Countryfile is in Shropshire, where John Craven visits a seed bank working with the Woodland Trust to help save our endangered native trees. He also explores the farm of the brother and sister building on their father's legacy as a pioneering organic farmer. Ellie Harrison meets urban artist and ornithologist Matt Sewell to discover how to draw birds with chirpy characters. She is also on the hunt for the elusive Shropshire pine marten, thought to be extinct in England. And Adam Henson finds out how painting cattle to make them more visible at night could cut down animal deaths on the road. Providing enough food for billions of growing farm animals is no easy task - so could insects be the answer? Tom Heap gets an exclusive look at European trials where they are feeding pigs and chickens with maggots.