dove found with injured leg

[SewnSally]

I would so greatly appreciate any reply!

Yesterday afternoon I found a mourning dove fledgling (has all her feathers, a bit downy underneath, flies ok) in our appartment parking lot. She won't put any weight on one of her legs, but it doesn't appear broken or bleeding. She was sort of bedraggled looking so I brought her in (we have roaming bands of "house" cats that hunt for song birds). I have given her water which she will drink from the end of a straw. She will peck at seed somewhat but I don't know how much she is eating. Her wings don't appear to be broken or injured and she can fly around the appartment. I have a sock full of rice that I heat up in the microwave place next to her to keep her warm and have tried offering her baby food with avian vitamins which she sort of licks at. What else should I do?
I am really stuck as it is Sunday and no rehab places are open. If she can't make it in wild, I would take care of her...
Any suggestions at all? I hope she will be ok?

sal