Please help! This year I hatched out five Rhodebar chicks. All were female. They are 19 weeks old and showing signs of sexual maturity. One of the pullets as hole in its head! I don't know how this happened maybe he cut it on the fence or the others pullets pecked at him. I don't think it would be the other hens because they have been with each other for a while. Maybe a predator! I don't know but this is really bad. I have include pictures below. THEY ARE GRAPHIC! She is in excruciating pain and her brain is exposed. I don't want to lose her and I can't bear to see her like this. PLEASE HELP!