Iolo Tudur Williams is a Welsh ornithologist, nature observer, television presenter and author, best known for his BBC and S4C nature programmes, working in both English and his first language of Welsh. After a 14-year career with the RSPB, in 1999 Williams became a full-time TV presenter. He has written a number of books about the natural world.

Builth Wells is a market town and community in the county of Powys and historic county of Brecknockshire (Breconshire), mid Wales, lying at the confluence of rivers Wye and Irfon, in the Welsh part of the Wye Valley. In 2011 it had a population of 2,568.