Sligo's slippery slope to ringing

Mícheál Casey writes:

I started getting into ringing from reading the metal rings on gulls, particularly Common and Black-headed Gulls. Back in 2004, I read the ring of a handsome Common Gull, and was thrilled to hear back from Hugh Insley about where and when it was ringed. It was a chick (one of a brood of three) which was ringed on 26 May 1997 at Loch Tarff, near Fort Augustus, Highland,