It is the end of the second week of Springwatch and the team looks back at another hectic week on the Sherborne Park Estate, with Chris and Michaela joined by guests Iolo Williams and Lucy Cooke. Gillian Burke investigates Oddball, a piece of mining machinery that was once the largest machine in the world - but since being mothballed has been colonized by all kinds of birds to become what could be the largest bird box in the world.

Chris Packham and Michaela Strachan are live again from the Gloucestershire countryside with badgers, blue tits and the Sherborne River camera. Patrick Aryee and Lucy Cooke are staking out the long-eared bat roost, and Gillian Burke is in Cornwall investigating the return of two cliff-top specialists - the chough and the peregrine.