Totally new to chickens. I got three barred rock hens in October and they have done great, until last night. I went out when I got home from work to check on everyone (we also have rabbits) and found one of the hens dead. I checked her over to see if it was any kind of predator but found no sign of an attack. Based on the reading I've done today I decided the sudden death must be from heart failure. Now I'm worried because when I got home today there were no eggs. I normally have 2-3 every day. Then I notice one hen has poo stuck to her fluffy but and the other hen is breathing with her mouth open. Sorry for the rambling...Here's the symptoms Sudden Death Poo on Rump No eggs Breathing with mouth open Are any of these signs of a particular disease or parasite? Thanks in advance!!