For ornithologist and wildlife researcher for BBC's Springwatch, Jack Baddams, March is 'siskin season'. As a licenced bird ringer, he puts ID rings on wild birds so we can learn more about their lives. One of Jack's favourite bird encounters while ringing was during a bird ringing demonstration for the public. The crowd was fascinated by a female siskin with its delicate citrus green and yellow plumage, but then she became even more amazing when they discovered she was already wearing a ring of Swedish origin.

Produced by Sophie Anton for BBC Audio in Bristol.

This programme features audio from Xeno-Canto recorded by Simon Elliott (Eurasian Siskin - XC594919).