I have a 1 year old red sex link that has a slightly swollen face, no sign of a cough or mucus, her butt feathers are a little dirty and her comb is unhealthy looking and slightly greyish, however she is walking around eating and acting otherwise normal. I have had three hens from this same bunch die over the last 6 months, although none of the other hens had a swollen face they just puffed up their feathers and acted as if they weren't feeling well. The first one acted this way off and on for several months, the next one only for a day or two and they next one for a couple weeks. This one that has the puffy face has been this way for at least two weeks. All the others (7 of them) seem fine, combs look healthy and at least 6 of them are laying good. I have had the occasional blood spotted egg and the occasional wrinkled egg. I have also come across some with no shell or soft shells and one with a tail (wierdest thing I have ever seen). I got these birds from a neighbor who got them from a hatchery that I do not know anything about, but it must be some mass production type place because they clipped their beaks. ok so I know that's a lot of information but wanted to give as much as I could to see what you guys think. I am attaching a picture of her from when I first noticed her swollen face however you can't really see anything and a picture of the egg with a tail (don't know if this has anything to do with anything but thought I would share anyway).