Okay, I finally was able to get some pictures of my Khakis (luv em). I don't mean to high jack someone else's thread, but thought these examples might help several of us identify our Khaki Cambells. As you can tell, I had to bribe them to get all four at once 
Their baby feathers were so lovely, and now while molting, they are somewhat of a motley mess .
The one in the top middle with the greenish beak is my guess for a boy.

That is the one in the back in this shot

He? is in the middle of the three here. I'm not convinced (or maybe it is wishful thinking) those are drake feathers. I think they may just be the black feathers, which have always been very dark, working their way off their backs from under the wings
.

I have decided that I just have to give it more time and be quite patient. They are right at 16 weeks, and still molting. So it should be obvious within another month or so. I couldn't get a real close up, but the new feathers on the three lighter ones' heads are all coming in lighter.
When they finish molting, will they still have the dark stripe on the wings? It is almost iridescent in sunlight. So pretty.