Red legring with a white three alpha code (on tarsus left) and metal ring (on tarsus right).
note 1 : to be read from bottom till top.
note 2 : project started in 2024.
note 3 :
Orange ring with a black three numeric code (700 - 799) (on left leg) and metal ring (on right leg).
note 1 : birds ringed in Cork, Ireland.
note 2 :
Dark-blue ring with a white thre numeric code (700 - 799) (on left leg) and metal ring (on right leg).
Yellow flag with a black three alpha-numeric code.
note 1 : used codes are A00-A99.
note 2 : birds ringed at the lake Constance.
White flag with a black four alpha-numeric code.
note 1 :
Yellow ring with a black three alpha-numeric code.
Yellow flag with a black three numeric code.
note 1 : used codes 300-399.
note 2 : Common Terns, ringed as juveniles in the south of Luxembourg and the nearby border region in Germany.
Red ring with a white three numeric code (800 - 999) (on left tarsus).
note 1 : birds ringed in Rutland, UK.
Black ring with a white four alpha-numeric code, starting letter "J".
Red ring with a white three alpha-numeric code, starting letter "A". (A00-A99).