In this last Springwatch of 2020, the team reflects on an unprecedented year and nature’s power to help people cope with such challenging times. Wildlife sound recordist Gary Moore searches for a 'lost' dawn chorus on the Knepp Estate in West Sussex, where numbers of rare songbirds like the nightingale are beginning to recover. Gillian Burke explains how she has been helping with a survey of one of Cornwall’s much-loved mammals, the grey seal.