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Can someone help me with this?
Is a Grey green ringneck a green bird or a blue bird? Or to ask another way what would be the expected outcome of a Greygreen and a Grey ?

If there is green within the name I would assume that it is a green series bird, where-as a grey ringneck is a blue series.

You need to know if you have double factor or single factor birds. Check out this calculator and let me know if you need any help!
http://www.gencalc.com/gen/eng_genc.php?sp=0PsitIR


http://www.flatratewebsites.com/sites/o ... chart.html

I think this information is correct:

Apparently, grey and blue are so closely linked, that a grey-green is already split to blue.
Grey-green X blue will produce grey greens, blues, greys, greens.

grey-green X grey will produce greys and grey-greens.
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If the dark factor (grey) separates from the blue, you could have a dark factor green,
which is a rich emerald green.

That's not the information I found out... and if grey-greens are automatically split blue (which they are not, because they are separate mutations) then your second "breeding" would also produce blues.

Looking at the genetic calculator, there is the blue, grey, and dark factor. All are separate mutations. Both dark and grey mutations come in DF (Double Factor) and SF (Single Factor).

So as I understand it, a grey-green is a green bird with 1-2 grey factors. A Grey bird is a blue bird with 1-2 grey factors. Therefore, if we assume that the birds are single factor, then this would be the outcome....

Males are 1.0
Femalaes are 0.1

1.0 grey(sf) green x 0.1 grey(sf) blue
% from all 1.0
25.0% 1.0 grey(df) green /blue
50.0% 1.0 grey(sf) green /blue
25.0% 1.0 green /blue
% from all 0.1
25.0% 0.1 grey(df) green /blue
50.0% 0.1 grey(sf) green /blue
25.0% 0.1 green /blue

If the parents are double factor or have any other mutations then the results would be different. Now, if I'm wrong, please correct me, but that is as I understand it... I know more about cockatiel and budgie mutations than other species, but generally speaking the genes ought to work in the same fashion (except for species who may have unique mutations).

If you breed a grey bird that is not split to anything else to a plain green bird that is not split to anything else you'll end up with 50% grey-green split to blue and 50% green split to blue. If you were to then take one of these grey-green split to blue birds and pair it with another plain green bird that isn't split to anything else then you'll end up with 25% grey-green split to blue, 25% green split to blue, 25% grey-green not split to blue and 25% plain green not split to blue.

Interesting discussion, yes ?
Then, it would appear that every grey bird is automatically split to blue, which is either single or double factor grey,
and always double factor blue (recessive). My perception is that the dominant grey gene and the recessive blue genes are
so closely linked in proximity, that a translocation/separation is possilbe, but it is a random rather than a mathematical
probability, regarding grey-greens being either split to blue, or not. (In cockatiels, this was the initial occurence with lutino-pearls, and a lutino male which is split to cinnamon pearl (3 sex-links) will occassionaly produce a cinnamon-pearl daughter...in my breedings.)

Well, every grey bird *IS* a blue bird. But a grey-green bird *IS NOT* blue. I suppose a good example using another species would be the dominant yellowcheek in cockatiels. It can be double factor or single. The grey-green ringneck is the equivalent of a yellowcheek normal cockatiel, where-as a grey ringneck is the equivalent of a yellowcheek whiteface cockatiel. Saying that *every* grey ringneck, including grey-greens are split blue is like saying that every yellowface normal cockatiel is split whiteface. Now, normals *can* produce the blue mutation, but if they aren't split for the mutation then it's less likely to occur. But you are saying it as if a grey bird is split blue when it can't be split if it is already a visual... like saying the yellowcheek whiteface is split whiteface...

SF Grey-Green x Green
50% SF Grey-Green
50% Green

SF Grey-Green x SF Grey-Green
25% DF Grey-Green
25% Green
50% SF Grey-Green

Green x SF Grey (Grey-Blue)
50% SF Grey-Greens/blue
50% Green/blue

Green/Blue x SF Grey (Grey-Blue)
25.0% SF Grey-Blue
25.0% Blue
25.0% SF Grey-Green/Blue
25.0% Green/Blue

And the example by Daybird
SF Grey-Green/Blue x Green
25.0% SF Grey-Green
25.0% Green
25.0% SF Grey-Green/Blue
25.0% Green/Blue


Am I getting that right, or am I completely lost?

MFids, to my knowledge, your calculations are correct.