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Yellow goulds

Posted: Sat Dec 05, 2009 12:46 pm
by bernd76287
Hallo!
I read an interesting article about the colors goulds can have.
A 2 factor yellow cock has lost the blue color and also all phaemelanin and eumelanin. This is right!?
Sometimes it would be possible that a bird occurs , which hast only lost the blue color. See my painted gould. I think it must look like my picture.
neue Mutation Gelb.jpg
neue Mutation Gelb.jpg (11.67 KiB) Viewed 813 times
I found a female under my birds with yellow-green feathers on the back. The yellow belly is very intensive, nearly orange. What do you think . its normal?
0.1GK grüngelb1-1.jpg

Re: Yellow goulds

Posted: Sat Dec 05, 2009 6:05 pm
by nixity
I have never heard of a yellow gouldian that had masked structural blue but could still fully produce melanins; the two go hand in hand.. the reason why the blue is masked is because of the melanin suppression.

The only real "exception" would be a SF Yellow male which only partially suppresses the melanins; but they still cannot fully manufacture them.

I don't see the yellow on the back feathers at all of this hen. She just looks like a normal green back to me :)

Re: Yellow goulds

Posted: Wed Dec 30, 2009 3:10 pm
by Total Finch
belly looks like mine seems fine