Aussie Finch Forum

I have always for years breed my w/c y/b goulds with w/c g/b and always seem to have got yellows out of them,I also breed w/c g/b bu themselves and always got w/c g/b out of them.This year due to space constraints I had a serious cut back, with these two mutations just keeping 4 of each mutation by mid year.Why because i prefer to keep 1 pair per aviary.These birds I kept at my fathers aswell,And he is a keeper more then breeder if you get my drift.So a plain seed diet is all they got.All year i have when checking them been throwing out clear eggs.And today after not checking the nests for a while only keeping up the plan seed diet they have young.The yellows have been kept in one aviary the greens in another.So after a long story cut long I believe now what I suspected 90% sure they are Aussies and not euros.Please correct me if I am wrong here are some photos.I need to be 100% sure before mixing them with any Of the other aussies, I bought early in the yr which are duds so far.I cant think of any other explanation and have never in the past had yellow to yellow.

scuffy mum


posibly dad


odd looking bunch

gomer wrote: here are some photos

Ummmm where

had to re size them.have another look.

All of those yellow ones definately look euro yellow but the others look normal, wtf?? Too much for my brain at how that works.

Last time i put up photos there was division on what they were over a yr ago.But euros dont have splits and this is the first time i have had them this way so they must be aussie right ? there is also another cock in with them which i could not upload the photo a single factor with the blue present.

Looking at the picture of the young I would say they are sex linked euro yellows and not aust yellows as young aust yellows have dark markings on their backs/wings and they also have white noddules, it's not that clear in the picture but your yellow chicks look to have blue noddules indicating euro yellows.

To produce normals from euro yellows the cock must have been SF and the two normals in the nest should be hens.
From following cross:

Male:
Red (Head) - White (Chest) - SF Yellow (Body)
Female:
Red (Head) - White (Chest) - Yellow (Body)

We'll get following results:
25% Male >> Red (Head) - White (Chest) - DF Yellow (Body)
25% Male >> Red (Head) - White (Chest) - SF Yellow (Body)
25% Female >> Red (Head) - White (Chest) - Yellow (Body)
25% Female >> Red (Head) - White (Chest) - Green (Body)


Here's some pictures of Aust Yellow chicks about the same age, which might help show the difference in colour of the young and the noddules.

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White breast lightens Euro yellow, so a SF cock can appear as light as a DF PB. An Aus yellow cannot throw normals, they cannot be split for any colour except blue, I'd say you have a SF Euro Yellow cock and a Euro yellow hen which can throw green hens as has already been indicated.

See pics here of SF RHWB cock. He doesn't exhibit any green the way a PB bird would.

the yellow chicks have yellow nodules and the green normal.The parents have a small amount of green on them? I am not concerned either way what hey are just want to know either way because i wish to keep both the euro and aussie.I believe euros will soon start getting more scarce.

Aus yellow have white nodules, not yellow.

Gomer, your only way to know for sure is to split the pair up this year and do a test breed, each with a normal which is unlikely to be split Aus yellow. You'll get all normal hens and some SF cocks from the yellow hen pair and some SF cock and all yellow hens from the cock pair.

Incidentally, the Euro yellow gene is still considered "fatal" by many breeders with high numbers of young dying in the nest if you have DF cock and Euro hen, if you want to build up you supply you need SF cocks (which I reckon you have due to the normals in the nest) not DF cocks when pairing with yellow hens.

BTW, there is one other pairing that would yield the results you have, but this answer will be on no help in your quest until the young mature. SF Euro yellow cock and Aus yellow hen will produce SF cocks, Euro yellow hens, normal cocks and normal hens. If you have **any** normal cocks in that clutch this is your pairing.

gomer wrote:the yellow chicks have yellow nodules and the green normal.The parents have a small amount of green on them? I am not concerned either way what hey are just want to know either way because i wish to keep both the euro and aussie.I believe euros will soon start getting more scarce.

If the green is even across the whole back and is really a hue over the yellow then they are unlikely to be Aus. Try to get photos of their backs, especially the cock. Aus yellows are splotches rather than a hue and are generally darker green (almost a grey green) than in a Euro.

One way in the future to make sure is to keep only PB Euros as Aus cannot be PB.