This morning I woke up to one less chicken on my farm. This chicken was only 2 years old and she was acting kind of off a few weeks ago she would barely move and not be with the other chickens she would also fall asleep in the day. When I picked her up about 2 weeks ago I noticed that her breast bone was very prominent but her abdomen wasn't hard so I don't think she was egg bound. Last week she was acting normal and eating like normal. When I went to the coop this morning I saw her laying on top of the nesting boxes where she slept with her head hanging over the edge and stuff coming out of her beak. I don't know how she died but does this sound like an illness I should be worried about for the other chickens? I have a picture of her head and the stuff coming out of her beak if you would like to see it but I won't post it unless asked.