I leave my broodies alone and let them figure it out. I'm of a mind that chickens have been hatching and raising chicks for centuries without my help. If they weren't capable of taking care of themselves, they'd be extinct. Now, I've heard of the occasional broody that *might* have starved to death on the nest. I guess I'd just call that natural selection. Or, maybe there was something wrong with the chicken in the first place. Sounds terrible, I know - but if I have a chicken that won't feed or water itself, I don't have the time to do it. Unless you're watching your broody 24/7, you don't really know if she's getting off the nest or not. They tend to want to be secretive when they do. Good luck!