This CD covers most of the songs and calls that may be heard within Britain's gardens and parks. The tracks were recorded by Geoff Sample, who has very kindly allowed them to be used for this CD to help BTO volunteers recognise some of our more common bird species by their vocalisations. Each track is made up of one or more examples of a particular song or call, and is supported by Geoff's wonderful voice-over giving guidance on how to recognise the characteristics of the species in question.