Welcome to BYC. Hatch day is an exciting time. I understand your concern for those yet to hatch. I remember my first hatch last November - I told my boss I needed the day off because I was a proud new papa. It was a natural hatch and I was very sure of the hatch date based on when Ms. Rock went broody. At any rate in the morning of hatch day when I went to check on Ms. Rock and her clutch, boink, out popped a little blonde head from under her. Ms. Rock nurtured 7 chicks to adulthood. 5 hens and two roosters. I culled the roosters - only need one! Today "DN", one of Ms. Rocks daughters displayed signs of broodiness, she has not moved from her nest in the last 14 hrs. She is setting on 27 eggs. How much excitement can one stand! Well to make it more exciting yet I have 41 eggs under incubation due to hatch June 3. If everything works well the natural hatch should be about June 8. In Mississippi our humidity this time of year fluctuates between 90+% in the early morning to around 40% in the late afternoon. Of course the incubator humidity I try to keep between 50% and 55%. The whole point of what I'm doing is to compare the overall quality of life and behavior characteristics of natural hatched chickens and those from the incubator. Also I am testing and verifying a sexing method based on observing the tail feathers or lack there of for 1 to 7 day old chicks. The theory is pointy butts = pullets and rounded butts = cockerels. Of course that configuration changes as they advance into adulthood. Once again welcome to BYC -