Re: How birds migrate

[Phillip Bigelow <bigelowp@juno.com>]

On Sat, 12 Aug 2006 19:40:20 -0500 Dora Smith <villandra@austin.rr.com>
writes:

> > http://www.vtnews.vt.edu/story.php?relyear=2006&itemno=420 
> It says research has found that birds use some complicated system of 
> 
> calibrating certain bands of light present at sunrise and sunset 
> with their 
> inborn magnetic compass system or whatever.   It does not say how 
> research 
> established that.



Methods are described in the primary source:  the Aug. 11, 2006 issue of
the journal _Science_.


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