I went into day 18 with 13 maran eggs, 9 silkies, and 2 frizzles. First to hatch was one frizzle, then a silkie. Then the marans.... 10 of them. At the end, one silkie was helped out, but didnt make it. So total is 10 marans, 1 silkie, 1 frizzle of 24 eggs.....half. So whats going on here?? All of them were alive and kicking at day 18. Temperature through the hartch was a fairly consistent 100-101.5. Hudimity at about 67, until some hatched then it went up to about 75. Why would 10 of 13 maran eggs hatch, but only 1.5 of 9 silkies? I do great with this incubating up until day last three days, then they die on me, and I dont know why. All of the eggs that didnt hatch, never even pipped. Heres a weird tidbit of info. I was worried about the maran eggs because they had terribly irregular air sacs. But they hatched, and the silkies with the good air sacs didnt. I dont get it.