Finland.

Dark-green ring with a white two alpha code.

note 1 : project starts in 2026.

note 2 : 

White ring with a black two alpha code.

note 1 :

Blue ring with a white three alpha-numeric code (letter/letter/number) (on left tarsus) and metal ring (on right tarsus). 

note 1 : project starts in 2025.

note 2 :  

Combination of :
* lime c-ring (on left tarsus).
* code blue flag (on right tibia).
* metal ring (on right tarsus).

note 1 : used code of flag are : two numeric OR two alpha OR two alpha-numeric.

note 2 : used letters are : A,C, F, H, J, K, L, M, N, P, T, U, V, X, Y and numbers 0-9.

note 3 :

Combination of :
* One c-ring over metal ring (on left tarsus)
* 2 c-rings (on right tarsus).

note 1 : used colours are : red, blue, white, yellow and green.

note 2 :

Yellow ring with a black three alpha code, starting letter "C".

note 1 :

White ring with a black three alpha-numeric code, starting letter "C" (on left tarsus).

note 1 : used codes are : letter "C" and two numbers ; letter "C" and letter/number ; letter "C" and number/letter.

note 2 :

White ring with a black three alpha code, starting letter "C" (on left tarsus).

note 1 :

Dark-blue ring with a white three alpha-numeric code, starting letter "C" followed by two numbers (on left tarsus).

note 1 :

White ring with a black three alpha-numeric code.

note 1 : used codes : letter/number/number. used codes : K00-K99 and S00-S99.

note 2 :