My 2-year-old Rhode Island Red hen is not doing well. On Saturday I noticed that she looked a little "puffy" with her feathers puffed out a bit more than normal. She also had a swollen tummy and seemed not as alert as normal. On Sunday it was more of the same, and today she is even more swollen, very lethargic, and a super-puffball. She has her tail down, which is very unusual. I'm not really sure what is wrong but I definitely know something is. She is waddling around and tonight couldn't even make it into the coop--I had to lift her up. Maybe she is eggbound? I googled and read that warm baths might help. I tried that tonight but it didn't do anything. I then used the hair dryer to dry her off since it's so cold this evening (she didn't mind it at all) and turned on a heat lamp in the coop. My other two hens are perfectly normal, and Penny, the RIR is eating and drinking, but hasn't pooped or laid an egg from what I've observed. What should I do? See if this sickness passes? Put her down?--if so, how? I'm pretty worried about her. Here is a photo of Penny that I took this evening: http://www.flickr.com/photos/_kristy_/3440695346/ And here is one of her looking healthy for comparison: http://www.flickr.com/photos/_kristy_/2487819207/ Any advice?