[OB] Eastern Cattle Egret

["Jeff Davies" <>]

G'day Bharat,

Whether or not they are species or subspecies is in itself a separate 
discussion to whether there are two discrete identifiable populations or a 
single mixed up one which was the starting point established by John. Whether 
ssp or species they remain discrete and have done so long enough to present 
with plumage differences which don't appear to cline so they can't be freely 
intermixing between Africa and Asia. Establishing in America and Australia is 
clear evidence the two populations are capable of traversing such distances but 
the two plumage types are sustained so they aren't freely mixing across the 
Middle East for what ever reason.

Cheers Jeff.

  

-----Original Message-----
From:  
 On Behalf Of Bharat Jethva
Sent: Tuesday, 30 August 2011 5:48 PM
To: ; John Penhallurick
Cc: 'Birding-aus'
Subject: Re: [Birding-Aus] [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]





    
     

    
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