Love it or hate it, shooting contributes around £2 billion to the rural economy. But it's a sporting industry under the cosh, as the UK is gripped by the worst ever outbreak of avian flu. Can game bird shoots survive the 21st century? Charlotte explores the 12,500-acre Rhug Estate in north Wales to see what it means to be a traditional shooting estate in the modern world and looks at how it contributes to local business.Sean is in Perthshire on the 1,300-acre Bamff Estate, which has eschewed shooting for eco-tourism, including a colony of beavers. Tom is in Wiltshire to investigate the threat posed by avian flu to the industry, and in the Cotswolds, Adam puts his new sheepdog Gwen through her paces. Will she pass muster?