Trefi Gwyllt Iolo S01E05 - Episode 5

This time, Iolo discovers rats in Llanelli and catches mice in Bala. In Merthyr Tydfil, a grey wagtail has built a nest in a cage above the Taff. In Carmarthen and Llandudno, gulls are taking advantage of life on the street. And in Gorseinon and Dolgellau, beautiful and rare birds visit gardens.