I'm curious at what age people stop grinding the crumbles finer for their quail chicks (regular coturnix, not jumbos)? Mine are now two weeks old and seem more than big enough to eat the regular crumbles but won't...they throw out all the bigger pieces, eat the 'dust', and then cry until I give them a batch I've given a whrrr in the food processor. If they were bigger doing this, like when chickens or ducks rebel against switching from crumbles to pellets, I'd just make them wait until they got hungry enough but juvenile quail are sooooo tiny I don't want to push it too hard. I don't ever remember having this issue before, but it's been quite a few years since I had quail.