The Australian Yellow Gouldian Finch

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Australian Yellow Gouldian Finch

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Australian Yellow Gouldian Finch

Australia Yellow Gouldian mutation first appeared around 1981. This mutation is unique to Australia and has been developed over the years since it first appeared.

For more information and an insight into the history and the development of the Australian Yellow Gouldian Click Here

What makes it unique? In this mutation the melanin pigments are lost. There are two melanin pigments that are responsible for the production of reddish/brown and black pigmentation in the feathers. When these pigments are absent only the red (Astaxantin) and yellow pigments (Lutein) are produced. These two pigments are called Carotenoids.

Its is this combination that produce yellow feathers on the birds back and wings and the birds breast feathers become white. The Yellow Gouldian can have a pure yellow back. Some birds also have a green mottle effect on their back.

The Australian Yellow Gouldian carries two recessive genes. This means when an Australian Yellow is crossed with a normal Gouldian all offspring appear as a normal green backed bird carrying a single recessive gene. These Gouldian's are referred as splits (split for Australian Yellow). The split bird sometimes have a white bib under the chin or some yellow feathers appear on the back of the birds head. Yellow Gouldian chicks also have white nodules at the corner of their beaks compared to other Gouldian chicks that have blue/pearlescent nodules.

The follow table indicates the results that can be expected from pairing the Australian Yellow Gouldian (recessive gene) with the normal Gouldian and Gouldian's Split for Australian Yellow.

1.	Australian Yellow x Australian Yellow	100% Australian Yellow
2.	Australian Yellow x Normal	100% Split for Australian Yellow
3.	Australian Yellow x Split for Australian Yellow	50% Australian Yellow		50% Split for Australian Yellow
4.	Split for Australian Yellow x Normal	50% Split for Australian Yellow		50% Normal
5.	Split for Australian Yellow x Split for Australian Yellow	25% Australian Yellow	50% Split for Australian Yellow	25% Normal
Note - Pairings in 4 and 5 above should be avoided as you may not know what birds are split for Australian Yellow.