I have 5 rocks and one of them is getting lethargic and her comb is no longer red, it has turned a pale orange. I noticed at night when all the others are up in their roost that this one will not go up, she just roosts above the nests. Any ideas as to what it could be and how to take care of it? Also I have been getting an egg that has black streaks on it and I don't think it's poo, it takes alot of washing to get it off. I don't know if it's the same hen that has her comb turning light orange. Like to get some help if possible. There has been an update,,,now there are white spots on her comb. Any suggestions would help.