If *all* of her poop looks like that then she is probably sick, but if some of them are firm she might be okay. Can you get a picture of her? How warm is it where you are?
Does she act like she's sick? What I mean is if she can't see you, is she standing with her head and neck close to her body and are her wings droopy?
She might be sick. Hard for me to say, but I can tell you that I worry when I see one standing with it's eyes closed, head and neck tucked in with droopy wings. They'll usually perk up when the see me, so I make a habit of observing them from a distance each day. Can you weigh her?
