I hatched out 9 coturnix quail this time last week. They are all alive and kicking. I am noticing that 4 of them are quite a bit larger in size than the other 5. Could the larger ones be males? Is there a way of sexing them at this age besides vent sexing. This is my first time raising quail and this is just one of my observations. Another is that I have one that is quite loud at night. It sounds kinda like it is calling to others. Almost like a cricket. Is this normal. What is little guy trying to say?