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Superb Fairywrens teach unhatched broods secret song to thwart cuckoos
16 Nov 2012, 9:49 PM,
#1
Superb Fairywrens teach unhatched broods secret song to thwart cuckoos
Try to overlook the bird name mis-spellings

http://blogs.discovermagazine.com/notroc...impostors/
BB
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17 Nov 2012, 6:58 AM,
#2
RE: Superb Fairywrens teach unhatched broods secret song to thwart cuckoos
[Image: Fairy_wren.jpg]

Quote:... mothers sing a special tune to their eggs before they’ve hatched. This “incubation call” contains a special note that acts like a familial password. The embryonic chicks learn it, and when they hatch, they incorporate it into their begging calls. Horsfield’s bronze-cuckoos lay their eggs too late in the breeding cycle for their chicks to pick up the same notes. They can’t learn the password in time, and their identities can be rumbled.

Fascinating stuff!
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19 Nov 2012, 8:50 AM,
#3
RE: Superb Fairywrens teach unhatched broods secret song to thwart cuckoos
It makes me happy just to know that there is a bird called the "Superb Fairywren".
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