My chickens don't go in their coop at night. It took two nights of the door blowing shut for them to decide to sleep on the roof of the coop. And no matter how many months I go out there every night and plop them in the coop, they won't relearn. Anyway. Last night I was tired and sick and I knew the lows were only going to get into the 40's so I said to heck with it, let them sleep on the roof. Then I wake up at 4:45am to find that it is raining bucket fulls. And my silly chickens are sitting out in it and have been for I don't know how long. They're not making their normal robust morning noises, lol. Just a pitiful little miserable sound every now and then. The sun will be up in about an hour and hopefully they will get down and go in the coop or at least underneath it which is where they like to go during the day when it rains. But will sitting out in the rain and getting soaked to the bone like that give them pneumonia?