She's still sitting patiently... the chick is hiding under her wing, when it's not to hot. I put chick starter and as well as a water bottle at the edge of the nest. I just worry about how hot it is... I tried to wait to get her eggs till I thought it would start to cool down, but Seriously it's 108 today...I've had broodys sit on unhatched eggs for a few days after the first chicks had hatched. Once I booted a broody off the remaining eggs after 2-3 days because her chicks were starting to look stressed and nothing else had pipped. (Those chicks weren't early.) Keep an eye on the chick. Keep chick feed and water right near the nest so mama doesn't have to take the chick too far away to find food. If the eggs are that close to hatching she will probably want to sit tight. If it has been as warm where you are as it has been here, I would expect an early hatch.