I have three BR and three RIR. Two of the rocks have a tendency to pant, one more than the other. For instance, tonight I went to check on them and close their pop door. It was in the low to mid 70s and not humid. I have a small fan in the coop and she was panting. I have noticed that she will be fine during the day if it isn't too war. They roost together and they really group up on the roost and that is when she seems to start panting. I guess my main question is "Should I be concerned?". I don't want her to be stressed or anything. She seems to sleep fine and is in every other way normal. Feedback?