This morning at around 9:30 I went to open the coop and at the front of the door laid a dead Rhode Island Red pullet (7 months old). She had been dead for at least 2 hours, her face was frozen but her body was not. The day before she was just fine, and did not seem to have any issue, even before she went to sleep there was nothing noticeable about her behavior. They do get up at 3:00 am due to a light timer, so it is a fair chance she died early in the morning, but not during the night because she had food in her crop, which also makes me wonder that it probably wasn't some parasite or intense disease or else she wouldn't of been eating normally. Her body position is also odd, she was on her stomach sprawled in a straight line with her head curled in towards her. This makes me think a possible cardiac arrest, her eyes were three quarters closed not sure if that means anything. Was there possibly some genetic anomaly that caused some sort of organ failure, even this young? Note out of the 40 plus birds I taken care of the past year, this is the first matured bird I have had pass away, last death was due to a genetically messed up chick, so I have no experience with this sort of situation. Analysis of the scene and body: Body was right in front of the door, stiff stretched out on its stomach, head curled in towards its body, feathers on the back of the head were slightly standing up, crop was about 1/3 full, eyes almost closed, mouth frozen shut, vent looked normal and no external injuries at all, could not feel broken bones, no weird poop that I could find that may hint parasite or other internal issues. There was plenty of food and water, fair lighting, quite cold around 25 degrees inside the coop but with no wind chill and access to 16 feet of roost and 5 nesting boxes. The other chickens were calm so no predator (coop is predator proof) and the chickens were not even fazed by the dead bird, this particular chicken was not at the bottom of the pecking order but was at least the bottom 4th. Possible causes of death listed from my opinion of most likely to least likely. 1. Random organ failure due to genetic issues 2. Suffocation, possibly the pullet may have eaten a piece of straw or rock that became lodged in the airway 3. Death by cockerel, the GLW cockerel we have is fairly bigger than the pullets, maybe he tried to mate with her which caused a freak accident resulting in death 4. Hypothermia, maybe she was on the roost all warm and then hopped off, causing her body to go into shock at the sub 30 degree temps Any ideas? As I was writing this I did remember she is usually on the lower roost, there are two, 8 foot roosts, but most of the time all 16 chickens squeeze onto the top roost, but sometimes she gets kicked to the lower one, I highly doubt this is why she died but just something I thought of.