25-08-2006, 01:42 PM
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 | Commander of the Wild Empire | | Join Date: Aug 2006 Location: Letchworth Garden City
Posts: 1,366
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| Re: When do birds learn to sing?
This news item from last year refers to a piece of research which may give you some answers - or at least some theories. http://news.bbc.co.uk/1/hi/sci/tech/4271511.stm |