We have a very sick cockerel. He obviously had a nasty fight with another cockeral when he escaped from his pen as I found him trapped under the gate. He was very lame and bruised but has got quieter and his leg seems very cold, he is laying on the floor with his wings spread. I have taken him away from the others and put him in a box with food and water in a warm shed has anyone got any suggestions as to what else I can do for him.