Hello, I am new to the chicken life and have a concern with a hen. This particular hen, Opal, is a white leghorn and she is almost 2. I have had her all her life. Last year she ate a decorative rock that my daughter had in her hand. I tried to get it from her, but she ran away with it an eventually ate it quickly because she knew I was chasing her to get it. Well, it was stuck in her throat for about a week, then it evidently went down. I would always look in the coop and never found it. So, long story short, she was laying eggs and life went on, so I forgot about the rock that was about as big around as a nickel, but round like a ball (a big marble type rock). Well, a couple months ago or more, Opal started laying soft eggs a couple times a week and those where her only eggs (normally laid almost everyday). As time has gone by, she tapered down to one soft egg a week, then none. She has not laid an egg in about 3 weeks now. About the time she stopped laying normal, she was limping and overcame that too. She has lost all the feathers off her backside (butt), down to her belly. She has been underactive for most of this time too. I at first thought maybe this rock has gotten in the way and causing grief, but now I wonder if she is egg bound or has an illness. Opal seems to eat fine, but she no longer gets on the perches at night, she sleeps in the nest box. Also, she seems to stay close to the heat lamp I have to keep the water from freezing. Her bum is always yucky looking, some poo and bald. A few weeks ago, her bum seemed very swollen and discolored. I put my hand on it and it seemed very warm, if not hot. So, does anyone have any ideas? I did not know anything about egg bound hens until recently, but I wonder if that could even be the problem. I mean, how long will a hen live that way? This has been going on for over 2 months. The hen just sits around, looks dirty in the back, doesn't lay eggs, sits at the heat, but she eats. I have always had oyster shell and good layer pellets with oyster shell added. Does this sound like an illness? Please help,