I'm 48 hours out from the hatch day on the eggs I have been incubating and so far I've gotten: 4 out of 5 Marans 2 out of 2 Olive Eggers (F2 Marans cross) 1 out of 5 Cream Legbars (this chick pipped and zipped in literally 3 minutes) 1 out of 3 Cochins (this chick had a very difficult hatch and a significant umbilical bleed, which I treated with iodine and cornstarch. She spent her first day very weak, sleeping on her back and looking, well... dead, but has since perked up a lot and was able to join the others in the brooder.) I started with six eggs of each breed, all were kept until day 18 at which point only the very obviously infertile from the beginning ones were discarded (and I didn't even try to discard any marans except the very obviously cracked one). The eggs were obtained locally, with the Cochins coming from one breeder and everything else from another. I am using a Brinsea Octagon 20 incubator and it has been working very well except for a problem with the humidity pump on day 21 where the tube somehow collapsed and the humidity dropped to 45% for no longer than two hours. At this point one chick had hatched and none of the other had pipped yet. All the chicks other than the Cochin appear healthy and lively with no deformities or weaknesses. This is my first ever hatch, as well as first ever experience even being in the same room with a chicken. So, considering the Marans and Marans crosses seem to have had a much better hatch experience than the rest, my questions are... 1.) Is it normal for Cochins and Legbars to take longer to hatch? 2.) If so, approximately when should I expect the rest of my eggs to start hatching? 3.) How many more days should I leave them in the incubator before I give up on them? 4.) If there is little chance of them hatching considering this is going on day 3 post hatch day, is there anything I might have done wrong that would affect some specific breeds but not others? 5.) At this point all the chicks are in the brooder as I had to remove them early in order to let the Cochin recuperate alone. Will this affect the unhatched ones? should I return someone to the brooder to peep at them? I would appreciate any and all other advice you might have for me, thanks in advance!