What I have done is right as they're laid, put them in the incubator. Then fairly similar to the same as incubating chickens eggs, but peachicks are more sensitive to humidity than chicken chicks are. I've kept peahen eggs for 7 days without incubating and got 100% hatch rate before. I did that last year. Collect 4 eggs from my Indian Blue hen. Collected 4 eggs from each White peahen as well. My White peahen eggs didn't do so well, the male was too young. I only had one chick hatch from the peahen. With a mature male and female, hatch rate goes up significantly. What I did was rotate eggs twice a day by hand. When rotating I put the coolest side up. I never do lockdown. I rotate my eggs from day 1 until I feel pecking or hear chirping. I think I started the humidity for the first week in the higher 30% lower 40% and slowly increased. When hatching came around I remained in between 65% and 70% humidity. I incubate at 99.8 F from start to finish.