Blue ring (on either leg) and metal ring (on other leg).
note 1 : blue ring (on right leg) and a metal ring (on left leg) on tarsus. [East of Danube, Hungary].
note 2 : blue ring (on left leg) and a metal ring (on right leg) on tarsus. [West of Danube, Hungary].
Yellow ring with black 2 numeric code.
note 1: used code is number 14.
Orange ring with black code.
note 1 : details of code are not provided.
Blue ring with white two numeric code.
note 1 : in Hungary, every year birds are ringed from 2004 onwards.
note 2 : aluminium ring on the other leg.
note 3 : 270 fledglings and 2 juveniles were marked between 2004 and 2008.
White ring without a code.
note 1 : in Hungary, only in 2003 birds are ringed.
note 3 : 30 fledglings were marked.
Yellow ring with a black two alpha-numeric code.
note 1 : in Hungary, only in 2002 birds are ringed.
note 2 : used codes are : A0-A9, B0-B9, C0-C9 and aluminium ring on the other leg.
note 3 : 24 fledglings and 1 second-year bird were marked.
Dark-green ring with a white two alpha-numeric code.
note 1 : used codes are : A0-A9, B0-B9, C0-C9, K0-K7. note 2 : already printed out and soon to be used : K8-K9, D0-D9, F0-F9, L0-L9, N0-N9.