I haven't really studied the genetics. If you take a look at some of the recordings of Terry's (Coturnix Corner) videos, he's had some guests that are quite knowledgable about the genetics though.
I only know the basics on the different colours and patterns. They have changed so much even...
I'd be most worried about the curled toes. If they aren't straightening out on their own, you can use painter's tape to gently straighten them out and keep them in position. If they're going to straighten, it will happen within 24 hours.
I believe what you're seeing on it's rear is unabsorbed...
Oh, no. Check under and in the towel. I stopped using towels after a chick burrowed into one and died.
Seriously, they are amazingly good at finding creative and dumb ways to die.
First, contact your local wildlife rescue. They will know more about wild quail than most.
If you can't contact the wildlife rescue, you might try taking the eggs away. She can't sit on eggs that aren't there, and will hopefully go off to live her life.
If it's a temporary thing, for an aviary, you might try having a beam at floor and ceiling with hooks that you can connect a curtain/tarp to? It will have to connect directly to the floor so the quail can't go under it.
I'm guessing about 3 weeks old. I'm not sure how long it takes CA quail to mature, but at this time of year I don't think it will need supplemental heat much longer.
Is there a wildlife rescue you can contact? In most states you need a permit to keep native species of quail. You are...
How old is the chick?
What is the brooder setup?
What are you using for bedding?
What is the temperature at chick level on the warm side? The cool side?
Unfortunately, it is possible that there is simply something wrong with the chick. You might try some Nutri-Drench or some boiled, crushed...
There are a few things that can cause the baldness. An overenthusiastic male is one. Feather plucking is another. Excess heat can cause some as well.
Feather plucking can be aggression, it could also be insufficient protein in their diet.