Me personally, I like the purebreeds... but I like being able to choose whether I want all one breed or a mix, but not mutts... does that make sense? I have a couple of birds that I know are mutts - brown coturnix with white TAM mixed in. They're pretty, but they're not pure, which is what I'm looking for. My customers don't seem to mind the mutts, though. I plan on keeping mine separated by colors (and yes, I want on the list for blacks, too...)