G'day Dave,
I have a single image of a Cattle Egret from the Seychelles and the plumage
is straight out African, one photo isn't definitive evidence however.
Cheers Jeff.
From: David James
Sent: Tuesday, 30 August 2011 6:39 PM
To: Jeff Davies; 'John Penhallurick';
Cc: 'Birding-aus'
Subject: Eastern Cattle Egret
seychellarum is said to be intermediate between ibis and coromandus, though
I can't confirm that personally
David James,
Sydney
==============================
From: Jeff Davies <>
To: 'John Penhallurick' <>;
Cc: 'Birding-aus' <>
Sent: Tuesday, 30 August 2011 6:30 PM
Subject: Eastern Cattle Egret
G'day John,
If you have a look at photos of both taxon in breeding plumage you will see
substantial difference in extent of coloured feathering to the head. They
appear to have been separated for a long time and continue to be. It's and
African Asian divide which has persisted despite the invasion east into
Australia and west to the Americas. If they are invading each other as you
suggest then I would expect the plumage differences to not be sustained and
intermediates to be obvious which they are not.
Cheers Jeff.
-----Original Message-----
From:
On Behalf Of John
Penhallurick
Sent: Tuesday, 30 August 2011 5:09 PM
To:
Cc: 'Birding-aus'
Subject: Eastern Cattle Egret
Hi friends,
I have been surprised to see that some authorities, including
worldbirdnames, have accepted the split of the Eastern Cattle Egret from the
taxon found in the rest of the world. Given the way that Cattle Egrets have
spread so widely around the world in such a relatively short time, I find it
hard to believe that gene flow could have been interrupted long enoguh for a
new species to emerge.
I would welcome any thoughts.
Dr John Penhallurick
86 Bingley Cres
Fraser A.C.T. 2615
Australia
email:
Phone: Home (612) 62585428
Mobile:0408585426
sunt lacrimae rerum et mentem mortalia tangunt Aeneid Book 1,line 462 "The
world is a world of tears, and the burdens of mortality touch the heart."
Magna est veritas et praevilabit Vulgate, Book of Edras
Si vis pacem para bellum Publius Flavius Vegetius Renatus
<http://en.wikipedia.org/wiki/Publius_Flavius_Vegetius_Renatus> 's De Re
<http://en.wikipedia.org/wiki/De_Re_Militari> Militari, book 3
Please visit my website:http://www.worldbirdinfo.net
<http://www.worldbirdinfo.net/>
Please also visit my blog at
http://jpenhall.wordpress.com/2011/04/02/proof-that-there-is-not-a-scrap-of-
evidence-in-favour-of-the-ipccs-attack-on-carbon-dioxide/
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