Hi David
There will be a paper published by R Ahmed on the identification and status of
the three cattle egret taxa in the next Dutch Birding (33 nr 5; sent to
subscribers within a month).
All the best
Arnoud van den Berg
PS: It may be noteworthy that the Dutch taxonomic committee (CSNA), which
follows PSC and therefore is considered as 'progressive in splitting', did not
give species status to B. i. coromandus, as it did not share the views on
supposed diagnostic features presented in 'the Ripley guide 1&2 (2005)'.
On 30 Aug 2011, at 10:36, David James wrote:
> From memory I think the first suggestion of a potential split was in McAllan
> & Bruce (late 1980s) checklist of the birds of the state of NSW in Australia,
> which was privately published. My copy is in storage so I can't check right
> now. I think it was based on differences in bare parts colours in breeding
> plumage and a gap in the range in the Middle East, but not a full taxonomic
> study. I think Sibley & Monroe may have followed McAllan & Bruce, as they
> tended to adopt almost any published split. From there it has gradually
> gained support and "legitimacy" but has not been studied rigorously. Many
> splits are based on similar histories of minimal taxonomic assessment. Some
> are probably good, but many are bad decisions and all are poor process. It's
> only really different definitions of species, the two refs I mentioned both
> recognised "allospecies".
>
> Cheers
>
> David James,
> Sydney
>
> ==============================
>
> From: Bharat Jethva <>
> To: ; John Penhallurick
> <>
> Cc: 'Birding-aus' <>
> Sent: Tuesday, 30 August 2011 5:47 PM
> Subject: Re: [OB] Eastern Cattle Egret
>
>
>
> Dear Dr John Penhallurick,
> I agree with you, I also don't think that it could be a separate species ! I
> hope they have done detailed research when they accept it !
>
> Best wishesDr. Bharat Jethva
>
> --- On Tue, 30/8/11, John Penhallurick <> wrote:
>
> From: John Penhallurick <>
> Subject: [OB] Eastern Cattle Egret
> To:
> Cc: "'Birding-aus'" <>
> Date: Tuesday, 30 August, 2011, 12:39 PM
>
>
>
> 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
>
> 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/
>
> [Non-text portions of this message have been removed]
>
> [Non-text portions of this message have been removed]
>
> [Non-text portions of this message have been removed]
>
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