re:Spine-tailed Swifts

Subject: re:Spine-tailed Swifts
From: "Ken Rogers"<>
Date: Tue, 17 Feb 1998 08:39:58 +1000
It is received wisdom that these are commonly seen before advancing weather
fronts.  Is this a furphy?  If not, how, when, and why did they get to
where they started from?

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