Alright, so I have a clutch of 7 eggs that have been doing just fine (and it is Day 42 of incubation) and I have candled all the eggs and see lots of veins, but one got a small window on it last week, and now it is just brown. What could have done that to just that one egg? I could see if it was infertile (but I saw veins), or there was a temperature spike, but wouldn't that affect all the eggs? (Plus, there was no spike that I know of). Do babies just die mid-term sometimes?
Thanks for any opinions,
Jennifer