So all my chickies 4weeks-6mths and are all outside together now and the days are getting super hot. Its been like 98 degrees the last few days. I have put a huge tarp covering their entire run for shade and they always have water. They are always panting everytime I go check on them. Should I be concerned of heat stroke or anything or is this just a normal thing for chickies in summer? Anything I could do to make them more comfortable, or are they fine?