Look, just because its on the internet and has pictures don't mean its true. Plus it is very confusing because it talks about two different species. 85% humidity is a tad high for me, but I'm not going to argue about that...
Well quail aren't the easiest to hatch. While they are very fast they can prove fairly tricky. Humidity is an issue because they are game birds. You shouldn't just guess at the humidity either. Plus why go to e-how where people probably have no idea what theyre doing when you have BYC? I would...