Watch Countryfile Season 33 Episode 50 Online

The Stour estuary in Essex has just been added to Suffolk Coast Area of Outstanding Natural Beauty - the first extension of an AONB for thirty years. At this time of year, birds flock here in their thousands to over-winter, but Matt Baker and Margherita Taylor are on a quest to find the area's unsung heroes that don’t get the recognition they deserve: bugs, beetles, crabs and worms. Adam Henson welcomes early lambs to his farm in the Cotswolds, and Tom Heap investigates a tale of two rural high streets in lockdown .