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hi, just started breeding 2 years ago,and at the moment ive got a chick,whos half green half blue,split right down the middle vertically!!
ive never seen this before,so started looking on the web tonight about it..seems its a recognised thing,but extremely rare..

anything i should do or just normal??
 

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Actually, it's not genetic. I think they call it a congenital mutation.. But it's not harmful. Just take care of it like you would a normal budgie.. and take pictures!:p
 

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If i recall rightly, its a result of two sperm fertilising an egg and not seperating properly into twins. Its undetectable in birds where all chicks are green or blue or what not as you cant tell the other side is different, but it is easily evident in a green/blue halfsider. I have also seen a blue/grey half sider and the grey side was also feather duster! Makes you wonder how a bird can be half feather duster eh? That same bird has gone on to father 5 chicks that i know of, none of which are half siders or feather dusters.

Keep this lovely gem :) I havent heard of any health problems that come from being half sider, but they are wonderfully gorgeous! Keep us updated with pics!
 

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Yes, nothing to worry about. Can we see more pictures, maybe some from the front?
:)
Sigrid
 

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thats wonderful!
i wish i had one
hope to see more pics;)
 

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Wow he's beautiful! I'd love to see more pics.
 

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Hi Ron. Guthwulf is absolutely right about how a half sider is formed.
Having two different sets of genetic material almost sounds like science fiction.
I've only seen one before that actually looked like he was one half of two different birds entirely. Beautiful and mysterious looking.

Can you let us see more pictures of him?
 
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