Ok I searched through some posts, but what does it mean and what should I do if the Silkie mom moves two out of four eggs out from under herself. She is on day 11. We candle them two days ago and it seemed as if 3 out of four were good, we were unsure of number four so we left it. Can she tell better than us if they are not viable eggs? I am new to this broody deal. Thanks for any helpful suggestions or links to information. I have no problem reading from good sources.