I'm fairly new to hatching and incubating and normally I can search and find my answers here. But today's hatch gave me a question that I couldn't find an answer to so I thought I'd make my first post. I've been hatching and incubating buttons and coturnix together all year and normally get a 50% hatch rate of both species without candeling eggs. I always place them in the incubator the same day, shut off the turner on day 13 and the buttons hatch on 16 and the cots on 17. Well it's day 16 and already about 75-80% of the cots hatched and only 5% of the buttons hatched. Does anyone have any clue why this would happen? The only thing that I can think of that I've done differently is that I kept the humidity about 15% lower on this hatch. Is it possible that the coturnix prefer a slightly lower humidity and the buttons prefer a higher humidity?