assessing cloud cover and wind

[Mark Walker]

Oh, and regarding wind:  I've found this to hinder my ability to catch
butterflies more than it hinders their ability to fly.  It does tend to
inhibit nectaring, and so the butterflies are more likely to fly rapidly,
with or against the wind, looking for a calmer location for stopping.
Interestingly, I have seen butterflies flying effectively against even very
strong winds.  Don't know if anyone has studied the aerodynamics involved,
but there must be something about the weight, wing shape, and dynamics of
wing motion that facilitate this.

Mark Walker
Mission Viejo, CA  USA

> -----Original Message-----
> From:	C. Brdar [SMTP:cbrdar at gpu.srv.ualberta.ca]
> Sent:	Tuesday, March 09, 1999 5:17 PM
> To:	Mark Walker
> Cc:	'LEPS-L'
> Subject:	assessing cloud cover and wind
> 
> 
> Hello all,
> 
> I was wondering if anyone knows of any methods used to assess wind and
> cloud
> cover at a scale that is meaningful for butterflies.  I'm doing research,
> and it involves observing butterfly behaviour, and I need to evaluate
> these
> things since they have such marked affects on their behaviour.
> 
> Thanks for your help,
> 
> Corina Brdar