I ran back out with bat receiver tonight and got a good profile of the house. I caught them maybe a minute and they started coming out!
I had 35, and last 5 or so came out 5 min later than others. I think Cloudman may be on to something. It was 82 today in North La. I did put the bought guano out last Sat, so maaaybe it is making a difference. The picture showed them all in the back chamber and 3 days ago they were not out by 8:40pm..So they may have been hibernating like Cloudman said. Big difference tonight. Others post what your houses are doing. Maybe we can all learn some things. Not a one was in the new bigger house I put up last May only 6" away!!

