EURING Code Manual - The European Union for Bird Ringing

Plumage Codealphanumeric, one characterFor extra information to enhance age code. One character from either the numeric or alphabetic lists.For many passerines, this code may remain empty. For waders, the traditional numeric codes can beused.Alphabetic codes for any speciesU Unknown or not recordedA Adult plumage (if no other codes applicable)B Breeding plumage - where species have a distinct breeding plumage.D Downy - for nestlings and nidifugous chicksE Eclipse plumage (ducks)F First winter (typically corresponding to EURING age codes 3 or 5)I Immature (except for first winter plumage)J JuvenileW Winter plumage - where species have a distinct winter plumage.Numeric codes for waders only1 full winter plumage2 trace of summer plumage3 1/ 4 summer plumage4 1/ 2 summer plumage5 3/ 4 summer plumage6 trace of winter plumage7 full summer plumageHind ClawnumericIn millimetres, to a maximum precision of 0.1 mm. For details of method see Svensson (1992).Bill LengthnumericIn millimetres, to a maximum precision of 0.1 mm. Normally, lengths over 100 mm will be given tothe nearest millimetre.If this measurement is recorded, then a code must be given in the next field, Bill method.Bill Methodalphabetic, one characterA single letter code. For details of methods see Svensson (1992). This field is mandatory if the BillLength is given.CFNSfrom tip to Cerefrom tip to Feathersfrom tip to Nostrilfrom tip to SkullEURING exchange-code 2000 Enhanced 28 - 42