Background info: I have 7 flying mallard/rouen eggs that aren't due until the 16th. Several of them were pipped internally yesterday and one was pipped externally. A second one pipped on the wrong end last night. When do I start worrying? As of this morning there is one more slight pip and the upside down one is peeping up a storm. Other than that there is no progress. I know there person I got the eggs from said that she hatched some of her own a few weeks ago and had to help some out because the membrane was too tough. Also - is it true that ducks just take longer to pip then hatch? I am just used to chickens - ducks are new to me.