Looking for suggestions on what I'm doing wrong. Incubating turkey eggs (heritage breed) and all looks fine until they are due to hatch. Most are dead. Am using Janoel 24 egg incubator with no humidity reading. Mostly dry incubate. Add water 1-2 times, then a lot more water about day 26. Temp is set to 38 deg C. Incubator sitting on wooden table. No thunderstorms. Ducks and chickens in another incubator sitting next to the turkey incubator are hatching okay. Any ideas what might be going wrong?