Goosander

Dark-green ring with a white two alpha code.

note 1 : project starts in 2026.

note 2 : 

White ring with a blach two alpha code (on left leg) and metal ring (on right leg).

note 1 : a binary check marks is above the letters.

note 2 :

Combination of c-rings.

note 1 : yellow ring over metal ring (on left tarsus) and 2 c-rings (on right tarsus).

note 2 :

Yellow ring with a black two alpha code (on one leg) and metal ring (on other leg).

note 1 : used codes are : AB, BA, CA, EH, KA, LA ...

note 2 : from 2022 onwards: new rings with binary check marks above letters. 

note 3 : please report also pictures with not full code.

note 4 :

Combination of two c-rings (on left leg) and metal ring (on right leg).

note 1 : birds ringed in Aberdeen, Scotland.

note 2 :