I have a 3 year old hatchery buttercup that I suspect is internally laying. She came back from her molt fine, and started laying again. She laid fine (not everyday, but normal pattern) for 16 days. Then she quit laying completely. I would notice that she was spending time in the nest box, but nothing was coming of it. 5 days after she stopped laying, I witnessed her lay a yolk only with a membrane around it. When I brought it inside and opened it, it had that half cooked scrambled egg look to it. That was 2 weeks ago. I have found one other membrane only "egg" dropped from the roost in that time. She is still spending time in the nest box, though nothing comes of it. She's eating, drinking and acting fine. Her comb is still nice and red. So my question is, if she is internally laying, roughly how long is it until infection sets in (peritonitis) and how long does she have to live? What symptoms will show up that I can know that she is for a fact internally laying?