Shipping live birds is.. Well. Troublesome and possibly bad for the animals. In Denmark, you can't even do it, as far as I know. Only by means of private transportation. Why must they be shipped? You might not have the same concentration of button quails where you live as we do here, but I strongly doubt I could drive a car for half an hour in any direction without passing at least one place that has button quails, no matter where I start. Surely, it must be possible to find them within a reasonable distance from you, unless you live in the middle of nowhere?