So my neighbor has 6 coturnix quails that he picked up about a month ago at an auction. They started laying eggs right away and he just left them in the enclosure, outside, untouched wherever they were laid. He didn't want them so I took 3 out and stuck them in my incubator, just for fun. They are old eggs and feel paper thin. To my surprise, 2 of them have started to develop. Are quail eggs usually so thin? They feel brittle. Any chance that they will actually hatch??