Farmer Dai Brute shouts to his sheep dogs from his quad bike as he feeds sheep in one of his fields at Gwndwnwal Farm on April 1, 2013 in Brecon, Wales. Dai Brute runs Gwndwnwal Farm in Llan-Talyllyn, Brecon with his wife Dulcie Brute and son Paul Brute. The recent cold snap has meant that farmers have had to continue feeding their sheep long into the period when they would normally be able to survive on grass the more mild weather.