The mother must have laid them over night. In the morning we found 6 eggs sitting in a fairly obvious large hole. No idea what type of reptile mother laid them but the gardener thought snake and probably coral snake. I was out there dead heading the roses yesterday in flip flops and had not seen anything. My rose garden is made of five enormous raised beds made from the local rocks filled with soft soil and irrigated with drip hoses. Great for roses and snakes it would seem.