I just got 4 hens today from my friend's chicken farm. They all clucked around and ate the veggies I gave them in the run. They went in the coop at night and I went to check on them just after dark and one is roosted, but appears to be panting. It wasnt unusually hot or anything today and they have a waterer. Could it just be stress from the over an hour drive and new home? The waterer is a nipple waterer and I pressed their beaks to it and they got the water so it looks like they know how to use it... maybe thats the issue?