Wow I've made it through 6 pages of sick chicken posts and realize I have no clue on chickens and this poor chicken doesn't stand a chance. Ok...here I go. I have a Buff Orpington chicken that is 13 weeks old. I picked 2 up 1 week ago. Daisy is not active, stays in the corner, puffed out feathers, and doesn't seem interested in eating. No other visable signs, but she seems to puff up her back end, but no poops or anything - she's clean. I have no idea how to check all the things that were suggested on here. Not sure if I should give her some medication. She is starting to lose some feathers. The other one seem fine and energetic. I did notice I heard some sneezing a few days ago but haven't heard anything since. Am I over reacting? I lost a chicken 5 years ago and was so devestated and haven't got chickens until now. I get too attached. Any advice I WILL TAKE> Thank you!