Ok this is for one of my cousins so I might not have all of the information but here is what I got, She has chicken, button quail, cortnix quail and peacock eggs all incubating at lock down. The chicken chicks began to hatch and so did a few quails (about 8 in total) all with a perfectly normal hatch. Chirping and staggering around the incubator but 2 of the chicken chicks were on their backs with their feet trembling while the other two chicks were walking around the bator knocking the eggs over. All the chicks are alive and well (exept the two on their backs who couldn't seem to sit upright) up until yesterday when the two chicks turned up dead, a quail chick is dead, and 2 chicks still alive I'm the bator. One walking around almost dry while the other one is laying on the floor of the incubator. So far from today my cousin is left with 1 good active chick, 2 very weak newborn chicks, 1 also very weak seeming quail and another quail hatching. Chick syntomes: they won't really move much, not even try to stand after a couple hours. When transfered to a different incubator to finish drying and to clean the other bator since it was beginning to stink, the chicks didn't resist. Laying on side no noticeable movement (if any) yet still alive. Normal hatch. Incubator environmental: humidity between 80-90 (yes I know this is too high but I want to confirm if these things are the cause of the chick deaths or if it's something else) Temp is normal 99/98 Other issues: since it's extremely hard to see into my cousin's incubator clearly, she has been opening it up (along with her sisters -.-) like once or twice a day (I believe) yes I know this affects the chicks but I find all these chick deaths strangly unusual since when I hatched my quails I opened it up like 3 times at hatch (when most of them were out to prevent smolthering) Yes I know all these actions are mistakes but if there can be anything else besides this killing the chicks please let me know so we can help prevent all possible early chick deaths. Also you are all welcome to post some hatching tips below.