Pied Avocet

Combination of :
* yellow ring with a two alpha-numeric code (on right tibia).
* red ring (on left tibia).
* metal ring (on right tarsus).

note 1 : used letters and numbers for alpha-numeric code: A, C, E, H, J, K, L, M, N, P, T, U, V, X, Y and 0-9.

note 2 :

Combination of :
* black ring with a single numeric code (on left tibia).
* c-ring (on left tibia).
* c-ring (on right tibia).
* metal ring (on left tarsus).

note 1 : used numbers for numeric code : 0-9

note 2 : used colours are : white, yellow, black, dark-green, orange, dark-blue.

note 3 :

Combination of :
* red ring with a one alpha-numeric code (on left tibia).
* white ring with a one alpha-numeric code (on right tibia).
* one c-ring (uncoded) (on right tibia).
* metal ring (on left tarsus).

note 1: used letters and numbers for alpha-numeric code : A, C, E, H, J, L, N, P, S, T, U, X, Y, 0, 2, 3, 4, 5, 6, 7, 8, 9 

note 2 : used colours on uncoded c-ring : dark-green, red, black, yellow.

note 3 :

Combination of :
* dark blue ring with a three numeric code (on left tibia).
* red ring (on right tibia).
* metal ring (on right tibia).note 1 : used numbers : 000-500.

note 2 :

Combination of :
* red c-ring with a two numeric code (on right tibia).
* dark-blue c-ring (on right tibia above coded ring).
* metal ring (on left tibia).

note 1 : used numbers are : 00-99.

note 2 :

Combination of :
* dark-blue ring (on left tibia).
* metal ring (on left tarsus).
* red ring with a white two numeric code (on right tibia).

note 1 : used numbers : 00-99.

note 2 :

Combination of :
* white ring with one alpha/numeric.
* blue ring with one alpha/numeric.

note 1 : colours used for colour rings are : white, dark blue.

note 2 : used letters and numbers for alpha-numeric code: A, C, E, H, J, L, N, P, S, T, U, X, Y, 0, 2, 3, 4, 5, 6, 7, 8, 9.

note 3 :

Combination of :
* a coded flag (yellow or blue).
* an uncoded ring (yellow).

note 1 : several ringers participated on the project : for details and direct contact with the ringer, see attachement below. 

note 2 : from 2023, a plain yellow ring is also fitted directly underneath the flag.

note 3 :

Combination of :
*orange ring with a two alpha-numeric code (on right tibia).
*orange ring (on left tibia).
*metal ring (on left tarsus).

note 1 : used letters and numbers for alpha-numeric code: A, C, E, H, J, K, L, M, N, P, T, U, V, X, Y, 0-9.

note 2 : 

Combination of :
* dark-green ring (on left tibia).
* yellow ring with a black three alpha code (on right tibia).
* metal ring (on right tarsus).

note 1 : used letters and numbers are: A, C, E, H, J, K, L, N, P, T, U, V.

note 2 :