My 8-9 week old barred rock hen has been puffed up and sleeping for about 4 days. She has her tail really low and kind of a hunched back with her head tucked in. It’s been about 70 degrees during the day. She’s usually with the other chickens but she isn’t as active and not as interested in treats like normal. If I go in there, since they aren’t totally used to me yet, they will run and she still does. If she hears a noise she will wake up. (She’s been sleeping with her head tucked in her wing/on her back) they are on hen scratch and have clean water all the time. I saw a very bloody area on the ground with some poop and some mucus stuff in it, it mainly looked like someone had got cut though. I checked all 4 of them and nobody had cuts or any reason for bleeding. What could this be? I have been bribing her in the house, in the mornings so I could see her poop and she finally did today (4/22/18) the first one what very watery and white and the second one which was maybe a minute later was dark brown diarrhea.