Found stray chick 5 weeks?

A neighbor was on a walk and rescued a stray chick being chased by a cat. She brought the chick to me because we have a few hens. My best guess is it is about 5 weeks. Not completely feathered out. Right now I have her in a dog crate. Eating and drinking great. Checked around in our neighborhood and it is not any of the other chicken owners. So we are going to keep it. So my questions is this. Will she be o.k. being raised by herself until she is old enough to be integrated in with the rest of the hens? Should I try to find a couple of chicks around the same age and try to integrate it in with them? Any thoughts?

 

That is my next step today is to make a safe runfor the chick inside the main run. The poor chick does seem lonely. I think I will call around today and see if I can find any thing close in age. So many things to think about. They need to be pullets as our neighbors would not appreciate a rooster. Then have to hope for healthy additions Thanks for your help!