Well, here is my update ya'll asked for. I locked the birds out of the coop ALL day today and they did great. In the hottest part of the day 95* with heat index of 105* again they laid in the cool dirt for awhile but were up alot scratching,eating,and drinking!! Went out and opened the pop door at 7:45pm and by 8pm they were in their coop and on their roost ready for bed and I closed them up. In east Texas our summer nights can be 80* so now that they are getting grown and full feathers I'm wondering will they overheat in a coop at night? It is 8:30pm as I write this and it is still 85* outside. Their coop is 3 foot x 8foot and only 6 birds and are 8 week old white leghorns.