Thanks for your answers everyone -!  glad I understand that mostly correctly.

I'll save the dilute male for someone else then -- I have several blue males I could put her with once they finish molting out and grow up a little.

What would be good to put this dilute normal male with, to get some interesting babies?  He is absolutely gorgeous.

Paula

--- On Fri, 7/10/09, Tiffany Park <nixity@...> wrote: From: Tiffany Park <nixity@...> Subject: Re: [GPA101911] yellow back genetics? To: GPA101911@yahoogroups.com Date: Friday, July 10, 2009, 3:48 PM Yes - hens can only ever be single factor for the yellow mutation, and purple breasted yellow males are DF. It sounds to me like you understand it just fine! If she is for sure /blue - you can easily get pastel males like that in the picture in the link below by pairing her with a blue male. Pastels are essentially blue bodied males that are purple breasted and have inherited a single copy of the yellow mutation. A blue male isn't the only possibility, though - you could also pair her to a Normal/Blue male, a Pastel Blue Male, or a Dilute/Blue male. Pairing her to a DF Yellow/Blue male would not work - because all of the males produced would be genetically DF Yellow, thus if they were simultaneously also blue bodied, they would appear Silver, not Pastel. :) -- Tiffany http://www.gouldian sgalore.net