Seems that the songs we like to hear so much have a number of other benefits to humans – although some of our natives and summer visitors might not make the cut (sorry Messrs Channel-billed Cuckoo and Koel). Cheers Tom Wilson
** The surprising uses for birdsong ** Birdsong isn’t just beautiful to listen to, it is increasingly being used in some rather unusual ways. < http://www.bbc.co.uk/news/magazine-22298779 >
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