Rook

White wingtag with a black two alpha-numeric code (on each wing) (number-letter, letter-number).

note 1 : most birds also have dark green coded legring (https://cr-birding.org/node/1448 or https://cr-birding.org/node/6917).

note 2 :

White wingtag with a black two alpha code (on each wing) (letter-letter).

note 1 : most birds also have dark green coded legring (https://cr-birding.org/node/1448 or https://cr-birding.org/node/6917).

note 2 :

White wingtag with a black two numeric code (on each wing) : (number-number).

note 1 : most birds also have dark green three alpha-numeric code legring (https://cr-birding.org/node/1448).

note 2 :

Yellow ring with a black four alpha code, starting letter "N".

note 1 : project starts in 2024.

note 2 :

Yellow ring with a black four alpha-numeric code, starting letter "E".

note 1 : used codes are : letter "E" (as a project-letter) followed by three numbers.

note 2 : a dot "." can be between the letter/numbers e.g. E00.8 / E0.03 / E.038.

note 3 :

Yellow ring with a black three numeric code (on left tarsus) and metal ring (on right tarsus).

note 1 : starting code 002.

note 2 : birds ringed in the canton de Vaud, CH.

note 3 :

Yellow ring with a black four alpha-numeric code, starting letter "L".

note 1 :

Yellow ring with a four alpha code, starting letter "W".

note 1 :

Red ring with a white 4 alpha-numeric code (on left tarsus) and metal ring (on right tarsus).

note 1 : used codes are : P+number+number+number.

note 2 : birds ringed in Cork, Ireland.

note 3 :

Yellow ring with a four alpha-numeric code, starting letter "U" followed by a three numeric code or from 2023 onwards : yellow U + letter + 2 numbers.

note 1 : used codes are U100- U999.

note 2 : used codes are UA00 ...

note 3 :