Sulphur-crested Cockatoos colouration

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Subject:	Sulphur-crested Cockatoos colouration
From:	"Philip A. Veerman" <>
Date:	Thu, 28 Aug 2003 18:38:20 +1000

I would suggest that the pinkish colouration on some Sulphur-crested Cockatoos signifies staining from wood pulp from eucalypt wood, obtained whilst scratching around or excavating a nest hollow.

Philip

-----Original Message-----
From: <>
To: <>
Date: Wednesday, 27 August 2003 17:47
Subject: [BIRDING-AUS] Sulfur Crested Cockatoo Colouration

Is anyone able to tell me what the pinkish colouration on some Sulfur Crested Cockatoos signify's?
The cockatoo i noticed it on today, was attending a nest site which leads me to think that its breeding plumage??? The pink colouration extended all over its body and head, and its faint yellow ear patch was much more defined than usual, almost as bright as its crest.
Are these markings based on sex, age, or part of breeding pluamge?
Peter

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