"Its one of the most breath-taking experiences I've witnessed" says Kathy Hinde as she recalls watching thousands of Knot being forced by the incoming tide into the air above the mudflats at Snettisham In Norfolk. Here she shares that experience with us. Tweet of the Day has captivated the Radio 4 audience with its daily 90 seconds of birdsong. But what of the listener to this avian chorus? In this new series of Tweet of the Day, we bring to the airwaves the conversational voices of those who listen to and are inspired by birds. Building on the previous series, a more informal approach to learning alongside a renewed emphasis on encounter with nature and reflection in our relationship with the natural world. Producer: Sarah Blunt Photograph: Ian Redman.