further to swifts

To:
Subject:	further to swifts
From:	(John Leonard)
Date:	Fri, 30 Oct 1998 08:50:22 +1100 (EST)

Thinking about swifts and their wintering stay in Australia, it occurs to me
that their famous running before a storm front must be connected with their
food-supply. After a storm the flyign insects will either have been forced
to land, or washed out of the air, so it makes sense that the swifts would
want to stay in front of storm-fronts.

It may be that the swifts penetrate to southern Queensland by this time, but
further south the storm-fronts that would push them further south do not
begin to form until later in the year.

John Leonard



^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^

John Leonard (Dr),
PO Box 243,
Woden, ACT 2606,
Australia

"The world is currently experiencing technical problems. 
Please do not adjust your brains."



http://www.spirit.net.au/~jleonard
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^

<Prev in Thread]	Current Thread	[Next in Thread>
further to swifts, John Leonard <=

Previous by Date:	4th Annual NTT World Bird Count - twitchathons, dw6d-alln
Next by Date:	Forbes area RFI, John Leonard
Previous by Thread:	4th Annual NTT World Bird Count - twitchathons, dw6d-alln
Next by Thread:	Forbes area RFI, John Leonard
Indexes:	[Date] [Thread] [Top] [All Lists]

The University of NSW School of Computer and Engineering takes no responsibility for the contents of this archive. It is purely a compilation of material sent by many people to the birding-aus mailing list. It has not been checked for accuracy nor its content verified in any way. If you wish to get material removed from the archive or have other queries about the archive e-mail Andrew Taylor at this address: andrewt@cse.unsw.EDU.AU