Hi I saw this advert on Petlink today, I don't think it's a mutation sounds more like a red head with a lot of black mottling on the head.
http://www.petlink.com.au/Classifieds/sale/1814717
I HAVE A RARE MALE GOULDIAN, THAT I AM TOLD BY ONE OF THE PROFESSORS OF THE AUSTRALIAN FINCH SOCIETY THAT HE HAS NEVER HEARD OF. HE HAS 2 SYMETRICAL RED CHEEKS WITH A BLACK HEAD, I WAS TOLD THAT THIS ONLY EVER HAPPENS IN FEMALES. AS I ONLY WANT TO BREED NORMAL GOULDIANS HE IS UP FOR SALE, I DONT KNOW WHAT HE IS WORTH, BUT AM TOLD IF BRED WITH A BLACK HEADED FEMALE, MAY CAUSE THE SAME MUTATION TO THE OFFSPRING
RARE MUTATION MALE GOULDIAN
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Simba
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- Location: Gold Coast, Australia
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Breeder of Gouldian Finches
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Simba
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- Location: Gold Coast, Australia
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Me tooMisso wrote:I saw this too the other day, neally sent an email requesting a photo.
I don't want to buy it just being nosey.
Breeder of Gouldian Finches
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KENTUCKY
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Hello Group,
I have been breeding Gouldians since 1973 and only once did a Cockbird made an appearance with dual Headcolours in my collection, it was a Blackhead with a red scull, it never bred , lived to the ripe old age of eleven years, and moulted out year after year after year the same. I cant say that this bird was infertile I have no proof of that but, here is what has occured for the bird to turn out the way it did. His father was a Red/Black Cockbird, the youngster in Question should have been a pure Blackhead, there was a mechanical malfunction in the system which I dont fully understand, the Gene that produces the Protein for Red, (Axantanten) was not fully switched off, hence the dual Headcolours.This current cockbird should also be treated like a normal Redhead although more Blackhead than Redhead, The Gene for Blackheadedness can not carry a gene for Redheadedness. Red dominates Black, hence this Bird being a Redhead. It certainly is a rarity and when these Speciemens pass on eventually, have it preserved, its well worth doing, taking Pictures of this Phenomena is a distinct must.
Dual Headcolours are not uncommon in Hens and when it does appear its for the same reason as in Cockbirds.
There is another Cockbird shown under the heading YELLOW BACKS, TAKE TWO, this time it is a red head with a yellow scull cap, in this case the Gene that produces the colour for yellow (Lutin) was not intirely switched off either, hence the large yellow patch on top of his head, this Bird is genetcially a Redhead for two Reasons, first it shows a Red tipped beak and not a yellow tip but, more importantly, a reccesive Factor can not carry a dominant factor, but a dominant Factor can carry a reccesive Factor. Confused????? Genetics is not the easiest of Subjects to grasp, but when the Penny drops everything lights up like a Chistmastree. I hope it all makes sense. To the Owners of these Birds, enjoy them, they are very rare indeed. Best Wishes Ralph
I have been breeding Gouldians since 1973 and only once did a Cockbird made an appearance with dual Headcolours in my collection, it was a Blackhead with a red scull, it never bred , lived to the ripe old age of eleven years, and moulted out year after year after year the same. I cant say that this bird was infertile I have no proof of that but, here is what has occured for the bird to turn out the way it did. His father was a Red/Black Cockbird, the youngster in Question should have been a pure Blackhead, there was a mechanical malfunction in the system which I dont fully understand, the Gene that produces the Protein for Red, (Axantanten) was not fully switched off, hence the dual Headcolours.This current cockbird should also be treated like a normal Redhead although more Blackhead than Redhead, The Gene for Blackheadedness can not carry a gene for Redheadedness. Red dominates Black, hence this Bird being a Redhead. It certainly is a rarity and when these Speciemens pass on eventually, have it preserved, its well worth doing, taking Pictures of this Phenomena is a distinct must.
Dual Headcolours are not uncommon in Hens and when it does appear its for the same reason as in Cockbirds.
There is another Cockbird shown under the heading YELLOW BACKS, TAKE TWO, this time it is a red head with a yellow scull cap, in this case the Gene that produces the colour for yellow (Lutin) was not intirely switched off either, hence the large yellow patch on top of his head, this Bird is genetcially a Redhead for two Reasons, first it shows a Red tipped beak and not a yellow tip but, more importantly, a reccesive Factor can not carry a dominant factor, but a dominant Factor can carry a reccesive Factor. Confused????? Genetics is not the easiest of Subjects to grasp, but when the Penny drops everything lights up like a Chistmastree. I hope it all makes sense. To the Owners of these Birds, enjoy them, they are very rare indeed. Best Wishes Ralph
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jusdeb
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Welcome Kentucky 
...WOW I understood everything you said , usually genetics turns into blah blah for me 
Oh Frankston is my place of birth another
...WOW I understood everything you said , usually genetics turns into blah blah for me Oh Frankston is my place of birth another
Accept that some days you are the pigeon, and some days you are the statue.
David Brent
David Brent