Chris Packham, Michaela Strachan and Ellie Harrison reflect 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 Burkeexplains how she has been helping with a survey of one of Cornwall's much-loved mammals, the grey seal.