FW: King Parrot with yellow markings

To: "" <>, "" <>, "" <>
Subject: FW: King Parrot with yellow markings
From: Philip Veerman <>
Date: Sat, 23 Jul 2022 12:03:32 +0000
The basic answer it is a colour mutation, in this case a deficiency in the 
production of structural blue. Though in this bird it is randomly patchy and 
that aspect is not very often shown. The normal green is produced by yellow 
pigment combined with structural blue (that means the blue colour produced by 
feather structure, rather than pigment). Where the structural blue is absent 
(in those patches), the bits that should be green only have the yellow pigment 
remaining, to provide the yellow colour. It is basically the same process that 
produces an all yellow, rather than mostly green, budgerigar.


-----Original Message-----
From: Canberrabirds  
On Behalf Of 
Sent: Saturday, 23 July, 2022 9:02 PM
To: ; 
Subject: [Canberrabirds] FW: King Parrot with yellow markings

Hi Barry - I am forwarding your message to COG's chatline and will pass on any 
responses that might help with your question.  Cheers, Julian Robinson

Chatliners - Any more informed thoughts than I can offer would be appreciated.

-----Original Message-----
From: Barry Millar <> 
Sent: Saturday, 23 July 2022 3:57 PM
Subject: King Parrot with yellow markings

This bird is a frequent visitor to our garden in Isabella Plains.  Can someone 
please explain the bright yellow markings that almost form a solid band across 
the wings when fully closed.

Barry Millar


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