Countryfile - 31/08/2008

John Craven heads to Warwickshire, where this year's harvest is in full swing, to meet a farmer who's passionate about filming barn owls. Miriam O'Reilly asks whether the UK should be more self-sufficient in food production, and Juliet Morris visits the world's oldest model village which provides a microcosm of 1930s England. Plus, how to identify the jellyfish being washed up on British beaches.