Was wondering if anyone else has had this problem. I have a 4 yr old buff orpington hen named large marge. She was always larger than the others, hence her name and has always been top hen. Over the past few years, she's gotten really fat and has trouble breathing when it's really hot or really cold. The past few days, I've noticed the color of her comb is looking more purplish than red. She doesn't walk far before having to stop and rest. As far as I know, she doesn't have any other symptoms. She hasn't laid an egg since last summer before her latest molt. Any ideas what might be wrong, anyone else have what seems to be an obese hen? The rest of my flock of 14 are all normal size and weight.