I have 4 week old chicks that have been living in my air conditioned house with a heat lamp. One nicer days I have been putting on our shaded porch outside with their l lamp on. We have had mild weather,low to mid 80s. I put them out on the portch today (in the shade) it is probably about 90-92 here today. When I went out to check on them I noticed 2 of the 7 are panting. Should I leave them out there or bring them in. I know the heat lamp with keep them warm, but I also worry about the sudden change in temp of bringing them back in the air conditioning. What should I do?