Julie
Good question. A recent thread here commented on cuckoos with unusual mouth
marking which suggested it gave young cuckoos a favourable feeding
advantage. Maybe this overrides the password. Another part of the ongoing
evolutionary jigsaw.
Cheers
Chris Gregory
On 9 December 2012 15:52, Julie Neumann <> wrote:
> I read an abbreviated version of this report from a recent news clipping.
> It made me wonder. If this is true how could a cuckoo survive to be raised
> by a Fairy-wren?
>
> On 15/11/2012, at 12:14 PM, Paul wrote:
>
> Interesting article about Superb Fairy-Wrens teaching their young a
> ‘password’ while they’re still in the egg.
>
> www.abc.net.au/science/**articles/2012/11/09/3629195.**htm<http://www.abc.net.au/science/articles/2012/11/09/3629195.htm>
>
> Paul Osborn
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> Julie Neumann
> Blue Mountains NSW
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