G'day John,
I think we are discussing different things here, I have been responding to
the premise of the very recent expansion of Cattle Egret into Australia and
America as evidence that the same must be ongoing/happening within the core
of the Cattle Egret population in Africa and Asia, thus a single mixed
population. I thought you must have been suggesting that Barn Owl was mixing
similarly as a result of recent distribution changes, I apologize.
Just for the record I am currently working on a book for which we have
Cattle Egrets in Australia listed as a subspecies as per C and B and it will
remain that way until further work demonstrates otherwise. This is based on
DNA, but the fact remains that although capable a covering vast distances as
John P discusses in his opening email the two subspecies remain discrete and
identifiable, it's a very intriguing situation.
Cheers Jeff.
-----Original Message-----
From: John Leonard
Sent: Tuesday, 30 August 2011 8:11 PM
To: Jeff Davies; Birding-aus
Subject: Eastern Cattle Egret
I didn't say they had arrived in Australia and the American recently
as a result of the stocking of the land. I implied they had spread
worldwide relatively recently.
John Leonard
On 30 August 2011 18:38, Jeff Davies <> wrote:
> No the same argument can't be applied John,
>
> Barn Owls didn't arrive in Australia and the Americas recently as a result
> of the stocking of the land, they were already there and have established
> plumage differences as well.
>
> Cheers Jeff.
>
>
>
>
>
> -----Original Message-----
> From:
> On Behalf Of John Leonard
> Sent: Tuesday, 30 August 2011 5:28 PM
> To: Birding-aus
> Subject: Re: [Birding-Aus] Eastern Cattle Egret
>
> The same argument could be used against splitting the Barn Owl into
> Eastern and Western.
>
> John Leonard
>
> On 30 August 2011 17:09, John Penhallurick <>
wrote:
>> 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/
>>
>>
>>
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>
>
>
> --
> John Leonard
> Canberra
> Australia
> www.jleonard.net
>
> I want to be with the 9,999 other things.
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--
John Leonard
Canberra
Australia
www.jleonard.net
I want to be with the 9,999 other things.
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