha-numeric code (A200) ( on left leg) and metal ring (on right leg).
note 1 :
Yellow neckband with a black four alpha-numeric code.
note 1 : used codes are 4T00-4T50
note 2 : birds have been banded at a breeding site in Saxony-Anhalt near Merseburg.
note 3 :
White ring with a black three alpha code.
White ring with a black three alphanumeric code.
White neckband with a black 4 alpha-numeric code : number/number/number/ letter 'X'.
White rings with a black two alpha code.
Blue neckband with a white four alpha-numeric code : number/letter 'P'/number/number).
Red neckband with a white three alpha-numeric code, starting letter 'B' followed by two numbers.
Red ring with a white three alpha-numeric code, starting letter 'B' followed by two numbers.
Orange ring with a black three alpha code.
note 1 : birds ringed at the WWT-centres and on the breeding grounds in Iceland.
note 2 : females are ringed on left leg and males on right leg.