We've had our two coturnix hens inside for about a week now. They're living a very pampered life in a guinea pig cage and are active and seem happy. I have noticed that right before they lay an egg, they make a very sweet squeaky song. It starts low, then rises and turns into a tuneful trill that lasts until they lay the egg. Then they walk away as if nothing happened and seek out the food cup again! We never would have noticed this if we hadn't brought them inside. Just one more reason to love my quail!