My friend found a juvenile starling near the road last night. She doesn't appear to have anything wrong with her wings, however she can't seem to stand properly. When she tries to sit or land after fluttering, she leans to one side. I've checked her legs and there are no obvious injuries or breaks. She's not bleeding and she's perfectly alert.
At the moment she is relatively calm and just looking around, as we currently have her in a bird cage. What could be wrong with her and is there anything I should do? How long should I wait before releasing her?