Crows

species:

Rook

scientific name:

Corvus frugilegus

notes:

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

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

note 2 :

email sighting submit:

colour-ring type:

Wingtag : coded.

colour-ring colour (of the c-ring):

White [W]

colour-ring code (of the c-ring):

Two alpha code (2 letters).

countries where ringed:

Hungary.