Sulphur-crested Cockatoos Colouration

A good point...there has definently been a lot more wineries popping up nation wide in the last couple of years.
 

Peter
 

John Gamblin <>

28/10/2003 12:46 PM

To	Jack Shapiro <>
cc
Subject	Re: [BIRDING-AUS] Sulphur-crested Cockatoos Colouration

Diet change ....

---  wrote:
> Hi All, 
> 
> Here's a list of replies i got to my initial posting...i'm still 
> unconvinced about this colouration:
> 
> Sender                  
                  Sighting
Location  
> Suggested 
> Cause 
> 
> Peter Fuller(myself)              
            Fyansford, Geelong,
> VIC     
>                    
            Wanted to stand out in a crowd
> Jill Dark                
                     
         
> Cairns/Atherton 
> Tablelands,QLD                
              Feeding on Red Soil 
> Philip Veerman                
                  No sighting
    
> Wood 
> pulp from nest excavating ( educated guess)
> John Reidy                
                     
    Leeton, NSW     
>      
>   Bathing in puddle of very muddy red water (visibly muddy)
> Duncan Fraser                
                   Gippsland,
VIC      
>  
> ?????????????????? 
> Annabel Ashworth/Hoskins            Tamworth,
NSW             
> Molasses 
> from farmers feed supplement blocks turning feathers pink.
> Alan Gillanders                
         Atherton Tablelands, QLD    
>    
> Staining from red, tropical soils.
> Jack Shapiro                
             Mosman, NSW
> 
> 
> Heres some images of the bird i saw down at Fyansford:
> 
> http://www.boogey.org/~peter/SCC/PinkSCC.html
> 
> Please let me know if you have troubles accessing this link.
> 
> Cheers, 
> 
> Peter
> 
>  
> 
> 
> 
> 
> 
> On Thursday  ( 23/10/03) while walking at Balmoral Beach (Mosman,
> NSW), I 
> observed a group of 4 Sulphur-crested Cockatoos feeding on grass
> roots on 
> the lawn.  One of them was had a light brown colouration to most
of
> it 
> feathers except the head.  In bright sunlight it looked brown,
but
> perhaps 
> under lesser bright conditions it may be viewed as "pinkish".
 The
> bird 
> itself looked exactly like the other cockatoos in its features, not
> like a 
> hybrid.  I have seen hybrid of Sulphur-crested Cockatoos and
Galahs,
> and 
> this was not one of them. The bird didn¹t look dirty, but at the
> interface 
> between the coloured and white regions of the plumage , the
> colouration 
> didn¹t look natural.  This may well be an example of what Peter
> Fuller 
> suggested a phenomenon related to nesting. 
> 
> Recently there has been correspondence on this type of observation
in
> 
> birding Aus, with Peter Fuller initiating the subject (Peter Fuller
;
> 
> [BIRDING-AUS] Sulphur-crested Cockatoos colouration- 27, 28,29 August
> 
> 2003).
> 
> What is curious is that such colouration has only been reported this
> year, 
> and on other  different individuals of this species, at very
diverse 
> locations.  Could the dry weather this year be responsible in
so
> indirect 
> way ?
> 
> Jack Shapiro
> 
> 
> 
> 


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