We were moving the chicken tractor today and just as we were about it set it down one BO chick dove for a bug and the edge of the tractor was set on his head. We lifted it right up and he was quite shaken. He did not close his mouth tight and I thought it was just from stress. He spent the rest of the day in the inside part of the tractor on his own but his mouth remained open a bit. Tonight he is out with the rest and is trying to eat but again his mouth will not close. I took him out and checked his beak and nothing seems sore, I can move it and close it with him not complaining. I gave him some yogurt tonight and he was able to get some of it. Is there anything I should be doing for the little one. It is 5.5 weeks old. The others are not bothering him, I say him but I am not really sure what it is. I feel terrible and hope he will be fine, please help with any suguestions.