Includes 2,817 recordings of 819 species on over 19 hours \r\nof running time. Can be used on your CD-Player, computer CD drive, or MP3 \r\nplayer. The enclosed booklet includes indices in English, \r\nFrench, and German, and a printable digital PDF file on the \r\nCDs lists further details. \r\n
Species are listed systematically according to taxonomic standards and can thus be easily compared. As a practical advantage, songs and calls of one species are arranged consecutively, but on separate tracks, so they can be chosen independently. The PDF booklets provide English, French and German explanations about the sound recordingsl Using a PC or MP3 player, these details display on the screen while playing.\r\n2 CDs.