Rethink of birds' internal compass

Subject: Rethink of birds' internal compass
From: Andrew Taylor <>
Date: Thu, 13 May 2004 20:05:05 +1000
On Thu, May 13, 2004 at 07:09:04PM +1000, Stephen Selden wrote:
> MIGRATING birds may get their internal compass through a chemical reaction
> induced by the Earth's magnetic compass rather than through magnetic
> material in their beaks as the conventional theory holds.

I didn't know about magneto-receptors in birds beaks, but a quick google
turned up.

Ultrastructural Analysis of a Putative Magnetoreceptor in the Beak of
Homing Pigeons, Fleissner et al.

More than I wanted to know, but the bits I have (can) read are interesting.

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