Fourth times a charm...I have finally managed to hatch 4 Lavender Orpingtons! I've been tweaking my incubation techniques all summer trying to have a successful hatch. I started with six eggs, one quit after day 7 and one made it to lockdown but didn't hatch and had an unabsorbed yolk sac. Of the other four, two pipped yesterday (day 20) with one hatching last night and the other this morning. The other two hatched this afternoon.