birding-aus

Reverse migration

To: scouler <>
Subject: Reverse migration
From: Andrew Taylor <>
Date: Thu, 10 Aug 2000 09:35:04 +1000 (EST)
On Thu, 10 Aug 2000, scouler wrote:
> <p>In his email to birding aus&nbsp; on 5 August 2000, Alan Morris referred
> to the sighting of an adult male Northern Pintail in breeding plumage near
> Perth in July, 1985 and said, quoting HANZAB, that it was considered to
> be a case of "accidental reverse migration". Can anyone tell me what "reverse
> migration" is?

The theory is that some bird's navigation is faulty in such a way that
they fly in the opposite direction to that of their target e.g instead of
flying north, they fly south.

Alerstam book "Bird Migration" is a nice ref on migration.  He's doubtful
that "reverse migration" exists as a particular phenomen, rather he
posits a continuous spectrum of faults in bird's navigation.

Andrew Taylor


Birding-Aus is on the Web at
www.shc.melb.catholic.edu.au/home/birding/index.html
To unsubscribe from this mailing list, send the message
"unsubscribe birding-aus" (no quotes, no Subject line)
to 

<Prev in Thread] Current Thread [Next in Thread>
Admin

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