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Lionel Kelleway joins Ciaran Nelson at the RSPB Reserve at Snettisham in Norfolk.
BBC Radio 4
Lionel Kelleway watches tens of thousands of rooks gather together to roost for the night.
Lionel Kelleway joins RSPB conservation officer Sarah Dawkins to track migratory waders.
Lionel Kelleway explores the Wash, the largest expanse of mudflats in the UK.