Today I made the decision to slaughter a Rhode Island Red that I hadn't seen eat in nearly a week. Every time I brought food or water into the coop she would just stay on her perch or outside. I thought she was sick and and was worried about the rest of my flock. We examined her before slaughter to see if she had an impacted crop or if she was egg bound. We found nothing. She was quite a large bird and was very sedentary compared to the rest of our flock. When I processed her I found that she was the fattest chicken I have ever seen. I have no idea how a chicken who acted so ill could have so much fat on her. I was wondering if anyone had any ideas?