Vanessa at night - migrations

[Paul Cherubini]

Chuck Vaughn wrote:

> It seems to me the way to answer this question is for someone
> to get a pair of night vision googles and use them during a
> V. cardui migration. Certainly you'll be able to see a few
> of them flying by on a clear night, especially in the mid
> spring to early summer when the summer Milky Way is high in
> the sky and providing maximum light.

I agree Chuck. Observers wearing night vision goggles on
warm nights in the southern California and Arizona deserts
(or southern beaches of Cyprus) in spring would provide an 
excellent opportunity to document whether or not cardui migrates 
at night.

Paul Cherubini

 
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