Oh my. Seems like a tough decision. I would definitely NOT give the bird to the lady, simply because of the dirty environment. With all those many many animals that live with her, it may be way to stressful on a little baby bird. Is there any way you can call her for advice on the nursing part though? Perhaps calling an avian vet for advice would be helpful. I'll try to look for sites on the web and if I find a good one about baby jays, I'll post it for you. With all the pets you have and that animal loving heart, I'm sure you can handle it well. Good luck!

Ps. How is the bird doing now?