Can you be any more insulting? Coturnix quail aren't found in the wild. They've been bred in captivity for thousands of years, which is why they have issues with natural reproduction. If you were even familiar with coturnix quail, you'd know that much.
Wild quail do hatch their own eggs but I'd bet that you may have issues with getting wild quail to breed in captivity, much like many other species of animals have issues breeding in captivity.
I agree 100%
Coturnix and buttons can go broody but the odds that they will stay broody until hatch is very low.