Hello I have a chicken that seems to have all sorts of problems. She has a hurt leg or foot and is always limping. Because of this the other chickens attack her and run her off. She also looks quite distressed as her wing feathers are thin and she is missing feathers on her head. Her comb has black on it and I dont know if its bugs or from bugs. I dont know her age because I adopted her, she is also eating and drinking fine but she seems to squak a bit and moan lightly. She is also a bit light compared to other girls. I am including pictures to help diagnose. Thank you for all your help in advance. Please feel free to ask any further questions.