On 04/24/2010 10:56 AM, Mauro Lacy wrote:
> Rick Monteverde wrote:
>> Maybe they just don't like the sun in their face?
>>   
> They surely thought about this. From the abstract:
> "Because wind and light conditions could be excluded as a common
> denominator determining the body axis orientation, magnetic alignment is
> the most parsimonious explanation."
> 
> In other words, if what you say were the cause, they should head south
> in the southern hemisphere.

And they'd face east in the afternoon and west in the morning.  One
would expect that they checked for that.


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