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Steve Backshall presents the story and sound of the herring gull. (R)
BBC Radio 4
Why does this speech disorder cause so much shame amongst the millions affected by it? (R)
BBC World Service
Jill Misson celebrates the county's great outdoors.
Paul Hudson meets Prince Charles' Climate Change co-author Emily Shuckburgh.
BBC Radio Leeds
Astronomers have detected a record seven Earth-sized planets orbiting a single star (R)
Science unwrapped - interactive science, medicine and technology.
BBC Radio Cambridgeshire
Can natural flood management protect Yorkshire from floods? Plus petrol power from plants. (R)
BBC Radio York
Laurie Taylor explores platform capitalism - its origins, meaning and future. (R)
Star cricketers from New Zealand and the West Indies discuss the women's game.
Understanding the truth about food shortages and how they are reported. (R)