birding-aus

re: Norfolk Island birdlist

To: "Chris Sanderson" <>
Subject: re: Norfolk Island birdlist
From: "Lawrie Conole" <>
Date: Thu, 7 Feb 2008 12:07:49 +1100
Hi Chris

The subspecies I mentioned only occur on NI and LHI, so therefore they're
gone altogether.

Cheers


On 07/02/2008, Chris Sanderson <> wrote:
>
> Hi Lawrie,
>
> Is that extinct, or extinct in Australia?
>
> Regards,
> Chris
>
> On Feb 7, 2008 9:00 AM, Lawrie Conole <> wrote:
>
> > Regarding the Island Thrush (Turdus poliocephalus) in our region -
> > speaking
> > both politically and biogeographically, Schodde & Mason (1998) have the
> > following:
> >
> > Norfolk Island - T. poliocephalus poliocephalus - apparently the
> > nominate
> > form - regarded as Extinct
> > Lord Howe Island - T. poliocephalus vinitinctus (common name
> > Vinous-tinted
> > Thrush) - regarded as Extinct
> > Christmas Island (Indian Ocean) - T. poliocephalus erythropleurus -
> > regarded
> > as 'Lower Risk - near threatened'
> >
> > Given that this bird is splattered near and far across oceanic and
> > contintental islands in the Indian and Pacific Oceans, and varies
> > spectacularly in appearance throughout, it doesn't seem very likely that
> > an
> > exact replacement for the bird could be found for re-introduction to
> > Lord
> > Howe.  The form in New Caledonia was probably the closest useful source,
> > but
> > it is probably extinct as well.  Maybe a candidate from the Solomons
> > might
> > work - let it settle in and evolve into whatever kind of Island Thrush
> > Lord
> > Howe can generate.  Many Island Thrush populations look for all the
> > world
> > like Eurasian Blackbirds - the end result might be aesthetically
> > disappointing, even if ecologically functional.
> >
> > L.
> >
>
>


-- 
++++++++++++
Lawrie Conole
28 Reid Street
Northcote, VIC 3070
AUSTRALIA
lconole[at]gmail.com
0419 588 993
===============================
www.birding-aus.org
birding-aus.blogspot.com

To unsubscribe from this mailing list, 
send the message:
unsubscribe 
(in the body of the message, with 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