Hello, I have a 20 week buff orpington, who seems to be not developing right. She has always been smaller than the rest of my flock, she's the only one without growing wattles or comb, and recently has lost the ability to fly. She used to be able to climb the ladder to the coup, and now just lays on the ground while the rest of the flock roost. Sometimes when you hold her and put her down she just falls to the side on the ground. When i try to put her on the roost, she panics and justs falls down. She sleeps under the roost, and i'm scared she will get an infection or something sleeping with all the other hens feces.