Yellow Starfinches

Includes Species Profile.
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Stavros01
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Location: Portugal

20 Oct 2012, 06:18

Hi to all

I would like to know how does this mutation is caried.
Is it a combination between mutations or a caried one and if so can males and hens be split to yellow??

Thanks


Best regards
Gustavo
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SamDavis
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Location: Douglas Park NSW

20 Oct 2012, 06:34

If you mean the common yellow faced star finch then it is autosomal recessive, so yes both hens and cocks can be splits.
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Stavros01
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20 Oct 2012, 06:47

No, SamDAvis My mistake.
I meen yellow body star finches
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Tiaris
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20 Oct 2012, 06:50

Yellow bodied Stars are a combination of the Fawn (autosomal recessive) and Cinnamon (sex-linked recessive) mutations.
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Stavros01
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20 Oct 2012, 07:11

Tiaris wrote:Yellow bodied Stars are a combination of the Fawn (autosomal recessive) and Cinnamon (sex-linked recessive) mutations.
So it is impossible for a bird be split to yellow correct??
And if we cross a yellow X yellow, what is going to born??
And what do we get with, pfor exemple cinnamon X yellow or fawn os classic X yellow??

Tiaris, is it possible to post a picture of a fawn star finch and a cinnamon star finch??
It is because we may have diferent denominations in Portugal...


Regards
Gustavo
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Tiaris
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20 Oct 2012, 12:06

It is possible to get normal phenotype Stars split to fawn & cinnamon in males & split to only fawn in females.
The only "split yellow" birds I use for breeding YBs from are Fawn split cinnamon cocks which I pair to Yellow-bodied Hens (& sometimes to fawn hens).
I also sometimes pair a YB cock to a fawn hen.
You cannot get hens split to the cinnamon mutation as it is sex-linked recessive.
I think in Europe the bird we call cinnamon is called an isabel. Our fawns may be called dilute in Europe (not sure on this one though).
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Tiaris
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20 Oct 2012, 12:11

I could try for a fawn photo a bit later but I don't have any cinnamons. There is considerable variation in the degree of dilution in Australian stocks of the fawn mutation and mine are less diluted than most as I like to select for prominent spotting & bright yellow belly colour which more dilution tends to fade.
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Stavros01
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21 Oct 2012, 03:02

Ok, Tiaris i think i understand.
But i do not have a back up to suport for what i have here.
I do not no what this couple is: cinnamon or fawn or any oyher mutation, if it exits.
What i call to what i have is pastel but i do not no if this is a mutation. Pied they are for shore.
I will try to take some pictures of this couple. They have 3 chicks and they are pied for shore to.


Gustavo
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Stavros01
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21 Oct 2012, 03:05

And a genetic forecast, does it exists??

Best regards

Gustavo
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Tiaris
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21 Oct 2012, 06:31

They are both dilute-bodied mutations but the head colour remains apparently unaffected. Pastel is the same or very similar at least to cinnamon. If there is no isabel or other dilute-bodied mutation available to you, then you cannot go any further. Pied is very different to both fawn & cinnamon.

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