I have a four week old pekin chick who was with his mother in the run when I found one of the other hens had got into their section and fought with the mother. I found feathers pulled from the mother but she is ok but one of her chicks was sitting on the ground with its eyes closed. No visible signs of injury but it wont get up or eat. I dipped his beak in water and opened his eyes to drink for a couple of seconds then went back to sitting all puffed up with closed eyes. I think the hens may have trodden on him while fighting. I have him inside the house, keeping him warm. Is there anything more I can do for him??